Optimization of self-consolidating pastes containing limestone powder and chemical admixtures

Jacek Kwasny*, M. Sonebi, P. A.M. Basheer

*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The performance of self-consolidating pastes was optimized by studying the effect of three mix composition parameters, limestone powder (LSP) content, dosage of superplasticizer (SP), and that of viscosity-modifying admixture (VMA), in a statistically designed experiment. Four properties of the pastes were measured: fluidity (mini-slump flow), Vicat setting times, volume change in the fresh state, and 28-day compressive strength. The optimization was preceded by the evaluation of the response surfaces of all chosen properties in the specified ranges of the three variables. The response surface results emphasized the primary and secondary effects on the properties of cement paste. The optimization indicated that pastes with properties acceptable for self-consolidating applications could be obtained with a moderate LSP content (for example, 19.5% by mass of total powder) and low dosage of the chemical admixtures (for example, 0.64% of SP and 0.01% of VMA by mass of total powder).

Original languageEnglish
Title of host publication10th ACI International Conference on Recent Advances in Concrete Technology and Sustainability Issues
Pages115-132
Number of pages18
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

  • Compressive strength
  • Limestone powder
  • Mini-slump flow
  • Setting time
  • Superplasticizer
  • Viscosity-modifying admixture
  • Volume change

ASJC Scopus subject areas

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

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