Displaying items by tag: Slag cement

India: JSW Cement has launched CHD Waterguard, a water-repellent slag-based cement designed for the high-moisture conditions of southern India. The product uses ‘Turbo Gel’ Technology, which the company says ensures a polymer-enriched ‘hydration matrix’ for improved workability and compressive strength.

CEO Nilesh Narwekar said “The tropical climate of Southern India, with its intense humidity, coastal salt air and heavy monsoons, compromises the longevity of concrete structures. With CHD Waterguard, we’re offering a specialised solution that actively protects homes from seepage, dampness, salt corrosion and moisture-related damage.”

US: Ozinga has broken ground on a 1Mt/yr alternative cement grinding plant in East Chicago, Indiana. The plant is equipped with a Gebr. Pfeiffer MVR5300-C6 vertical roller mill. It will produce ASTM C989-compliant slag cement and other blended cements. When operational in 2026, it will be the largest of its kind in North America, and avoid 700,000t/yr of CO₂ emissions from conventional cement production. Its location offers strategic rail, road and shipping access to large markets in the US and Canada.

East Chicago Mayor Anthony Copeland welcomed an anticipated 150 new jobs resulting from construction and subsequent operations at the plant.

India: During the fourth quarter of the 2025 financial year (which ended on 31 March 2025), premium products constituted 16% of Shree Cement’s sales mix, up from 12% one year previously. During the period, the company further diversified its offering with the launch of two new premium cements, Bangur Marble Portland slag cement and Extra White Portland slag cement, in Bihar, Jharkhand and West Bengal. Both products are designed for maximum brightness and smoothness within their category of CEM-II Portland slag cements. The company says that its growing portfolio helped it to increase its full-year financial realisation per tonne by 5% year-on-year.

Business Today News has reported that managing director Neeraj Akhoury said "In the 2025 financial year, 74% of our cement output was blended, avoiding over 7.2Mt of CO₂ emissions."

Shree Cement crossed 60% consumption of energy from renewable sources in May 2025, Construction World News has reported. It has 582MW of installed renewable power capacity and is currently in the process of building a 1MW battery storage system at one of its cement plants in India.

Türkiye: Oyak Cement will convert Mill 3 at its Darıca integrated cement plant to a slag grinding unit, according to local press reports.

The company has submitted the project to the government and the environmental impact assessment process has reportedly begun. The US$252,000 investment will add 14 jobs. The modified facility will grind 1200t/day (360,000t/yr) of slag, along with 18,000t of limestone in its other mills.

US: Eco Material Technologies has announced the opening of the Blissville Rail Terminal in Queens, New York. The new terminal will enable Eco Material to distribute approximately 50,000t/yr of fly ash from its national network to support local infrastructure projects in the New York metro area. The terminal will utilise rail transportation to deliver fly ash and cementitious materials, which the company says can replace up to 25% of carbon-intensive Portland cement in standard concrete mixes, with Eco Material's technologies reportedly allowing for up to 100% replacement in select applications.

"The opening of the Blissville Terminal is a major step in our efforts to expand access to low-carbon cement alternatives in all major metro areas, " said Grant Quasha, CEO of Eco Material Technologies. "By strengthening our presence in New York, we can better serve future infrastructure projects with innovative materials that reduce reliance on traditional Portland cement and imported steel slag.”

Ireland: Ecocem has secured €4m in research funding as part of the European Innovation Council’s Pathfinder Challenges 2024 in order to optimise electric arc furnace (EAF) slag for low-carbon cement production. The four-year programme is funded by Horizon Europe and will explore ways to enhance EAF slag reactivity and its suitability as a supplementary cementitious material without compromising cement durability. The project was submitted to the Pathfinder Challenge 2 call: “Towards Cement and Concrete as a Carbon Sink.”

Corporate development executive director Eoin Condren said “For many years, we have been pioneering the use of a range of slags and cementitious materials to create scalable and durable low-carbon cement. Thanks to this grant, we will continue our groundbreaking work as the steel industry transitions to new manufacturing processes, delivering a viable solution for a new generation of waste from steel.”

Indonesia: Suvo Strategic Minerals has reached a non-binding agreement to form a joint venture (JV) with PT Huadi Bantaeng Industry Park (PT HBIP) to commercialise and manufacture low-carbon cement and concrete products that contains nickel slag and other byproducts. The JV will produce geopolymer cement and related products in Indonesia.

PT HBIP will supply nickel slag and other raw materials from its stockpiles at Bantaeng Industry Park and provide infrastructure, including land, port facilities and utilities like power and water. Suvo’s subsidiary, Climate Tech Cement, will deliver the low carbon cement formulations.

Aaron Banks, Suvo’s executive chair, said “The formation of this partnership is a key milestone for the company as it adds significant scale for potential future operations. The consumption of Portland cement within the broader region is around 300 - 400Mt/yr. Huadi, in alliance with other smelters, produce around 15Mt/yr of nickel slag. This partnership has the potential to lock in the necessary supply chains and give the company the best chance for success in delivering this low carbon cement to market.”

Banks also confirmed that Suvo has started preliminary offtake discussions for its low carbon cement product with ‘large users’ in Indonesia and Southeast Asia.

India: Jindal Panther Cement (JPC), part of the Jindal Group, has commissioned its first cement grinding unit with a capacity of 1.5Mt/yr at Angul, Odisha. The unit will use about 1Mt/yr of blast furnace slag from Jindal subsidiary Jindal Steel & Power’s (JSPL) nearby integrated steel plant, operating with the industry's lowest clinker factor as part of its decarbonisation strategy. The Angul grinding unit will produce low-carbon Portland slag and composite cement for central and eastern India, repurposing waste from JSPL's operations and aligning with the group's decarbonisation goals. In the future, JPC plans to increase production capacity at both of its facilities, Angul and Raigarh, to 7Mt/yr, with an investment of US$257m.

CEO of JPC, Rohit Vohra, said "The commissioning of our Angul grinding unit marks a significant step in our journey towards a sustainable future. Our low-carbon cement and innovative distribution model position us uniquely to support eastern India's infrastructure growth while contributing to a greener planet."

Indonesia: Suvo Strategic Minerals has reported successful laboratory tests in collaboration with Makassar State University (UNM) in Indonesia, transforming nickel slag into a ‘high-strength, low-cost and low-carbon’ cement, according to The Sydney Morning Herald. The trials used slag from PT Huadi Nickel-Alloy Indonesia's operations in South Sulawesi, achieving a compressive strength of 37.5MPa after seven days. The company is now looking to conduct further testing and will provide the results to PT Huadi, with the aim of forming a partnership for the commercialisation of low-carbon cement using nickel slag.

Aaron Bank, executive chair of Suvo Strategic Minerals, said “We are excited to have commenced this workstream in Indonesia testing the byproduct of one of the country’s largest mining companies, with our ultimate goal being to manufacture an environmentally-friendly and low-carbon alternative to Portland cement. Achieving up to 37.5MPa after only seven days is an outstanding first round trial result for the company and could provide an entry into a large industry.”

US: Ireland-based Ecocem has appointed Mike Donovan as Technical Director for its US business operations. He will be responsible for overseeing key aspects of Ecocem’s business in the US, with a focus on widespread commercial adoption of the company’s low-carbon cement technologies, including ACT, by the US market.

Donovan most recently developed and brought a new natural pozzolan to market with Geofortis. He started his career in concrete in the 1980s working at companies including as Sherman Industries, Blue Circle Cement Tarmac and Central Concrete Supply (US Concrete). He is a graduate in civil engineering from the University of Texas at Austin.