Displaying items by tag: US

US: SRM Concrete has borrowed US$300m as an add-on to its senior secured term loan. Moody's Investor Services reported that part of the funds will pay off SRM Concrete's US$130m seller note issued for its acquisition of USC Atlantic from Vulcan Materials in November 2022.

US: Prometheus Materials’ microalgae-based biocement has secured certification for use in concrete masonry unit (CMU) mixes. The cement now holds an ASTM C129 certificate for use in non-loadbearing CMUs and an ASTM C90 certificate for use in loadbearing CMUs. Prometheus Materials’ biocement produces concrete with comparable or superior mechanical, physical and thermal properties to ordinary Portland cement (OPC)-based concrete. It offers little-to-no CO₂ emissions and 95% of water used in production is recycled.

Prometheus Materials CEO Loren Burnett said “We are thrilled to have achieved these two foundational certifications as we proceed in full force with our goal of decarbonising construction. Prometheus Materials’ product is poised to change the future of construction, converting one of the most carbon-polluting industries to a low-carbon – and one day net-zero carbon – reality.”

US: Holcim US has announced the launch of its ECOPact reduced-CO₂ concrete in the Fargo, North Dakota, and Twin Cities, Minnesota, metropolitan areas. ECOPact products offer up to 80% reduced CO₂ emissions compared with ordinary Portland cement (OPC)-based concretes, and can also integrate construction and demolition waste. Holcim US has sold the ECOPact range in Boston, Massachusetts, and Washington DC since 2020.

Holcim US' North Central regional senior vice president Randy Gaworski said "With countless developments already in the pipeline, and so much on the horizon, engineers, architects and developers are driving demand to integrate sustainable building practices throughout the region. This is an exciting opportunity to offer our customers high-quality, low-carbon products for meeting our shared commitments to sustainability and net-zero construction."

US: CR Minerals has signed a contract with mining company Rio Tinto for the supply of mineral waste from the latter's subsidiary US Borax's boron mining operations in California. CR Minerals will use the waste to produce pozzolans to replace cement in local concrete production.

CR Minerals president Jeffrey Whidden said "We have been working with Rio Tinto for several years now to bring this concept to life. Taking what was once considered waste streams and turning them into usable products for the construction materials industry is part of the vision of our company."

US: The Global Cement and Concrete Association (GCCA) has signed an international partnership agreement with the American Concrete Institute (ACI). Under the agreement, the partners will collaboratively develop and disseminate information on concrete production and its use in construction, with a view to advancing best practices in sustainability.

The ACI said "ACI cooperates closely with our international partners, benefitting everyone in the global concrete community. ACI looks forward to working with the GCCA towards a future where everyone has the knowledge needed to use the latest concrete technologies effectively to meet the demands of a changing world."

US: Lehigh Hanson has acquired Washington-based concrete and asphalt recycling company JEV Recycling. The Heidelberg Materials subsidiary says that the acquisition strengthens its regional recycled materials portfolio, enabling it to increase its sustainable offering.

President and chief executive officer Chris Ward said “The acquisition of JEV Recycling represents an important step for Lehigh Hanson as we grow our business beyond cement and aggregates while working to lower our environmental footprint. It also highlights the importance of finding innovative ways to serve the growing needs of our customers for responsibly sourced and circular products so they can meet the sustainability targets of their projects.”

US: COBOD says that construction of the largest 3D printed building in the US using its 3D printing technology has commenced at a site in Houston, Texas. The building is the country’s first two-storey residential building constructed using the method. PERI handled the order for contractor CIVE and architect HANNAH.

CIVE president Hachem Domloj said “Having the opportunity to be the engineers and general contractor for the first two-storey 3D printed structure in the US has been an honour. We can see how this technology and our team’s approach is providing the scalability to larger commercial developments. Collectively, we're changing the way our country builds, and paving the way for more affordable housing, higher structural integrity and faster building capabilities. The possibilities of 3D printing are endless!”

US: Argos USA has invested US$40m in 200 new ready-mix concrete mixer trucks, as the first phase of a five-year fleet expansion and replacement plan. The company says that the vehicles have a useful life of 8 – 10 years, or 53,500m³. It expects to make its next truck purchases in early 2023.

Argos USA ready-mix president Richard Edwards said "With the acquisition of these new assets, we continue our dedication to delivering extraordinary solutions to customers, helping facilitate the progress and development of the cities and communities where we have a presence. Our new trucks have a capacity of around 7.5m³ of concrete, are approximately 15% more fuel efficient than our previous trucks, and result in lower atmospheric emissions. They are also vehicles with the latest safety equipment, to continue ensuring the safety of our employees and everyone we share the road with daily."

US: Switzerland-based Sika is starting up production at a new concrete admixtures plant at Stafford in Virginia that opened earlier in 2022. The 3950m² facility has a production capacity of 50,000t/yr and two mixers with a capacity greater than 27,000l each. The unit is intended to serve markets in the Northeast and Mid-Atlantic regions along with the company’s existing concrete admixtures plant at Fairless Hills in Philadelphia.

Christoph Ganz, Regional Manager Americas said "This investment allows us to significantly expand our production capacity while creating the best possible conditions for continued growth in the North American market. Our concrete admixtures satisfy the construction sector’s most demanding requirements and make it possible to produce higher-performance, resource-saving concrete. Sika admixtures enable the realisation of critical infrastructure projects, are used in state-of-the-art high-rise construction, and help increase sustainability in megacities."

UK: Concrene Limited has obtained a US patent for its Graphene Reinforced Concrete technology. The technology uses graphene dispersed in water to create a uniform distribution of graphene particles in concrete. Graphene increases the strength of concrete, enabling less cement to be used in its production.

Concrene Limited invited interested US stakeholders to discuss opportunities for commercial partnerships.