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t <br />1 <br />G. Consistency of the concrete as measured by the ASTM Designation C143 <br />shall be as shown in Table B. <br />TABLE B <br />Portion of Structure <br />Slump (inches) <br />Max.* Min. <br />Pavement and slabs on ground 3 2 <br />Plain footings, gravity walls, <br />slabs and beams 3 2 <br />Heavy reinforced foundation <br />walls and footings 4 2 <br />Thin reinforced walls and columns 4 2 <br />* May be increased 1 -inch if proper method of consolidation is used. <br />H. Concrete shall be of such consistency and mix composition that it can be <br />readily worked into the corners and angles of the forms and around the <br />reinforcement, inserts, and wall castings without permitting materials to <br />segregate or free water to collect on the surface, due consideration being <br />given to the methods of placing and compacting. <br />No excessively wet concrete will be permitted, and if at any time concrete <br />of such consistency beyond the limits of Table B is delivered to the job, <br />the Engineer may direct the Contractor to reject same or to add extra <br />cement for which no additional payment will be made. A supply of the <br />approved cement shall be kept available at the site for this purpose. No <br />additional water shall be added by drivers of transit -mix trucks except that <br />established for the design. Failure to comply with this requirement shall <br />be justification for rejecting the concrete. <br />J. The entrained air, as measured by the Pressure Method, ASTM C231, shall <br />be as shown in Table C. <br />December 2006 <br />TABLE C <br />Nominal Maximum Size <br />of Coarse Aggregate(in) <br />211 <br />ill <br />3/4" <br />03300 -4 <br />Total Air Measured at <br />Discharae from truck (% <br />2.5-5.5 <br />6.5 <br />4.0-8.0 <br />06 -5723 <br />