US: Maschmeyer Concrete subsidiary Redwing Materials has appointed Gebr. Pfeiffer to build a slag grinding plant at Port Redwing in Tampa, Florida, according to S&P Global Commodity Insights. When operational in early 2027, the plant will produce ground granulated blast furnace slag to replace cement in concrete production. It will use Gebr. Pfeiffer’s ready2grind grinding system with a four-roller MVR vertical roller mill, designed to withstand Florida's coastal weather.
US: Heidelberg Materials North America has entered into an agreement to acquire Delaware-based Walan Specialty Construction Products. The company operates the 150,000t/yr Port of Wilmington slag grinding plant. Heidelberg Materials North America will integrate the business into its slag cement production operations.
South Korea: The Korea Ready-mixed Concrete Industry Cooperative Federation (KORMIC) has signed an agreement with steel producer POSCO and its decarbonisation division POSCO Eco & Challenge for the use of recycled steel by-products in ready-mixed concrete. The initiative will involve joint mix design reviews and other research and development projects by KORMIC members, with technical support from POSCO.
UK: The Graphene Engineering Innovation Centre (GEIC) has poured 15m³ of 49% reduced-CO₂ graphene-enhanced concrete at a Northumbrian Water wastewater treatment facility. The concrete, called Combining Micronised Limestone and Graphene (GEIC), features a ternary cement blend containing ground granulated blast furnace slag (GGBFS) and micronised limestone. The graphene-enhanced product achieved a 28-day compressive strength of 78.3N/mm², close to that of concrete produced using CEM-I cement. Eureka Magazine News has reported that the GEIC developed the formula at Cemex UK’s National Technical Centre in Long Itchington, Warwickshire. Cemex UK previously supplied its i-Con maturity monitoring system for a demonstration pour of GEIC concrete. Sika UK and construction firm Galliford Try also participated in the latest project.
