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

NRMCA’s updated Compliance Guide for the Federal Drivers' Hours of Service (HOS) addresses key aspects of new Federal Motor Carriers Safety Administration rules, especially in light of ready mixed producer exemptions from 30-minute break and driver logging requirement extension to 14 hours.

Sources: American Society for Concrete Contractors, St. Louis; CP staff

Researchers evaluating the American Concrete Institute’s Guide to Formed Concrete Surfaces (ACI 347.3R-13) contend that a) suggested measurements or other criteria used in assigning a given formed surface to one of the document’s four categories is neither objective nor practical; b) converting ACI 347.3R-13 recommendations to specification requirements could result in disputes and litigation; and, c) preparation of concrete mockups for architect or engineer approval is superior to the guide’s methodologies.

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

Weighing market data and conservative baseline estimates for infrastructure spending and tax reform, PCA Chief Economist Ed Sullivan projects U.S. cement shipments increasing at 3.5 percent rates for 2017 and 2018. “While fiscal stimulus will boost consumption, other economic indicators will temper growth,” he told attendees of the IEEE-IAS/PCA Cement Conference in Calgary. “Infrastructure policies also take time to implement, so you could be looking at 11 to 22 months before new projects truly get underway.”

Sources: Deere & Co., Moline, Ill.; CP staff

John Deere will significantly expand its construction equipment market stake with a $5.2 billion acquisition of Germany’s Wirtgen Group, projected to close later this year. Wirtgen encompasses namesake concrete paving equipment plus five other brands of milling, processing, mixing, paving, compaction and rehabilitation machines and tools deployed across road construction: Vögele, Hamm, Kleemann, Benninghoven and Ciber.

Source: ASTM International Symposium, West Conshohocken, Pa.; CP staff

Members of ASTM Committees C01 on Cement and C09 on Concrete and Concrete Aggregates invite preliminary abstracts of candidate papers for Symposium on Advances in Cement Analysis and Concrete Petrography, June 27, 2018, at the Sheraton San Diego Hotel & Marina, San Diego.