Laserfiche WebLink
<br />3.5 Section 600 -Miscellaneous Construction <br />2 3.5.1 Section 601- Structural Concrete <br />3 601.01 Description. This work consists of furnishing and placing portlar~d cement concrete in <br />4 accordance with these specifications and in conformity with the lines, grades and dimensions as <br />5 shown on the plans or established. <br />6 <br />7 This work includes preparing concrete surfaces designated in the Contract and applying an <br />8 approved colored Structural Concrete Coating to them. <br />9 <br />]0 601.02 Classification. The classes of concrete shown in Table 601-1 shall be used when <br />11 specified in the Contract. <br />12 <br />Table 601-1 <br />Cnnrretr Table <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br /> <br />Concrete <br />Class <br />Required Field <br />Compressive Strength <br />Cement Content: <br />Minimum or Range Air Content: <br /> <br />percent Range <br />(Total) Water Cement <br />Ratio: <br />Maximum or <br />Ran e <br />B 3000 si at 28 da s 565 lbs./cu. -d. 5-8 N/A <br />BZ 4000 si at 28 da s 610 lbs./cu. d. N/A N/A <br />D 4500 si at 28 da s 615-660 lbs./cu. d. 5-8 0.44 <br />DT 4500 si at 28 da s 700 lbs./cu. d. 5-8 0.44 <br />E 4200 si at 28 da s 660 lbs./cu. d. 4-8 0.44 <br />H 4500 si at S6 da s 580-640 lbs./cu. d. 5-8 0.38-0.42 <br />HT 4500 si at 56 da s 580-640 lbs./cu. d. 5-8 0.38-0.42 <br />P 4200 si at 28 da s 660 lbs./cu. d. 4-8 0.44 <br />S35 5000 si at 28 da s 6! 5-720 lbs./cu. d. 5-8 0.42 <br />S40 5800 si at 28 da s 615-760 lbs./cu. d. 5-8 0.40 <br />S50 7250 si at 28 da s 615-800 lbs./cu. d. 5-8 0.38 <br />Class B concrete is an air entrained concrete for general use. Class D of H concrete may be <br />substituted for Class B concrete. Additional requirements for Class B concrete are: Class B <br />concrete shall have a nominal coarse aggregate size of 37.5 mm (1%z inches) or smaller. <br />Approved fly ash may be substituted for portland cement up to a maximums of 20 percent Class C <br />or 30 percent Class F by weight. <br />Class BZ concrete is concrete for drilled piers. Additional requirements for class BZ concrete <br />aze: Entrained air is not required unless specified in the Contract. High range water reducers may <br />be added at the job site to obtain desired slump and retardation. Slump shall be a miniruum of 5 <br />inches and a maximum of 8 inches). <br />Class BZ caisson concrete shall be made with 19.0 mm ('/< inch) nominal sized coarse aggregate. <br />Approved fly ash may be substituted for portlavd cement up to a maximurri of 20 percent Class C <br />or 30 percent Class F by weight. <br />3-30 <br />G U01100100021Nftepgts\NP\Terhnical Specifim~ions.0oc FeMUry 3, 2006 <br /> <br />LJ <br />LJ <br /> <br /> <br />LJ <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />