Effect of Lignin Addition on Characteristics of Cement Pastes

리그닌 첨가가 시멘트 페이스트 특성에 미치는 영향

  • Sim, Jae-Hong (Department of Environmental Disaster Prevention Engineering, Kangwon National University) ;
  • Park, Joon-Seok (Evergreen E&C)
  • 심재홍 (강원대학교 공학대학 환경방재공학과) ;
  • 박준석 ((주)상록 E&C)
  • Received : 2007.01.05
  • Accepted : 2007.03.15
  • Published : 2007.04.10


This research was conducted to evaluate the effect of lignin addition on the characteristics of portland cement pastes. Lignin was added to cement at the ratio of 0.5 to 2.0% on dry weight basis. The specimens were cured for 3, 7, 14, and 28 days. Distilled water and sea water were used as leaching solutions. pH and concentration of Ca, Na, and K ions in the leaching solutions were analyzed. Lignin addition of 0.5~2.0% to cement pastes decreased the leached concentration of Ca, Na, and K ions for distilled water, compared to the case without lignin addition. However, a significant pH variation of the leached solutions was not observed with the lignin addition. Lignin addition significantly improved the compressive strength of cement pastes, approximately 30~60% for curing in distilled water and 3~20% for that in sea water.


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