Specifying Air Entrainment

December 13, 1998
Publication: Construction Specifier p 45 - 49
Author(s): Michael Brainerd Mauro Scali Paul Kelley

Abstract: Air entrainment can prevent cyclic freeze-thaw damage to concrete over a reasonable service life if coupled with a strong cement paste with low permeability. This article discusses how to correctly specify air entrainment, including American Concrete Institute requirements for freeze-thaw resistance, air-void system properties, factors affecting total air content and air-void parameters in hardened concrete, and petrographic evaluation of the air-void system.