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MIT researchers: New microstructure models spell better concrete

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.

Read more: MIT researchers: New microstructure models spell better concrete

OSHA sets fall-prevention campaign’s National Safety Stand-Down

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.

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Columbia Machine acquires European peer Techmatik

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.

Read more: Columbia Machine acquires European peer Techmatik

Council website highlights chemistry in building and construction materials

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.

Read more: Council website highlights chemistry in building and construction materials

Industrial water pollution, chemical releases top EPA enforcement priorities

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:

Read more: Industrial water pollution, chemical releases top EPA enforcement priorities