Respirable silica dust protection enters second phase


The Occupational Safety and Health Administration’s revised protection and monitoring requirements for respirable silica dust exposure in Construction and General Industry workplaces are set, with or without universal employer compliance. Robert Bosch Tool Corp. in Mt. Prospect, Ill., reminds producers and contractors working with concrete, stone or masonry materials of new OSHA requirements in this question & answer with Jim Bohn, director of Strategic Development – North America:

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Summit Materials enters lightweight aggregate through Buildex

Sources: Summit Materials Inc., Denver; CP staff

Summit Materials recently closed on Buildex Inc., Ottawa, Kan.-based proprietor of the Haydite brand of expanded shale lightweight aggregate. One of four businesses added during second quarter transactions totaling $75 million, Buildex spans two plants and 750,000 cubic yards’ capacity, and is strategic to sister cement, ready mixed, aggregate and asphalt operations in Great Plains and Intermountain states. Companion June-July deals brought Summit quarry and asphalt production assets in Olathe, Kan., plus Virginia and Texas aggregates producers Buckingham Slate and XIT. 

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The American Society for Concrete Contractors will hold its 17th annual conference September 20-23 at the Sheraton Charlotte Hotel, Charlotte, N.C. Concrete contractors, manufacturers, designers and other industry professionals will gather for three days of educational events and networking.

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LafargeHolcim has acquired Tarrant Concrete Co., which operates three ready mixed plants on two sites, and builds on a Dallas-Fort Worth Metroplex platform created under Holcim (US). With 90 employees and annual sales hovering $40 million, Tarrant Concrete becomes the first bolt-on transaction in domestic ready mixed production since the Aggregate Industries U.S. and Holcim (US) businesses, along with Lafarge North America, were brought under LafargeHolcim Ltd. in the 2015 Lafarge Group and Holcim Ltd. merger.

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