Source: ASTM International, West Conshohocken, Pa.
ASTM Committees E06 on Performance of Buildings and D08 on Roofing and Waterproofing invite abstracts of papers for the Symposium on Building Science and the Physics of Building Enclosure Performance, October 21, 2018, at the Washington Hilton, Washington, D.C.
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.”