Displaying items by tag: CO2

Canada: CarbiCrete has installed new equipment at Patio Drummond's Drummondville plant for the production of concrete using its cement-free technology. The technology mineralises captured CO₂ for sequestration inside the product.

France: Saint-Gobain subsidiary Chryso has launched EnviroMix C-Clay, a new range of additives designed for the production of concrete using calcined clay cement. Chryso says that the product enables concrete producers to reduce their CO₂ emissions by 50% by displacing ordinary Portland cement (OPC).

Singapore: A team at Nanyang Technological University in Singapore has developed a new method for 3D printing concrete that incorporates steam and CO₂ from industrial by-products into the concrete mix. The team says that the process enhances the strength of concrete, while reducing the total volume used in construction.

Canada: CarbiCrete has entered into a new ‘financing collaboration’ with US-based social media group Meta for its installation of CarbiCrete equipment at Canal Block’s Drummond concrete plant in Ontario. Climate consultancy 3Degrees will verify Canal Block’s CO₂ emissions reductions per the terms of the financing collaboration.

Saudi Arabia: Al Kifah Readymix & Blocks (KRB) has secured accreditation for its CarbonCure CO₂-injected concrete. Gulf Construction News has reported that the Saudi Standards, Metrology and Quality Organisation accredited CarbonCure as a Type-S additive following year-long tests. Canada-based CarbonCure Technologies licensed the technology to KRB. The producer uses CarbonCure in its Congreen range of reduced-CO₂ cements.

KRB General Manager Nigel Harries said "This milestone marks KRB as the first company in the Kingdom to utilise this innovative solution.”

Spain: Cemex España has purchased two additional electric concrete mixer trucks (e-mixers) for its fleet. Alimarket-Construcción News has reported that one e-mixer will operate at the San Fernando ready-mix concrete batching plant in Madrid and the other at the Sant Just ready-mix concrete batching plant in Barcelona.

UK: Russell Roof Tiles has installed a 165kW solar power plant as part of a €22.2m upgrade to its Burton concrete roof tiles plant in Staffordshire. Energy company Alt-Group supplied the solar power plant, which is equipped with Solis Inverters’ energy storage inverters. The upgraded Burton plant also features wash water recycling.

Russell Roof Tiles has signed a pledge to achieve Scope 1 and 2 CO₂ neutrality by 2040.

US: Novel concretes developer Greencraft has made a patent application for a new method of CO₂ mineralisation using a microporous material containing mineral oxides, like slag. Global Warming Focus News has reported that the method also works for natural hyaloclastite, bottom ash, fly ash, volcanic ash and lava.

Greencraft said that its method marks an ‘improvement’ in current techniques for sequestering CO₂ in alternative materials.

UK: Switzerland-based Neustark has partnered with Holcim subsidiary Aggregate Industries to launch the UK’s first mineralisation plant in Greenwich, London. The small-scale mobile plant will sequester CO₂ in recycled concrete produced using fines recovered from construction and demolition materials (CDM). The plant is situated at an existing Aggregates Industries CDM recycling site. A large-scale plant with a sequestration capacity of 1000t/yr of CO₂ is due to follow in early 2025.

Neustark CEO Valentin Gutknecht said "Neustark and Holcim have been working together almost since the founding of Neustark five years ago. 1Mt of CO₂ durably removed from the atmosphere in 2030 – that’s our ambition. We’re already well underway towards the megatonne goal. Our strategic partnership with Holcim represents a significant part of this roadmap. It will be a true catalyst to further scale up the permanent carbon removal impact that we generate in the next few years.”

Aggregate Industries CEO Lee Sleight said that the partnership would turn London into ‘one of the world’s largest urban mines.’ He said “This isn’t just a great carbon removal innovation but a great circular economy innovation, where we are taking what was once a waste stream and reusing it, saving us from digging up virgin materials in the first place."

Neustark has so far sequestered 2500t of CO₂ in circular concrete for use in further construction.

Greece: Titan Cement Group subsidiary Interbeton has launched Velter, a circular, 30% reduced-CO₂ ready-mix concrete. The product comes with a Type III environmental product declaration from Eurocert.

Director of concrete operations Christoforos Voulgaris said "This new product line gives engineers, architects, builders and investors the opportunity to differentiate their projects with improved durability and a meaningful contribution to mitigating the effects of climate change.”