Displaying items by tag: cementfree concrete
US: Terra CO2 has begun full-scale trial production of concrete without cement using its novel supplementary cementitious material, Opus Zero. The SCM consists of ground, heated glass spheres made from silicate rock.
Chief scientific officer DJ Lake said “Opus Zero represents a pivotal moment in our journey towards sustainable cement and concrete. Of the very few non-carbon-capture solutions to decarbonising cement, with none proven at scale, Opus Zero stands above the rest for being inherently cost-efficient, practical and scalable for the industry. Today, Opus Zero represents a zero-clinker cement that can be produced with abundant feedstock around the world, does not require opening new mines to scale, and aims to seamlessly fold into the current industry landscape.”
Partanna to build four new carbon negative binder plants
30 January 2024Middle East/North America: Climate tech start-up Partanna has announced plans for four new plants to produce its carbon negative binder. The plants will be located in the Bahamas, the US and the Gulf region.
Partanna said that the development demonstrates its growing momentum as a construction sector disruptor, offering a sustainable, cost-comparable alternative to cement for users of concrete.
CarbiCrete secures steel slag supply from Lafarge Canada
15 December 2023Canada: 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.”
C-Crete Technologies pours zeolite-based concrete in Seattle
08 December 2023US: 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."
France: Hoffmann Green Cement Technologies signed a partnership agreement with ready-mix concrete producer CRBPE, Dow Jones Institutional News has reported. Under the contract, Hoffmann Green Cement Technologies will supply its clinker-free cement to CRBPE’s four batching plants in eastern France.
Hoffmann Green Cement Technologies co-founders Julien Blanchard and David Hoffmann said "This new commercial partnership with CRBPE, a family-owned company that shares our ambitions to decarbonise the construction sector, strengthens our position in the ready-mix concrete market. It is also a fantastic opportunity to increase our presence in the eastern area of France and expand our territorial coverage."
India: Finland-based Betolar introduced its artificial intelligence-based service for production of reduced-CO2 concrete using its Geoprime additive at World of Concrete India 2023 on 18 October 2023. Betolar designs recipes and provides a liquid chemical dosing system and post-production services to Geoprime users. Dow Jones Institutional News reports that Betolar has concluded strategic tie-ups in South and West India, and is ‘actively planning’ further expansion.
Managing director Abhishek Bhattacharya said "Interest in our solution is growing fast in India and we have successfully demonstrated that the twin goal of sustainability and performance can be achieved remarkably faster with Betolar’s Geoprime solution.”
US Department of Energy grants C-Crete Technologies US$2m
17 October 2023US: The US Department of Energy has awarded C-Crete Technologies US$2m in funding. C-Crete Technologies is developing a method for using CO2 captured at industrial sources or from the air as an ingredient in its cement-free concrete. The binder will produce almost no CO2 and continue to absorb more CO2 from the air over time. It offers scalability and cost-parity with conventional cement for concrete producers, according to the developer.
C-Crete Technologies president Rouzbeh Savary said “We are committed to crafting a cement-free, carbon-negative ready-mix concrete that doesn’t just mitigate CO2 emissions but actively contributes to reversing climate change. Our aim is nothing short of revolutionising this hard-to-abate, carbon-heavy sector.”
Hoffmann Green Cement Technologies partners with Marne Béton
12 September 2023France: Clinker-free alternative cement producer Hoffmann Green Cement Technologies has signed a strategic partnership deal with Marne Béton. Marne Béton operates five ready-mix concrete batching plants in Eastern France.
Boursier News has reported that Marne Béton expects to benefit from the ‘Environmental and technical advantages of Hoffmann cements’ in striving to meet growing local demand for low-carbon concretes.
C-Crete Technologies celebrates commercial debut of its binder in cement-free concrete pour in Seattle
19 July 2023US: C-Crete Technologies supplied its binder for a pour of 60t of cement-free concrete at a construction site in Seattle, Washington. CNNW News has reported that the binder replaces cement, eliminating 1t of CO2 emissions per tonne of concrete.
C-Crete Technologies president Rouzbeh Savary said "We are thrilled to introduce our cement-free concrete, a game-changer in sustainable construction.” He added “Given that our product meets industry standards and has cost-parity with conventional concrete, it opens up an entirely new era in construction."
Denmark: Finland-based Betolar has supplied its Geoprime additive for its maiden construction project in Denmark. Its customer IBF used the additive to produce low-cement paving stones for a 1.5 hectare expansion to the lorry park at the Port of Aalborg. The stones consisted of an 84mm-thick cement-free base made of Geoprime material, with a 6mm-thick cement-based concrete top. The supplier said that the use of Geoprime reduced the project's cement consumption by 90%. This more than halved the carbon footprint of the work.
Betolar's chief commercial officer Ville Voipio said "This shows that the circular economy solution we have developed, which utilises industrial side streams, also works in large construction projects. We have been doing development work with IBF for a long time. Now there is a product on the Danish market that radically cuts emissions compared to traditional products."
Denmark is committed to eliminating 70% of its annual CO2 emissions between 2020 and 2030.