A new technique can produce cement using waste from demolished buildings, which researchers say could save billions of tonnes of carbon by 2050. “We have definitely proved that cement can be recycled ...

Traditional concrete blocks tend to have high levels of carbon, due to both the cement needed to make them and the steam-proofing process involved. Block-Lite is working with partners to reduce and ...

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 ...

One of the biggest problems in dealing with carbon dioxide emissions is the making of the key component of cement: lime (calcium oxide). Now, a small company with the cute name Sublime Systems appears ...

CarbonBuilt's plant in Danielson, Connecticut, is now producing more eco-friendly concrete blocks. The blocks are made with up to 50% less cement, a material whose production accounts for 7-8% of ...