Effect of Admixture on the Properties of High Strength Hardened Cement Paste

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J. Korean Ceram. Soc. > Volume 27(4); 1990 > Article

Journal of the Korean Ceramic Society 1990;27(4): 495.

고강도 시멘트 경화체의 특성에 미치는 혼합재의 영향

김정환, 최상흘¹, 한기성

인하대학교 요업공학과
¹한양대학교 무기재료공학과

Effect of Admixture on the Properties of High Strength Hardened Cement Paste

ABSTRACT

Investigation for the preparation of high strength hardened cement paste using ordinary portland cement, hydroxypropyl methyl cellulose (HPMC) with admixtures was carried out. For molding of the specimen, the paste was mixed with 0.1 of water cement ratio by twin roll mill. The maximum flexural strength of dried hardened cement paste was about 600∼700kg/㎠. When the SiC was added to the paste, the dry flexural strength was about 920kg/㎠ and the young's modulus was 5.2×105kg/㎠. When the admixtures were added to the specimens, wet strength of the harened cement paste immersed in water was showed around 50∼100kg/㎠ higher than that of plain specimen. Consequently it is recognized the water stability of hardened cement paste was remarkably improved by adequate admixture.