Strength Properties of Polymer-Modified Mortars Using Methylmethacrylate-Ethyl Acrylate Latexes according to Amount of Emulsifier

유화제 첨가량에 따른 MMA/EA 합성 라텍스 폴리머 시멘트 모르타르의 강도특성

The purpose of this study is to clarify the effect of the emulsifier ratio on strength properties of the polymer-modified mortars using methylmethacrylate-ethyl acrylate(MMA/EA) latexes, and to obtain basic data necessary to develope appropriate latexes for cement modifiers. Polymer-modified mortars using MMA/EA latexes are prepared with various monomer ratios, and tested for air content, flexural and compressive strengths. From the test results, we knew that the water-cement ratio is decreased and the air content is increased with an increase in the amount of emulsifier. In general, the superior flexural and compressive strengths of polymer-modified mortars using MMA/EA latexes is obtained at a bound MMA content of 60 percent and a emulsifier ratio of 6 percent.