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' <br /> 2A2 CONCRETE MASONRY LJNITS: <br /> ' General: Comply with referenced standards and other requirements indicated below applicable to <br /> each form of concrete masonry unit requued. � <br /> tProvide �ecial shanes where required for lintels,corners,jambs, sash,control joints, <br /> headers, bonding and other special conditions. <br /> 1 Concrete Block: Provide units complying with chazacteristics indicated below for Grade,Type, <br /> face size,exposed face and,under each form of block included,for weight classification. <br /> � S�l`I <br /> ��;. Manufacturer's standazd units with nominal face dimensions of 16" long x 8" high <br /> (15-5/8" x 7-5/8" actual)x thicknesses indicated. <br /> ' Type I,moisture-controlled units. <br /> Cure units by autoclave treatment at a minimum temperature of 350°F(176C) and a <br /> minimum pressure of 125 psi. <br /> ' 2.03 MORT�R AND GROUT MATE TAI S� <br /> ' Hydrated Line: ASTM C 207,Type S. <br /> A��te for Mortaz: ASTM C 144,except for joints less than 1/4" use aggregate graded with <br /> ' 1009'o passing the No. 16 sieve. <br /> 2 04 MISCE .i.Atv�?OUS 1VLASONRY AGCFSSO T S� <br /> ' Reinforcin�Bars: Deformed steel,ASTM A 615,Grade 60 for bars No. 3 to No. 18. <br /> Non-Meta�lic Ex�ansion Join±Strm� Premolded,flexible cellular neoprene rubber filler strips <br /> � complying with ASTM D 1056,Grade RE41E1,capable of compression up to 359b of width and <br /> thickness indicated. <br /> Premolded Control Joint Strin� Material as indicated below,designed to fit standard sash block <br /> , and to maintain lateral stability in masonry.wall; siu and configuration as indicated. <br /> Ethafoam Polyethylene foam,Dow Chemical <br /> , Bond Breaker Striv� Asphalt-saturated organic roofing felt complying with ASTM C 226,Type I <br /> (No. 15 asphalt felt). <br /> ' �.OS MORT.�R,�ND GROUT MLXFS� <br /> Generat: Do not add admiatures including coloring pigments, airentraining agents,accelerators, <br /> ' retaders,water repellent agents, anti-freeze compounds or other admixtunes,unless otherwise <br /> indicated. <br /> ' Do not use calcium chloride in mortaz or grout. <br /> ��;. Combine and thoroughly mix cementitious,water and aggregates in a mechanical batch <br /> Imixer; comply with referenced ASTM standards for mi.xing time and water content. <br /> Mortaz for Unit Masonrv• Comply with ASTM C 270,Proportion Specification,for types of <br /> mortar required,unless otherwise indicated. <br /> ' <br /> SECTION 04200-iJNIT MASONRY <br /> , PAGE 3 OF 6 <br />