Experimental Study on Reduction of Cement Content in High-Fluidity Concrete for Massive Concrete Structure

This paper describes how high-fluidity concrete is being used with increasing frequency in the civil engineering and building construction fields. In recent years, high-fluidity concrete has greatly contributed to the rationalization of the construction of concrete dams that are a typical massive concrete structure, specifically through its use to execute discharge conduits, their surrounding structures, and other parts reinforced with steel bars. In order to expand the range of its application to the main part of dam bodies, its thermal stress must be limited by minimizing the heat of hydration of cement in concrete. This paper has therefore carried out a study on high-fluidity concrete with the low cement content. It introduces a proposed mix design method for high-fluidity concrete that can be applied when large coarse aggregate is used. Following this, it presents the results of selecting high-fluidity concrete mix proportions prepared using this design method with a large maximum size of the aggregate (MSA - 40 mm) and the fly ash replacement ratio (F/C+F, C; cement content, F; fly ash unit content) also raised to lower unit cement content. The results of a study on the properties of this concrete, and the properties of high-fluidity concrete with low cement content are then reported and discussed in the paper.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 477-487
  • Monograph Title: Role of Concrete in Sustainable Development

Subject/Index Terms

Filing Info

  • Accession Number: 01010805
  • Record Type: Publication
  • ISBN: 0727732471
  • Files: TRIS
  • Created Date: Nov 28 2005 2:25PM