PCA fills low-carbon cement and concrete guidance void

Sources: Portland Cement Association, Washington, D.C.  Portland Cement Association’s newest reference, “Lower Carbon Concrete: Voluntary Guidelines for Developing a Protocol,” provides design professionals, contractors, code officials, elected representatives, non-governmental organizations, and the public with a balanced view of greenhouse gas emission, life cycle assessment and engineering factors central to construction project planning and specifications. The document frames a protocol in…

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AWS data center concrete specs surpass 20,000 tCO2e savings

Amazon Web Services Director of Sustainability Chris Walker cites savings of 22,000-plus tons of carbon dioxide equivalent (tCO2e) in 2023 across 27 data center construction material schedules, owing to specification of lower carbon concrete and steel where possible. Coupled with the tCO2e metric, AWS continuously evaluates design criteria with an eye to streamlining material requirements “for everything from server racks…

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