Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Preparation of Concrete Admixtures from Pine Bark Wasts(III) -Improvement of Strength Properties on Cement Mortar Using ASAQ Cooking Spent Liquor with Surfactants-

폐 소나무 수피로부터 콘크리트 혼화제의 제조(III) -ASAQ 증해폐액에 계면활성제 첨가에 의한 시멘트 모르터의 강도 특성 개선-

  • 박성천 (전북대학교 임산공학과 대학원생) ;
  • 문성필 (전북대학교 임산공학과 부교수(농업과학기술연구소)) ;
  • 소양섭 (전북대학교 건축공학과)
  • Published : 1998.04.01
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Abstract

The study was carried out the efficiency of spent liquor(BSL) obtained from alkaline sulfite-anthraquinone cooking of pine bark added various surfactants. By adding surfactant to alkaline, weak alkaline, nertralized BSL, the dispersing ability of cement was remarkably improved. It was shown that the rate of water-reducing was 20~22%. The most superior efficiency surfactant was MTG. When BSL, MBSL and ABSL were added to MTG, the improvement of early and later strength was clear and also exhibited the superior properties of strength compared to PLAIN. Therefore, is a possibility that BSL will be used instead of melamine-base admixtures.

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