• Title/Summary/Keyword: 시멘트 클링커

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Effect of Chlorine Content in Clinker on Setting and Compressive Strength of Early Strength Cement (클링커 염소 함량이 조강형 시멘트의 응결 및 압축강도에 미치는 영향)

  • Jae-Won Choi;Byoung-Know You;Dong-Kyun Seo;Kyoung-Seok Kim;Min-Cheol Han
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.11 no.3
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    • pp.218-225
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    • 2023

  • In this study, we examine the feasibility of using chlorine in clinker as an early-strength cement by the effect of accelerating the cement hydration reaction of chlorine. Clinker with a chlorine content of 200-1,000 ppm was prepared using actual cement kilns, and 46 cement samples were prepared by adding gypsum and admixtures(GGBFs and limestone). We measured consistency, setting, 1-28 days compressive strength and analyzed them statistically. Test results indicated that an increase of the chlorine content resulted in shortening of initial and final setting time and the improvement of 1 day compressive strength. But the 28 days compressive strength was decreased. Specifically, when the chlorine content was increased from 230 to 965 ppm, the 1 day compressive strength increased up to 4.6 MPa, improvement effect was superior to that of increasing Blaine in the range of 3,400-3,970 cm2/g.

  • https://doi.org/10.14190/JRCR.2023.11.3.218 인용 PDF