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1. Provide Type I,moisture-controlled units. <br /> 2. Provide Type II,non-moisture-controlled units. <br /> 3. Exposed Faces: Manufacturer's standard color and texture, unless <br /> 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 azea compressive <br /> strength indicated below: <br /> _ a. 1900 psi. <br /> b. Not less than the unit compressive strengths required to produce concrete unit <br /> masonry consiruction of compressive strength indicated. <br /> 2. Weight Classification: Normal weighY. <br /> C. Solid Load-Bearing Concrete Masonry Units: ASTM C 145,Grade N and as follows: <br /> 1. Unit Compressive Strength: Provide units with minimum average net area compressive <br /> strength indicated below: <br /> a 1800 psi. <br /> b. Not less than the unit compressive strengths required to produce concrete unit <br /> masonry construction of compressive strength indica.ted. <br /> 1. Weight Classification: Normal weight. <br /> 2.2 MORTAR AND GROUT MATERIALS <br /> A. Portland Cement: ASTM C 150,Type I or II,except Type III may be used for cold-weather <br /> construction. Provide natural color or white cement as required to produce required mortar color. <br /> B. Masonry Cement: 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 masonry <br /> standazd and this article. <br /> B. Steel Reinforcing Bars: Material and gade as follows: <br /> 1. Billet steel complying with ASTM A 615. <br /> 2. Grade 60. <br /> C. Plain Welded Wire Fabric: AST'M A 185. <br /> 2.4 JOINT REINFORCEMENT <br /> A. General: Provide joint reinforcement complying with requirements of referenced unit <br /> masonry standard and this article,form�from the following: <br /> 1. Galvanized carbon steel wire,coating class as required by referenced unit masonry standard <br /> for application indicated. <br /> B. Description: Welded-wire units prefabricated with deformed continuous side rods and plain <br /> cross rods into straight lengths of not less than 10 feet, with prefabricated corner and tee units, and <br /> complying with requirements indicated below: <br /> , Page 3 of 6 <br />