| 혼합재를 사용한 시멘트경화체의 해수 중에서의 동결융해 저항성 |
| 이양수, 김정환, 최상흘1, 한기성 |
인하대학교 무기재료공학과
1한양대학교 무기재료공학과 |
| Freezing and Thawing Resistance of Hardened Cement Paste Containing Blending Materials in the Sea Water |
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| ABSTRACT |
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In this study, the freezing and thawing resistance in sea-water of hardened cement paste was investigated by adding slag, diatomaceous earth and fly ash as blending materials and air entraining agent and superplasticizer as admixtures to the cement paste. The structure of hardened cement pate was densified by potential hydraulic properties and pozzolan reactivities of materials and the freezing and thawing resistance of the paste was improved with the effect blending materials and admixtures. As the blending materials were added to the paste, the quantity of C3A was relatively reduced and the formation of expansive ettringite was suppressed to decrease the penetration of sea-water or Cl-, SO42-ion, and then freeze-thaw resistance was enhanced. Particulary, when 40% of slag was mixed, the resistance was excellent. |
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