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http://dx.doi.org/10.4334/JKCI.2002.14.5.660

Durability of Ultrarapid-Hardening Polymer-Modified Mortar Using Redispersible Polymer Powder  

이윤수 (주성대학 토목공학과)
주명기 (강원대학교 석재복합신소재제품연구센터)
연규석 (강원대학교 석재복합신소재제품연구센터)
정인수 (흥진산업(주))
Publication Information
Journal of the Korea Concrete Institute / v.14, no.5, 2002 , pp. 660-667 More about this Journal
Abstract
The effects of polymer-cement ratio and antifoamer content on the durability of ultrarapid-hardening polymer-modified mortars using redispersible polymer powder are examined. As a result, regardless of the antifoamer content, the setting time of the ultrarapid-hardening polymer-modified mortars using redispersible polymer powder tend to delay with increasing polymer-cement ratio. The water absorption and chloride ion penetration depth of the ultrarapid-hardening polymer-modified mortars using redispersible polymer powder decrease with increasing polymer-cement ratio and antifoamer content. The resistance of freezing and thawing and chemicals improvement is attributed to the improved bond between cement hydrates and aggregates because of the incorporation of redispersible polymer powder
Keywords
ultrarapid-hardening polymer-modified mortar; antifoamer content; water absorption; freezing and thawing resistance; chemical resistance;
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