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i <br /> C. The concrete supplier shall submit certificates tha� the i <br /> materials used meet applicable ASTM Specifications . Mix <br /> designs not conforming to the above will be rejected. � <br /> Payment for the concrete mix design will be by the <br /> supplier. <br /> 1 . 0 6 SLLTMP � <br /> A. Design concrete with a slump of five inches maximum. <br /> B. If a slump greater than 5 " is desired it shall be achieved , <br /> with a high range water reducer. Design the concrete mix <br /> with a high range water reducer slump of two and one-half <br /> inches plus or minus one and one-half inches . The maximum � <br /> slump after high range water reducers are added shall be <br /> eight inches . <br /> 1 . 07 FRESH UNIT WEIGHT � , <br /> A. Provide normal weight concrete with a fresh unit weight of � <br /> 140 to 152 pcf . <br /> 1 . 08 AIR CONTENT <br /> A. No air content is required in concrete placed below the , <br /> design frost line. <br /> B. Provide air content of five percent plus or minus one and � <br /> one-half percent for normal weight concrete with required <br /> compressive strength less than 5000 psi . � <br /> C. Provide air content of three percent plus or minus on� and <br /> one-half percent for normal weight concrete with required <br /> compressive strength equal to or greater than 5000 psi . � <br /> PART 2 PRODUCTS � <br />, 2 . 01 MATERIALS <br /> , <br /> A. Materials designated by specific manufacturer s trade ' <br /> names are approved, subject to compliance with the quality <br />, and performance indicated by the manufacturer. <br /> Instructions and specifications, published by the <br />� manufacturer of such materials are included in and are a � <br /> part of these specifications . Upon request, provide a <br /> certificate from manufacturer or supplier that materials � <br /> designated by reference to ASTM and ACI standards meet the <br /> requirements of these agencies of latest edition. �� <br /> 2 . 02 CONCRETE STRENGTH � <br /> A. Provide concrete strengths indicated on the drawings . <br /> � <br /> November 25 , 1998 03300-4 98088 . 00 � <br />