Displaying items by tag: Sustainability

Australia: The Ministry of Climate Change, Energy, the Environment and Water is holding a consultation over the possible implementation of a Cross-Border Adjustment Mechanism to penalise imported cement for its CO₂ emissions in line with the Australian cement industry’s emissions reduction goals. The Guardian Australia newspaper has reported that the government expects to publish its report on the policy in mid-late 2024. The government began implementing new CO₂ emissions limits for Australia’s 200 largest industrial emitters in July 2023. It expects these to eliminate 200Mt-worth of CO₂ emissions over the period up to 2030. Climate Change and Energy Minister Chris Bowen said “80% of these companies, and 86% of covered emissions, are covered by corporate net zero commitments.” Australia is committed to net zero CO₂ emissions by 2050.

With regard to the proposed Cross-Border Adjustment Mechanism, Bowen said “It’s a potentially important mechanism to ensure domestic sovereign capability and supply. One of the biggest challenges we face is supply-chain crunches, and any measure which helps us deal with that is a positive thing for the transition.”

Spain: Switzerland-based Synhelion and Cemex España plan to build a new clinker plant near Madrid. The plant will use Synhelion’s synthetic fuel to produce clinker from clay and crushed sand at 1200°C. The fuel consists of a gas produced from green hydrogen and captured CO₂, using solar heat. La Tribune de Genève Online News has reported that Synhelion’s thermochemical reactor further helps to capture CO₂ emissions from clinker production. A study by the Swiss Federal Institute of Technology Lausanne indicated that this can halve the cost of carbon capture at cement plants, to below Euro85/t.

Canada: Lafarge Canada says that it successfully integrated 10,000t of recycled concrete waste in cement production at its St. Constant cement plant in Quebec using its ECOCycle Technology process. The year-long production trial constituted the first phase of Lafarge Canada’s pilot of ECOCycle Technology. The producer says that the achievement solidifies its leading position in North American circular construction innovation. Waste360 News has reported that concrete constitutes 4Mt (40%) of Canada’s 10Mt annual generation of construction and demolition waste.

President and CEO David Redfern said “By reusing construction and demolition wastes in the production of new building materials, we are reducing waste sent to landfill. Across Lafarge Canada, we’re evaluating any opportunity to decarbonise our operations, and circularity is part of this effort. This pilot is critical to demonstrate that we can effectively repurpose concrete waste, which goes a long way to conserve our naturally occurring resources and loops in construction sustainability - building new from old.”

Colombia: Holcim (Colombia) says that it has achieved 100% coverage of its cement and concrete range with environmental product declarations (EPDs).

CEO Marco Maccarelli said "This is in line with our global commitment to be a zero carbon company, and a vision of what we can contribute to sustainable construction in Colombia and the world.” He added "We want this new step we are taking to not only have a positive impact on the work of our customers, but also to contribute to sustainable construction, to obtaining environmental certifications for buildings and to inspiring the entire industry to work towards a more sustainable world today and in the future."

Thailand: Siam Cement Group (SCG) recorded sales of US$7.22bn in the first half of 2023, down by 17% year-on-year from US$8.69bn. Cement and building materials accounted for US$2.6bn (36%) of sales, behind chemicals at US$2.74bn (38%). The company's earnings before interest, taxation, depreciation and amortisation (EBITDA) dropped by 24% to US$915m from US$1.21bn. Meanwhile, its profit excluding extra items dropped by 49% to US$279m from US$543m. Cement and building materials contributed 78.5m (28%) of group profit, down by 38% from US$126m (23%).

During the first half of 2023, sales of alternative CEM-I and CEM-II cement rose above 50% of SCG's cement sales for the first time, compared to 41% throughout 2022. The group substituted 22% of all cement fuel with alternative fuel (AF) across its operations, and 22% of cement fuel in its Thai domestic business. SCG invested US$91.5m in capital expenditure in its cement and building materials business throughout the first half of 2023.

Australia: James Hardie has published its Sustainability Report 2023, recording its progress towards achieving its sustainability goals up to the end of the 2023 financial year on 31 March 2023. The producer's Scope 1 and 2 CO₂ emissions dropped by 26% compared to 2019 levels, against a new target of a 42% drop by 2030. Environmental product declarations (EPDs) covered 94% of its sales, ahead of a target for the year of 80%. The company launched a new goal to include 30% minority-identified people in its US management.

Chief sustainability officer and vice president, environmental social and governance, Jill Kolling said “Sustainability is a continuous journey, but a necessary one to drive value for our stakeholders, while delivering on our ambition to be a more resilient company. From our boardroom to our manufacturing plants, we are giving sustainability a place at the table to drive meaningful impact and instill accountability across all facets of our organisation.”

Sweden: CemVision has reported the successful conclusion of a large-scale production pilot of its ultra low carbon alternative clinker. CemVision produces the clinker using up to 100% recycled industrial secondary materials from the steel and mining sectors. CemVision says that its production process heats the raw materials using renewable electricity, and without the use of fossil fuels. The alternative clinker offers CO₂ reductions of up to 100% compared with ordinary Portland cement (OPC) clinker. CemVision has opened an invitation to possible collaborators to help scale up production, with a target of hundreds of thousands of tonnes per year.

Chief technical officer Claes Kollberg said "We are a climate-first company, making high performance cement. With our competence and experience, it is our duty to produce the most environmentally friendly cement for each application."

Mexico/Switzerland: Cemex and industrial solar heat specialist Synhelion have achieved constant clinker production on an industrially viable scale using only solar heat. The partners say that this confirms the technology's potential for industrial-scale implementation.

Cemex chief executive officer Fernando A González said “I am convinced we are getting closer to the technologies that will enable net-zero CO₂ cement and concrete production. The solid progress I see here proves that solar cement is not just a dream: it is achievable through continued collaboration, and backed up by rigorous research and testing.”

Australia: Alternative cement and concrete producers have welcomed a new Australian civil engineering standard that allows builders to use reduced-CO₂ geopolymer concrete in infrastructure projects. Wagners, which produces Earth Friendly Concrete (EFC), said that the revision has removed on if its key barriers to wider market acceptance. EFC replaces 100% of cement with supplementary cementitious materials, including ground granulated blast furnace slag (GGBFS) and pulverised fly ash, by virtue of its binder technology. Wagners previously supplied EFC for the London Power Tunnels project in the UK, based on local technical approval-based building codes. The producer now expects a new standard like the Australian one to follow in the EU.

India: UltraTech Cement has concluded an agreement to buy a 26% stake in renewable power provider VEH Radiant Energy. UltraTech Cement says that VEH Radiant Energy will help it to increase its reliance on renewable power in its operations.