|
3. Execution
<br />Not Used
<br />End Of Section 01720
<br />Section 02070
<br />Selective Demolition
<br />1. General
<br />1. 1. Scope of Work
<br />1.1.1 Demo] iti on and removal of selected portions of a building.
<br />1.1.2 Demolition and removal of selected site elements.
<br />1.1.3 Patching and repairs.
<br />1.2. Definitions
<br />1.2.1 Remove, or Demolish: Remove and legally dispose of items except those indicated
<br />to be reinstalled, salvaged, or to remain the Owner's property.
<br />1.2.2 Remove and Salvage: Items indicated to be removed and salvaged remain the
<br />Owner's property. Remove, clean, and pack or crate items to protect against
<br />damage. Identify contents of containers and deliver to Owner's designated storage
<br />area.
<br />1.2.3 Remove and Reinstall: Remove items indicated; clean, service, and otherwise
<br />prepare them for reuse� store and protect against damage. Reinstall items in the
<br />same locations or in locations indicated.
<br />1.2.4 Existing to Remain: Protect construction indicated to remain against damage and
<br />soiling during selective demolition. When permitted by the Architect, items may be
<br />removed to a suitable, protected storage location during selective demolition and
<br />then cleaned and reinstalled in their original locations.
<br />1.3. Materials Ownership
<br />1.3.1 Except for items or materials indicated to be reused, salvaged, reinstalled, or
<br />otherwise indicated to remain the Owner's property, demolished materials shall
<br />become the Contractor's property and shall be removed from the site with further
<br />disposition at the Contractor's option.
<br />1.4. Submittals
<br />1.4.1 General: Submit each item in this Article according to the Conditions of the
<br />Contract and Division I Specification Sections, for information only, unless
<br />otherwise indicated.
<br />1.4�2 Proposed dust -control measures.
<br />1.4.3 Proposed noise -control measures.
<br />1.4.4 Schedule of selective demolition activities indicating the followin&
<br />1.4.4.1 Detailed sequence of selective demolition and removal work, with starting
<br />and ending dates for each activity.
<br />1.4.4.2 Interruption of utility services,
<br />1.4.4.3 Coordination for shutoff, capping, and continuation of utility services.
<br />1.4.4.4 Detailed sequence of selective demolition and removal work to ensure
<br />uninterrupted progress of Owner's on -site operations.
<br />1A.4.5 Coordination of Owner's continuing occupancy of portions of existing
<br />building and of Owner's partial occupancy of completed Work.
<br />1.4.4.6 Locations of temporary partitions and means of egress.
<br />1.4.5 Inventory of items to be removed and salvaged. 1
<br />1.4.6 Inventory of items to be removed by Owner,
<br />1.4.7 Photographs or videotape, sufficiently detailed, of existing conditions of adjoining
<br />construction and site improvements that might be misconstrued as damage caused
<br />by selective demolition operations.
<br />1.4.8 Record drawings at Project closeout according to Division I Section "Contract
<br />Closeout."
<br />1.4.8.1 Identify and accurately locate capped utilities and other subsurface
<br />structural, electrical, or mechanical conditions.
<br />1.4.9 Landfill records indicating receipt and acceptance of hazardous wastes by a landfill
<br />facility licensed to accept hazardous wastes.
<br />1.5. Quality Assurance
<br />1.5.1 Demolition Firm Qualifications� Engage air experienced firm that has successfully
<br />completed selective demolition Work similar to that indicated for this Project.
<br />1.5.2 Regulatory Requirements: Comply with governing EPA notification regulations
<br />before starting selective demolition. Comply with hauling and disposal regulations
<br />of authorities having jurisdiction.
<br />1.5.3 Predemolition Conference: Conduct conference at Project site to comply with
<br />preinstallation conference requirements of Division I Section "Project Meetings."
<br />1.6. Project Conditions
<br />1.6.1 Owner will occupy portions of the building immediately adjacent to selective
<br />demolition area. Conduct selective demolition so that Owner's operations will not
<br />be disrupted. Provide not less than 72 hours' notice to Owner of activities that will
<br />affect Owner's operations,
<br />1.6.2 Owner assumes no responsibility for actual condition of buildings to be selectively
<br />demolished.
<br />1.6.2.1 Conditions existing at time of inspection for bidding purpose will be
<br />maintained by Owner as far as practi - cal.
<br />1.6.3 Asbestos: It is not expected that asbestos will be encountered in the Work. Ifany
<br />materials suspected of containing asbestos are encountered, do not disturb the
<br />materials. Immediately notify the Architect and the Owner.
<br />1.6.3.1 Asbestos will be removed by Owner before start of Work.
<br />1.6.4 Storage or sale of removed items or materials on -site will not be permitted.
<br />1.7. Scheduling
<br />1.7.1 Arrange selective demolition schedule so as not to interfere with Owner's on -site
<br />operations.
<br />1.8. Warranty
<br />1.8-1 Existing Special Warranty: Remove, replace, patch, and repair materials and
<br />surfaces cut or damaged during selective demolition, by methods and with materials
<br />so as not to void existing warranties.
<br />2. Products
<br />2.1. Repair Materials
<br />2.1.1 Use repair materials identical to existing materials.
<br />2-1.1.1 Where identical materials are unavailable or cannot be used for exposed
<br />surfaces, use materials that visually match existing adjacent surfaces to the
<br />fullest extent possible.
<br />2.1.1.2 Use materials whose installed performance equals or surpasses that of
<br />existing materials.
<br />3. Execution
<br />3.1. Examination
<br />3.1.1 Verify that utilities have been disconnected and capped.
<br />3.1.2 Survey existing conditions and correlate with requirements indicated to determine
<br />extent of selective demolition required.
<br />3.1.3 Inventory and record the condition of items to be removed and reinstalled and items
<br />to be removed and salvaged.
<br />3.1.4 When unanticipated mechanical, electrical, or structural elements that conflict with
<br />the intended function or design are encountered, investigate and measure the nature
<br />and extent of the conflict. Promptly submit a written report to the Architect.
<br />3.1.5 Survey the condition of the building to determine whether removing any element
<br />might result in structural deficiency or unplanned collapse of any portion of the
<br />structure or adjacent structures during selective demolition.
<br />3.1.6 Perform surveys as the Work progresses to detect hazards resulting from selective
<br />demolition activities.
<br />3.2. Utility Services
<br />3.2.1 Maintain existing utilities indicated to remain in service and protect them against
<br />damage during selective demolition operations.
<br />3.2.1.1 Do not interrupt existing utilities serving occupied or operating facilities,
<br />except when authorized in writing by Owner and authorities having
<br />jurisdiction. Provide temporary services during interruptions to existing
<br />utilities, as acceptable to Owner and to governing authorities.
<br />3.2.1.1.1 Provide not less than 72 hours' notice to Owner if shutdown
<br />of service is required during changeover.
<br />3.2.2 Utility Requirements: Locate, identify, disconnect, and seal or cap off indicated
<br />utility services serving building to be selectively demolished.
<br />3.2.2.1 Owner will arrange to shut off indicated utilities when requested by
<br />Contractor.
<br />3.2.2.2 Arrange to shut off indicated utilities with utility companies.
<br />3.2.23 Where utility services are required to be removed, relocated, or
<br />abandoned, provide bypass connections to maintain continuity of service
<br />to other parts of the building before proceeding with selective demolition.
<br />3.2.2.4 Cut off pipe or conduit in walls or partitions to be removed. Cap, valve,
<br />or plug and seal the remaining portion of pipe or conduit after bypassing.
<br />3.2-3 Utility Requirements� Refer to Division 15 and 16 Sections for shutting off,
<br />disconnecting, removing, and sealing or capping utility services. Do not start
<br />0
<br />selective demolition work until utility disconnecting and sealing have been
<br />completed and verified in writing.
<br />3.3. Preparation
<br />3.3.1 Drain, purge, or other -wise remove, collect, and dispose of chemicals, gases,
<br />explosives, acids, flammables, or other dangerous materials before proceeding with
<br />� selective demolition operations.
<br />3.3.2 Employ a certified, licensed exterminator to treat building and to control rodents and
<br />vermin before and during selective demolition operations.
<br />3.3.3 Conduct demolition operations and remove debris to ensure minimum interference
<br />with roads, streets, walks, and other adjacent occupied and used facilities.
