Displaying items by tag: Department of Transportation

US: Cemex has contested Boulder County's decision to terminate its right to operate the Lyons cement plant and is calling for the decision to be reversed, citing ‘significant’ implications for the state and local employment. The dispute follows a notice from the Boulder Country Community Planning office in April 2024, attributing increased traffic as the primary reason for the termination. The county and the Colorado Department of Transportation began investigating the plant in 2022, after residents of the area complained.

Cemex stated in its response to Boulder County "The Department's conclusion did not take into account the historical trucking of material to and from the Lyons cement plant, relying instead on a study Cemex voluntarily undertook for the Colorado Department of Transportation for a different purpose, and that considered only three days of traffic data in each of two consecutive years. The determination also failed to apply applicable precedent that a nonconforming use does not terminate when traffic occurring off-site changes."

The Community Planning and Permitting Director will now review the additional evidence brought forth by Cemex and issue an additional determination. Depending on the outcome, Cemex will have the option to appeal the decision to the Boulder County Board of Commissioners. The closing of the Lyons plant would lead to the loss of 100 jobs and only two cement plants remaining in Colorado.

US: The Portland Cement Association (PCA) has commended the Connecticut Department of Transportation's approval of Portland limestone cement (PLC), marking its acceptance in all US states and the District of Columbia. PLC, with increased limestone content, maintains traditional Portland cement's efficacy but reduces CO₂ emissions by up to 10%. The US avoided more than 4Mt of CO₂ emissions in 2023 by using PLC and other blended cements. This achievement coincides with growing cement consumption by state transportation departments, fuelled by the Bipartisan Infrastructure Law.

Mike Ireland, president and CEO of PCA, said "This milestone is a huge step forward for sustainable American construction. Switching to PLC promises to save millions of tonnes of CO₂. Using a lower-emission product that meets all the performance requirements of traditional cement means the construction sector can build with durability, safety and sustainability in mind."

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: Martin Marietta Materials recorded revenues of US$4.68bn throughout the first nine months of 2022, up by 20% year-on-year from US$3.92bn. Cement sales contributed US$455m, 9.7% of total revenues, up by 27% from US$358m. Cost of revenues rose by 4% for the group, to US$3.62bn from US$2.92bn. Nonetheless, Martin Marietta Materials successfully recorded nine-month net earnings growth of 25% year-on-year, to US$638m from US$546m.

Chair and CEO Ward Nye said that double-digit price growth drove the company's record profitability. He said "Importantly, we expect a return to expanding margins in the fourth quarter of 2022, as the compounding effect of multiple pricing actions throughout the year offsets continued inflationary pressure and a slowdown in single-family residential construction. Martin Marietta's strategic coast-to-coast footprint is well positioned for long-term growth, driven by favourable population migration trends, housing shortages in our markets and a long-term federal highway bill complemented by healthy Department of Transportation budgets in the company's key states. Near-term, we expect affordability-driven headwinds in the single-family residential end market will be offset by a significant acceleration in public infrastructure investment and continued strength in large-scale energy, domestic manufacturing and multi-family residential projects."

US: Hawaii’s Department of Transportation plans to use carbon-injected concrete for its new projects. This will include a new structure to protect a highway tunnel from rockfalls, according to Reuters. The Department of Transportation was testing CO₂-injected concrete on an access road project with CarbonCure Technologies in May 2019. The latest decision follows a resolution by state legislators that city administrators ‘consider’ using CO₂-injected concrete in city and county infrastructure where concrete is used.

In late June 2019 CarbonCure announced that its had formed a partnership with HC&D Ready Mix, a local concrete producer, to use its CO₂-injected concrete process. It is the second deal with a concrete producer in the state that CarbonCure has arranged.