High Performance Concrete with Residual Rice-Husk Ash

This paper presents the optimization of a residual rice-husk ash (RHA) for its use as mineral admixture in high-performance concretes. The study focuses on the effect of different replacement percentages of cement by residual RHA on mechanical properties and durability aspects of high-performance concrete. The compressive strength development to 1 year is considered; along with splitting tensile, modulus of rupture and modulus of elasticity at 28 days. The study also examines alkali-silica reaction. Four percentages of residual RHA replacement levels (5%, 10%, 15% and 20%) by volume and four water-cementitious materials ratio were utilized in the study. The properties of RHA concrete were also compared with those of Portland cement concrete without rice-husk ash. From the tested properties of the HPC, it is concluded that the optimization of the residual rice-husk ash used provides a positive effect on the properties of high-performance concretes with 10% replacement.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 255-264
  • Monograph Title: Role of Concrete in Sustainable Development

Subject/Index Terms

Filing Info

  • Accession Number: 01010824
  • Record Type: Publication
  • ISBN: 0727732471
  • Files: TRIS
  • Created Date: Nov 28 2005 12:13PM