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Displaying items by tag: Slag

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Cemex España to import 10,000t/yr of slag for Lloseta cement plant

21 June 2022

Spain: Cemex España has received clearance from the Balearic Islands Environmental Commission (CMAIB) to import up to 10,000t/yr of granulated blast furnace slag (GBFS) to Majorca. Ultima Hora Online News has reported that the producer will substitute some of the limestone used in the company's Lloseta plant's cement production with the material.

Waste management company Tirme previously handled the Lloseta cement plant's slag supply.

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Holcim North America invests in Blue Planet’s mineralisation technology

15 June 2022

Canada/US: Holcim North America has invested in Blue Planet to support the development and commercialisation of its mineralisation technology. Blue Planet’s process sequesters CO2 with building waste feedstock such as recycled concrete, cement kiln dust (CKD) and slag to produce new aggregate products. Each tonne of Blue Planet’s aggregate can mineralize up to 440kg of captured CO2. Lafarge Canada, Holcim US, and Blue Planet will start a multi-year collaboration to help identify potential to use the mineralisation technology to further lower the carbon footprint of the companies’ cement, aggregates and concrete operations, with the potential to expand to other operations in the Holcim Group around the world.

“This is an important step for us in North America. Our vision is to transform our St Constant Plant in Montreal into a carbon campus that ultimately advances commercialisation of mineralisation technologies, including Blue Planet’s products,” said David Redfern, president and chief executive officer, Lafarge Canada. “We look forward to advancing our Net Zero strategy by leveraging mineralization technology that allows us to use the CO2 from our own cement plants to produce carbon neutral or carbon negative sand and gravel products.”

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Vicem Hoàng Mai Cement targets US$79.2m in sales in 2022

07 April 2022

Vietnam: Vicem Hoàng Mai Cement has announced a full-year sales target of US$79.2m for 2022, down by 1.5% year-on-year from 2021 levels. Its target net profit for the year is US$656,000, more than five times its 2020 figure. The company forecasts cement production of 1.73Mt, up by 11% from 1.56Mt, and clinker production of 1.4Mt, down by 4.1% from 1.46Mt, for the year. It plans to replace 30 – 40% of the natural gypsum currently used in cement production with synthetic gypsum. It will also increase the proportion of ash and slag in its raw materials mix.

The Chúng Khoán newspaper has reported that Vicem Hoàng Mai Cement said that it is experiencing increased costs due to high raw materials and fossil fuel prices. A coal shortage has also disrupted production.

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Betolar plans to replace 10% of cement used in Finland with slag

25 March 2022

Finland: Betolar has signed a letter of intent with Australia-based RISAB and the Vanadium Recovery Project to research the use of steel slag from which vanadium has been extracted in concrete production. Dow Jones Institutional News has reported that the company says that, through it Geoprime alkali-activated additive technology, the new slag source could replace 10% of the cement used in concrete production in Finland.

CEO Matti Löppönen said "We see a huge opportunity for Betolar here. If successful, we would be able to offer our customers a specific, currently unused slag of the steel industry to replace cement in concrete. Our customers already have experience in utilising other types of slag in the production of concrete using Geoprime. Utilising new side streams will expand the reach of our solution as planned.”

Betolar launched Geoprime in September 2021. It is currently developing a recipe-optimising artificial intelligence (AI) and data platform to bring together concrete producers and suppliers of slag, ash and other materials.

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HeidelbergCement starts Neuclicem carbon capture and storage project in Spain

09 March 2022

Spain: HeidelbergCement is starting the Neuclicem carbon capture use and storage (CCUS) project at its integrated Arrigorriaga plant near Bilbao. Local electricity company Volbas and the Tecnalia Research & Innovation centre are participating in the initiative. The project intends to look at a process based on the mineralisation of alkaline waste, such as residual construction waste or steel slag, by accelerated carbonation using CO2 from the flue gas at the plant. The resulting materials will then be used as additives in cement production or to reduce the use of clinker. The scheme will study its viability of the process on an industrial scale.

The Neuclicem project has an estimated duration of 14 months. Its results are intended to prepare the way for scaling up to a subsequent industrial prototype. The project is partially financed by Ihobe, an environmental management division of the regional Basque government.

