Investigation of the type of supplementary cementing materials on the durability of self-consolidating concrete

Mohammed Sonebi*, S. Stewart, J. Condon

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Self-consolidating concrete (SCC) is designed to exhibit high deformability and moderate viscosity to maintain homogeneity and adequate stability to fill the formwork, and encapsulate the reinforcement without any mechanical vibration. Any concrete should have high impermeability and low chloride diffusion to reduce the risk of corrosion and enhance service life. In this study, the effect of the replacement content of cement by supplementary cementing materials (SCM) and fillers. Limestone powder (LSP) replacement of 15% to 30%, ground granulated blastfurnace slag (GGBS) of 40% to 60%, and pulverized fly ash (PFA) of 20% to 35% are evaluated on the durability of SCC of grade C40/50. Fresh concrete properties and development of compressive strength were also evaluated. For the durability performance, all mixtures were tested at 28 days for the air permeability, water permeability, sorptivity, and chloride diffusion which were assessed by Autoclam, and Permit tests. The chloride migration coefficient was dependent on the type SCM and filler in use. The most durable SCC mixture, taking into consideration overall properties, was found to be the one containing 20% PFA, which showed low capillary water absorption, water and air permeation, and lower ionic diffusivity in comparison to the other mixtures. In general, SCC mixtures containing GGBS exhibited inferior performance regarding air and water permeability and sorptivity, but had satisfactory chloride resistance. SCC with 50% of GGBS demonstrates the lowest chloride diffusivity.

Original languageEnglish
Title of host publication10th ACI International Conference on Recent Advances in Concrete Technology and Sustainability Issues
Pages157-171
Number of pages15
Edition261 SP
Publication statusPublished - 01 Dec 2009
Event10th ACI International Conference on Recent Advances in Concrete Technology and Sustainability Issues - Seville, Spain
Duration: 14 Oct 200916 Oct 2009

Publication series

NameAmerican Concrete Institute, ACI Special Publication
Number261 SP
ISSN (Print)0193-2527

Conference

Conference10th ACI International Conference on Recent Advances in Concrete Technology and Sustainability Issues
CountrySpain
CitySeville
Period14/10/200916/10/2009

Keywords

  • Capillarity
  • Chloride diffusion
  • Ground-granulated blast-furnace slag (GGBS)
  • Limestone powder (LSP)
  • Permeability
  • Pulverized fly ash (PFA)
  • Self-consolidating concrete (SCC)

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

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