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durable, high strength solid grout. Injection of the grout material reyuires drilling 5/8-inch <br /> diameter holes through the concrete flatwork or around the outside perimeter of the building on 4 <br /> to 6 foot centers, installing grout pipes, and injecting the grout under controlled pressure to fill <br /> voids, densify loose materials, and re-level slabs and foundation elements as deemed necessary <br /> by the engineer. The chemical grouting shall be done after the compaction grouting is completed <br /> and should follow the specifications provided in Appendix E. BCI can provide a detailed design <br /> layout and qualified foundation repair contractor prior to implementing the program, if <br /> requested. <br /> In order to allow time for re-distribution and equilibration of stresses induced by the grouting <br /> programs, we recommend that final cosmetic repairs of cracking and other damage to the <br /> building not be undertaken for a period of two months following grouting. <br /> 4.3 Project Costs <br /> A cost estimate for the proposed grouting program is presented below in Table 2. As shown, <br /> project costs are estimated at $ 116,695. It should be noted that these costs are estimated based <br /> on our experience with similar projects in the central Florida area. Costs for any needed <br /> structural ar cosmetic repairs to the building are not included in this estimate. Actual, final <br /> project costs for the grouting may be lower (or possibly higher) after the project is subject to <br /> final design, competitive contractor bidding, and any modifications during implementation. <br /> Table 2 <br /> Estimated Project Costs <br /> Subsurface Compaction and Chemical Grouting <br /> Orange Blossom Ranch Association Incorporated <br /> Subsurface Compaction and Chemical Grouting Quantity Units Unit Cost Cost <br /> a.Contractor Mobilization 1 each $2,000 $2,000 <br /> b.Installation of grout casings 1,750 feet $16 $28,000 <br /> a Compaction grout material(estimated) 350 cubic yds. $160 $56,000 <br /> d.Chemical Grouting(includes 500 lbs.of material) 1 day $7,000 $7,000 <br /> e.Additional chemical grout material 1,100 lbs $13 $14,300 <br /> Subtotal= $107,300 <br /> Engineering Supervision <br /> Inspection&oversight estimated cost $9,395 <br /> TOTAL ESTIMATED PROJECT COSTS= $116,695 <br /> In order to ensure compliance with the finding of this study and project specifications, we <br /> recommend that BCI be retained to evaluate the contractor bids and provide project monitoring <br /> and oversight services during the grouting and operations. <br /> S��i;�;c��.;�;U li�ze:sli�,<�Tic;,-r BCi P2�ciect ]`.�o. 0�- 1861� <br /> ��G.Iiz?�'. �!£)SSC)ti! �.'dilC3� f`�;Q;:it!(?Z�tl 'fi'Cfi?'€1i)12.if'CI ��Ji'I� ��i�Q <br /> ��<s.;'s'i �`Is;. ��'.>J,..�;4�, ���SLTf—. 1 � <br />