In December, the U.S. Department of Labor’s Occupational Safety and Health Administration announced it was replacing traditional hardhats for its employees with ANSI-Z89.1-certified Type II safety helmets when they work on sites.
The U.S. Environmental Protection Agency has issued a final rule prohibiting ongoing uses of chrysotile asbestos, the only known form of asbestos currently imported, processed or distributed for use in the U.S.
Grant Quasha is the CEO of Eco Material, a leading producer and supplier of cement products using selective cementitious materials (SCMs) and other alternative material sources. The company has made significant investments in recent years to expand its supply of SCMs beyond traditional sources of waste materials produced by coal-fired power plants. Quasha spoke with ENR about the current and future prospects for alternative materials in the cement supply chain.