A Study of the Influence of thermal Properties on the Durability of Concrete

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Title: A Study of the Influence of thermal Properties on the Durability of Concrete

Author(s): Albert Weiner

Publication: Journal Proceedings

Volume: 43

Issue: 5

Appears on pages(s): 997-1008

Keywords: none

Date: 5/1/1947

Abstract:
An attempt is made to rationalize the effect of air An attempt is made to rationalize the effect of air content and type of aggregate on the durability of content and type of aggregate on the durability of concrete by a consideration of the thermal prop- concrete by a consideration of the thermal properties. erties. The principal thermal properties of plain, The principal thermal properties of plain, Vinsol resin Vinsol resin and neutralized Vinsol resin concrete and neutralized Vinsol resin concrete made with made with ;iliceous gravel and with trap-rock under s gravel and with trap-rock under two mixing conditions (air and vacuum-mix) are pre- two mixing conditions (air and vacuum-mix) are presented. The increased durability developed by addi- sented. The increased durability developed by addition of an air-entraining admixture does not appear tion of an air-entraining admixture does not appear to be a result of the slight change in thermal prop- to be a result of the slight change in thermal prop-erties accompanying in thermal in thermal air entrainment. When different air entrainment. When differusivity exist between mortar and usivity exist between mortar and coarse aggregate, coarse aggregate, rapid freezing and thawing may rapid freezing and thawing may cause failure by internal expansion. This paper should cause failure by internal expansion. This paper should be considered as a progress report on the subject be considered as a progress report on the subject and the conclusion set forth as tentative, subject to and the conclusion set forth as tentative, to verification by the results of further study. verification by the results of further study.