Freeze-Thaw Durability of Portland Cement Concrete Subjected to Aircraft Deicer

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Influence of glycol, which is the main composition of the most frequently used aircraft dicer, on the freeze-thaw durability of Portland cement concrete were investigated. Freeze-thaw durability of Portland cement concrete was tested by accelerated freeze-thaw test. Four kinds of solutions, namely tap water, 3.5% NaCl solution, glycol solutions and a LBR-A type commercial aircraft deicer were employed to be the freezing-thawing mediums. Results show that freeze-thaw durability of concrete exposed to glycol solutions is closely related to the solution concentrations. Failure of concretes exposed to 3.5% glycol solution is similar to that of those exposed 3.5% NaCl solution, which are attributed to serious surface scaling. While damage of concrete exposed to 12.5% and 25% glycol solutions are postponed, and the durability of concrete are increased. Compared with glycol solution, the commercial aircraft deicer demonstrated much more negative effect to concrete freeze-thaw durability, and the degree even exceeds 3.5% NaCl solution. Consequently, the commercial aircraft deicer is not a kind of environmental friendly deicer as usually considered.

Info:

Periodical:

Advanced Materials Research (Volumes 152-153)

Edited by:

Zhengyi Jiang, Jingtao Han and Xianghua Liu

Pages:

1856-1861

DOI:

10.4028/www.scientific.net/AMR.152-153.1856

Citation:

H. Y. Ma et al., "Freeze-Thaw Durability of Portland Cement Concrete Subjected to Aircraft Deicer", Advanced Materials Research, Vols. 152-153, pp. 1856-1861, 2011

Online since:

October 2010

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Price:

$35.00

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