<br />3.3.3.1 Do not close or obstruct streets, walks, or other adjacent occupied or used
<br />facilities without permission from Owner and authorities having
<br />jurisdiction. Provide alternate routes around closed or obstructed traffic
<br />ways if required by governing regulations,
<br />3.3.4 Conduct demolition operations to prevent injury to people and damage to adjacent
<br />buildings and facilities to remain. Ensure safe passage of people around selective
<br />demolition area.
<br />3.3.4.1 Erect temporary protection, such as walks, fences, railings, canopies, and
<br />covered passageways, where required by authorities having jurisdiction.
<br />3.3.4.2 Protect existing site improvements, appurtenances, and landscaping to
<br />remain.
<br />3
<br />3.3.4.3 Erect a plainly visible fence around drip line of individual trees or around
<br />perimeter drip line of groups of trees to remain.
<br />3.3.4.4 Provide temporary weather protection, during interval between demolition
<br />and removal of existing construction, on exterior surfaces and new
<br />construction to ensure that no water leakage or damage occurs to structure
<br />or interior areas.
<br />3.3.4.5 Protect walls, ceilings, floors, and other existing finish work that are to
<br />remain and are exposed during selective demolition operations.
<br />3.3.4.6 Cover and protect furniture, furnishings, and equipment that have not been
<br />removed.
<br />3.3.5 Erect and maintain dustproof partitions and temporary enclosures to limit dust and
<br />dirt migration and to separate areas from fumes and noise,
<br />3.3.5.1 Construct dustproof partitions of not less than nominal 4-inch (I 00-mm)
<br />studs, 5/8- inch (16-mm) gypsum wallboard with joints taped on occupied
<br />side, and 1/2-inch (13-mm) fire -retardant plywood on the demolition side.
<br />3.3.5.2 Insulate partition to provide noise protection to occupied areas.
<br />3.3.5.3 Seal joints and perimeter. Equip partitions with dustproof doors and
<br />security locks.
<br />3. 3 3. 5.4 Protect air -handling equipment.
<br />3.3.5.5 Weatherstrip openings.
<br />3.3.6 Provide and maintain interior and exterior shoring, bracing, or structural support to
<br />preserve stability and prevent movement, settlement, or collapse of building to be
<br />selectively demolished.
<br />3.3.6.1 Strengthen or add new supports when required during progress of
<br />selective demolition.
<br />3.4. Pollution Controls
<br />'
<br />14.1 Use water mist, temporary enclosures, and other suitable methods to limit the spread
<br />of dust and dirt. Comply with governing environmental protection regulations.
<br />3.4.1.1 Do not use water when it may damage existing construction or create
<br />hazardous or objectionable conditions, such as ice, flooding, and
<br />pollution.
<br />3.4.2 Remove and transport debris in a manner that will prevent spillage on adjacent
<br />surfaces and areas.
<br />3.4.2,1 Remove debris from elevated portions of building by chute, hoist, or other
<br />device that will convey debris to grade level.
<br />3.4.3 Clean adjacent structures and improvements of dust, dirt, and debris caused by
<br />selective demolition operations. Return adjacent areas to condition existing before
<br />start of selective demolition.
<br />3.5. Selective Demolition
<br />3.5.1 Demolish and remove existing construction only to the extent required by new
<br />construction and as indicated. Use methods required to complete Work within
<br />limitations of governing regulations and as follows:
<br />3.5.1.1 Proceed with selective demolition systematically, from higher to lower
<br />level. Complete selective demolition work above each floor or tier before
<br />disturbing supporting members on lower levels.
<br />3-5.1.2 Nearly cut openings and holes plumb, square, and true to dimensions
<br />required. Use cutting methods least likely to damage construction to
<br />remain or adjoining construction, To minimize disturbance of adjacent
<br />surfaces, use hand or small power tools designed for sawing or grinding,
<br />not hammering and chopping. Temporarily cover openings to remain.
<br />3.5.1.3 Cut or drill from the exposed or finished side into concealed surfaces to
<br />avoid marring existing finished surfaces.
<br />3.5.1.4 Do not use cutting torches until work area is cleared of flammable
<br />materials. At concealed spaces, such as duct and pipe interiors, verify
<br />condition and contents of hidden space before starting flame -cutting
<br />operations. Maintain portable fire- suppression devices during
<br />flame -cutting operations.
<br />3.5.1.5 Maintain adequate ventilation when using cutting torches.
<br />3.5.1.6 Remove decayed, vermin -infested, or otherwise dangerous or unsuitable
<br />materials and promptly dispose of off -site.
<br />3.5.1.7 Remove structural framing members and lower to ground by method
<br />suitable to avoid free fall and to prevent ground impact or dust generation.
<br />' ).5. 1.8 Locate selective demolition equipment throughout the structure and
<br />remove debris and materials so as not to impose excessive loads on
<br />supporting walls, floors, or framing.
<br />3.5.1.9 Dispose of demolished items and materials promptly. On -site storage or
<br />sale of removed items is prohibited.
<br />3.5.1.10 Return elements of construction and surfaces to remain to condition
<br />existing before start of selective demolition operations.
<br />3.5.2 Demolish concrete and masonry in small sections. Cut concrete and masonry at
<br />junctures with construction to remain, using power -driven masonry saw or hand
<br />tools; do not use power -driven impact tools.
<br />3.5.3 Break up and remove concrete stabs on grade, unless otherwise shown to remain.
<br />3.5.4 Remove resilient floor coverings and adhesive according to recommendations of the
<br />Resilient Floor Covering Institute's (RFCI) "Recommended Work Practices for the
<br />Removal of Resilient Floor Coverings" and Addendum.
<br />3.5.4.1 Remove residual adhesive and prepare substrate for new floor coverings
<br />by one of the methods recommended by RFCI.
<br />3.5.5 Remove no more existing roofing than can be covered in one day by new roofing.
<br />See applicable Division 7 Section for new roofing requirements.
<br />3.5.6 Remove air-conditioning equipment without releasing refrigerants,
<br />3.6. Patching And Repairs
<br />3.6.1 Promptly patch and repair holes and damaged surfaces caused to adjacent
<br />construction by selective demolition operations.
<br />3.6.2 Patching is specified in Division I Section "Cutting and Patching."
<br />3.6.3 Where repairs to existing surfaces are required, patch to produce surfaces suitable
<br />for new materials.
<br />3.63� 1 Completely fill holes and depressions in existing masonry walls to remain
<br />with an approved masonry patching material, applied according to
<br />manufacturer's printed recommendations.
<br />3.6.4 Restore exposed finishes of patched areas and extend finish restoration into
<br />adjoining construction to remain in a manner that eliminates evidence of patching
<br />and refinishing.
<br />3.6.5 Patch and repair floor and wall surfaces in the new space where demolished walls or
<br />partitions extend one finished area into another. Provide a flush and even surface of
<br />uniform color and appearance.
<br />3.6.5.1 Closely match texture and finish of existing adjacent surface.
<br />3.6.5.2 Patch with durable seams that are as invisible as possible. Comply with
<br />specified tolerances.
<br />3.6.5.3 Where patching smooth painted surfaces, extend final paint coat over
<br />entire unbroken surface containing the patch after the surface has received
<br />primer and second coat.
<br />3.6.5.4 Remove existing floor and wall coverings and replace with new materials,
<br />if necessary, to achieve uniform color and appearance,
<br />3.6.5.5 Inspect and test patched areas to demonstrate integrity of the installation,
<br />where feasible.
<br />3.6.6 Patch, repair, or rehang existing ceilings as necessary to provide an even -plane
<br />surface of uniform appearance.
<br />3.7. Disposal of Demolished Materials
<br />3.7.1 General: Promptly dispose of demolished materials. Do not allow demolished
<br />materials to accumulate on -site.
<br />3.7.2 Burning: Do not burn demolished materials,
<br />3.7.3 Disposal� Transport demolished materials off Owner's property and legally dispose
<br />of them.
<br />3.8. Cleaning
<br />3.8.1 Sweep the building broom clean on completion of selective demolition operation.
<br />3.8.2 Change filters on air -handling equipment on completion of selective demolition
<br />operations.
<br />3.9. Selected Demolition Schedule
<br />3.9.1 Refer to specific demolition sheets and notes in the construction demolition
<br />package.
<br />End of Section 02070
<br />Section 02200
<br />Earth Work
<br />1. General
<br />1. 1. Field Density Tests and Samples
<br />1. I � I The Contractor shall employ a testing laboratory acceptable to the Architect for
<br />testing of footing and foundation excavations, for testing of other areas where the
<br />prepared pad is disturbed by the Work of this Contract, and for testing of the
<br />underslab porous fill where said porous fill is part of the Work of this Contract.
