The National Institute of Standards and Technology (NIST), an agency of the United States Department of Commerce, in support of efforts to develop standards for low carbon construction materials, has established the Low Carbon Cements and Concretes Consortium. The Consortium brings together stakeholders to identify and address measurement and standards needs related to low carbon cements and concretes used to reduce the overall greenhouse gas emissions from cement and concrete products.
BECOME A MEMBER
Cement is one of the most widely used materials and a critical component of roads, bridges, and buildings. Cement manufacturing is also a major contributor to carbon dioxide (CO2) emissions through both energy use and calcination reactions. To help meet net zero climate goals, industry is developing a variety of techniques to reduce the net amount of CO2 emitted from cement and concrete manufacturing. For example, one approach is to change the composition of the cement to reduce the total manufacturing process emissions. Another approach is to take advantage of carbonation, the uptake of CO2, by curing concrete under a CO2 atmosphere or injecting CO2 during the mixing process.
The initial focus of this consortium is to evaluate, develop, and standardize methods to characterize and quantify the carbon and carbonates in new low carbon cements and concretes. Test methods to specifically measure carbon in these materials are being explored. A later focus of the consortium will be to evaluate the suitability of current measurement standards to measure the material, mechanical, structural, and durability properties and, where appropriate, develop new test methods needed to help enable acceptance of new low carbon cements and concretes in the marketplace. NIST and industrial partners will perform research together with the following four goals:
No proprietary information will be shared as part of the Consortium. Participants will not be required to contribute any funds or pay any fee. Contributions of sample low carbon cements, concretes, and associated aggregates are highly encouraged.
lowcarbonconcrete [at] nist.gov