Performance of High-Volume Fly Ash Concrete in Hot Weather

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Title: Performance of High-Volume Fly Ash Concrete in Hot Weather

Author(s): P.K. Mehta

Publication: Special Publication

Volume: 209

Issue:

Appears on pages(s): 47-52

Keywords: fly ash; heat of hydration; hot weather; portland cement; thermal cracking

Date: 9/26/2002

Abstract:
Thermal cracking is a serious problem with modern portland-cement concrete structures, especially cast-in-place massive elements made with relatively high cement content and cured under hot-weather conditions. From theoretical considerations and field experience it is concluded that blended portland-cement concrete mixtures containing 50 percent or more ASTM Class F fly ash by mass of the total cementitious material perform much better under these conditions.