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Incombustibility and Freezing-Thawing Resistance of Lightweight Polymer Concrete  

채경희 (우송공업대학 건축설비과)
최예환 (강원대학교 농업공학부)
연규석 (강원대학교 농업공학부)
이윤수 (주성대학 토목공학과)
주명기 (주성대학 토목공학과)
Publication Information
Magazine of the Korean Society of Agricultural Engineers / v.45, no.1, 2003 , pp. 45-54 More about this Journal
Abstract
The effects of binder content and silica sand content on the durability characteristics of lightweight polymer concretes are examined. As a result, the flame lingering times using unsaturated polyester resin and non-combustible polyester resin were 60∼120 and 0∼4 seconds respectively, and the combustion lengths were 9∼11 mm and 0∼3 mm, respectively. Thus it is believed that the lightweight polymer concrete was incombustible and the light weight polymer concrete in which non-combustible material was added was perfectly non-combustible. The percent of original mass of lightweight polymer concrete, according to the freezing-thawing experiment, was below 0.3 %, which was much less than that of cement concrete. The pluse velocity, for the case of the binder content 28 %, showed the minimum decreasing rate for the lightweight polymer concrete with silica sand content of 50 %. The higher the binder content, the greater the durability. That is much higher than other material and believed that the freezing-thawing was suppressed by a low absorption.
Keywords
Lightweight polymer concrete; Binder content; Silica sand content; Incombustibility; Freezing-thawing resistance;
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