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Commercial prospects of cellulose-based admixture bear on California bridge

Researchers at Purdue University in West Lafayette, Ind., aim to move testing of a cellulose nanocrystal admixture from campus laboratories to a California concrete construction site this year. Derived from the world’s most common polymer, the nanocrystals strengthen concrete through a chemical reaction increasing cement particle hydration. They provide what Civil Engineering Professor Pablo Zavattieri characterizes as a rail or avenue for water to go where it is needed in the concrete matrix, especially unhydrated particles.

Read more: Commercial prospects of cellulose-based admixture bear on California bridge

Global, circular economy initiative draws BASF, CRH, LafargeHolcim

BASF AG and CRH Plc are among 30 companies joining the World Business Council for Sustainable Development’s Factor10. The initiative seeks to advance principles of the circular economy, where the “take-make-dispose” economic model yields to one that is regenerative by design. Charter companies span 16 major sectors and report combined annual sales of $1.3 trillion.

Read more: Global, circular economy initiative draws BASF, CRH, LafargeHolcim

‘Codes Save Lives’ to lead Building Safety Month takeaways

The authority overseeing the widely adopted International Building and International Residential Codes will mark the 38th annual Building Safety Month with an unmistakable message: “Building Codes Save Lives.” The International Code Council-led campaign is celebrated by jurisdictions worldwide during the month of May and raises awareness about the importance of current building codes and code officials’ role in creating safe, sustainable structures that communities can rely on for generations.

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HeidelbergCement exits Lehigh White partnership

Lehigh Hanson parent company HeidelbergCement AG is selling its 51 percent stake in Lehigh White Cement Co. to minority shareholders in a deal valued at about $140 million and scheduled for closing this quarter. Ownership of Lehigh White Cement, which has 280,000 tons capacity in York, Pa., and Waco, Texas, plants, will be split between Aalborg Cement Co. (63.25 percent), a North American business of Denmark-based Aalborg Portland Holding A/S, and Cemex Inc. (36.75 percent).

Read more: HeidelbergCement exits Lehigh White partnership

Builders warm to Genest Concrete’s Comfort Block

An insulated concrete masonry wall system, with block placed on adhesive or thin set mortar, was among finalists in the Best of IBS Awards/Most Innovative Building Products category, spotlighted last month during the National Association of Home Builders International Builders’ Show (IBS), Orlando. Developed by Sanford, Me., building and hardscape unit producer Genest Concrete, Comfort Block is offered in two- and four-piece versions, CB-8 and CB-16, for 8- or 16-in. thick walls.

Read more: Builders warm to Genest Concrete’s Comfort Block