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http://dx.doi.org/10.5574/KSOE.2011.25.3.040

An Experimental Study on the Sulfate Resistance of Fly Ash Antiwashout Underwater Concrete  

Kwon, Joong-Hyen (Institute of Marine Industry, Division of Ocean civil Engineering, Gyeongsang National University)
Kim, Bong-Ik (Institute of Marine Industry, Division of Ocean civil Engineering, Gyeongsang National University)
Publication Information
Journal of Ocean Engineering and Technology / v.25, no.3, 2011 , pp. 40-46 More about this Journal
Abstract
This paper describes the effects of fly ash replacement on the sulfate resistance of antiwashout underwater concrete which was replaced cement by fly ash from 0% to 50%. and the experimental works were performed on sulfate acceleration test of 5%$Na_2SO_4$ solution to find out the variance of length and weight of specimens. The experimental result shows that the length of specimens of antiwashout underwater concrete age at 180day was highly increased compare with normal concrete by acceleration test. but the mixture which was replaced 50% of fly ash shows reduction of the expansion, weight various, compare with normal concrete specimen. accordingly by using fly ash as admixture in antiwashout underwater concrete in sea environment, it will makes more durable for the attacks of sulfate by sea water.
Keywords
Antiwashout underwater concrete; Fly ash; Sulfate Resistance;
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