Justin Grow is quick to haul out the old chestnut that Rome wasn't built in a day -- and neither was the concrete wall in front of his home. The wall wasn't even built in a summer -- as he initially ...
Loren Burnett, the CEO of Prometheus Materials in Longmont, thinks it's time to reconsider the concrete block. His company's proposed alternative is a "bio-cement" first developed at the University of ...
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