Specifications (LIGHT WEIGHT UNITS)


Light Weight Concrete Masonry Units manufactured by Chicopee Mason Supplies, Inc / R. Ducharme, Inc, Chicopee, MA shall comply with requirements of the current issue of the following standards and with other requirements specified herein.

1.  Hollow & Solid Loadbearing Units:  Shall comply with all provisions as ASTM C90-96a, Type I, Class I, Moisture Controlled Units.

2.  Compressive strengths:  All units shall have a minimum compressive strength on the net area of 1900 PSI when tested in accordance with ASTM C-140

3.  Light Weight Concrete Masonry Units:  Shall be manufactured using expanded shale aggregate conforming to ASTM C-331 specifications for "Lightweight aggregate for concrete masonry units".


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