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Ash Grove re-opens upgraded Port Manatee terminal in Florida

09 February 2022

US: Ash Grove Cement has re-opened its Port Manatee terminal in Florida following the installation of a new Kovako type ship unloader supplied by FLSmidth. The machine was custom built for Ash Grove by the Denmark-based company to meet its specific needs. The cement producer says it is the largest mobile pneumatic ship unloader built, has twin 800hp blowers, 37m suction arm and can offload a dry bulk vessel at a high rate while maintaining maximum efficiency and minimising environmental impact by eliminating dust emissions.

A ribbon-cutting ceremony to celebrate the event was held on 7 February 2022 as a shipment of fly ash was processed at the site. This maiden shipment completes the Phase 1 transformation project at Port Manatee, which began in early 2021. The project is intended to improve the subsidiary of CRH’s capacity to import cement, slag and fly ash for customers in Florida and South Georgia. It is also planning to use the terminal’s existing silo capacity to complement the capabilities of Ash Grove’s cement plants in Sumterville and Branford.

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Birla Corporation starts kiln at Mukutban cement plant in Maharashtra

24 January 2022

India: Birla Corporation has started the kiln at its new 3.9Mt/yr Mukutban cement plant at Nagpur in Maharashtra. The project had an investment of around US$370m and the plant will be run by subsidiary RCCPL. Birla Corporation said that the new plant is the group’s fourth integrated plant and the biggest single cement production line in Maharashtra by capacity. It will be powered by two 20MW captive power plants that use air-cooled condenser technology to reduce water consumption by 90%. The plant was partly built using the group’s MP Birla Cement Perfect Plus product, a Portland Pozzolana Cement, composed of 30 - 35% fly ash, itself a by-product of thermal power plants. Use of fly ash and slag will be scaled up at the site as production ramps up.

“It is no mean feat to complete such a large project under such challenging circumstances with major disruptions on account of Covid-19 which led to several logistical challenges, stoppage of work and a flight of labour from the project site on several occasions,” said Harsh V Lodha, the chair of Birla Group. “Moreover, to achieve 10m man hours of construction with zero accidents and completion of the entire project without a single major accident or fatality, I am told, is a unique achievement in the cement industry.”

Published in Global Cement News
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Charah Solutions wins ash and boiler slag handling contract with Associated Electric Cooperative

04 November 2021

US: Charah Solutions has signed a contract with Associated Electric Cooperative (AECI) to receive bottom ash, fly ash and boiler slag from its Thomas Hill Energy Center coal-fired power plant in Missouri until 2026. Charah Solutions will recycle the by-products to produce supplementary cementitious products and redistribute these through its MultiSource materials network. The network consists of 40 locations across the US.

President and CEO Scott Sewell said "We are delighted to partner with AECI to manage their ash marketing needs at Thomas Hill while supplying our concrete producers with the high-quality material they need."

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Boral to pilot carbon capture and storage at Berrima Cement plant

06 October 2021

Australia: Boral plans to run a pilot scale carbon capture and storage unit at its integrated Berrima Cement plant in New South Wales. The project follows an allocation of a US$1.7m grant from the Australian Government’s carbon capture and utilisation and storage (CCUS) Development Fund in June 2021. The pilot intends to develop and test a re-carbonation strategy for CO2 storage. Captured CO2 will be stored in recycled concrete, masonry and steel slag aggregates. In its 2021 sustainability report, the buildings materials company said that, “The relatively low capital and operation costs, abundance of selected waste materials and the financial return potential due to the increased value of processed aggregates are key drivers for adoption of this technology.”

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Betolar launches Geoprime alkali-activated slag and fly ash additive

15 September 2021

Finland: Betolar has launched Geoprime, an alkali-activated additive for slag and fly ash used in concrete production. The company says that the product will enable concrete production from raw materials with 80% lower CO2 than ordinary Portland cement (OPC).It aims to meet the growing demand for sustainable and cost-effective construction materials. Geoprime enjoys fast global scaling potential thanks to Betolar’s intellectual property licensing business model, which enables the use of existing production facilities, according to the company.

Chief executive officer Matti Löppönen said “We have seen a massive shift in the concrete manufacturing and construction industries driven by investor pressure for environmental, social and governance data transparency and Net Zero commitments, and now people are keen to hear what we have to offer.”

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