본 연구는 재생굵은골재를 이용한 콘크리트의 성능을 개선하기 위하여 SBR 라텍스를 활용하여 재생골재 콘크리트를 제조하고, 유동성과 역학적 성능 및 건조수축에 대하여 검토하였다. 실험결과 SBR 라텍스를 6%정도 혼입하면 재료분리에 저항하는 유동성을 확보할 수 있고, 압축강도 증진 및 휨강도 개선에 큰 효과가 있는 것을 알 수 있었다. 또한 건조수축의 감소에 우수한 재생골재 콘크리트를 제조할 수 있을 것으로 판단된다.

This study is purposed to improve the performance of concrete made of recycled coarse aggregate. For this, recycled aggregate concrete was produced with SBR latex, and fluidity, dynamic performance and drying shrinkage were examined. According to the result, with mixing 6% of SBR latex, fluidity having resistance against segregation can be insured and compressive and flexural strength was increased. Especially the increment in terms of flexures was remarkable. In addition to, with above mixing ratio, drying shrinkage was reduced. Therefore there is a strong inference that superior recycled aggregate concrete can be produced with using 6% of SBR latex.

• 유덕룡(전남대학교 건축공학과)
• 고성석( 전남대학교 건축공학과) | 고성석