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Specification No . : RGS0024-87 <br /> Part II - SPECIFIC CONDITIONS <br /> Section 11 - Concrete Work <br /> 11 . 13 Quality Control Testing During Construction : P . G. & E . <br /> will employ a testing laboratory to perform other tests <br /> and to submit test reports . Sampling and testing for <br /> quality control during placement of concrete may include <br /> the following , as directed by Engineer . <br /> 11 . 13 . 1 Compression Test Specimen : ASTM C 31 ; one set of b <br /> standard cylinders for each compressive strength test , <br /> unless otherwise directed . Mold and store cylinders for <br /> laboratory cured test specimens . <br /> 11 . 13 . 2 Compressive Strength Tests : ASTM C 39 one set for each <br /> 100 cu . yds , or fraction thereof , of each concrete class <br /> placed in any one day or for each 5 , 000 sq . ft . of <br /> surface area placed in any one day , evaluation and <br /> acceptance of concrete shall be in accordance with <br /> California Administration Code , Section T22-94305( d ) . <br /> The following shall conform to the California <br /> Administrative Code , Title 22 , Division 7 : <br /> Cement Tests - Section 94114( a) <br /> Reinforcing bat tests - Section 94114(b ) <br /> Inspection of welded reinforcing bars - <br /> Section 94114( 1 ) <br /> Batch Plant Inspection - Section 94114 <br /> ( d) & (c ) <br /> END OF SECTION <br /> XI-7 <br />