Contractors survey stakeholders on portland-limestone cement concretes

Sources: American Concrete Institute, Farmington Hills, Mich.; CMCM staff American Concrete Institute Committee 302, Construction of Concrete Floors, and the American Society of Concrete Contractors are inviting practitioners to share their experiences placing and finishing mixes bearing ASTM C595, Type IL portland-limestone cement (PLC). Their 15-question survey, posted here, launches as Read more…

Graphene, SCM developers lead carbon challenge short list

Sources: Global Cement and Concrete Association, London; CMCM staff The Global Cement and Concrete Association has shortlisted nine North American startups for the 2023 Innovandi Open Challenge, soliciting technologies that lower the carbon factor in finished concrete: • Arrakis Materials, Woburn, Mass.; carbon-negative materials for concrete mixes • Chement, Chicago; electrochemical process Read more…