Displaying items by tag: testing

Indonesia: Suvo Strategic Minerals has reported successful laboratory tests in collaboration with Makassar State University (UNM) in Indonesia, transforming nickel slag into a ‘high-strength, low-cost and low-carbon’ cement, according to The Sydney Morning Herald. The trials used slag from PT Huadi Nickel-Alloy Indonesia's operations in South Sulawesi, achieving a compressive strength of 37.5MPa after seven days. The company is now looking to conduct further testing and will provide the results to PT Huadi, with the aim of forming a partnership for the commercialisation of low-carbon cement using nickel slag.

Aaron Bank, executive chair of Suvo Strategic Minerals, said “We are excited to have commenced this workstream in Indonesia testing the byproduct of one of the country’s largest mining companies, with our ultimate goal being to manufacture an environmentally-friendly and low-carbon alternative to Portland cement. Achieving up to 37.5MPa after only seven days is an outstanding first round trial result for the company and could provide an entry into a large industry.”

Denmark: Aalborg Portland, a Danish cement firm, has completed testing for its second carbon capture pilot plant and will now undergo further trials in Romania and Greece, according to M-Brain News. This plant is a key component of the EU-subsidised ConsenCUS project.

A spokesperson for Aalborg Portland said "This experience offers preliminary knowledge ahead of establishing a full-scale CO₂ capture facility, and we are also contributing to the progression of this area where we, within the ConsenCUS collaboration, have verified the existence of multiple potential technologies for CO₂ capture."

Philippines: OceanaGold Philippines (OGPI) is collaborating with Holcim Philippines to assess the feasibility of using mine tailings in cement production. Holcim will begin by acquiring tailing samples from OGPI for initial testing, aligning with its ‘circular economy’ program that integrates waste materials into cement. Both companies are committed to advancing the study, pending formal partnership arrangements and necessary permits.

OGPI President Joan Adaci-Cattiling said “We’re just waiting for the permit. Right now, we’ve found a way to put plan tailings to good use.”

Australia: Western Australia’s environment minister Reece Whitby has questioned the efficacy of tests submitted by Cockburn Cement in relation to its Munster lime plant in May 2023. The tests showed successes in odour reduction during sand feeding at the plant’s Kiln 6. Business News Western Australia has reported that the government and an independent expert have raised ‘areas of concern’ as to whether the trial represents normal operating conditions for the kiln.

David Scaife, who represents Cockburn District in the Western Australia Legislative Assembly, said "My gripe is not with the workers, it is with the senior management and the directors of Cockburn Cement and its owner, Adbri, who have refused to do the right thing either by moving the lime manufacturing operations to its Kwinana facility or at least making the investments necessary to eliminate the odour."

UK: The Cement 2 Zero project has successfully concluded its first trial melt of recovered cement paste in an electric arc furnace at the Materials Processing Institute’s Teesside campus. The project uses the paste as flux for electric steel recycling. Cambridge Electric Cement (CEC) has demonstrated that the ‘slag’ from this process can be ground into fine clinker that, when mixed with gypsum and supplementary cementitious materials (SCMs), produces net zero CO₂ cement. The Cement 2 Zero project to produce CEC’s cement at an industrial scale launched in March 2023, with US$7.85m in funding from UK Research and Innovation. Tarmac will grind the clinker from the project’s trial melts for testing in order to obtain certification and specification as a usable cement product.

Netherlands: Finland-based Coolbrook has completed the first test phase of the large-scale pilot of its RotoDynamic Heater (RDH) at the Brightlands Chemelot Campus in Geleen, Netherlands. The engineering company says that this has validated the RDH’s technical pathway up to industrial heat generation at temperatures suitable for cement plants. By developing and launching the technology, Coolbrook says that it will rely on a ‘comprehensive partnership ecosystem,’ including market leaders in technology and industry. It says that the RDH has the potential to eliminate 2.4Bnt/yr of CO₂ emissions – 30% of global industrial CO₂ emissions and 7% of all global CO₂ emissions.

CEO Joonas Rauramo said “Sharing our partners’ and customers’ sense of urgency to achieve net zero, we take determined actions to execute our strategy and progress towards the commercial launch of our electric technology. We are proceeding with first commercial agreements, while continuing to build our organisation and supply chain for industrial scale operations.”

US: Prometheus Materials' microalgae-based biocement has demonstrated 12 times greater sound absorption than ordinary Portland cement (OPC). Prometheus Materials produces its biocement at ambient temperature, with no process CO₂ emissions.

Germany: The Ministry for Economic Affairs and Climate Action has approved funding for Holcim Deutschland's Höver cement plant carbon capture project. The test phase of the project is scheduled to commence in early 2024. Holcim Deutschland, together with project partners Cool Planet Technologies and Helmholtz-Zentrum Hereon, carried out preliminary testing in 2022. They reported 'positive' results in May 2022.

Plant manager Stephan Hinrichs said "The funding commitment from the federal government is great news for Holcim and our partners. We are doing real pioneering work for the entire cement industry, and look forward to the next step on our way to becoming a climate-neutral company."

Uzbekistan: United Cement Group subsidiary Qizilqumsement says that it has awarded contracts for the upgrade of Lines 1 and 2 at its Qizilqum cement plant in Navoiy Region. Uzbekistan Newsline has reported that the producer has completed testing to ascertain the lines' parameters of operation, fuel and energy consumption and output. This will inform its decisions, with a view to reducing the cost of clinker production.

Qizilqumsement is currently in the process of building the Qizilqum plant's new 767,000t/yr Line 4, which will also increase its clinker capacity by 657,000t/yr. The producer expects this to lower the cost of its clinker production by 30%.

Bolivia: Empresa Publica Productiva Cementos de Bolivia (ECEBOL) now expects to commission its upcoming 1.3Mt/yr Potosí cement plant in June 2023. It would then begin selling bagged cement from November 2023 onwards. The La Razón newspaper has reported that ECEBOL has recorded 'physical progress' on the project of 92%, and executed US$264m-worth (85%) of a total planned investment of US$311m.

ECEBOL ran successful empty tests on installed equipment earlier in March 2023. Government representatives and local stakeholders will visit the plant on 30 March 2023.