Displaying items by tag: supplementary cementitious materials
Golden Bay Cement secures bottom ash supply
09 May 2023New Zealand: Golden Bay Cement has signed a deal with Genesis Energy for a supply of bottom ash from Huntly power plant for use in cement production at its Portland cement plant in Northland. Genesis Energy generates 20,000t/yr of bottom ash at the Huntly plant, situated in Waikato, 260km south of the Portland cement plant. The plant currently uses 15,000t/yr of fly ash from the Huntly power plant in its operations. The producer was previously investigating the use of volcanic ash in cement production in 2022. It currently uses waste tyres and wood waste as alternative fuels (AF) to produce its EcoSure low-carbon general-purpose cement.
Golden Bay Cement's general manager Gian Raffainer said "We are driven to decarbonise and achieve 30% less carbon by 2030. Contributing to waste reduction at a large scale for the benefit of all New Zealanders is incredibly exciting. It is a win-win for the environment and for Kiwis who want to use more environmentally friendly products."
Dalmia Cement (Bharat) launches Dalmia Supreme Portland pozzolana cement in Eastern India
05 May 2023India: 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 Cement already sells Portland fly ash cement under its Konark cement brand.
Dalmia Cement (Bharat)'s head of sales, logistics, technical services and marketing Rajiv Prasad said “We are excited to introduce Dalmia Supreme Cement in the Eastern market. In line with the company’s customer-centric approach, this new offering is to cater to the growing needs of a specialised product for 'Stronger, Faster and Better' construction."
UK: The UK government has committed to investments worth Euro22.8bn in early deployments of carbon capture technology. It will announce a shortlist of new projects for deployment later in March 2022.
The government said "This unprecedented level of funding for the sector will unlock private investment and job creation across the UK, particularly on the east coast and in the North West of England and North Wales. It will also kick-start the delivery of subsequent phases of this new sustainable industry in the UK."
Ireland-based Ecocem responded to the budget with a call for funding for more short-term areas besides carbon capture. It said these will be essential in order for the UK cement and concrete industry to reach its 45% decarbonisation target by 2030. The slag-based cement products company called for funding for low-clinker technologies which have already been developed and can be rolled out at scale before 2030, until carbon capture becomes a 'scalable, viable option.'
Progressive Planet to supply PozGlass to Lafarge Canada
16 March 2023Canada: Progressive Planet has secured a contract to supply its PozGlass recycled glass-based supplementary cementitious material (SCM) to Lafarge Canada. The cement producer says that it will test the commercial viability of all PozGlass produced at Progressive Planet's Kamloops pilot plant in British Columbia, once the plant commences PozGlass production in 2024.
Hallett Construction Materials orders Christian Pfeiffer ball mill
03 February 2023Australia: Germany-based Christian Pfeiffer has received an order for a grinding circuit comprising a 16.3m-long ball mill and a QDK T 250-Z type separator from Hallett Construction Materials. The circuit will have a capacity of 84t/hr, according to the supplier. Hallett Construction Materials plans to use the equipment at its upcoming Port Augusta slag cement grinding plant. The plant is scheduled for commissioning in January 2024.
Hallett Construction Materials chief executive officer Kane Salisbury said, “For us, the sustainability of the plant is the highest priority. That’s why we manufacture cement containing 100% slag.” Salisbury added “The Christian Pfeiffer process experts convinced us that the ball mill, in combination with a high efficiency separator, is the best system to serve our requirements.”
Unacem Perú to 'significantly increase' cement capacity
23 January 2023Peru: Unacem Perú plans to 'significantly increase' its cement production capacity 'in the medium-term future.' Prior to that, the producer will invest US$130m in capital expenditure during 2023, double what it invested in 2022. The investments will go towards slightly expanding the producer's capacity from 8.3Mt/yr and increasing alternative raw materials use in its cement production, including pozzolan and ground granulated blast furnace slag (GGBFS). Additionally, it will open its new Manchay limestone quarry in Pachacámac in early 2023.
Unacem said that it increased its cement sales 'unexpectedly' during 2022. It operated at 85 - 90% capacity utilisation, and continued to export clinker.
Australia: First Graphene has partnered with Suvo Strategic Minerals to develop graphene-enhanced metakaolin for use in cement and concrete production. Metakaolin is a pozzolanic material derived from kaolinite clay. The partners believe that the technology has commercial potential to improve concrete performance and reduce CO2 emissions.
Holcim acquires Nicem
10 January 2023Italy: Holcim announced its acquisition of Nicem, Italy's ground calcium carbonate market leader. The group said that it plans to use Nicem's ground calcium carbonate as raw material in production of its ECOPact and ECOPlanet reduced-CO2 cement and concrete range.
Holcim's Europe regional head Miljan Gutovic said “Nicem complements our existing operations perfectly and allows us to further leverage our expertise in green formulation, opening a new source of alternative materials to decarbonise our ready-mix concrete. I look forward to welcoming the employees of Nicem to the Holcim family, whose valuable expertise will help us accelerate green growth.”
Votorantim Cimentos tightens CO2 reduction targets
05 December 2022Brazil: Votorantim Cimentos has revised its Scope 1 CO2 emissions reduction goal down to 475kg/t of cementitious product by 2030, from 520kg/t previously. The new target is 8.7% lower than the previous one, which it set in November 2020. Votorantim Cimentos previously reduced its emissions per tonne by 20% between 1990 and 2021. The group's targeted reduction from a 2018 base year now equates to 25%. The Science-Based Targets Initiative (SBTi) validated the ambitious target on 1 December 2022.
Votorantim Cimentos expects to achieve its aim through increased alternative fuel (AF) co-processing, substitution of supplementary cementitious materials, improved efficiency and use of renewable power and the development of new technologies, including carbon capture.
The group's global sustainability, institutional relations, product development and engineering director Álvaro Lorenz said “The fight against the negative effects of climate change is at the heart of our strategy and reflects our focus on competitiveness and on creating a positive legacy. The most competitive businesses will be those with the lowest greenhouse gas emissions. After all, the environmental crisis is also an economic and social crisis. The validation of our new target by SBTi reinforces our commitment and continuous efforts toward the net-zero agenda.”
Ecocem launches ACT alternative materials cement product
29 November 2022Ireland: Ecocem has announced the launch of ACT, an alternative materials-based cement ingredient capable of reducing the CO2 emissions of cement production by 70%. The developer says that any existing cement plant can produce ACT at comparatively low cost. The technology is globally scalable, and Ecocem expects to achieve full commercial availability across its Benelux, France, Ireland and UK markets by 2025.
Ecocem managing director Donal O’Riain said “We are eager to work closely with the cement industry and with policymakers to support the scaling and development of a new generation of low-carbon cements. Current policy priorities on decarbonising cement have now been overtaken by technology. Fully effective deployment of ACT requires policymakers to provide effective support well beyond their traditional emphasis on CCUS as the core cement decarbonisation technology.”
Ecocem's investors include France-based building products company Saint-Gobain and US-based Breakthrough Energy Investments.