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J. Korean Ceram. Soc. > Volume 12(4); 1975 > Article
Journal of the Korean Ceramic Society 1975;12(4): 9.
고분자에말죤의 첨가에 따른 시멘트모르터의 특성에 관한 연구 -Polyacrylicacid Ester 및 Polystyrene 에말죤의 첨가영향-
김창은, 최강순
연세대학교 요업공학과
The Study on the Properties of Polymer Emulson Modified Mortar -Effects of Polyacrylicacid Ester and Polystyrene Modified Mortar-
ABSTRACT
Polymer emulsion was used as the admixture for the purpose of increasing the mechanical properties of cement mortar. The effect of polymer emulsion admixture on compressive strength and tensile strength and chemical resistance, relative humidity on compressive and tensile strength, sand particles on water absorption were studied. The results were as follows. 1. Polymer emulson modified mortar cured under 95% of realative humidity showed lower strength than the mortar cured at dry condition. 2. The maximum strength was attained at 10~20% of polystyrene and polyacrylic acid ester polymer-cement mortar. 3. The modified mortar (sand size rate (-9+35)mech:(-35+60)mech=4 : 1) was 1.5 times lower than the modified mortar (1 : 1) in water absorption. 4. Compared with the ordinary mortar, the modified mortar showed 2~3 times greater chemical resistance for 5% HCl or 5% H2SO4.
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