<br />1.1.2 Sample specimens shall be recovered by the "Shelby Tube" or the "Sand Cone"
<br />method, or as other -wise directed by Architect.
<br />1.1.3 Density Tests shall be secured at 50 ft. intervals in linear footing excavations, and at
<br />every spread footing.
<br />1.1.4 Density Tests shall be secured in areas of backf ill and recompaction at vertical
<br />intervals not exceeding 12 in. and at a horizontal frequency of one per 4000 sq. ft.
<br />Areas requiring compacted fill that support small independent slabs shall have
<br />density tests at vertical intervals of I 8" In the event this is a separate compaction
<br />procedure.
<br />1.1.5 Density Tests shall be secured in underslab porous fill at a horizontal frequency of
<br />one per 4000 sq. ft.
<br />1.1.6 Densities shall conform to 95% of the modified proctor valve and assumed bearing
<br />capacity = 2,500 psf.
<br />1.1 Testing and Remediation:
<br />1.2.1 Any test result which does not conform to the requirements of the Contract shall be
<br />furnished verbally to both Architect and Contractor within 24 hours after sampling.
<br />Written test results shall be distributed as specified in Section 01300 "Submittals",
<br />and shall include horizontal and vertical location, test number, dry density, moisture
<br />content, percent compaction and Proctor Compaction Curve to which each test is
<br />referenced. The Testing Laboratory shall also call attention, by a separate symbol, to
<br />those tests which do not conform with these Specifications.
<br />1.3. Termite Treatment: Refer to Section 02282.
<br />1.3.1 Guarantee of Treatment: Upon completion of the Soil Treatment and as a condition
<br />for its Final Acceptance, the Contractor shall furnish to the Owner a written
<br />Guarantee stating that the Applicator guarantees the effectiveness of the soil
<br />treatment against termite infestation for a period of not less than five years from
<br />date of treatment. Any evidence of re -infestation within the Guarantee Period will
<br />require treatment without cost to the Owner.
<br />2. Products
<br />Not Used
<br />I Execution
<br />3.1. Excavation
<br />3.1.1 Perform all excavation and cutting necessary to accommodate the work shown on
<br />the plan. Forms may be omitted if soil is suitable to provide accurate and stable
<br />trenches for concrete pours.
<br />3.1.2 Bottom of excavations shall be true and level to provide level bearing.
<br />3.1.3 Only concrete fill will be allowed under footings.
<br />3.1.4 Notify Publix' Representative should debris or deleterious materials be encountered
<br />during excavations. Publix will obtain a Soils Engineer's recommendation for
<br />remedial measures which will be part of the work of this Contract by appropriate
<br />Change Order if desired by Publix.
<br />3.1.5 Backfill under concrete floor slabs, walks, ramps, etc., where required by
<br />disturbance of the prepared pad shall be deposited in lifts not exceeding twelve (12)
<br />inches with each layer thoroughly compacted. Tamping and puddling shall be done
<br />at least 24 hours before concrete is laid. Recompaction shall reach the compaction
<br />specified in the separate Contract which covers Pad Preparation, or the compaction
<br />actually achieved for the prepared pad, whichever is greater.
<br />3.1.6 Additional requirements for excavation and backfilling for underground utilities
<br />may be found in other sections.
<br />3.2. Underslab Porous Fill
<br />3.2.1 Provide 4" of Porous fill. Fill shall be clean sand, gravel, or crushed rock. Porous
<br />fill under interior stabs shall be graded between 1 1/2 in. and no. 4 sieve. Porous fill
<br />under exterior slabs, ramps, walks, pads, etc. shall be graded between 1 1/2 in. and
<br />no. 200 sieve.
<br />End of Section 02200
<br />Section 02282
<br />Termite Control
<br />1. General
<br />1. 1. Summary
<br />1.2. This Section includes soil treatment for termite control. Treat on top of base under new
<br />slabs, and additionally along interior foundations, and around plumbing, and under
<br />sidewalks and all other new paved areas within five feet of the building.
<br />1.3. Submittals
<br />1.3.1 Generali Submit the following according to Conditions of Contract and Division I
<br />Specification Sections.
<br />1.3.2 Product data and application instructions.
<br />1.3.3 Certification that products used comply with U.S. Environmental Protection Agency
<br />(EPA) regulations for termiticides.
<br />1.4. Quality Assurance
<br />1.4.1 In addition to requirements of these specifications, comply with manufacturer's
<br />instructions and recommendations for preparing substrate and application.
<br />1.4.2 Engage a professional pest control operator who is licensed ac-.ording to regulations
<br />of governing authorities to apply soil treatment solution.
<br />1.4.3 Use only termiticides that bear a federal registration number of the EPA and are
<br />approved by local authorities having jurisdiction.
<br />1.5. Job Conditions
<br />1.5.1 Restrictions� Do not apply soil treatment solution until excavating, filling, and
<br />grading operations are completed, except as otherwise required in construction
<br />operations.
<br />1.5.2 To ensure penetration, do not apply soil treatment to excessively wet soils or during
<br />inclement weather. Comply with handling and application instructions of the soil
<br />toxicant manufacturer.
<br />1.6. Warranty
<br />1.6.1 Warranty� Furnish written warranty, executed by Applicator and Contractor,
<br />certifying that applied soil termiticide treatment will prevent infestation of
<br />subterranean termites. If subterranean termite activity is discovered during warranty
<br />period, Contractor will re -treat soil and repair or replace damage caused by termite
<br />infestation.
<br />1.6.2 Warranty Period: 5 years from date of Substantial Completion.
<br />1.6.3 The warranty shall not deprive the Owner of other rights the Owner may have under
<br />other provisions of the Contract Documents and will be in addition to and run
<br />concurrent with other warranties made by the Contractor under requirements of the
<br />Contract Documents.
<br />2. Products
<br />2.1. Soil Treatment Solution
<br />2.1.1 General: Use an emulsible, concentrated termiticide that dilutes with water,
<br />specially formulated to prevent termites infestation. Fuel oil will not be permitted
<br />as a diluent. Provide a solution consisting of one of following chemical elements.
<br />2.1.2 Products: Subject to compliance with requirements, provide one of the following:
<br />2.1.2.1 Chloropyrifos:
<br />Dursban TC, Dow Chemical Co.
<br />2.1.2.2 Permathrin:
<br />Dragnet FT, FMC Corp.
<br />Torpedo, ICI Americas, Inc.
<br />2.1.2.3 Cypermethrine�
<br />Prevail FT, FMC Corp.
<br />Demon, ICI Americas, Inc. 1
<br />2.1.2.4 Fenvaleratc:
<br />Gold Coast Tribute, Du Pont.
<br />2.1.2.5 Isofenphose:
<br />Pryfon, Mobay Corp.
<br />2.1.3 Dilute with water to concentration level recommended by manufacturer.
<br />2.1.4 Other solutions may be used as recommended by Applicator if approved for
<br />intended application by local authorities having jurisdiction. Use only soil treatment
<br />solutions that are not harmful to plants.
<br />3. Execution
<br />3.1. Application
<br />3. L I Surface Preparation: Remove foreign matter that could decrease treatment
<br />effectiveness on areas to be treated. Loosen, rake, and level soil to be treated,
<br />except previously compacted areas under slabs and foundations. Toxicants may be
<br />applied before placing compacted fill under slabs if recommended by toxicant
<br />manufacturer.
<br />3.1.2 Application Rates� Apply soil treatment solution as follows:
<br />3.1.1 1 Under slab -on -grade structures, treat soil before concrete slabs are placed,
<br />using the following application rates:
<br />3.1.2.1.1 Apply 4 gallons of chemical solution per 10 linear feet (5.1 L
<br />of chemical solution per meter) to soil in critical areas under
<br />slab, including entire inside perimeter of foundation walls,
<br />along both sides of interior partition walls, around plumbing
<br />pipes and electric conduit penetrating slab, and around
<br />interior column footings.
<br />3.1.2.1.2 Apply I gallon of chemical solution per I 0 sq. ft. (4.1 L of
<br />chemical solution per sq. in) as an overall treatment under
<br />slab and attached slab areas where fill is soil or unwashed
<br />gravel. Apply I- 1/2 gallon of chemical solution per 10 sq '
<br />ft. (6.1 L of chemical solution per sq. in) to areas where fill is
<br />washed gravel or other coarse absorbent material.
