Sublime Cement: Low temperature processing, high ASTM C marks

Sources: Sublime Systems, Somerville, Mass.; CMCM staff Third-party testing confirms that Sublime Systems’ namesake concrete binder, produced with sharply lower carbon dioxide emissions metrics than portland cement, exhibits strength development, durability, low shrinkage and other engineering properties matching or exceeding ASTM C1157, Standard Performance Specification for Hydraulic Cement benchmarks. In 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…