Displaying items by tag: Research
Ecocem opens Centre of Excellence in Paris
20 October 2021France: Ireland-based Ecocem has opened its new innovation centre, the Centre of Excellence, in Paris. The purpose of the facility is to help to accelerate the development of new technology for the decarbonisation of the cement and construction industries. Ecocem's innovation team will use it for industrial-scale trials in collaboration with industry and academic partners, including Paris-Saclay University and The University of Toulouse. It says that it hopes that one outcome will be the further developmentof the Ecocem reduced-CO2 product range. Breakthrough Energy Ventures provided funding towards the centre's construction.
Ecocem innovation director Laurent Frouin said “Ecocem is committed to the deep and rapid decarbonisation of the global cement industry. It is essential for the planet and future generations, and it can be achieved through innovation and technology." He added “The cement and construction industries are developing and deploying a range of emission reduction technologies – Ecocem and our new Centre of Excellence will add a further dimension to these efforts.”
LafargeHolcim US collaborates with ECOncrete Tech on offshore wind turbine foundation scour protection unit development
15 October 2021US: LafargeHolcim US and ECOncrete Tech have launched a research and development collaboration to design and manufacture a fully structural concrete scour protection unit for offshore wind turbines. The unit’s specifications include seabed stabilisation and promotion of the growth of marine organisms. The collaboration includes a large-scale pilot project to evaluate the ecological performance of units in an offshore environment. The US/Canada Binational Industrial Research and Development (BIRD) Energy programme are funding the project, which will conclude in May 2024.
LafargeHolcim US commercial excellence vice president Josep Maset said “There are many paths to achieving our net zero commitment, and most require innovative partnerships and out-of-the-box thinking. The work we’re doing with ECOncrete Tech is a notable example of searching for solutions that enable increased use of renewable energy in an environmentally responsible way.”
Finland: The VTT Technical Research Centre of Finland and Finnsementti have revealed work on the Decarbonate project to test a 12m electrically-heated rotary kiln. Other partners on the initiative included Nordkalk and UPM. Precalcination was tested as well as the projection of quick lime. The eventual goal is to use electricity from renewable sources to power the kiln and then capture the CO2 released for utilisation.
The Decarbonate project has been exploring CO2 capture and utilisation concepts that can be commercialised. It has run for two years since late 2019 and has funding of Euro1.2m. It has also looked at oxyfuel and electrolysis experiments.
Hoffmann Green Cement Technologies renews strategic partnership with Scientific and Technical Centre for Building
06 October 2021France: Hoffmann Green Cement Technologies has renewed its strategic partnership with research and testing organization Scientific and Technical Centre for Building (CSTB). CSTB has provided Hoffmann Green Cement Technologies with certification for its clinker-free cements since 2017.It evaluates the products' performance, durability and safety.
The producer said "Hoffmann Green Cement's research and development strategy is to continually invest in the development of new low-carbon technologies. The signing of this partnership agreement will allow the company to benefit over time from optimised deadlines in the processing of its files for the evaluation of its current and future technologies."
Joint study at Martin Luther University Halle-Wittenberg and Federal University of Pará develops reduced-CO2 cement alternative
01 September 2021Germany/Brazil: Researchers at the Martin Luther University Halle-Wittenberg in Saxony-Anhalt and the University of Pará in Pará have produced a cement alternative with 66% reduced CO2 emissions. A type of calcium sulphoaluminate cement, it replaces up to 60% of limestone in clinker with overburden from bauxite mining. Researchers demonstrated that the resulting product conforms to all standards for commercial Ordinary Portland Cement. The results of the research have been published in ‘Sustainable Materials and Technologies.’
Cemex joins research consortium
20 August 2021Mexico: Cemex has announced that it will join forces with the National Autonomous University of Mexico (UNAM) and Tecnológico de Monterrey (TEM) to promote Research and Development projects focused on ‘solving the company's current needs to offer more value to its customers, suppliers and stakeholders.’ Cemex has joined the Consortium for Research, Technology Transfer and Entrepreneurship UNAM - TEC through the signing of a ‘’ memorandum of understanding’ that took place on 19 August 2021.
"Cemex recognises the value and capacity of UNAM and TEM for the development of research,” said Ricardo Naya, President of Cemex Mexico. “We are convinced that by joining the Consortium we are taking an important step towards solving the real and current challenges we face as a company. This alliance will help us accelerate our innovation projects, such as the Future in Action program, with which we seek to achieve carbon neutrality, among many other projects that we hope to promote with both academic institutions.”
Pakistan’s cement sector leads coal-related carbon emissions
02 August 2021Pakistan: Research by the Centre for Research on Energy and Clean Air (CREA) think tank shows that the cement sector was the largest national emitter of CO2 from coal in the financial year for 2018 – 2019. Coal was responsible for 19% of emissions in the reporting period. Cement comprised 49% of this followed by power generation at 28% and brick manufacture at 22%. The report looked at CO2 emissions from the Pakistan energy sector. It concluded that the cement industry was often missed out in discussions about carbon emissions in the country despite its high coal consumption and the number of new plants currently being planned.
