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CarbiCrete secures steel slag supply from Lafarge Canada
Written by Global Cement staff
15 December 2023
Canada: Carbon-negative concrete producer CarbiCrete has signed a deal with Holcim subsidiary Lafarge Canada. Under the deal, Lafarge Canada will process steel slag at its St. Constant cement plant in Québec for use as an ingredient in CarbiCrete’s CO2-cured cement-free concrete.
CarbiCrete partner Patio Drummond produces carbon-negative concrete blocks using CarbiCrete’s technology at its Drummondville concrete block plant in Québec. The company is on a drive to double the production of CarbiCrete blocks. It first partnered with CarbiCrete during trial production of its material in 2018.
Lafarge Canada vice-president of cement Andrew Stewart said “We are committed to reducing our environmental footprint and leading the way in sustainable construction. Our partnership with CarbiCrete is a testament to our dedication to offering sustainable solutions and actively participating in the circular economy.”
CarbiCrete CEO Chris Stern said “Collaborating with Lafarge allows us to leverage long-established infrastructure and years of expertise in processing steel-related by-products. This enables us to make an immediate climate impact as we scale the deployment of our technology which reduces embodied carbon in concrete by both avoiding emissions and removing carbon through mineralisation.” Regarding the on-going scale-up of production at Patio Drummond’s Drummondville plant, Stern said “Increased production of our carbon-negative blocks brings us closer to our common goal of decarbonising production of the world’s most consumed man-made substance.”
Sika opens Suzhou Technology Centre
Written by Global Concrete staff
15 December 2023
China: Switzerland-based Sika has opened its new Suzhou Technology Centre in Jiangsu Province. The centre will help Sika to develop its sustainable and high-performance technologies in order to grow it market potential throughout the Asia/Pacific region. By strategically expanding its research and development activities across all core technologies, Sika aims to further strengthen its global innovation leadership.
Chief innovation and sustainability officer Patricia Heidtman said "With our new technology centre, we are strengthening our innovation capabilities in the Asia/Pacific region and are fostering synergies in sustainable construction and environmentally friendly mobility. We have created the ideal framework for close collaboration between our research teams. It will thus enable us to develop forward-looking technologies for our customers that combine sustainability with performance."
Holcim launches Phoenix circular 3D-printed concrete bridge
Written by Global Concrete staff
14 December 2023
Switzerland: Holcim has partnered with the Federal Institute of Technology (ETH) Zurich’s Block Research Group, incremental3D and Zaha Hadid Architects Computation and Design Group for the launch of Phoenix, a 3D-printed concrete bridge made using reduced-CO2 circular technologies. The bridge employs Holcim’s ECOCycle recycled 3D-printing concrete and stands through compression, without reinforcement, reducing the volumes of materials used by 50% compared with conventional construction methods.
Holcim head of global research and development Edelio Bermejo said “I am thrilled to unveil Phoenix, a monument to sustainability and the result of a fruitful collaboration with our partners to meet a common goal: demonstrating that essential infrastructure can be designed and built in a way that is circular and low-carbon today. This project showcases the impact that innovation can have in Holcim’s mission to decarbonise building for a net-zero future.”
C-Crete Technologies pours zeolite-based concrete in Seattle
Written by Global Concrete staff
08 December 2023
US: C-Crete Technologies poured its zeolite-based concrete for the construction of a 20t slab-on-grade foundation and set of steps in Seattle. The concrete uses zeolite as a binder, removing the need for cement.
C-Crete Technologies founder and president Rouzbeh Savary said "Our successful 20t concrete pour in Seattle using the zeolite-based binder is an important step in our quest to revolutionise construction. This landmark use of the product epitomises C-Crete's commitment to reshaping the industry through environmentally conscious innovations. By tapping into various natural rocks like zeolite and converting them into cementitious binders we're forging a path toward truly sustainable infrastructure."
Earth Uprising targets Lafarge France sites
Written by Global Concrete staff
08 December 2023
France: Climate protest group Earth Uprising says that it will target sites belonging to Holcim subsidiary Lafarge France for demonstrations as part of planned actions between 9 and 12 December 2023. Ouest France News has reported that the demonstrations will include a ‘festive but determined’ gathering at Lafarge France’s Saint-Barthélemy-d'Anjou concrete plant in Maine-et-Loire on 10 December 2023.
Lafarge France said “The people who intend to respond to this call for mobilisation against our sites have the wrong target. Of all industrial sectors, ours is moving the fastest and strongest in favour of the climate.” It added “Moreover, we are useful to society. The country's needs for housing, public facilities and infrastructure are immense, and concrete represents the best solution to meet them.”