Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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Tensile Strength of Cement Mortar using Pitch-based Carbon Fiber Derived from Oil Residues

석유피치 재활용 탄소섬유를 혼입한 모르타르의 인장 특성

  • Rhee, Inkyu (Department of Civil Eng., Chonnam National University) ;
  • Lee, Jun Seok (Institute of Bio-Housing, Chonnam National University) ;
  • Kim, Jin Hee (Institute of Bio-Housing, Chonnam National University) ;
  • Kim, Yoong Ahm (School of Polymer Science and Eng., Chonnam National University) ;
  • Kim, Woo (Department of Civil Eng., Chonnam National University)
  • 이인규 (전남대학교 토목공학과) ;
  • 이준석 (전남대학교 바이오하우징연구소) ;
  • 김진희 (전남대학교 바이오하우징연구소) ;
  • 김융암 (전남대학교 고분자융합소재공학부) ;
  • 김우 (전남대학교 토목공학과)
  • Received : 2017.09.06
  • Accepted : 2017.09.29
  • Published : 2017.12.31
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Abstract

The direct tensile strength of the mortar specimen containing pitch-based carbon fiber was ranged between 1/27~1/22 as compared to the average compressive strength of mortar. It was found that the direct tensile strength of the mortar containing the same amount of PAN-based carbon fiber was around 1/15. While the case of the control specimen without the carbon fiber was around 1/29. One the other hands, the flexural tensile strength of the mortar containing pitch-based carbon fibers was about 1/12 as compared to the average compressive strength. In case of the mortar specimen with PAN-based carbon fiber and control mortar were 1/10 and 1/13.5, respectively. The tensile performance of the mortar with pitch-based carbon fiber was found to be intermediate between control mortar and the reinforced mortar incorporated with the PAN-based carbon fiber.

피치계 탄소섬유를 함유한 모르타르의 직접인장강도는 평균압축강도의 1/27~1/22에 해당하였다. 동일 양의 PAN계 탄소섬유를 함유한 모르타르의 직접인장강도가 1/15임에 비하여, 낮은 수준으로 나타났다. 이 때, 무보강 기준시편의 직접인장강도는 1/29 수준이었다. 피치계 탄소섬유를 함유한 모르타르의 휨인장강도는 평균압축강도에 비해, 약 1/12 수준으로 나타났고, PAN계 탄소섬유를 함유한 모르타르와 무보강 모르타르는 각각 1/10, 1/13.5의 수준으로 나타났다. 피치계 탄소섬유를 혼입한 모르타르의 인장성능은 무보강 모르타르와 PAN계 탄소섬유를 혼입한 모르타르의 중간 수준으로 나타났다.

Keywords

References

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