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� -.__ <br /> a. Concrete Masonry Units: Manufactured to specified dimensions of 3/8 <br /> ' inch less than nominal widths by nominal heigiits by nominal lengths <br /> indicated on drawings. <br /> 1. Provide Type I,moisture-controlled units. <br /> � 2. Provide Ty}�e II,non-moisture-controlled units. <br /> 3. Exposed Faces: Manufacturer's standard color and texture, <br /> unless otherwise indicated. <br /> � B. Hollow Load-Bearing Concrete Masonry Units: ASTM C 90,Grade N and as follows: <br /> 1. Unit Compressive Strength: Provide units with minimum average net area <br /> � compressive strength indicated beIow: <br /> a. 1900 psi. <br /> � b. Not less than the unit compressive strengths required to produce concrete <br /> �nit masonry construction of compressive strength indicated. <br /> 1 Weight Classification: Normal weight. <br /> ' C. Solid Load-Bearing Concrete Masonry Units: ASTM C 145, Grade N and as follows: <br /> � 1. Unit Compressive Strength: Provide �its with minimum average net area <br /> compressive strength indicated below: <br /> a. 1800 psi. <br /> , b. Not less than the unit compressive strengths required to produce concrete <br /> unit masonry construction of compressive strength indicated. <br /> ' 1. Weight Classification: Normal weight. <br /> 2.2 MORTAR AND GROUT MATERIALS <br /> , A. Portland Cement: ASTM C 150, Type T or II, except Type III may be used for cold- <br /> weather construction. Frovide natural color or white cement as required to produce <br /> required mortar color. <br /> 1 B. Masonry Cemen� ASTM C 91. <br /> C. Water. Clean and potable. <br /> , 2.3 REINFORCING STEEL <br /> � A. General: Provide reinforcing steel complying with requirements of referenced unit <br /> masonry standard and this article. <br /> � B. Steel Reinforcing Bars: Material and grade as foliows: <br /> ' 1. Billet steel complying with ASTM A 615. <br /> 2. Grade 60. <br /> , C. Plain Welded Wire Fabric: ASTM A 185. <br /> 2.4 JOINT REINFORCEMENT <br /> � A. Generai: Provide joint reinforcemen# complying with requirements of referenced unit <br /> masonry standard and this article,formed from the foltowing: <br /> ' 1. Galvanized carbon stee!wire,coating class as required by referenced unit <br /> iT1VIT MASONRY Page 3 of 6 <br /> ' <br />