Low carbon cements go global
28 July 2021Holcim has started to unify its low carbon cement product range this week with the launch of its ECOPlanet label globally. The products are already available in Germany, Romania, Canada, Switzerland, Spain, France and Italy. The plan is to extend this to 15 countries by the end of 2021 and then to double its ‘market presence’ by the end of 2022.
The headline news is that the range will include what Holcim says is the world’s first cement product with 20% recycled construction and demolition waste. This appears to be an improvement on the group’s Susteno cement products that use fine fractions from concrete and demolition waste. This product is currently sold in Switzerland where it is advertised as saving 10% of CO2 emissions compared to a standard cement product. Both Holcim and HeidelbergCement already sell concrete products that use the coarse waste from building demolition. Other than this, Holcim says that the range will also include cements that contain calcined clay. In June 2021 subsidiary Lafarge France announced that it would produce a cement product under the ECOPlanet banner using kaolin clay with its proprietary ProximA Tech process at its integrated La Malle cement plant in Bouc-Bel-Air.
We will have to wait and see how far Holcim goes in standardisng the range between different countries. Yet, judging from what the countries that are already selling ECOPlanet are doing, it looks like it will be a variety of blended cements. At present, for example, Holcim Germany offers four products in the ECOPlanet range. These are all slag cements, with three having effective CO2 reductions of up to 70% and the fourth, ECOPlanet Zero, reaching 100% through a carbon offsetting scheme in conjunction with MoorFutures. Holcim Italy also launched a product in the range called ECOPlanet Prime using calcined clay in June 2021.
Incidentally, LafargeHolcim US announced a research project this week with the US Army about using demolition waste. It’s going to start working with the US Army Corps of Engineers’ Engineer Research and Development Center and Geocycle to look at how construction and demolition materials from military installations can be used for energy recovery and mineral recycling. Group resources at Geocycle’s Holly Hill Research Center in South Carolina, US and Holcim’s Global Innovation Center in Lyon, France will be used in the scheme.
Other low carbon cement products are available of course. Holcim is far from alone in launching low CO2 cement and concrete products. Yet the use of worldwide brand names is different. Cemex is doing something similar with the global rollout of its Vertua concrete products. It first launched Vertua in France in 2018 before going global in 2020. Holcim started to launch ECOPact Concrete in 2019. Now, Holcim has gone further by doing the same thing with cement. Given how localised cement and concrete products are, it will be instructive to see how global branding for low carbon cementitious products helps these companies. For instance, who is the target audience? It could be eco-minded self-build customers or project specifiers or government departments or industry lobbyists. Or perhaps it is simply another marketing channel to reinforce the sector’s sustainable offerings.
The other point worth considering is when will the multinational cement producers start selling sustainable cements and concretes in less rich parts of the world? While Holcim was playing with blended cements and marketing this week, Dangote Cement said that it was ready to start commissioning its new 6Mt/yr integrated plant at Okpella, Edo State in Nigeria. Another 5Mt/yr plant is also on the way in the country from Madugu Cement. It has just signed a contract for China-based Sinoma International Engineering Company to build it. When Holcim and the other cement companies start selling low carbon cements in places like Nigeria then the rise of these products will be complete.
RHI Magnesita and Calix Limited start agreement on CO2 emissions reduction for refractory production
05 July 2021Austria/Australia: Refractory producer RHI Magnesita and Calix say they have started a memorandum of understanding to develop a flash calciner for use in the production of refractory materials, to enable CO2 separation for either utilisation or storage. The companies have agreed to run studies up to and including basic front-end engineering and design for a commercial-scale demonstration facility at an RHI Magnesita site.
RHI Magnesita and Calix started discussing a collaboration in early 2019. The application of Calix's technology to refractory products has been the subject of pilot scale test work during 2020, with larger scale test work currently underway.
Luis Bittencourt, chief technology officer of RHI Magnesita said, "We are pleased to be working with Calix on this project, which is a key part of the research and development programme on CO2 emissions reduction that we are carrying out over the next five years. Together with our partners at Calix, we are seeking to develop new technologies for the capture, storage and utilisation of CO2 that would otherwise be emitted during the refractory production process." Phil Hodgson, the managing director of Calix added that the company was also looking at strategic opportunities in its magnesium oxide businesses.
India: Researchers at the Visvesvaraya National Institute of Technology in Nagpur, Maharashtra, have shown in laboratory studies that an enzyme called urease found in watermelon seeds can strengthen cementitious materials and repair cracks in concrete. The Times of India newspaper has reported that the study found around a 22% increase in compressive strength, a 19% reduction in water absorption and improvements in durability. It is hoped that the food industry waste product could potentially be used to replace chemical admixtures commonly used in concrete production. Field studies are now set to follow.
Study leader associate professor Madhuwanti Latkar said, “Watermelon seeds are magic beans when it comes to importing strength to cementitious materials.”