Chryso North America has formulated a portland cement clinker + limestone grinding aid to address the higher water demand, lower compressive strength, plastic shrinkage and variable set times that concrete practitioners report when using Type IL in lieu of traditional ASTM C150 Type I/II binder. The EnviroAdd Next Generation Activator is introduced as a liquid in vertical or horizontal grinding…
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Ozinga steers localized cement production demonstration
Sources: Furno Materials, Mountain View, Calif.; CP staff A $20 million U.S. Department of Energy (DOE) Office of Manufacturing and Energy Supply Chains (MESC) grant will support a venture of Illinois-based Ozinga, top U.S. independent ready mixed concrete operator, and Furno Materials, a Silicon Valley startup eyeing ASTM C150-grade cement production with 20 ton/day capacity modules. The Furno process uses…
Read MoreTerra CO2 clinker-free OPUS Zero binder enters field concrete trials
Colorado-based Terra CO2 Technology Holdings Inc. has begun testing concrete mix designs bearing OPUS Zero, a binder finished free of portland cement clinker and produced with globally abundant, silicate-rich feedstocks. Material trials scheduled throughout 2024 involve specimen batching, pumping and engineering property testing, along with demonstration slab and vertical surface or structure placements. Early results indicate OPUS Zero meets or…
Read MoreTerra CO2 commences trials of clinker-free OPUS Zero binder concretes
Sources: Terra CO2 Holdings, Golden, Colo.; CP staff Terra CO2 has begun testing concrete mix designs bearing OPUS Zero, a binder finished free of portland cement clinker and produced with globally abundant, silicate-rich feedstocks. Material trials scheduled throughout 2024 involve specimen batching, pumping and engineering property testing, along with demonstration slab and vertical surface or structure placements. Early results indicate…
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