Influence of Mineral Admixtures on the Autogenous Shrinkage and Porosity of High-Strength Concrete

M. S. Konsta-Gdoutos, J. K. Dattatreya, S. P. Shah

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

1 Scopus citations

Abstract

This paper illustrates the effect of silica fume, ultra llne lly ash and ground gr::mulated blast furnace slag on the compressive strength, shrinhtge and the development of pore structure of high performance concrete. Shrinkage measurements were carried out using a modified version of ASTM C-341, as proposed by Tazawa and Mizawaya. The experimental data obtained demonstrates how the material composition, the water to binder ratio, and the distribution of pore volume inlluence strength, autogenous, drying and total shrinkage. High strength mixtures containing ultra llnc lly ash, silica fume and ordinary Portland cement exhihited an increased drying shrinkage rate, when compared with the slag mixture. By using a 10% replacement of UFFA, a large improvement with respect to autogenous shrinkage, relative to a I 0%· silica fume replacement in high strength concrete occurs, without any noticeable effect on compressive strength. The pore structure of the matrix paste at early ages of hydration appei.lrs to have a strong effect on autogenous shrinkage.

Original languageEnglish (US)
Title of host publication6th CANMET/ACI
Subtitle of host publicationDurability of Concrete
EditorsV.M. Malhotra
PublisherAmerican Concrete Institute
Pages227-238
Number of pages12
ISBN (Electronic)9780870311130
StatePublished - Jun 1 2003
Event6th CANMET/ACI International Conference on Durability of Concrete - Thessaloniki, Greece
Duration: Jun 1 2003Jun 7 2003

Publication series

NameAmerican Concrete Institute, ACI Special Publication
VolumeSP-212
ISSN (Print)0193-2527

Conference

Conference6th CANMET/ACI International Conference on Durability of Concrete
Country/TerritoryGreece
CityThessaloniki
Period6/1/036/7/03

Keywords

  • Autogenous shrinkage
  • Durability
  • High performance concrete
  • Porosity

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • General Materials Science

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