<br />3.1.2.1.3 Apply 4 gallons of chemical solution per 10 linear feet (5.1 L
<br />of chemical solution per meter) of trench for each 12 inches
<br />(300 min) of depth from grade to footing, along outside edge
<br />of building. Dig a trench 6 to 8 inches (I 50 to 200 mm) wide
<br />along outside of foundation to a depth of not less than 12
<br />inches (300 mm). Punch holes to top of footing at not more
<br />than 12 inches (300 min) o.c. and apply chemical solution.
<br />Mix chemical solution with the soil as it is being replaced in
<br />the trench.
<br />3.1.2.2 At hollow masonry foundations or grade beams, treat voids at rate of 2
<br />gallons per I 0 linear feet 2.6 L per meter, poured directly into the hollow
<br />spaces.
<br />3.1.2.3 At expansion joints, control joints, and areas where slabs will be
<br />penetrated, apply at rate of 4 gallons per I 0 linear feet (5.1 L per linear in)
<br />of penetration.
<br />3.1.3 Post signs in areas of application to warn workers that soil termiticide treatment has
<br />been applied. Remove signs after areas are covered by other construction.
<br />3.1.4 Reapply soil treatment solution to areas disturbed by subsequent excavation,
<br />landscape grading, or other construction activities following application.
<br />End of Section 02282
<br />Section 03300
<br />Cast in Place Concrete
<br />1. General I
<br />1. 1. Scope of Work
<br />1.1.1 Furnish all materials, labor, equipment and services necessary and incidental to
<br />complete installation of concrete work indicated, implied on contract drawings, or as
<br />specified.
<br />1.1-2 The Contractor shall cooperate with other trades regarding installation of imbedded
<br />items, and shall obtain inserts from related trades, such as plumbing, HVAC,
<br />roofing etc., and install under this section.
<br />1.1.3 Grout fill of hollow masonry units and hollow masonry pilasters is specified under
<br />masonry,
<br />1.2. References: the following specifications, codes and standards of current issue (hereafter
<br />referred to by acronym or alphainumeric designation only) form a part of this specification:
<br />1.2.1 American Concrete Institute
<br />1.2.1.1 ACI H 7: Standard Tolerances for Concrete Construction and Materials
<br />1.2.1.2 AC1211.1: Recommended Practice for Selecting Proportions for Normal
<br />Weight Concrete
<br />1.2.1.3 ACI 221: Guide for Use of Normal Weight Aggregates in Concrete
<br />1 1.2.1.4 ACI 301: Specification for Structural Concrete for Buildings
<br />1.2.1.5 ACI 301 Guide for Concrete Floor and Slab Construction
<br />1.2.1.6 ACI 305: Hot Weather Concreting
<br />1.2,1.7 ACI 306: Cold Weather Concreting
<br />1.2.1.8 ACI 315: Details and Detailing of Concrete Reinforcement
<br />1.2.1.9 ACI 3 1 8 Bldg. Code Requirements for Reinforced Concrete (see other
<br />paragraphs of this Section for exceptions)
<br />1.2.1.10 ACI 347: Recommended Practice for Concrete Form Work
<br />1.2.2 American Society for Testing and Materials
<br />1.2.2.1 ASTM A 185: Specification for Steel Welded Wire Fabric, Plain, for
<br />Concrete Reinforcement
<br />1.2.2.2 ASTM A 615: Specification for Deformed and Plain Billet -Steel Bars for
<br />Concrete Reinforcement
<br />1.2.2.3 ASTMC31: Making and Curing Concrete Test Specimens
<br />1.2.2.4 ASTM C 33: Specification for Concrete Aggregates
<br />1.2.2.5 ASTM C 39: Compressive Strength of Cylindrical Concrete Test
<br />Specimens
<br />1.2.2.6 ASTM C 143: Slump of Portland Cement Concrete
<br />1.2.2.7 ASTM C 150: Specification for Portland Cement
<br />1.2.2.8 ASTM C 260: Air -Entraining Admixtures for Concrete
<br />1.2.3 Concrete Reinforcing Steel Institute: Manual of Standard Practice
<br />1.2.4 Applicable Building Code
<br />1.3. Submittals
<br />1.3.1 Design Mixes:
<br />1.3.1.1 Submit written reports to Architect of each proposed mix for each class of
<br />concrete at least 15 days prior to the start of Work. Do not begin concrete
<br />production until proposed mix designs have been reviewed by Architect.
<br />1.3.1.2 Reports shall include material certifications and product data for all
<br />materials proposed for use.
<br />1.3.1.3 Separate mix designs shall be required for each admixture or combination
<br />of admixtures proposed for each class and strength of concrete reviewed
<br />by the Architect.
<br />1.3.1.4 Reports shall include wet and dry unit weights for each mix design.
<br />1.3.1.5 Each mix design shall indicate where the mix is to be placed and its
<br />intended use for the project.
<br />1.3.2 Shop Drawings� Submit in accordance with Section 01340 Submittals, prepared as
<br />described by ACI 315. Show complete plans, scaled sections, and elevations; clearly
<br />indicate all openings, ledges, haunches, construction joints required, and other
<br />pertinent items. Show size, mark, and location of all reinforcing steel, bar schedules,
<br />and bending schedules.
<br />1.3.3 Samples of materials shall be submitted if requested by the Architect.
<br />1.3.4 Product data for proprietary materials and items, including reinforcement and
<br />forming accessories, admixtures, patching compounds, waterstops, joint systems,
<br />curing compounds, dry -shake finish materials and others if requested by the
<br />Architect.
<br />1.3.5 Submit certificate from aggregate supplier, countersigned by concrete supplier
<br />verifying that all aggregates furnished for and used in concrete for this project
<br />conform to ASTM C 33.
<br />1.3.6 Certification of conformance to requirements, and the chloride ion content of the
<br />admixture will be required from the admixture manufacturer prior to mix design
<br />review by the Architect.
<br />1.4. Quality Assurance - Single -Source Responsibility For Concrete Materials� Obtain concrete
<br />ingredients of uniform quality, including color for exposed concrete, from one manufacturer
<br />for each cementitious component and from one source and producer for each aggregate.
<br />1.5. Field Quality Control
<br />1.5.1 Employ a Testing Laboratory experienced in testing of concrete materials to
<br />perform material evaluation tests and to submit test reports. Publix reserves the right
<br />to disallow any Testing Laboratory.
<br />1.5.2 Sampling Fresh Concrete: ASTM C 172, except modified for slump to comply
<br />with ASTM C 94.
<br />1.5.3 Slump: ASTM C 143; one test for each concrete load at point of discharge for all
<br />normally placed concrete, and point of placement for pumped concrete� and one for
<br />each set of compressive strength test specimens.
<br />1.5.4 Air Contents: ASTM C 173, Volumetric Method For Light Weight Concrete;
<br />ASTM C 231 Pressure Method For Normal Weight Concrete, one for every other
<br />concrete load at point of discharge, or when indicated.
<br />1.5�5 Concrete Temperature: Test hourly when air temperature is 4OF (4C) and below,
<br />and when 8OF (27C) and above; and each time a set of compressive strength
<br />specimens is made.
<br />1.5.6 Compressive Strength Specimen: ASTM C 31 ' one set of 4 standard cylinders for
<br />each compressive strength test, unless otherwise directed. mold and store cylinders
<br />for laboratory -cured test specimens except when field -cure test specimens are
<br />required.
<br />1.5.7 Compressive Strength Tests: ASTM C 39� one set for each 50 cubic yards or
<br />fraction thereof, of each mix design placed in any one day or for each 3,000 square
<br />feet of surface area placed; one specimen tested at seven days, one specimen tested
<br />at 14 days, one tested at 28 days, and one specimen retained in reserve for later
<br />testing if required.
<br />1.5.8 Test results shall be reported in writing to Publix Structural Engineer, Publix
<br />Construction Department, Ready Mix Producer, and Contractor within 24 hours.
<br />Reports of compressive strength test shall contain the project identification name
<br />and number, date of concrete placement, name of concrete testing service, concrete
<br />type and class, location of concrete batch in structure, design compressive strength
<br />at 28 days, concrete mix proportions and materials, wet and dry unit weight,
<br />compressive breaking strength, and type of break for both 7 day tests and 28 day
<br />tests. Also, if breaks produce results outside the limitations stated below, report
<br />shall be submitted on a red or other color paper that contrasts to the typical report
<br />paper color.
