Development of high-strength, economical self-consolidating concrete


Naık T. R. , Kumar R., Ramme B. W. , Canpolat F.

CONSTRUCTION AND BUILDING MATERIALS, vol.30, pp.463-469, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 30
  • Publication Date: 2012
  • Doi Number: 10.1016/j.conbuildmat.2011.12.025
  • Title of Journal : CONSTRUCTION AND BUILDING MATERIALS
  • Page Numbers: pp.463-469
  • Keywords: Admixture, Bleeding, Compressive strength, Fly ash, High-strength concrete, Self-consolidating concrete, COMPACTING CONCRETE, FLY-ASH

Abstract

This paper presents information regarding development, properties, and advantages and disadvantages of using high-strength self-consolidating concrete in the construction industry. It also presents results of a study recently completed for manufacturing economical high-strength self-consolidating concrete containing high-volumes of fly ash. In this study, portland cement was replaced by Class C fly ash in the range of 35-55% by the mass of cement. The results of fresh and hardened properties of concrete show that the use of high-volumes of Class C fly ash in self-consolidating concrete reduces the requirements for superplasticizer (HRWRA) and viscosity modifying agent (VMA) compared with the normal dosage for such admixtures in self-Consolidating concrete. The results further indicate that economical self-consolidating concrete with 28-day strengths up to 62 MPa can be made using high-volumes of fly ash. Such concretes can be used for a wide range of applications from cast-in-place to precast concrete construction. Published by Elsevier Ltd.