Hot weather concrete placement requirements will be encountered very soon in the Northeast and are currently being recognized in other geographic regions.

The American Concrete Institute (ACI) defines hot weather as high ambient temperatures, high concrete temperatures, low relative humidity, high wind speed, solar radiation, or any combination that will impair the quality of the concrete due to accelerated moisture loss and/or cement hydration.

Inspectors, contractors, owners, and engineers should be familiar with ACI 305R, Guide to Hot Weather Concreting, and ACI 305.1, ACI Specifications for Hot Weather Concreting.  For additional information on hot weather concrete, refer to ACI 305R, ACI 305.1, or review the Hot Weather Concrete technical paper written by our Senior Engineer, Steven Moore, PE.

Contact Steve with any questions at 518-383-9144,, or visit for more information about the services offered by ATL.