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Liberty Tower Exterior Renovations - Ph 2 © Copyright, Kil Architecture / Planning <br />South Bend, Indiana September 2020 <br />H. Pigments for Colored Mortar: Pure, concentrated mineral pigments specifically intended for <br />mixing into mortar and complying with ASTM C979/C979M. <br />L Water: Clean and potable. <br />2.3 MORTAR MIXING <br />A. Thoroughly mix mortar ingredients using mechanical batch mixer, in accordance with ASTM <br />C270 and in quantities needed for immediate use. <br />B. Maintain sand uniformly damp immediately before the mixing process. <br />C. Do not use anti -freeze compounds to lower the freezing point of mortar. <br />D. If water is lost by evaporation, re -temper only within two hours of mixing. <br />PART 3 EXECUTION <br />3.1 INSTALLATION <br />A. Install mortar to requirements of section(s) in which masonry is specified. <br />END OF SECTION <br />MORTAR AND MASONRY 040511 - 3 <br />GROUT <br />