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Construction, business groups firmly opposed to revised silica exposure rule

Sources: National Ready Mixed Concrete Association, Silver Spring, Md.; National Stone, Sand & Gravel Association, Alexandria, Va.; U.S. Chamber of Commerce, Washington, D.C.

After brief review of a 1,772-page document, NRMCA Compliance and Operations staff reports that concerns the industry voiced in 2013-14 with the Occupational Safety and Health Administration’s proposed Occupational Exposure to Respirable Crystalline Silica rule had carried to a final version. Ahead of compliance assistance materials to be prepared through the NRMCA Operations, Environmental and Safety Committee, staff will update members as the rule’s concrete plant-specific requirements are analyzed.

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OSHA sets 2017, 2018 compliance deadlines in final silica exposure rule

Sources: Occupational Safety and Health Administration; CP staff

As indicated in initial proposals to revise and harmonize respirable silica dust thresholds for general industry and construction worksites, OSHA maintains limits—25 and 50 micrograms per cubic meter of air, averaged over an eight-hour shift—for action levels and offering workers medical surveillance, respectively, in its final Occupational Exposure to Respirable Crystalline Silica rule.

Read more: OSHA sets 2017, 2018 compliance deadlines in final silica exposure rule

North American operations top 2015 performers in LafargeHolcim portfolio

Sources: LafargeHolcim Ltd., Zurich; CP staff

With $5.84 billion in cement, aggregate and ready mixed concrete sales, North America led five LafargeHolcim regions in 2015, besting overall figures from Asia Pacific, Europe, Latin America and Middle East Africa businesses.

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Ash Grove, Monarch principals define longevity on PCA 100-year timeline

Sources: Portland Cement Association, Skokie, Ill.; CP staff

Centennial anniversary observances during the 2016 PCA Spring Congress peaked with a March 14 reception at Chicago’s Renaissance Blackstone Hotel, where officials of Ash Grove Lime & Cement, Continental Portland Cement, Lehigh Portland Cement and 50 peer operators had assembled in 1916 to “raise the standard of concrete construction, improve the quality of concrete work, increase the quantity of cement used in established fields, and develop new fields.”

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Sika expands North American admixture, mortar production footprint

Sources: Sika AG, Baar, Switzerland; CP staff

Sika has opened a mortars and concrete admixtures plant in Vancouver, B.C.—the company’s fourth in Canada and 18th in North America—eyeing the Pacific Northwest market, especially the Vancouver, Seattle and Portland population centers. The facility is part of a NAFTA region supply chain strategy expanding production capacities in major cities and “conurbations.”

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