Displaying items by tag: testing

France: Hoffmann Green Cement Technologies has formed a strategic partnership with paper mill Norske Skog Golbey to integrate ash from paper residue incineration into its clinker-free cement. The partners have been collaborating since January 2024 and the first shipment of paper ash for large-scale use was sent in May 2025, after successful testing.

Sweden: Cemvision and S:t Eriks have entered into a partnership agreement as a result of several pilot projects using Cemvision’s cement in S:t Eriks’ production. The partners have signed a letter of intent to develop and implement sustainable concrete solutions within water and sewage infrastructure. Having already tested Cemvision’s cement in its own production, S:t Eriks will then implement the cement in commercial projects. The product reportedly offers high resistance to sulphate and acid attacks, which contribute to longer service life.

In the coming months, Cemvision and S:t Eriks will continue testing to explore the potential for broader implementation of the cement in water and sewage systems.

Japan: Mitsubishi UBE Cement Corporation has started a commercial-scale demonstration test using ammonia as a heat energy source in a cement kiln and calciner at Ube cement plant.

The project, supported by Yamaguchi Prefecture’s 2023 Carbon Neutral Complex Development Promotion Subsidy, follows an ammonia co-combustion test in 2023. In collaboration with UBE Corporation, a test facility for ammonia co-firing was installed.

The company has set a target of replacing 30% of its coal consumption with ammonia in the cement kiln, with similar levels targeted for the calciner by the end of the 2025 financial year. Mitsubishi UBE Cement is also planning further ammonia combustion tests with post-consumer plastics and other materials as energy sources.

US: Heidelberg Materials North America has begun test well drilling at its Mitchell cement plant in Indiana as part of the CarbonSAFE carbon capture and storage (CCS) project led by the Illinois State Geological Survey (ISGS).

The drilling started on 22 January 2025 to assess the geology beneath the plant, which is located in the Illinois Basin, for CO₂ storage potential. The test will evaluate three carbon storage formations to a depth of 2210m to determine if the site can safely store 50Mt of CO₂ over 30 years.

The project began in early 2023 with seismic data collection across 87km of roadways, leading to the installation of the geologic test well.

Greg Ronczka, vice president of Carbon Transport & Storage Development said "This is an exciting step for the project as we learn which potential formations may be suitable to permanently and safely store the CO₂. This knowledge will help us design the injection and observation well network and allow us to prepare a complete and accurate US Environmental Protection Agency Class VI permit application."

Sweden: Heidelberg Materials has successfully operated a 300kW plasma-heated cement kiln at its Slite cement plant, which it claims is the first of its kind. The producer has achieved 54 hours of continuous operation, with 60% CO₂ concentration in the flue gas. The aim is to reach 99%.

The kiln is part of the ELECTRA project, which aims to replace traditional combustion processes with electricity-based solutions, like plasma. The project consists of 17 partners from 8 countries.

Project manager Bodil Wilhelmsson said "It looks very promising. We started the tests at the end of last year and can now say with certainty that this is the right way to go: we will be able to produce clinker with plasma."

Fuel-related CO₂ emissions from cement production are eliminated because no fuel needs to be used in the production process. Instead, CO₂ is heated to over 5000°C, where it becomes a plasma jet that heats the material in the kiln.

Wilhelmsson added "The absence of fuel in the process means that there is no ash in the product. This means that a parameter that could affect the quality of the product if it fluctuates is no longer considered. So, it looks like the quality of the clinker can actually be slightly higher in this process."

Heidelberg Materials plans to build a 1MW kiln in Skövde cement plant in 2026, where further tests will continue.

UK: Cemvision has launched one of the UK’s first commercial applications of its low-carbon Re-ment cement technology at a STOREX self storage development in Sunbury, near London. The foundational slabs for the site employ Cemvision's Re-ment Massive product, which replaces traditional Portland cement. Recent laboratory tests have shown that the product achieves a 75% CO₂ reduction and a 28-day compressive strength, that reaches the C50/60 classification, compared to traditional Portland cement. STOREX and Cemvision have signed a Letter of Intent for further collaboration in the UK and other markets.

“This project is a landmark achievement for Cemvision as we bring the benefits of green cement to UK customers,” said Oscar Hållén, CEO of Cemvision.

Cemvision says that its Re-Ment Massive technology reaches different levels of CO₂ reduction depending on application and local conditions, with the product already having achieved more than a 95% reduction compared to Portland cement in demo production in the EU, according to the company.

US: The US Department of Energy's (DOE) Office of Fossil Energy and Carbon Management has selected Cemex's Knoxville cement plant in Tennessee as the site for a carbon capture, removal and conversion test centre. The project is part of a US$101m initiative shared among five projects that aim to decarbonise cement plants and power facilities.

Cemex, in collaboration with the University of Illinois Urbana-Champaign (UIUC) and a coalition of US cement producers, will develop the conceptual design, business, technical and managerial frameworks for the test centre under Phase 1. Phase 2 will involve constructing and operating the centre to evaluate advanced carbon management systems.

Jaime Muguiro, president of Cemex US, said “While we are making steady progress, the cement industry has the opportunity to accelerate the pace of our decarbonisation even more. I am excited that our Knoxville cement plant has been selected as the host site for the carbon capture test centre. Through collaboration and continuous innovation with the University of Illinois and industry peers, Cemex is committed to advancing decarbonisation solutions.”

France: Bouygues Construction and Ecocem have signed a partnership to facilitate the use of Ecocem’s low-carbon ACT cement technology in Bouygues Construction’s projects.

The collaboration involves three stages of testing and validation. First, Bouygues Construction will conduct independent laboratory tests to evaluate ACT’s performance. Next, structural concrete walls will be built at Bouygues Construction’s facilities in Chilly-Mazarin, France starting in early 2025, and monitored to ensure thorough testing. Finally, a full-scale mock-up, including all structural elements, will be constructed to assess the in-situ application of ACT technology.  The testing programme aims to integrate ACT technology into Bouygues Construction projects following successful validation.

Germany: Capsol Technologies has signed a cooperation agreement with Holcim to deliver a CapsolGo carbon capture demonstration campaign at Holcim’s Dotternhausen plant in southern Germany. The CapsolGo campaign will test Capsol’s carbon capture technology using its hot potassium carbonate (HPC) solvent. Capsol Technologies will provide the demonstration as a turnkey solution, including testing and validation to supply critical data and insight into the technology.

Dieter Schillo, plant manager of Holcim (Süddeutschland), said “The CapsolEoP (End-of-Pipe) unit’s design, requiring no external steam supply and exhibiting low energy consumption, makes it an attractive option for our Dotternhausen plant.”

If successful, Holcim plans to deploy Capsol’s technology across multiple cement plants globally. This builds on a feasibility study conducted by Aggregate Industries UK, a Holcim subsidiary, for the Cauldon cement plant in Stoke-on-Trent. Testing at Dotternhausen will run for four months, starting in the second quarter of 2025.

Australia: Suvo Strategic Minerals has been offered an opportunity to field test its lower carbon cement made from kaolin in the Victorian government's level crossing removal project (LXRP). This trial aims to evaluate Suvo’s cement formulation, which the company hopes can reduce up to 70% of Portland cement typically used in construction.

The company utilises ‘hydrous’ kaolin from its Pittong operation, located 40km west of Ballarat, Victoria, in producing this cement. The LXRP trial will allow Suvo to demonstrate the feasibility of using their product in real-world infrastructure projects, with help from the government to navigate the commercial and technical approval processes to introduce its cement product to the market.