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Tag: proposal

NCMA weighs proposal for 100-psi boost in ASTM C90

October 31, 2011 CP Staff

Preliminary results from National Concrete Masonry Association Research and Development Laboratory tests on concrete masonry units and prism specimens indicate a one-to-one correlation in compressive strength at the 2,000-psi range.

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Latest News100-psi, ASTM, boost, C90, NCMA, proposal, weighs

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