Attend the Architects’ Day Lunch-and-Learn during the ACI Virtual Concrete Convention | Influence Codes and Standards at the ACI Virtual Concrete Convention | High school students compete to build concrete canoe
One of the critical changes to ACI 318-19 is a broader acceptance for how engineers can use high-strength rebar, or HSRB, in concrete structures, write Lou Colarusso and Samuel Barker. "Designers now have more options when working with HSRB, headed HSRB and headed rebar in general--options that streamline design, supply and placement; reduce construction cycle times; and, provide overall cost savings," they write.
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High school students in Albemarle County, Va., are competing in a college-level competition to build a concrete canoe that floats. "It's great to go into different courses take a test, get a good grade but it's even better when you can get something out of it that you can physically touch," said Zoe Martin, team captain.
Exposed Design Group, a concrete contractor based in Dallas, has grown over the past dozen years from a waterproof contractor to a specialist in warehouse floors. "Every concrete mix is different, every location is different, and one of the biggest hurdles is getting people to understand that," says co-founder Jayson Barnhardt.
Loop Architects has designed a concrete visitor center that appears to be part of a dune for a national park in Denmark. The visitor center features cast-in-place concrete walls, as well as concrete paving on the exterior.
Sources say the $150 billion Clean Energy Performance Program in the massive reconciliation bill pending in Congress is likely to be removed due to objections from Sen. Joe Manchin, D-W.Va. The program sought by President Joe Biden would pay electric utility companies to adopt clean energy and impose fines on those that don't.