Effect of Microstructure on the Properties of High Strength Hardened Cement Paste(I)

고강도 시멘트 경화체의 특성에 미치는 미세구조의 영향(I)

  • 김정환 (인하대학교 요업공학과) ;
  • 최상흘 (한양대학교 무기재료공학과) ;
  • 한기성 (인하대학교 요업공학과)
  • Published : 1990.07.01


Investigation for the preparation of high strength hardened cement paste using ordinary portland cement, hydroxypropyl methyl cellulose(HPMC) with SiC powder was carried out. The cement paste was mixed with 0.1 of water cement ratio by twin roll mill and cured 60 days in humidity chamber. The hydration degree of cement paste cured with W/C=0.1 in 60 days was about 30% and most pores in the paste were found to be existed as gel pores of diameter less than 0.01㎛. The maximum flexural strength of hardened cement paste was about 960kg/㎠. When the SiC powder was added to the paste, the flexural strength was 1000∼1100kg/㎠ and the Young's modulus was 8∼9×105kg/㎠.



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