Displaying items by tag: low carbon cement

Greece: Titan Cement has recorded sales of Euro1.26bn in the first nine months of 2021, up by 5% year-on-year from Euro1.2bn in the first nine months of 2020. Its earnings before interest, taxation, depreciation and amortisation (EBITDA) fell by 4.3% to Euro220m from Euro229m, while its net profit rose by 41% to Euro81.9m from Euro58m.

During the third quarter of 2021, Titan Cement’s US low-carbon cement sales reached 50% of its total US cement sales. It also continued with hydrogen enrichment pilot studies in its cement kilns in Bulgaria and Greece.

Croatia: Holcim Croatia plans to invest Euro1.28m to upgrade the dosing equipment of its Koromačno cement plant’s kiln line. The planned upgrade will enable the line to increase the proportion of alternative materials used in its cement production, thus equipping the plant for low-carbon cement production. Innovation Norway has granted the producer Euro441,000 towards the cost of the project.

Managing director Nikola Kovačević said “Mineral admixtures in cement have a threefold benefit: on the one hand, different characteristics are created in the cement to meet the requirements of different types of construction; on the other hand, the exploitation of natural resources decreases. Thirdly, the carbon footprint of the cement is thus reduced through the lowering of the clinker factor.”

Poland/US: Holcim has announced two new acquisitions in the area of raw materials and aggregates. In Poland, it has acquired granulated calcium carbonate producer Polcalc. The company employs 78 people. In the US, the group has acquired Utah-baed Utelite. The company produces lightweight aggregates and employs 40 people.

CEO Jan Jenisch said “We are pleased to welcome the employees of Utelite and Polcalc and look forward to their experience and capabilities. These two bolt-on acquisitions strengthen our presence in two important growth markets while contributing to Holcim’s overall strategy to expand our range of low-carbon products and solutions.”

Germany/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.’

Holcim 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.

For more information on low CO₂ cement production read our feature in the February 2021 issue of Global Cement Magazine

Australia: Calix has joined as a partner of the Heavy Industry Low-carbon Transition Cooperative Research Centre (HILT CRC). The initiative brings together heavy industry players, government and research and aims to boost the capability of Australian companies to remain globally competitive by capitalising on existing mineral and renewable energy resources to become international producers and exporters of low-carbon products. HILT CRC has secured US$29m from the government. This joins funding of US$158m in direct and in-kind contributions from its partners over the last decade.

“It is a chance for us to demonstrate the technology developed for CO₂ mitigation in the production of cement and lime through our European LEILAC-1 and 2 projects in an Australian setting, as well as explore other more sustainable applications for our technology in heavy industry, backed by this impressive team of researchers and industrial participants," said Calix’s managing director Phil Hodgson.

As part of the HILT CRC, Calix will continue to develop its technology for the reduction of carbon emissions from lime and cement production, and also use its Calix Flash Calciner (CFC) technology to develop other more processing applications such as for bauxite processing for the aluminium industry and production of calcined clay from kaolinite for use in new lower carbon cements.

HILT CRC’s core industrial partners include Adbri, Alcoa, Boral, Fortescue, Grange Resources, Liberty, Roy Hill and South32. The initiative has its headquarters in Adelaide and it plans to establish hubs in heavy industry regions of Gladstone, the Pilbara, Northern Tasmania, South Australia’s Upper Spencer Gulf, Western Australia's Kwinana and South West regions, the Southern Highlands of Nnew South Wales and Portland in Victoria.

France: LafargeHolcim subsidiary Lafarge France has completed the renovation of its 70m³/hr Larrieu concrete plant in Toulouse, Haute-Garonne Department. The renovated facility is equipped with six cement silos, two of which are dedicated to low-carbon cements for the production of ECOPact low-carbon concrete. It also has eight aggregate hoppers, including one dedicated to recycled concrete aggregates, and two mixer loading stations with forward truck access for safety. The total cost of the upgrade was Euro3m.

Haute-Garonne sector head Vincent Pelloquin praised the project’s speed and ability to rebuild the concrete plant in the middle of the coronavirus pandemic.

Lafarge France is presently engaged in a systematic modernisation of its concrete plants.

France: Hoffmann Green Cement Technologies has announced the signing of a supply contract with precast concrete structural engineers CAPREMIB. It says that the contract covers the supply of a minimum volume of low-carbon cement for the production of wooden concrete sound barriers for use in stadia and public spaces such as underground stations.

Co-founders Julien Blanchard and David Hoffman said, “We are delighted to have signed this contract with CAPREMIB, a highly innovative player in the construction sector. This partnership follows months of technical tests, and will allow the CAPREMIB group to produce wooden concrete acoustic screens with a lower carbon footprint. Combining wood and concrete in the manufacturing of this type of product meets market expectations and illustrates our ability to continually increase the growing number of applications for our technologies.”

Brazil: Norway-based Norsk Hydro and the Federal University of Para (UFPA) have announced their collaboration on the development of a low-carbon cement from bauxite residue from Norsk Hydro subsidiary Alunorte’s bauxite mining and alumina refining operations in the state of Pará. Electronic News has reported that the research partnership hopes to develop a new cement for commercial production and sale by 2030. This will use an estimated 500,000t/yr of waste bauxite residue.

Norsk Hydro bauxite and alumina research and development senior manager Erik Araujo said, “Hydro seeks to be a benchmark in sustainability in the aluminium industry. The research is an opportunity to promote intersectional advances in our environmental management, with a reduction in carbon emissions for the cement industry.

France: LafargeHolcim France says that it has “responded to the demand for low-carbon concretes” with the launch of a CEM-II Portland limestone cement product with 25% lower carbon dioxide (CO₂) emissions than Ordinary Portland Cements (OPC) in its Galaxim Planet range. The new addition to the range, of which LafargeHolcim plans to produce 100,000t by 31 December 2020, contains 35% limestone, up by 23% from 12% in ordinary Portland limestone cement.

LafargeHolcim France south region cement sales director Olivier Mespouilles said, “Our goal is to offer all builders a cement offering properties equivalent to a conventional cement with the advantage of a reduced carbon footprint. This tour de force was successful thanks to the involvement of all our teams, and we are the first player in France to offer this type of limestone cement in such a volume." The cement is due to enter the market in the Languedoc-Roussillon region. From 2021 the company hopes to supply 80% of customers there with the low-carbon cement.