Displaying items by tag: US

US: Novel concretes developer Greencraft has made a patent application for a new method of CO₂ mineralisation using a microporous material containing mineral oxides, like slag. Global Warming Focus News has reported that the method also works for natural hyaloclastite, bottom ash, fly ash, volcanic ash and lava.

Greencraft said that its method marks an ‘improvement’ in current techniques for sequestering CO₂ in alternative materials.

US: Taiheiyo Cement, through its subsidiary CalPortland Company (CPC), is set to expand its Stockton Terminal in Northern California by adding two new silos. This development aims to increase the terminal's capacity for receiving supplementary cementitious materials such as slag and fly ash. The new silos have a combined capacity of 51,900t.

US: St Marys Cement won three national awards at the Slag Cement in Sustainable Concrete Awards 2023. The producer won the awards for supplying its slag cement for the construction of Wixom Assembly Park in Wixom, Michigan; of 333 North Water in Milwaukee, Wisconsin, and of Excellerate Manufacturing in Appleton, Wisconsin.

US: Eagle Materials and Heidelberg Materials North America, through their joint venture Texas Lehigh Cement Company, are currently building a new slag cement plant in Houston, Texas. When operational, the plant will have a production capacity of 500,000t/yr. Texas Lehigh Cement Company expects it to enter operation later in mid-2024. The plant's production will supplement that of the company's existing Buda cement plant in Texas.

US: Heidelberg Materials North America have supplied slag and Portland cement for the construction of TSX Broadway in New York City. The construction involved advanced demolition and building techniques, utilising concrete's properties for strength and stiffness.

Stan Trella, Sales Manager Metro New York/Long Island at Heidelberg Materials North America, said "The use of slag cement was beneficial in multiple ways. Not only does slag cement optimise concrete’s strength, but it reduced the environmental impact of this high-profile venue by lowering the percentage of ordinary Portland cement in the mix."

US: The Department of Transportation has announced a US$5m initiative to investigate the use of steel slag in cement and concrete. This will take the form of a collaboration between the Department of Transportation and a selected US-based steel producer and university partner. The initiative seeks to reduce CO₂ emissions in the production of building materials. Prospective participants may view the grant opportunity here.

Transport secretary Pete Buttigieg said "We're proud to make this funding available to help develop the next generation of construction materials so that the future of our transport infrastructure is more resilient, more sustainable and made in America.”

Robert Hampshire, deputy assistant secretary for research and technology and chief science officer, said “This funding initiative will develop and advance innovative materials and technologies that support the nation’s goals to decarbonise the transportation sector by 2050, strengthen resilience of the nation’s transportation infrastructure, and address adverse environmental impacts created by the transportation system.”

US: Building materials producer Edwin C. Levy has applied for a permit to build and operate its planned Delray slag cement grinding plant in Detroit, Michigan. The company says that the plant will produce green alternative cement using granulated blast furnace slag (GBFS) supplied by local refinery operator Cleveland-Cliffs Steel.

Local press has reported that Edwin C. Levy director Reuben Maxbauer said “This facility is going to be something the community will be proud of.”

US: Heidelberg Materials North America and Levy Group of Companies signed a granulated blast furnace slag (GBFS) supply contract on 9 August 2023. Under the contract, Levy Group of Companies will supply Heidelberg Materials North America with 400,000t/yr of GBFS for use in its slag cement production. Deliveries will begin in early 2024. Heidelberg Materials North America says that it has upgraded its Speed cement plant in Indiana to increase the efficiency with which it grinds GBFS. Following the inauguration of its nearby 2.4Mt/yr Mitchell cement plant in June 2023, Heidelberg Materials North America plans to transition the 1Mt/yr to 100% speciality and slag cement production. Levy Group of Companies will supply the GBFS from steel industry sites in the Midwest Region.

Heidelberg Materials Midwest US president Axel Conrads said “Our agreement with the Levy Group of Companies to secure a consistent supply of slag granules will help us accelerate the transition of the Speed plant to slag cement production and better meet the increasing demand for more sustainable cement products in the growing Midwest market.”

US: Harsco Corporation has changed its name to Enviri Corporation. It says that the new name and brand identity reflect its transformation since the late 2010s into a company that provides services to manage, recycle and reuse waste and by-product materials across many industries. Its subsidiaries - Harsco Environmental, Clean Earth and Harsco Rail - will continue to operate under their existing names as divisions of Enviri.

Nick Grasberger, chair and chief executive officer of Enviri Corporation, said “As we considered where we are today, how our business has evolved and our commitment to the environment, it is important to have a name and brand identity that align with this image.”

US: Heidelberg Materials North America has inaugurated the Port Canaveral slag cement plant and terminal in Florida, following an expansion. MENAFN News has reported that the producer invested US$24m in the installation of a new roller press at the facility.

Heidelberg Materials North America said "Heidelberg Materials' investment in the Port Canaveral slag cement facility is reflective of our commitment to supporting sustainable and resilient construction projects in the state of Florida and throughout the country. It is also aligned with our goal to significantly reduce our carbon footprint by 2030 and another milestone in our overall strategy to grow our portfolio of more sustainable products, technologies and customer-focused solutions on the path to Net Zero."