Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Effect of Microstructure on the Properties of High Strength Grouts

고강도 그라우트재의 특성에 미치는 미세구조의 영향

  • 정민철 (명지대학교 무기재료공학과) ;
  • 남기웅 (명지대학교 무기재료공학과) ;
  • 정윤중 (명지대학교 무기재료공학과)
  • Published : 1994.06.01
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Abstract

Investigation for the high strength grouts using ordinary cement mortar, melamine formaldehyde condensate (MFC) with various admixtures was carried out. The physical properties of the grouts were investigated through the observation of the microstructure and the application of fracture mechanics. When the lime stone and fly ash was added with 6 wt% to the grouts, the compressive strength was about 72 MPa, 69 MPa respectively, and the flexural strength was about 11.9 MPa, 11.4 MPa respectively, the Young's modulus was about 4.3 GPa, 3.9 GPa, and the critical stress intensity was about 7.3 ×10-1MNm-1.5, 6.8×10-1MNm-1.5 respectively. When the silica fume was added with 6 wt% to the grouts, the compressive strength and the flexural strength were 81 MPa, 12.3 MPa, Young's modulus was 4.8 GPa and the critical stress intensity was about 8.4×10-1MNm-1.5.

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References

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