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<br />Copyright 2003 AIA <br /> <br />MASTERSPEC - SHORT FORM <br /> <br />05/03 <br /> <br />B. Do not place lightweight insulating concrete during rain or snow or on surfaces covered with <br />standing water, snow, or ice. <br /> <br />PART 2 - PRODUCTS <br /> <br />2.1 <br />A. <br />B. <br />C. <br />D. <br />E. <br />F. <br />G. <br /> <br />MATERIALS <br /> <br />Cementitious Material: Portland cement, ASTM C 150, Type [I] [II] [I/II] [III].[ Supplement <br />with fly ash, ASTM C (tI8, Class C or F.] <br /> <br />Mineral Aggregate: ASTM C 332, Group I, [vermiculite] [perlite]. <br /> <br />Foaming Agent: ASTM C 869. <br /> <br />Water: Clean, potable. <br /> <br />Air-Entraining Admixture: ASTM C 260. <br /> <br />Joint Filler: ASTM C 612, Class 2, glass-fiber type; compressing to one-half thickness under a <br />load of 25 psi (172 kPa). <br /> <br />Steel Wire Mesh: Cold-drawn steel wire, galvanized, 0.041-inch (1.04-mm) diameter, woven <br />into 2-inch (50-mm) hexagonal mesh, and reinforced with a longitudinal 0.062-inch- (1.57-mm- <br />) diameter wire spaced 3 inches (75 mm) apart. <br /> <br />H. Galvanized Plain-Steel Welded Wire Reinforcement: ASTM A 185, 2 by 2 inches (50 by 50 <br />mm), WO.5 by WO.5, fabricated from galvanized steel wire into flat sheets. <br /> <br />1. Molded-Polystyrene Insulation Board: ASTM C 578, Type I, 0.90-lb/cu. ft. (14A-kg/cu. m) <br />minimum density. <br /> <br />1. Provide units with keying slots of approximately 3 percent of board's gross surface area. <br /> <br />2.2 AGGREGATE LIGHTWEIGHT INSULATING CONCRETE <br /> <br />A. Produce lightweight irumlating concrete using the minimum amount of water necessary to <br />produce a workable mix. <br /> <br />1. Do not exceed malXimum air content recommended by aggregate manufacturer. <br /> <br />B. Perlite Aggregate Mix: Lightweight insulating concrete produced from cementitious materials, <br />water, air-entraining admixture, and perlite mineral aggregates with the following physical <br />properties: <br /> <br />1. Available Manufacturers: Subject to compliance with requirements, manufacturers <br />offering products that may be incorporated into the Work include, but are not limited to, <br />the following: <br />2. Manufacturers: Subject to compliance with requirements, provide products by one of the <br />following: <br /> <br />LIGHTWEIGHT INSULATING CONCRETE <br /> <br />03521 - 2 <br />