Displaying items by tag: Sustainability

France: Heidelberg Materials' subsidiary Ciments Calcia has laid the foundation stone for its construction of a Euro285m CO₂ emissions-reducing upgrade to its Airvault cement plant in Nouvelle-Aquitaine. Ciments Calcia first published its plans for the installation of a new 4000t/day production line to replace both existing lines at the Airvault plant in 2021, with commissioning scheduled for mid-2024.

Germany-based ThyssenKrupp secured the order to supply a 1200t/hr double-shaft hammer crusher, a longitudinal blending bed, a 370t/hr Quadropol QMR² 45/23 vertical roller mill, a 10,000t raw materials tangential blending silo, a single-string, five-stage Dopol cyclone preheater with integral calciner for alternative fuels (with the possibility of conversion to oxyfuel), a Polytrack clinker cooler, a solid recovered fuel preparation line and dedusting systems for the project.

New Zealand: Fletcher Building subsidiary Golden Bay Cement has co-processed 80,000t of waste in production of its EcoSure reduced-CO₂ general-purpose cement at its Golden Bay, Whangarei, cement plant. The plant has achieved a coal substitution rate of 50%. It has processed various waste streams, including 3 million used tyres. EcoSure cement generates CO₂ emissions of 699kg/t of product, 20% less than its imported alternatives, according to Golden Bay Cement. Fletcher building CEO Nick Traber said that this figure is 'simply our starting point.' The company's next target is to achieve a 30% CO₂ reduction by 2030.

Traber said "We needed to think outside the box, or rather the cement bag to be more precise. The challenge was around what enhancements we could make to our manufacturing processes at our Golden Bay cement works in order to improve the plant's sustainability. We quickly realised that consuming used tyres and wood waste as alternative fuels was a win-win. When we started with the idea in 2015, we were aiming to replace 15% of coal with end-of-life tyres. Fast forward to 2022, and our rate of coal substitution is now at 50%, which has obviously delivered further reductions in carbon emissions, as well as helping to offset increased coal costs."

Denmark: Nordic Investment Bank (NIB) has granted a 150m loan to FLSmidth to support technological developments for the growth of sustainability in the cement and mining sectors. The supplier said that the loan tracks three core sustainability indicators: FLSmidth's ratio of partners with SBTi-certified science-based targets, FLSmidth’s own Scope 1 and 2 CO₂ emissions and its products' Scope 3 impacts.

Chief financial officer Roland Andersen said “With our MissionZero pledge, we are fully committed to developing technologies and solutions that will enable the mining and cement industries to move towards zero emissions by 2030. As sustainability is an integral part of everything we do, it is only natural for us to also link our financing to our sustainability ambitions. This is a first step in this direction, and we are very pleased with the long-term commitment provided by NIB."

Australia/China: A Charles Sturt University team has found that the use of clay in soft soil foundation stabilisation can eliminate 40% of cement used in this type of construction. Australian Associated Press News has reported that China-based Kunming University of Science and Technology also supported the research.

India: Four UltraTech Cement cement products have received Environmental Product Declaration (EPD) certification. UltraTech Cement's ordinary Portland cement (OPC), Portland pozzolana cement (PPC), Portland slag cement (PSC) and Portland composite cement (PCC) all successfully underwent lifecycle assessment studies in line with EPD requirements.

The Aditya Birla subsidiary said that 70% of its cement sales consist of blended cement. It offers over 70 different GreenPro certified products across its range.

India: Finland-based Betolar has launched its first concrete products manufactured using Geoprime on the Indian market. Geoprime is an additive designed for use in cement-free concrete production with ash and ground granulated blast furnace slag (GGBFS). The new concrete product range consists of precast blocks, paving slabs and tiles, and is currently on display at World of Concrete India in Mumbai, Maharashtra.

Betolar's India managing director Abhishek Bhattacharya said "We are happy to introduce our first products to our customers for the Indian markets. We have now moved from laboratory tests into the production phase, and can show concretely how well this solution works. It is great to hear the feedback from the concrete industry in the region to our sustainable solution. Decarbonisation of the concrete industry is a very current and important topic."

UK: Denmark-based architecture fund Henrik Frode Obel Foundation has named Seratech as winner of its Obel Award 2022. The award recognises architectural contributions to global development. Seratech has developed an olivine-based composite cement produced using CO₂ from flue emissions, which can sequester double the CO₂ of ordinary Portland cement (OPC). When used as 40% of a blend with OPC, it is able to completely offset the emissions of concrete production.

Team member Barnaby Shanks said "The beauty of the idea is that you can just use it as normal concrete. There are other carbon-neutral materials, but they can be limiting because they can only be precast, cured in a lab in special conditions and shipped elsewhere. We want people to retain the freedom to use concrete the way that they are used to. We don’t want to limit people in any way because we’ll just lessen the amount of impact we can have."

Nigeria: The House of Assembly of the Nigerian parliament has ordered Dangote Cement to suspend its operations at the Obajana cement plant until the company presents 'credible evidence' of its acquisition of the plant from the government. The Premium Times newspaper has reported that the state and Dangote Cement concluded a deal for transfer of ownership of the plant in 2002. Kogi State Commissioner Kingsley Fanwo says that Dangote Cement has failed to show evidence of its payment for the asset.

Local people petitioned the state for an enquiry into the plant's legal status after it allegedly created industrial pollution 'bordering on' a hazard. Protestors have reportedly 'driven out' staff from the plant.

Finland: Energy provider St1 plans to establish a 25,000t/yr renewably powered synthetic methanol plant at Finnsementti's Lappeenranta cement plant in South Karelia. St1 hopes to develop a replicable and scalable synthetic methanol production concept at the site. When commissioned in 2026, the installation will create 20 jobs and produce synthetic methanol for use in maritime and road transport. The Finnish Ministry of Economic Affairs and Employment has granted Euro35.4m-worth of funding to the project.

US: Heliogen is among recipients of a total US$24m in US Department of Energy funding for solar thermal power projects. The department granted it US$4.1m-worth of funding for a project in which it will calcine limestone at 950°C using the heat of the Sun. Heliogen hopes to apply the methods it is developing to prevent the direct emissions of cement production.