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t C . Reinforcing : <br /> Welded Wire Mesh plain cold-drawn steel wire fabric, ASTM A 185 , or Fibermesh <br /> admixture . <br /> ' D . Concrete Materials : <br /> Comply with requirements of applicable Division 3 Sections for concrete materials , <br /> ' admixtures , bonding materials , curing materials, and others as required . <br /> 2 . 02 CONCRETE MIX. DESIGN AND TESTING <br /> ' A. Design mix to produce standard-weight concrete consisting of portland cement, <br /> 3 /4 " aggregate, air-entrained admixture and water to produce the following <br /> properties : <br /> 1 . Compressive Strength : 3000 psi minimum at 28 days . <br /> 2 . Slump Range :e : 2 " to 411 <br /> . <br /> ' 3 . Air Content : 5 % to 8 % . <br /> 4 . Water reducing or other supplemental admixtures will not be allowed. <br /> 5 . Pea rock pump-mix will not be allowed for any slabs on grade . <br /> ' PART 3 - EXECUTION <br /> 3 . 01 SURFACE PREPARATION <br /> A . Remove loose material from compacted subbase surface immediately before <br /> placing concrete . <br /> Be Proof-roll prepared subbase surface to check for unstable areas and need for <br /> ' additional compaction. Do not begin paving work until such conditions have been <br /> corrected and are ready to receive concrete . <br /> C . Set forms to required grades and lines, rigidly braced and secured. Install sufficient <br /> quantity of forms to allow continuous progress of work and so that forms can <br /> remain in place at least 24 hours after concrete placement. <br /> D . Check completed form work for grade and alignment to following tolerances : <br /> 1 . Top of forms not more than 1 /8 " in 10 ' . <br /> 2 . Vertical face on longitudinal axis , not more than 1 /4 " in 10' . <br /> 3 . Clean forms after each use , and coat with form release agent as often as <br /> required to ensure separation from concrete without damage . <br /> ' 02515 -2 <br />