Sources: Summit Materials Inc., Denver; CP staff
Summit Materials anticipates a mid-March closing on key aggregate, concrete and asphalt production assets of Roanoke, Va.-based Boxley Materials Co., a 124-year-old operator serving Virginia and West Virginia. A definitive agreement on the deal was announced less than two weeks after Summit closed on Wilmington, N.C.-based American Materials Co., with five sand & gravel operations in the Carolinas.
Sources: Massachusetts Institute of Technology, Cambridge; CP staff
To further understand concrete’s microscopic structure and behavior, researchers from the Massachusetts Institute of Technology, Georgetown University, France’s CNRS and peer institutions on both sides of the Atlantic have focused on whether the principal binder, calcium silicate hydrate, is a continuous solid, like metal or stone, or an aggregate of small particles. Their finding that solidified CSH is a “bit of both” could inform new approaches to lowering mix designs’ water volume and finished structures’ permeability.
Sources: Occupational Safety and Health Administration; CP staff
OSHA and companion federal agencies have designated May 2-6 as the third annual National Safety Stand-Down, reminding or educating construction employers and workers of the serious dangers of falls—the leading cause of fatalities stemming from site accidents.
Sources: Columbia Machine Inc., Vancouver, Wash.; CP staff
The acquisition of Radom, Poland-based Techmatik S.A., a leader in paving stone mold, big board machinery, handling and cubing solutions, plus batching and mixing equipment strengthens Columbia Machine’s global customer support and manufacturing capabilities.
Sources: American Chemistry Council, Washington, D.C.; CP staff
The American Chemistry Council (ACC) has launched www.BuildingWithChemistry.org to inform architects, specifiers, interior designers and other building and construction professionals about green building codes and standards; materials selection; and, the role of chemistry in developing innovative, sustainable solutions.
Sources: Environmental Protection Agency; CP staff
As part of a three-year review, EPA has finalized its National Enforcement Initiatives for fiscal years 2017-2019, approaching the next cycle, October 1 (FY2017 start) with one expanded and two new targets: