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Foundation guides industry to the next concrete pavement frontier

Sources: Ready Mixed Concrete Research & Education Foundation, Silver Spring, Md.; CP staff

Looking beyond roads, streets, parking lots and traditional flatwork, the RMC Research and Education Foundation’s latest publication responds to an emerging pavement market opportunity for ready mixed concrete producers. The 36-page Guide to Concrete Trails covers project background and funding; choice of concrete versus alternative paving materials; design and engineering; concrete mix designs, delivery and placement; paving machinery and slab finishing methods; plus, jointing, curing and maintenance. 

Read more: Foundation guides industry to the next concrete pavement frontier

Drainage construction interests mark Concrete Pipe Week

Sources: American Concrete Pipe Association, Irving, Texas; County Materials Corp., Marathon, Wis.; CP staff

Members and allies are recognizing the American Concrete Pipe Association-organized Concrete Pipe Week, August 18-24, through plant tours and employee appreciation events, while engaging federal, state or local officials in discussions about product quality, performance and resilience as they relate to storm and sanitary sewer infrastructure, culverts, and small precast bridges. 

Read more: Drainage construction interests mark Concrete Pipe Week

OSHA revisits principal reference in silica standard for construction

Source: Occupational Safety and Health Administration 

OSHA is soliciting industry perspective and comments on Table 1 of the agency’s Respirable Crystalline Silica Standard for Construction through October 14. Officials seek information on a) additional engineering and work practice control methods to effectively limit exposure to silica for listed equipment and tasks; and, b) other silica-generating construction equipment and tasks that the agency should consider adding to the table.

Read more: OSHA revisits principal reference in silica standard for construction

FMCSA proposal harmonizes mixer, dump, tanker driver hours terms

Source: National Ready Mixed Concrete Association, Silver Spring, Md.

After years of conferring with agency officials on how Hours of Service (HOS) rules bear on the unique aspects of ready mixed concrete supply chains, production and delivery, NRMCA staff and Safety, Environmental and Operations Committee members see their efforts compounded in a Federal Motor Carrier Safety Administration proposal to update thresholds for drivers. 

Read more: FMCSA proposal harmonizes mixer, dump, tanker driver hours terms

UCLA team demonstrates carbon capture in precast block production

Sources: University of California, Los Angeles; CP staff

A University of California, Los Angeles team in the final round of the $20 million NRG Cosia Carbon Xprize competition has scheduled a February 2020 demonstration of a process yielding precast concrete blocks with carbon dioxide gas from coal-fired power generation. Carbon Upcycling UCLA will stage the 30-day undertaking at the Dry Fork Station near Gillette, Wyo.; members see daily production of up to 10 tons of their CO2ncrete-trademarked units for use in wall construction. 

Read more: UCLA team demonstrates carbon capture in precast block production