Deicing Salts and Durability of Concrete Pavements and Joints

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Title: Deicing Salts and Durability of Concrete Pavements and Joints

Author(s): Prannoy Suraneni, Vahid Jafari Azad, O. Burkan Isgor, and W. Jason Weiss

Publication: Concrete International

Volume: 38

Issue: 4

Appears on pages(s): 48-54

Keywords: cement paste, chloride, reaction, damage

Date: 4/1/2016

Abstract:
Increasing damage, primarily along the joints, has been observed in concrete pavements and flatwork that are subjected to deicing salts. This phenomenon can be attributed to two primary factors: fluid saturation of the concrete leading to freezing and thawing damage, and a reaction (phase change) occurring between chloride-based deicing salts and the cementitious matrix. Little is known about the second factor. This article discusses the reaction, techniques used for quantifying the damage, and approaches to minimize the damage.