Entrained Air Simplifies Winter Curing

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Title: Entrained Air Simplifies Winter Curing

Author(s): Joesoh J. Shideler, Harold W. Brewer, and Wilbur H. Chamberlin

Publication: Journal Proceedings

Volume: 47

Issue: 2

Appears on pages(s): 449-459

Keywords: no keywords

Date: 2/1/1951

Abstract:
The investigation described was undertaken to determine the winter protection required to protect air-entraining concrete from damage by freezing. Cylinders made with Type II and V cement and various percentages of calcium cholride were cured at temperatures ranging from 10 to 70 F and tested for strength at ages ranging from 3 to 180 days. The resistance of these concretes to accelerated freezing and thawing was compared. The results indicate that the amount of winter protection, as presently specified by the Bureau of Reclamation, can be reduced when air-entraining concree is used.