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Building Materials
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The First Green Replacement for the Concrete Block
Four years ago, I asked a contractor and architect whether or not there exist concrete masonry units (CMU) with recycled content. “CMU is CMU, just use the standard specs,” they said. Fast forward to 2009, while speed-walking through the exhibit aisles at the 2009 Green California Summit and Exposition, I came upon Integrity Block. The…