Effect of Water-Soluble Polymer on the Properties of High Strength Hardened Cement Paste

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J. Korean Ceram. Soc. > Volume 26(5); 1989 > Article

Journal of the Korean Ceramic Society 1989;26(5): 698.

고강도 시멘트 경화체의 특성에 미치는 수용성 폴리머의 영향

김정환, 최상흘¹, 한기성

인하대학교 요업공학과
¹한양대학교 무기재료공학과

Effect of Water-Soluble Polymer on the Properties of High Strength Hardened Cement Paste

ABSTRACT

Basic investigation for the flexural strength and water stability of hardened cement pastes using ordinary portland cement with water-soluble polyer (hydroxypropyl methyl cellulose ; HPMC) was carried out with 0.2 of water cement ratio. For molding of the specimen, the paste was mixed by twin roll mill. According to increase in the content of HPMC, the setting time of cement paste was delayed and the flexural strength was increased. The maximum flexural strength of hardened cement paste with 5.0wt% of HPMC was about 330 kg/$textrm{cm}^2$. The expansion of the hardened cement paste immersed in water was increased with the content of water soluble polymer(HPMC). Consequently, the strength and the water stability of the hardened cement pastes were remarkably reduced by the expansion of them.