<br />1.5�9 Additional Tests: Coring of concrete anywhere in the structure shall be done only
<br />with written approval by Publix Architect.
<br />1.5.10 Publix acceptance of the test reports does not in any way relieve the Contractor of
<br />his responsibility to insure the strength, slump, and quality of the in -place concrete
<br />meets the requirements of the Contract Documents.
<br />1.6. Remediation:
<br />1.6.1 Seven (7) day concrete strength shall not be less than 75% of the 28 day strength.
<br />twenty eight (28) day strength shall be not less than I 00% of the 28 day design
<br />1� C,
<br />strength. The concrete strength will be determined by the method described in ACI
<br />318 Sections 5.6.1, 5.6.2.1, 5.6.2.2, and the corresponding ASTM Designation (C
<br />39).
<br />1.6.2 Where testing reveals defective materials, remove nonconforming concrete and
<br />install new concrete in its place.
<br />1.6.3 Perform additional tests required to verify compliance of replacement concrete.
<br />1.7. Pre -Slab Conference: At least one week prior to the beginning of the installation of slabs
<br />on grade, the Contractor shall hold a meeting with all affected Subcontractors or Suppliers
<br />and the Hardener Manufacturer, to review the detailed requirements for the floor methods
<br />and procedures, including concrete and reinforcing placement, joint layout, placing
<br />techniques, finishing techniques, admixture usage, and curing procedures.
<br />1.8. Inspections: Notify Pub I i x Super Market, In c.'s Representative 4 8 hours (min.) in advance
<br />of all pours so that he may
<br />1.8.1 Observe all reinforced concrete placement unless otherwise directed by the
<br />Architect.
<br />1.8.2 Check size, grade, spacing, and clearances of all reinforcing and,Mre mesh.
<br />1.8.3 Check lap lengths
<br />1.8.4 See that reinforcing is clean.
<br />1.8.5 See that forms are properly cleaned and oiled when required.
<br />1.8.6 See that steel has been properly placed and tied.
<br />1.8.7 See that forms for columns and beams are fully constructed, except that one (1) side
<br />of form is removed to allow for visual inspection.
<br />1.9. Delivery, Storage, And Handling: Reinforcing steel shall be delivered to the building site,
<br />stored, and covered in a manner which will insure that no damage from moisture, dirt,
<br />grease, or any other substance will impair bond with concrete.
<br />1.10. Existing Conditions:
<br />I � 10.1 Inspect and field verify all existing surfaces, structures, and dimensions in or
<br />adjacent to where Work is to be installed.
<br />1.10.2 Notify the Architect in writing, before any work is installed, of any condition in
<br />disagreement with the Contract Documents or otherwise requiring correction.
<br />Failure to make such a report will be construed as acceptance of the existing
<br />conditions and acceptance of the responsibility to provide a proper installation.
<br />2. Materials
<br />2. 1 � GeneraL All materials shall be delivered, stored and handled to prevent inclusion of foreign
<br />materials, damage by water, or breakage. materials shall be stored and delivered in original
<br />packages.
<br />2.1 Concrete Materials
<br />2.2.1 Aggregates
<br />2.2.1.1 Fine and coarse aggregates shall conform to the requirements of ASTM C
<br />33, ACI 221 and ACI 3301.
<br />2.2.1.2 Coarse aggregate for normally placed concrete at foundations, pedestals,
<br />floor slabs, stem walls, steps and other locations shall meet ASTM C 33
<br />Size No. 57 (1" to no. 4).
<br />2.2.1.3 Coarse aggregate for pump mix shall meet ASTM Size No. 8 (3/8" to no.
<br />8).
<br />2.2.1.4 All aggregate for this Project shall be from one source and of uniform
<br />color throughout.
<br />2.2.1.5 "Opaline Chert" shall not be used.
<br />2.2.1.6 Sand shall be capable of developing 90% of the strength of standard
<br />Ottawa sand, and shall not contain more than 3% clay. The size of the
<br />sand shall be such that not less than 85% shall pass through a 1/4" sieve,
<br />not more than 30% through a 50 mesh sieve, and not more than 5%
<br />through a 100 mesh sieve. Test reports shall be furnished with design
<br />mixes indicating strength and gradation.
<br />2.2.2 Cement
<br />2.2.2.1 Normal pordand cement shall be type I conforming to the requirements of
<br />ASTM C 150 and shall be used for all concrete work. All cement for this
<br />project shall be from one source and of uniform color throughout unless
<br />special colors or finishes are noted.
<br />2.2.2.2 Fly Ash shall not be used
<br />2.2.3 Water: Water for concrete shall be potable and free from injurious amounts of oil,
<br />alkali, organic matter and other deleterious materials.
<br />2.2.4 Reinforcement
<br />2.2.4.1 Bars: ASTM A 615, Grade 60, unless otherwise shown on Drawings,
<br />using deformed bars for no. 3 and larger.
<br />2.2.4.2 Reinforcement Accessories: High chairs, spacers, bolsters, etc. shall meet
<br />the requirements of CRSI.
<br />2.2.4.3 Welded Steel Wire Fabric Reinforcement: ASTM A 185
<br />2.2.5 Admixtures
<br />2.2.5.1 No admixtures shall be incorporated in concrete unless written
<br />authorization is received from publix' architect.
<br />2.2.5.2 Prohibited Admixtures: Calcium Chloride, Thiocyanates or admixtures
<br />containing more than 0.05% chloride ions are not permitted.
<br />2.2.5.3 Air Entraining Admixture: ASTM C 260, certified by Manufacturer to be
<br />compatible with other required admixtures.
<br />"Air-Tite" or "Pcrma-Ait", Euclid Chemical Co.
<br />"Darex AEA" or "Daravair", W.R. Grace & Co
<br />"MB-VR" "Micro -Air", Master Builders, Inc.
<br />"Airen S", Arr-Maz Products.
<br />2.2.5.4 Water Reducing Admixture: ASTM C 494, Type A
<br />"Eucon WR-75", Euclid Chemical Co.
<br />'WRDA7, W.R. Grace & Co.
<br />"Pozzolith Normal" or "Polyheed", Master Builders, Inc.
<br />"Reclux DP", Arr-Maz Products.
<br />2.3. Related Materials:
<br />2.3.1 Vapor Barrier
<br />2.3.1.1 Provide under -slab vapor barrier under all interior floorslabs.
<br />2.1 1.2 Moisture/Vapor Barrier: Water resistant membrane of kraft paper and
<br />glass reinforcing fibers combined under heat and pressure and coated both
<br />sides with extrusion applied inert, black polyethylene film, ASTM E 96,
<br />Procedure A, Perm Rating of 0. 10 maximum. Fed. Spec. UUB-7908, Type
<br />1, Grade A.
<br />"Moistop", Fortifiber Corp., Attleboro, MA., or approved equal.
<br />23.1.3 Tape for Sealing Laps:
<br />Grade 495 Pressure Sensitive Tape, or other Manufacturers approved
<br />equal.
<br />23.2 Emery -Aggregate Dry -Shake Hardener: B I ended and packaged, natural gray
<br />colored, dry shake hardener containing portland cement, aluminum oxide particles,
<br />and wetting agents or plasticizers. Acceptable manufacturers and products are:
<br />"Colorbrite Natural," Lambert Corp., Orlando, FL,
<br />"Emerchrome," L.M. Scofield Co., Douglasville, GA,
<br />2.3.3 Penetrating Curing Agent: Penetrating chemical curing compound compatible with
<br />chemical hardener. Acceptable manufacturers and products are:
<br />"Gardseal", Lambert Corp., Orlando, FL,
<br />"S6nosil" Sonneborn Corp.
<br />2.3.4 Chemical Hardener: Clear colorless concrete hardener, dustproofer, and densifier
<br />containing chemically active magnesium/zinc silicofluoride and wetting agents.
<br />Acceptable manufacturers and products are:
<br />"Solidus," Lambert Corp.
<br />"Lapidolith," Sonneborn Corp.
<br />"Pena-Lith," W.R. Meadows
<br />"Saniseal 100," Master Builders
<br />2.3.5 Absorptive Cover for Curing: Burlap cloth made from jute or kenaf weighing
<br />approx. 9 oz. per sq. yd. complying with AASHTO M 182, Class 2.
<br />2.4. Proportioning and Design of Mixes:
<br />2.4.1 Mix designs shall be proportioned in accordance with Section 5.3 of ACI 3 1 8,
<br />"Proportioning on the Basis of Field Experience and/or Trial Mixtures".
