Structure and properties of aerated concrete: A review

N. Narayanan, K. Ramamurthy

Research output: Contribution to journalArticle

448 Scopus citations

Abstract

Aerated concrete is relatively homogeneous when compared to normal concrete, as it does not contain coarse aggregate phase, yet shows vast variation in its properties. The properties of aerated concrete depend on its microstructure (void-paste system) and composition, which are influenced by the type of binder used, methods of pore-formation and curing. Although aerated concrete was initially envisaged as a good insulation material, there has been renewed interest in its structural characteristics in view of its lighter weight, savings in material and potential for large scale utilization of wastes like pulverized fuel ash. The focus of this paper is to classify the investigations on the properties of aerated concrete in terms of physical (microstructure, density), chemical, mechanical (compressive and tensile strengths, modulus of elasticity, drying shrinkage) and functional (thermal insulation, moisture transport, durability, fire resistance and acoustic insulation) characteristics.

Original languageEnglish (US)
Pages (from-to)321-329
Number of pages9
JournalCement and Concrete Composites
Volume22
Issue number5
DOIs
StatePublished - Oct 2000
Externally publishedYes

ASJC Scopus subject areas

  • Building and Construction
  • Materials Science(all)

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