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http://dx.doi.org/10.4334/JKCI.2005.17.5.703

Durability of High-fluidity Polymer-Modified Mortar Using Redispersible Polymer Powder  

Joo Myung-Ki (Research Institute for Repair & Rehabilitation Materials of Concrete, Juseong College)
Lee Youn-Su (Research Institute for Repair & Rehabilitation Materials of Concrete, Juseong College)
Youn Do-Yong (Research Institute for Repair & Rehabilitation Materials of Concrete, Juseong College)
Jung In-Su (Hung-Jin Enterprise Co. Ltd.,)
Publication Information
Journal of the Korea Concrete Institute / v.17, no.5, 2005 , pp. 703-708 More about this Journal
Abstract
The effects of polymer-cement ratio and antifoamer content on the setting time and durability of high-fluidity polymer-modified mortars using redispersible polymer powder are examined. As the result, the setting time of the polymer-modified mortars using redispersible polymer powder tends to be delayed with increasing polymer-cement ratio, regardless of the antifoamer content. The water absorption, chloride ion penetration depth and carbonation depth of the high-fluidity 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
high-fluidity polymer-modified mortar; anifoamer content; water absorptiion; chloride ion penetration dephth; freezing and thawing resistance;
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