<br />2.4.2 If trial batches are used, the mix design shall be prepared by an independent testing
<br />laboratory, and shall achieve an average compressive strength 1200 psi higher than
<br />the specified strength. This over -design shall be increased to 1400 psi when concrete
<br />strengths over 5000 are used.
<br />2.4.3 Design mixes to provide normal weight concrete with the following properties, as
<br />indicated on the Drawings and Schedules.
<br />2.4.3.1 3000 psi 28-day compressive strength; W/C Ratio= 0.58 maximum (non-
<br />,
<br />air -entrained), 0.46 maximum (air -entrained). Provide minimum of 500
<br />lbs. portland cement per cubic yard of concrete.
<br />2.4.3.2 4000 psi 28-day compressive strength� W/C Ratio= 0.44 maximum (non -
<br />air -entrained).
<br />2.4.4 Proportion and design mixes to result in concrete slump at point of placement as
<br />follows:
<br />2.4.4.1 Walks, Ramps, Floor Slabs, Paving: Not more than 5 inches.
<br />2.4.4.2 Concrete Mixes Designed for Pump Placement: 5" (plus or minus I") inch
<br />at point of placement.
<br />2.4.4.3 Reinforced Foundation Systems: Not less than I inch and not more than 5
<br />inches.
<br />2.4.4,4 Slump may be adjusted as approved by Architect to allow for special
<br />project conditions.
<br />2.5. Concrete Mixing
<br />2.5.1 Transit -mixed concrete may be used. It shall be mixed and delivered in accordance
<br />with the requirements set forth in the Standard Specifications for Ready Mixed
<br />Concretes of the ACI 304, Latest Edition.
<br />2.5.2 Ready Mix Concrete: Comply with requirements of ASTM C 94, and as specified.
<br />2.5.2.1 When temperature is between 85f (30c) and 90f (32c), reduce mixing and
<br />delivery time from 90 minutes to 75 minutes, and when air temperature is
<br />above 90f (32c) reduce mixing and delivery time to 60 minutes.
<br />2.5.2.2 No concrete shall be placed when internal temperature of the concrete
<br />exceeds 90f
<br />2.5.3 Delete Reference From ASTM C 94 for adding water to batch for material with
<br />insufficient slump after it arrives on the site, No water shall be added to batch on the
<br />Job Site.
<br />2.6. Architect's review of the design mix does not relieve the Contractor of his responsibility to
<br />insure that the strength, slump, and quality of the in -place concrete meets the requirements
<br />of the Contract Documents.
<br />3. Part 3 - Execution
<br />3.1. Preparation
<br />3.1.1 Inspect Prepared Pad for suitability to receive concrete slab, Where areas may be
<br />deficient, perform tests to determine suitability for concrete placement. Where
<br />extensive testing may be required, notify Publix Architect.
<br />3.1,2 Where concrete is poured in exposed to view locations, examine formwork for
<br />suitability to produce smooth, even surfaces in finished work.
<br />3.1.3 Ensure that cavity caps are in place to prevent concrete from filling masonry cavities
<br />where pours are over masonry walls.
<br />3.2. Reinforcing
<br />3.2.1 Avoid cutting or puncturing vapor retarder during reinforcement placement and
<br />supports and as herein specified.
<br />3.2.2 Metal reinforcement, before being positioned, shall be thoroughly cleaned of all mill
<br />and rust scale, and of coatings of any character that will destroy or reduce the bond.
<br />3.2.3 All reinforcement shall be carefully bent to the required dimensions and in
<br />accordance with the requirements of CRSI.
<br />3.2.4 Shop form all reinforcing to dimensions required. conform to ACI I 1 7 for forming
<br />tolerances.
<br />3.2.5 All reinforcement shall be placed accurately in position using particular care to
<br />place the steel at its proper position in the cross section. Bars shall be held securely
<br />in place by ties and bracing in a way that will not allow displacement by tamping of
<br />the concrete. Slab reinforcing shall be supported on suitable reinforcing chairs or
<br />spacing bars.
<br />3.2.6 Laps:
<br />3.2.6.1 Conform To ACI 318.
<br />3.2.6.2 Avoid lapping bars wherever possible.
<br />3.2.6.3 Wire Mesh: Lap adjoining pieces at least one full mesh and lace splices
<br />with wire- Offset end laps in adjacent widths to prevent continuous laps in
<br />either direction.
<br />3.2.7 On exterior exposed work, no ties or spacers shall be permitted to remain within 3/
<br />4" of the finished surfaces. Place reinforcement to obtain at least minimum coverage
<br />for protection. Set wire ties so ends are directed into concrete, not toward surfaces.
<br />3.2.8 Holes for ties and spacers shall be patched with an approved polymer patching
<br />mortar immediately after stripping forms.
<br />3.2.9 Install welded wire fabric in longest practicable lengths.
<br />3.2.10 Unless otherwise specified or called for, provide the following minimum
<br />reinforcing:
<br />3.2.10.1 2 #3 bars continuous reinforcement for all stools, sills, or caps. Precast
<br />sills may be used.
<br />3.2.10.2 1 #3 bar in each concrete stair nosing (except metal pan stairs).
<br />3.2.103 6" x 6" W1.4 X WIA welded wire mesh in floor slabs, exterior slabs and
<br />walkways.
<br />3.2.10.4 3 #5 bars in wall footings,
<br />3.2.10.5 2 45 bars in tie beams or spandrels, and door and window lintels.
<br />3.3. Joints
<br />3.3.1 Construction Joints: Locate and install construction joints so they do not impair
<br />strength or appearance of the structure, as acceptable to Engineer. See Drawings for
<br />details.
<br />3. 3. 2 Provide keyways at least l- 1/2 inches deep in construction joints in walls and slabs
<br />and between walls and footings. Bulkheads designed and accepted for this purpose
<br />may be used for slabs. 1
<br />3.3.3 Place construction joints perpendicular to main reinforcement. Continue
<br />reinforcement across construction joints except as indicated otherwise. Donot
<br />continue reinforcement through sides of strip placements.
<br />3.3.4 Use bonding agent on existing concrete surfaces that will be jointed with fresh
<br />concrete.
<br />3.3.5 Expansion Joints� All expansion and isolation joints shall be carefully installed at
<br />the locations shown on the Contract Drawings. Care shall be taken to maintain true
<br />alignment, so as to permit the proper functioning of the joint, The concrete surfaces
<br />shall be thoroughly cleaned and dried before applying any adhesive material or
<br />expansion joint filler. In general, the joint shall be erected complete and shall form
<br />a watertight bulkhead in the wall or slab in which it is being built.
<br />3.3.6 Care shall be taken to maintain true alignment and accurate centering of all joints.
<br />Also, in removing the supporting forms, after the stop has been anchored in concrete
<br />previously poured, care shall be taken not to disturb the joint in any way.
<br />3.3.7 The Contractor shall support, brace and other -wise maintain in place all expansion
<br />joints. At all times, the method of support, construction and protection shall prevent
<br />damage to thejoint materials and concrete edges.
<br />3.3.8 Where a joint is of such length as to not permit its being handled in a single piece,
<br />0
<br />the Contractor will be required to furnish the stop in several pieces and to joint the
<br />same in the field in accord with manufacturer's recommendations. Also, at such
<br />points where a change in direction ofjoints occur, such as at the junction of walls
<br />with floors and the like, the Contractor will be required to install the correct fittings,
<br />in order to insure their being watertight.
<br />3.3.9 The expansion joint filler forjoints shall be of the dimensions outlined on the
<br />Contract Drawings and as required to completely fill thejoint, in such a manner as
<br />to be under compression after placing of the concrete. Small pieces of filler will be
<br />used only as permitted by the Engineer.
<br />3.3.10 Construction Joints� Locate and install construction joints at locations shown on the
<br />Drawings. Where construction joints are not shown, the Contractor may locate and
<br />install such joints so as not to impair strength and appearance of the structure, and
<br />submit for approval by the Engineer.
<br />3.3.11 Place construction joints perpendicular to the main reinforcement and continue
<br />reinforcement across construction joints, unless otherwise shown on the Drawings
<br />or specified herein.
<br />3.3.12 Provide roughened surface to 1/4" amplitude per ACI 318� or at Contractor option,
<br />provide 1-1/2" deep keyway with width equal to 1/3 thickness of part in
<br />construction joint or as shown on Drawings.
