재유화형 분말수지를 혼입한 폴리머 시멘트 모르타르의 건조수축

Drying Shrinkage of Polymer-Modified Mortar Using redispersible Polymer Powder

The effects of polymer-cement ratio, antifoamer agent content and shrinkage-reducing agent content on the drying shrinkage of polymer-modified mortars using redispersible polymer powder are examined. As a result, irrespective of the antifoamer content, the drying shrinkage of the polymer-modified mortars using redispersible polymer powder tend to decrease with increasing polymer-cement ratio and shrinkage-reducing agent content. Such a drying shrinkage development is due to the effect of reducing water from incorporation of EVA redispersible polymer powder and antifoamer agent.