Displaying items by tag: circular economy
Australia: Hallett Group plans to establish a slag cement grinding plant in Port Augusta, South Australia. Magnet News has reported the cost of the project as US$83.9m, towards which the producer has received US$13.4m in government funding. The plant will produce cement using South Australian ground granulated blast furnace slag (GGBFS) from Nyrstar’s Port Pirie and Liberty Primary Steel’s Whyalla steel refineries and fly ash from the site of the former Port Augusta power plant. Its operations will be 100% renewably powered. An accompanying new distribution facility at Port Adelaide will ship the cement to markets. The project will create 50 new jobs.
When the Port Augusta grinding plant becomes operational in 2023, its products will reduce regional CO2 emissions by 300,000t/yr, subsequently rising to 1Mt/yr, according to the company’s expansion plans.
Hallett Group chief executive officer Kane Salisbury said "We're talking about 1% of the entire country's 2030 [CO2 reduction] commitment, delivered through this project." Salisbury added "We're looking at turning South Australia into a global leader in manufacturing green cement."
UK: Aggregate Industries and Coomtech have partnered to develop low-energy kinetic drying technology for pulverised fuel ash (PFA) from power plant. The partnership will see Aggregate Industries use Coomtech’s kinetic dryers in its PFA processing, as part of its effort towards increasing the volume of waste materials incorporated in its products to 3Mt/yr from 1.5Mt/yr by 2025. The project has attracted funding from the UK government Department of Business, Energy and Industrial Strategy (BEIS).
Chief commercial officer Chris Every said “We’re delighted to have the support of Aggregate Industries in this grant project. Coomtech is especially pleased to have the business’ ongoing technical and commercial input to the project operation and analysis of performance. In addition, the opportunity to work together with a brand that is leading the way in creating new materials that will prove fundamental to the future of the construction sector and meet net zero objectives.” Every continued “The added benefit of our new drying technology is its flexibility - providing the potential to dry a wide range of materials being considered to aid the greening of the cement industry, including limestone, ground blast furnace slag (GBFS), natural pozzolans and other crushed and milled minerals that can offer an activated character to combine in cement and concrete mixes.”
Holcim acquires Teko Mining Serbia
12 July 2022Serbia: Holcim has acquired aggregates producer Teko Mining Serbia. Teko Mining Serbia’s aggregates sales were 2.4Mt in 2021. It employs 150 people across its quarries in Batocina, Ceramide, Ladne Vode and Ljubovija.
Holcim’s Europe, Middle East and Africa regional head Miljan Gutovic said “Teko complements our existing cement and concrete operations perfectly, allowing us to add aggregates and asphalt as part of our integrated offer in this highly dynamic market. I look forward to welcoming the employees of Teko Mining, whose expertise will be invaluable in accelerating our growth, especially in the highly dynamic Serbian market, and will enable us to develop circular solutions to recycle construction and demolition waste in the future.”
France: Hoffmann Green Cement Technologies has acquired ABC Broyage, which operates a slag grinding plant in North Dordogne. The producer says that ABC Broyage will import granulated blast furnace slag (GBFS) via La Rochelle and supply ground GBFS to its H1 and H2 green cement plants in Bournezeau. This will give Hoffmann Green Cement Technologies self-sufficiency in its raw materials processing.
Co-founders Julien Blanchard and David Hoffmann said “Managing our supply chain has always been one of Hoffmann Green's strategic priorities. After securing our supplies of co-products and their storage, we are now focusing on optimising their processing through the acquisition of ABC Broyage and the development of vertical integration.” Blanchard and Hoffmann noted that, besides strengthening the company’s control over its raw materials supply, ABC Broyage’s slag grinding capacity also secures its margins in the ‘current highly inflationary context.’
India: Three new Indian concrete companies have separately secured agreements for the use of Finland-based Betolar’s Geoprime alkali-activated slag and fly ash additive. Reuters News has reported that the companies are Balaiji Cement Products, Shiv Tiles and SNEH Precast. Engineering company Godrej & Boyce has also signed a letter of intent with the supplier for pilot production of concrete blocks, paving slabs and other elements.
Betolar expects producers to achieve global concrete production volumes of 250,000t/yr of concrete containing Geoprime by 2023.
Indonesia: The Indonesia Ministry of Environment & Forestry and the provincial government of Aceh have awarded Solusi Bangun Indonesia’s Andalas cement plant a Green PROPER rating. Green is the highest rating in the PROPER awards scheme, which assesses businesses’ environmental and social impacts.
In June 2022, Solusi Bangun Indonesia won the Sustainable Business Awards 2022 award in the category Global Initiatives for Significant Achievement in Sustainability Strategy. The group says that its focus remains on providing sustainable solutions, managing its climate impact, developing the circular economy, preserving water, protecting nature and supporting people and communities.
Canada: Holcim has announced its acquisition of Mathers Group’s quarry and asphalt assets in Quebec. The group says that the acquisition will accelerate its development of local circular construction practices by expanding its recycled concrete offering.
Germany: HeidelbergCement has joined EPEA’s Heidelberg Circular City Building Material Registry pilot project. The initiative uses EMEA’s Urban Mining Screening digital registry, which is able to estimate the composition of buildings based on building data. HeidelbergCement says that it will enable it to source construction and demolition waste for circular economic use in building materials production. This will support its ReConcrete 360° recycled concrete CO2 reincorporation project, among other projects. The initiative will turn Heidelberg into Europe’s first Circular City.
“Full circular economy and sustainable construction are central elements of our climate strategy,” said HeidelbergCement chair Dominik von Achten. “We are focusing on the life cycle assessment of our product concrete, including the processing of demolished concrete, and returning it to the construction cycle. By 2030, we want to offer circular alternatives for half of our concrete products.” Von Achten concluded “Together with the city of Heidelberg, also a pioneer in the area of climate protection, we want to use the Circular City project to demonstrate the enormous potential of concrete recycling for future urban construction.”
UK: Karbonite UK has developed a new supplementary cementitious material consisting of mineral feedstock, geopolymers and waste biomass. The process also involves CO2 sequestration and liquid-infused CO2 absorption within the mineral structure. The material, called Karbonite, is activated at 750 – 850°C, releasing water, which is captured for recycling. Its CO2 emissions are 2.7kg/t, according to Karbonite UK. The developer says that Karbonite ground with 50% clinker yields a cement of equal compressive strength to ordinary Portland cement (OPC).
Karbonite UK is currently preparing a final report on the product for a major cement producer.
Managing director Rajeev Sood said “Karbonite offers a wealth of potential to an industry targeting net zero. We are excited to talk to cement and concrete producers about how they could integrate Karbonite technology into their existing process.”
Holcim France produces 100% recycled clinker
21 June 2022France: Holcim France has announced its successful industrial-scale production of the world's first 100% recycled clinker. The La Tribune newspaper has reported that the company's Altkirch, Alsace, cement plant produced the clinker. Holcim France chief executive officer Francois Petry said that the plant's team collaborated with researchers at the Holcim Innovation Center to develop a recipe that incorporated multiple waste streams, including mineral wastes and wood ash. The producer says that most of the waste materials were locally sourced.