<br />3.3.13 Isolation Joints in Slabs -on -Grade: Construct isolation joints in slabs -on -grade at
<br />points of contact between slabs -on -grade and vertical surfaces, such as column
<br />pedestals, foundation walls, grade beams, and other locations, as indicated.
<br />3.3.13.1 Joint fillers and sealants are specified in Division 7 Section "Joint
<br />Sealants,"
<br />3.3.14 Control Joints in Slabs-on-Gra& Construct control joints in slabs -on -grade to form
<br />panels of patterns as shown. Use saw cuts 1/8 inch wide by one-fourth of slab depth
<br />or inserts 1/4 inch wide by one-fourth of slab depth, unless otherwise indicated.
<br />3.3.14.1 Form control joints by inserting premolded plastic, hardboard, or
<br />fiberboard strip into fresh concrete until top surface of strip is flush with
<br />slab surface. Tool slab edges round on each side of insert. After concrete
<br />has cured, remove inserts and clean groove of loose debris.
<br />3.3,14.2 Control joints in unexposed floor slabs may be formed by saw cuts as
<br />soon as possible after slab finishing as may be safely done without
<br />dislodging aggregate.
<br />3.3.14.3 If joint pattern is not shown, providejoints not exceeding 15 feet in either
<br />direction and located to conform to bay spacing wherever possible (at
<br />column centerfines, half bays, third bays).
<br />3.3.14.4 Joint fillers and sealants are specified in Division 7 Section "Joint
<br />Sealants."
<br />3.4. Forms
<br />3.4.1 Forms shall conform to the shapes, lines, and dimensions of the member as shown
<br />in the Drawings, and shall be substantial, mortar tight, free from surface defects, and
<br />properly braced and tied together, so as to maintain position and shape. All form-
<br />work shall be in accordance with ACI 347.
<br />3.4.2 Forms shall be closely fitted to produce smooth, clean surfaces without fins or
<br />offsets.
<br />3.4.3 Plywood shall be oiled or lacquered before reinforcing is placed. Oil shall be non-
<br />staining mineral oil.
<br />3.4.4 Column forms shall be secured with external yokes. Banding with steel tape is not
<br />permitted.
<br />3.4.5 Provide openings in concrete form -work to accommodate work of other trades.
<br />Determine size and location of openings, recesses, and chases from trades providing
<br />such items. Accurately place and securely support items built into forms.
<br />3.4.6 Thoroughly clean forms and adjacent surfaces to receive concrete. Remove chips,
<br />wood, sawdust, dirt or other debris just before concrete is placed. Re -tighten forms
<br />and bracing before concrete placement as required to eliminate mortar leaks and
<br />maintain proper alignment.
<br />3.5. Installation of Vapor Barrier:
<br />3.5.1 Lap joints min. 6 inches, seal with lap sealant tape.
<br />3.5.2 Coordinate installation of waterproofing materials and associated work to provide a
<br />complete system complying with combined recommendations of manufacturers and
<br />installers involved in the work. Schedule installation to minimize exposure of sheet
<br />waterproofing materials. Before pouring concrete, clean all puncture areas, and seal
<br />with joint tape.
<br />3.6. Installation of Embedded Items
<br />3.6.1 Set and build into work anchorage devices and other embedded items required for
<br />other work that is attached to, or supported by cast -in -place concrete. Use setting
<br />drawings, diagrams, instructions and directions provided by suppliers of items to be
<br />attached.
<br />3.7. Concrete Placement
<br />3.7.1 Comply with ACI 304 "Recommended Practice for Measuring, Mixing,
<br />Transporting, and Placing Concrete", and as herein specified.
<br />3.7.2 Cold Weather Placement:
<br />3.7.2.1 Comply with ACI 306. Unless otherwise approved, concrete shall be
<br />mixed and placed only when ambient temperature is at least 40 F.
<br />3.7.2.2 If less than 45 f, it shall be rising.
<br />3.7.2.3 Where schedules require placement at lower temperatures, heat all
<br />materials and otherwise prepare so that batching and mixing materials can
<br />proceed as specified.
<br />3.7.2.4 Cover completed work at footing level with sufficient temporary or
<br />permanent cover as required to protect footings and adjacent subgrade
<br />against possibility of freezing. Maintain cover for time period necessary
<br />for concrete to gain strength and to prevent frost heaving of soil.
<br />3.7.2.5 Provide means for maintaining concrete at a minimum of 50 F for 7 days
<br />after placement. Obtain Architect's approval for the methods proposed for
<br />heating materials and protecting concrete. All heaters shall be vented to
<br />the outside of the building.
<br />3.7.2.6 After 5 Days cooling of the concrete shall be no faster than I F per hour
<br />for the first day, and 2 F per hour thereafter.
<br />3.7.3 Hot Weather Placement-
<br />3.7.3.1 Comply with ACI 305 when mean daily temperatures are expected to
<br />exceed 80 F. Concrete shall be delivered to the forms at the coolest
<br />practicable temperature, Concrete mixes shall be specifically designed (or
<br />re -designed) for hot weather conditions.
<br />3.7.3.2 Concrete placement will not be permitted when, in the opinion of the
<br />Architect, sun, heat, wind, or humidity would prevent proper placement.
<br />3.7.3.3 During hot weather, all slabs shall be cured by continuous sprinkling for a
<br />minimum of 24 hours in addition to other required curing methods.
<br />3.7.3.4 Additional control joints may be required to control shrinkage cracking.
<br />3.7.3.5 Cool ingredients before mixing to maintain concrete temp. at time of
<br />placement below 90 F (32 C). Mixing water may be chilled, or chopped
<br />ice may be used to control temperature provided water equivalent of ice is
<br />calculated in total amount of mixing water. Use of liquid nitrogen to cool
<br />concrete is Contractor's option.
<br />3.7.3-6 Do not add water to concrete at Job Site.
<br />3.7.3.7 Cover reinforcing steel with water soaked burlap if it becomes too hot, so
<br />that steel temperature will not exceed the ambient air temperature
<br />immediately before concrete is placed.
<br />3.7.3.8 Fog spray forms, reinforcing steel, and subgrade just before concrete is
<br />placed.
<br />3.7.3.9 Use water reducing admixture when required by high temperatures, low
<br />humidity, or other adverse placing conditions, when acceptable to
<br />Architect.
<br />3.7.4 When concreting operations are inside enclosed space, space shall be adequately
<br />ventilated to prevent carbonation of surface of concrete. Ventilation shall be
<br />continuous until 24 hours after final pour in area.
<br />3.7.5 Deposit concrete continuously or in layers of such thickness that no concrete will be
<br />placed on concrete which has hardened sufficiently to cause the formation of seams
<br />or planes of weakness. If a section cannot be placed continuously, provide
<br />construction joints as herein specified. Deposit concrete to avoid segregation at its
<br />final location. deposit concrete as near as practicable to its final position. There shall
<br />be no free vertical drop greater than 8 feet.
<br />3
<br />3.7.6 Deposit concrete in forms in horizontal layers no deeper than 24 inches and in a
<br />manner to avoid inclined construction joints. Where placement consists of several
<br />layers, place each layer while preceding layer is still plastic, to avoid cold joints.
<br />3.7.6.1 Consolidate placed concrete by mechanical vibrating equipment
<br />supplemented by hand -spading, rodding or tamping. Use equipment and
<br />procedures for consolidation of concrete in accordance with ACI 309.
<br />3.7.6.2 Do not use vibrators to transport concrete inside forms.
<br />3.7.6.3 Insert and withdraw vibrators vertically at uniformly spaced locations not
<br />farther than visible effectiveness of machine. Place vibrators to rapidly
<br />penetrate placed layer and at least 6 inches into preceding layer. Do not
<br />insert vibrators into lower layers of concrete that have begun to set. At
<br />each insertion, limit duration of vibration time necessary to consolidate
<br />concrete and complete embedment of reinforcement and other embedded
<br />items without causing segregation of mix. �
<br />3.7.7 Deposit and consolidate concrete slabs in a continuous operation, within limits of
<br />constructionjoints, until the placing of a panel or section is completed.
<br />3.7.7.1 Consolidate concrete during placing operations so that concrete is
<br />thoroughly worked around reinforcement and other imbedded items and
<br />into corners.
<br />3.7.7.2 Bring slab surfaces to correct level with straightedge and strike off Use
<br />bull floats or darbies to smooth surface, free of humps or hollows. Do not
<br />disturb slab surfaces prior to beginning finishing operations.
