Standard Concrete Masonry Spec. Building Products Corp
E. Solid LoadBearing Block: ASTM C90n normal weight (125 lbs. per cubic foot dry weight). SMOOTH FACE CONCRETE MAONRY UNITS A. Manufacturer: BUILDING PRODUCTS CORP., 950 Freeburg Ave., Belleville, IL 62221, . B. All units will conform to ASTM C90. 1. Weight Classification: Normal Weight. 2. Minimum net Compressive Strength ...