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Dufferin attains premier certification for responsibly sourced aggregate

Sources: CRH Canada Group, Toronto; Cornerstone Standards Council, Woodbridge, Ontario; CP staff

Dufferin Aggregates’ Acton Quarry in Halton Hills, Ontario, is the first operation to receive Cornerstone Standards Council (CSC) certification as a supplier of responsibly sourced stone, sand and gravel. The certification stands to benefit internal and external customers of an integrated aggregates, ready mixed and construction entity long the Ontario flagship of Holcim (Canada), but now an Oldcastle Materials sister business under CRH Canada Group.

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OSHA probes fatality stemming from wood floor to concrete slab design change

Sources: Occupational Safety and Health Administration; CP staff

OSHA has proposed nearly $80,000 in fines for Great Southern Building Systems, LLC, Pearl River, La., for safety violations related to concrete formwork collapse during the reconstruction of a Hurricane Isaac-damaged restaurant in Kiln, Miss. Great Southern served as a subcontractor to Berthelot Design Systems, whose principal and sole employee, Gary Berthelot, was trapped and killed by falling concrete and debris while placing supports as slab pouring commenced above him.

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Missouri S&T sets annual concrete conference agenda

Source: Missouri University of Science and Technology, Rolla

The 2016 Missouri Concrete Conference, May 3-4 on the Rolla campus, will feature presentations covering steel or macro synthetic fibers in concrete; impact of air pollution control on fly ash; proper curing techniques and materials; soil stabilization and full-depth reclamation; new American Concrete Institute pavement construction guide; lithium silicate curing compound; floor slabs and toppings; practical applications of resistivity testing; the Super Air Meter; city and county pavement management programs; and, Missouri Department of Transportation bridge girder specifications.

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