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C. Mix mortar in the laboratory from representative samples of materials to be used in the Work, including selected <br /> colorants. Average compressive strength at 28 days shall be as follows: <br /> Mortar Type Compressive Strength Range <br /> M 2,500 psi-3,000 psi <br /> S 1,800 psi-2,200 psi <br /> ' N 750 psi-1,100 psi <br /> D. Adjust mix design so as to achieve compatibility with brick to be supplied, considering initial rate of absorption of <br /> brick and water re-tentative of mortar. <br /> E. Do not start masonry work until Architect has reviewed test reports and accepted mix design. <br /> F. Prepare and test new mix designs if mortar does not meet specifications or if, during the course of the Work, <br /> significant changes occur in aggregate or other materials. <br /> PART 3: EXECUTION <br /> 3.01 APPLICATION <br /> A. See Section 04200 for installation of mortar. <br /> 3.02 FIELD QUALITY CONTROL <br /> A. The Owner will employ a testing agency to perform the following: <br /> 1. Field test mortar for consistency and water content in accordance with ASTM C780. Make one test for each <br /> 2,500 square feet of wall area. <br /> ' 2. Test brick prisms constructed under Section 04200 for flexural bond strength in accordance with ASTM <br /> C1072. Make one test for each mortarlbrick combination. <br /> 3. Provide test results to Architect for comparison with laboratory results. <br /> END OF SECTION 04100 <br /> ' 04100-3 No.99132-CP2 <br />