Table Flow Evaluation of CNT-Mixed Fiber Reinforced Cement Composite by Dispersion Method

분산방법에 따른 CNT를 혼입한 섬유보강 시멘트복합체의 유동성 평가

  • 김문규 (충남대학교 건축공학과) ;
  • 김규용 (충남대학교 스마트시티 건축공학과) ;
  • 편수정 (충남대학교 건축공학과) ;
  • 최병철 (충남대학교 건축공학과) ;
  • 박준영 (충남대학교 건축공학과) ;
  • 남정수 (충남대학교 스마트시티 건축공학과)
  • Published : 2023.05.17

Abstract

In this study, the table flow of fiber reinforced cement composites mixed with CNTs dispersed differently according to the dispersion method was evaluated. The mixture was composed of plain mixture according to the presence or absence of ultrasonic dispersion and PCE-based dispersants A and B of 0.5% and 1.0%, respectively, CNT was mixed with 0.03% of cement weight and fiber was mixed with 1.5% of total volume. As a result of the experiment, NC-A0.5 showed a fluidity similar to that of P without CNT. The fluidity of NC-A0.5 and P-N showed a similar tendency, which is considered to be due to the distribution of evenly dispersed CNT particles without agglomeration between cement particles due to the dispersant. NC-B0.5 showed a similar level of firmness to P-U, but after hitting 250 mm, B Agent seems to have a significant effect on liquidity improvement.Both NC-A1.0 and NC-B1.0 seem to have increased flow due to excessive dispersion.

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Acknowledgement

본 연구는 과학기술정보통신부 한국연구재단(No. 2020R1C1C101403812)의 연구비 지원으로 수행되었으며, 이에 감사드립니다.