CRH, the international supplier of construction material, estimates $13.9 billion (about 40 percent) of its 2023 revenue came from products with "enhanced sustainability attributes." That includes products made from recycled or reclaimed materials, those produced using renewable energy or rainwater runoff, and its burgeoning line of stormwater management systems.
By the end of 2025, the company expects at least half of its revenue will come from products with these attributes, according to its 2023 sustainability report. CRH reported a 5 percent reduction in greenhouse gas emissions to 44 million metric tons. Its goal: a 30 percent cut by 2030.
The strategy is driving sales with customers such as Google who want to reduce their own carbon footprints.
CRH, headquartered in Dublin, Ireland, is the top North American seller of concrete, asphalt and aggregates such as crushed granite, limestone and sandstone. It is also the largest North American recycler of these materials.
"We’re tackling issues like lower-carbon solutions or circularity that … for many of our customers and value chains is proving to be very valuable," said CRH’s first chief sustainability officer, Eunice Heath, during the June 11 episode of the Climate Pioneer video interview series. "Our investors recognize that."
400 pilot projects
Heath joined CRH in January 2023 after a 30-year career with Dow Chemical. At last count, CRH was running more than 400 pilot projects linked to waste reuse, alternative materials and climate-resilient infrastructure, such as permeable roads or stormwater capture. The company supports a $250 million venture fund focused on commercializing the results.
"That requires us to think from a business perspective," said Heath, who reports to CRH’s chief operating officer. "We have global challenges, every value chain has its challenges. But then there’s also major opportunities, right, for us to drive change. And that takes understanding the key inputs that various functions have to ensure that we’re all aligned, and that we deliver on the ambitions we have as a company."
44 million metric tons of reclaimed materials
In addition, CRH used close to 44 million metric tons of recycled asphalt and shingles, construction and demolition debris, fly ash, soil and other industrial byproducts to cut its need for virgin materials by about 9 percent, according to the report.
CRH is also using lower-carbon alternatives for "clinker," the main ingredient in concrete production. Clinker is made by heating limestone to high temperatures, a process that releases CO2. Replacing limestone with recycled material helped one of CRH’s European divisions cut the carbon footprint of its concrete by 7
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