Terra CO2 has performed a successful demonstration pour of its OPUS silicate-based supplementary cementitious material (SCM) at a construction site in Texas. Terra CO2 supplied the SCM to indiGO Auto Group for the construction of its Porsche Sugar Land car dealership in Houston. It says that the product delivers durability, strength and functionality on a
Bokaro Steel Plant has won granulated blast furnace slag (GBFS) supply contracts with ACC and UltraTech Cement. Under the contracts, Bokaro Steel Plant expects to supply 1.3Mt of GBFS from its facilities in Jharkhand for use in cement production in the state. The Pioneer newspaper has reported that the contracts will run until August 2026.
CemVision has reported the successful conclusion of a large-scale production pilot of its limestone-free alternative clinker. CemVision produces clinker using 100% supplementary cementitious materials (SCMs) from the steel and mining sectors. Possible examples of waste streams that could be used as SCMs include ground granulated blast furnace slag (GGBFS) and alkali-activated mine tailings. CemVision says
Alternative cement and concrete producers have welcomed a new Australian civil engineering standard that allows builders to use reduced-CO2 geopolymer concrete in infrastructure projects. Wagners, which produces Earth Friendly Concrete (EFC), said that the revision has removed on if its key barriers to wider market acceptance. EFC replaces 100% of cement with supplementary cementitious materials, including
A team at Imperial College London has won a US$1.27m grant for its research into developing carbon negative cement from silica. The research won the Department for Energy Security and Net Zero (DESNZ)’s Carbon Capture, Usage & Storage (CCUS) Innovation 2.0 competition. The Imperial team sources its silica from natural olivine. It says that the
A team at the University of Tokyo has developed cement-free alternative concrete from ultra-fine sand and fly ash. NHK has reported that the process uses recyclable alcohols and has lower CO2 emissions compared to concrete production using ordinary Portland cement. Research with industrial partners into possible construction sector applications is underway. Partnerships with Japanese ready-mixed concrete
The Global Cement and Concrete Association (GCCA) has named the 15 anticipated deliverers of low-CO2 cement and concrete production shortlisted for participation in its second Innovandi Open Challenge. The association chose the start-ups based on their potential to deliver CO2 emissions reduction in the global cement and concrete sector in line with its Concrete Future 2050 Net
Ireland-based Ecocem has partnered with CB Green to launch a joint venture to scale up production of 70% reduced-CO2 cement based on Ecocem’s ACT technology. The technology combines widely available alternative raw materials into a product with enhanced strength and durability compared with ordinary Portland cement (OPC). The new joint venture will build a grinding plant
Italcementi, part of Heidelberg Materials, has filed a patent application for a titanium dioxide-based cementitious material. The Patent Office Journal has reported that the material consists of titanium dioxide (TiO2) imbued with carbon dopants. This is produced by irradiating the TiO2 in the presence of an inert gas and an organic compound.
Dalmia Cement (Bharat) has launched Dalmia Supreme cement, a Portland pozzolana cement (PPC), in the Eastern India market. The producer says that the cement is a is a specialised, best-in-class product formulated for all construction applications, offering better workability, higher density, chemical resistance and strength and faster setting times than ordinary Portland cement (OPC). Dalmia
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