This study was aimed to investigate the difference in strength of Carbon Nanotube (CNT) reinforced cement mortars with different types of surfactants and doses. In the experimental program, CTAB, SDBS and TX10 which were common surfactants adopted to improve CNTs dispersion in fabricating CNT composites in many industrial fields were included and superplasticizer which was revealed to be effective to disperse CNTs especially in CNT reinforced cementitious composites were added as well. Superplasticizer presented less strength reduction in cement mortar and more strength gain by adding CNTs among four types of surfactants. Higher dosage of superplasticizer caused lower strength of cement mortar. Adding CNTs of 0.4 wt.% or less to cement didn’t show strength enhancement by adding CNTs but 0.8 wt.% of CNTs resulted in strengthening effect after all. Finally, a combination of 0.1 wt.% of CNTs, superplasticizer and sonication treatment could lead to strength improvement by adding CNTs in cement mortar.

1. 서 론
 2. 실 험 (I) : 계면활성제 종류에 따른 영향
  2.1 재료구성 및 배합
  2.2 시험체 제작 및 시험 방법
  2.3 계면활성제 종류에 따른 복합체 특성 비교
 3. 실 험 (II) : 고성능감수제 사용 효과 평가
  3.1 고성능감수제의 분산성 향상 효과 비교
  3.2 고성능감수제 사용량에 따른 복합체의 특성변화
  3.3 초음파 처리와 고성능감수제의 복합 적용
 4. 결 론
 감사의 글
 References

• 이종한(정회원, 대구대학교 토목공학과 조교수) | Jong-Han Lee
• 강수태(정회원, 대구대학교 토목공학과 조교수) | Su-Tae Kang 교신저자
• 하성진(학생회원, 대구대학교 토목공학과 석사과정) | Sung-Jin Ha