• Title/Summary/Keyword: self-compactable perfomance

Search Result 1, Processing Time 0.017 seconds

An Experimental Research on the Material Properties of Super Flowing Concrete (초유동 콘크리트의 재료특성에 관한 실험적 연구)

  • 김진근;한상훈;박연동;노재호
    • Magazine of the Korea Concrete Institute
    • /
    • v.8 no.3
    • /
    • pp.135-146
    • /
    • 1996
  • In this study, the properties of super flowing concrete containing fly ash were experimentally investigated and compared with those of ordinary concrete. Tests were carried out on five types of super flowing concrete mixes containing fly ash and three types of ordinary concrete mixes without fly ash. Flow test, 0-funnel test, box test, L type test and slump test were carried out to obtain the properties for flowability and workability of fresh concrete. The mechanical properties of hardened concrete were also investigated in terms of compressive strength, splitting tensile strength, modulus of elasticity, creep and drying shrinkage. In fresh concrete, it was found that super flowing concrete had excellent workability and flowability compared with ordinary concrete, and had self-compactable performance. Super flowing concrete *also had good mechanical properties at both early and late ages with compressive strength reaching as high as 40 MPa at 28 days. The creep deformation of super flowing concrete investigated was relatively lower than that of ordinary concrete, but drying shrinkage was much higher.