<br />3.7.7.3 Maintain reinforcing in proper position during concrete placement
<br />operations.
<br />3.8. Tolerances and Alignment, General:
<br />3.8.1 Conform to ACI 117 "Standard Specifications for Tolerances for Concrete
<br />Construction and Materials."
<br />3.8.2 For all formed concrete work exposed to view, provide form and finish tolerances to
<br />ACI Class A requirements.
<br />3.8.3 Floor finish tolerances as measured by placing a freestanding (unleveled) 10'
<br />straightedge anywhere on the slab and allowing it to rest upon two high spots within
<br />72 hours after slab concrete placement. The gap at any point between the
<br />straightedge and the floor (and between the high spots) shall not exceed 3/16" (flat
<br />tolerance) but no more than 1/4" in any 20' length unless tighter tolerance is
<br />required below.
<br />3.8.4 Variation of the linear building lines from established position in plan and related
<br />position of columns, walls and partitions:
<br />In any bay 1/4"
<br />In any 20' length 114"
<br />Maximum for entire I ength 3/8"
<br />3.8.5 Variation in the sizes and location of sleeves, floor openings, and wall openings:
<br />1/4"
<br />3.8.6 Variation in the thickness of slabs: 1/4"
<br />3.8.7 Variations in footings:
<br />In plan ill
<br />Eccentric misplacement 2% of width
<br />Thickness
<br />but <2"
<br />5% of depth
<br />but <2"
<br />3.8.8 Variations in steps:
<br />Flight Rise 1/4"
<br />Run 1/2"
<br />Adjacent steps Rise 1/8"
<br />Run 1/4"
<br />3.9. Interior Trowel -Finished Slabs: All interior floor slabs except those which will be depressed
<br />to receive Terrazzo or Hard Tile.
<br />3.9.1 Emery -Aggregate Dry -Shake Hardener: Follow manufacturer's instructions.
<br />3.9,1.1 Two applications to slab surfaces at a combined rate of 70 lbs. per I 00 s.f.
<br />Acceptable bond and density is achieved through absorption of water from
<br />fresh underlying concrete.
<br />3.9. 1 �2 After bleed water of first floating operation has dissipated from surface of
<br />concrete, uniformly distribute approximately two-thirds of the required
<br />weight of the Dry -Shake material over the concrete surface. Embed by
<br />mechanical floating or by hand floating. Do not trowel first application.
<br />3.9.1.3 Before bleed water dissipates entirely, uniformly apply most of the
<br />remaining Dry -Shake material over the concrete surface, using
<br />overlapping applications as required to achieve uniform color. Embed by
<br />floating and troweling. Minimize hard troweling to avoid burnishing the
<br />slab. Retain a small quantity of dry -shake material for touch-up work.
<br />3.9.2 Steel trowel slabs to a smooth, hard, dense, non -porous surface which is level within
<br />a tolerance as described above. Trowel slab down smooth with the tops of floor
<br />drains and even with clean -outs. Trowel slab down 1/8 inch below floor drains
<br />where vinyl tile occurs.
<br />3.10. Concrete Curing and Protection
<br />3.10.1 General: Protect freshly placed concrete from premature drying and excessive cold
<br />or hot temperatures. In hot, dry, and windy weather, protect concrete from rapid
<br />moisture loss before and during finishing operations with an evaporation -control
<br />material. Apply in accordance with manufacturer's instructions after screeding and
<br />bull floating, but before power floating and troweling.
<br />3.10.2 Start initial curing as soon as free water has disappeared from concrete surface after
<br />placing and finishing- Weather permitting, keep continuously moist for not less
<br />than 7 days.
<br />3.1 1. Curing Methods� Curing method may vary with construction sequence adopted by
<br />Contractor. Perform curing of concrete by curing and sealing compound, by moist curing,
<br />by moisture -retaining cover curing, and by combinations thereof, as herein specified.
<br />3.11.1 Provide moisture curing by following methods.
<br />3.11.1.1 If the slab area is not completely shielded from direct sunlight by roof
<br />deck and walls, the slab shall be moisture -cured (see moisture curing
<br />procedures).
<br />3,11.1.2 If the slab area is completely shielded from direct sunlight by roof deck
<br />and walls, the slab may be cured by moisture -curing (see moisture -curing
<br />procedures) or by application of penetrating curing agent (see penetrating
<br />curing agent).
<br />3.11.1.3 Do not use membrane -forming curing compound.
<br />3.12. Perform curing of concrete by curing and sealing compound, by moist curing, by moisture -
<br />retaining cover curing, and by combinations thereof, as herein specified. Provide moisture
<br />curing by following methods.
<br />3.12.1 Keep concrete surface continuously wet by covering with water.
<br />3.12.2 Use continuous water -fog spray.
<br />3,12.3 Cover concrete surface with absorptive cover, thoroughly saturate cover with water ,
<br />and keep continuously wet. Place absorptive cover to provide coverage of concrete
<br />surfaces and edges, with 4-inch lap over adjacent absorptive covers.
<br />3.12.4 Provide curing and sealing compound to exposed interior slabs and to exterior slabs,
<br />walks, and curbs as follovvs�
<br />3.12.4.1 Apply specified curing and sealing compound to concrete slabs as soon as
<br />final finishing operations are complete (within 2 hours and after surface
<br />water sheen has disappeared). Apply uniformly in continuous operation
<br />by power spray or roller in accordance with manufacturer's directions.
<br />Recoat areas subjected to heavy rainfall within 3 hours after initial
<br />application. Maintain continuity of coating and repair damage during
<br />curing period.
<br />Sverdrup
<br />S VERDR UP FACILITIES, INC
<br />FLORIDA CORPORATE LICENSE #AA C001291
<br />5750 Major Boulevard, Suite 500, Orlando, FL 32819
<br />(407)903-5001 Fax (407)903-5150
<br />ARCHITECT OF RECORD
<br />NAME: FLOYD WILSON McCOLLUM, JR., AIA
<br />REGISTRATION: FLORIDA REG. #AR0016162
<br />DA TE: 020101
<br />Revision:
<br />Date: By: Description:
<br />PIC-t
<br />e,�J
<br />4
<br />0
<br />V .L<
<br />,
<br />,
<br />-
<br />n
<br />I
<br />::)
<br />C 0-
<br />6� M
<br />011-
<br />CA
<br />W&U10
<br />a)
<br />%�
<br />a
<br />r-'d
<br />�
<br />9
<br />%�
<br />a)
<br />4=
<br />I,*-
<br />M
<br />0=
<br />qqr
<br />VL
<br />'IT
<br />D
<br />L0
<br />V)
<br />CN
<br />(Z)
<br />00
<br />M
<br />M
<br />-CY)
<br />[___Cy-)00
<br />a- 00
<br />0<
<br />W
<br />0
<br />-
<br />__J"V_
<br />_LL1 .r__
<br />r..) LL ,
<br />-
<br />LU
<br />W
<br /><
<br />>
<br />W
<br />XCo
<br />Lij ,00
<br />c):E000
<br />C.0
<br /><
<br />LU
<br />0
<br />_j
<br />0�
<br />�
<br />- 2:
<br />LL (D <;Z-
<br />LL -
<br />=:)
<br />Cy
<br />_J
<br />=3
<br />LL.
<br />-
<br />C0_J1:1_
<br />0 W UJ dr)
<br />LLJM,�
<br />C',
<br />U)
<br />?::
<br />0
<br />M
<br />CO
<br />_J
<br /><Ui
<br />I< c/) 12:
<br />a)
<br />cn
<br />4t
<br />LU
<br />-
<br />_J
<br />_J
<br />Zi
<br />x:
<br />LIJ r'_�o
<br />>
<br /><
<br />W
<br />D0�
<br />(--) �- c::):]E:
<br />0- 0-
<br />LU
<br />W
<br />Z
<br />(!)
<br />>-
<br />X:
<br />a=
<br />-:i
<br />0�(_)X-:J
<br />O<OLU
<br />0
<br />�-
<br />�,
<br />.
<br />0
<br />C)
<br />C-4
<br />ce)
<br />(L
<br />LU
<br />ULLcm
<br />U)
<br />�-
<br />P-_
<br />N
<br />Key Plan:
<br />Scales:
<br />Sverdrup Project No.: 22196390
<br />Drawing Title:
<br />SPECIFICATIONS
<br />Date: 03/12/99
<br />Designed BY: RBJ
<br />Drawn BT RM
<br />Drawing No.:
<br />PM2
<br />
|