Oxygen and Chloride Permeability of Alkali-Activated Natural Pozzolan Concrete

Dali Bondar

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


One of the important factors in the use of portland cement concrete is its durability, and most of the situations where durability is lacking have been identifi ed and strategies to manage durability have been implemented. Geopolymer concrete, made from an alkali-activated natural pozzolan (AANP), provides an important opportunity for the reduction of carbon dioxide (CO2) emissions associated with the manufacture of concrete but has a limited history of durability studies. Until its different properties are well understood there is no desire to adopt this new technology of unknown provenance by the concrete industry. This paper presents an experimental study of oxygen and chloride permeability of AANP concrete prepared by activating Taftan andesite and Shahindej dacite (Iranian natural pozzolans), with and without calcining, and the correlations between these properties and compressive strength. The results show that compared to ordinary portland cement (OPC) concrete, AANP concrete has lower oxygen permeability at later ages; but it shows moderate to high chloride ion penetrability.
Original languageEnglish
Pages (from-to)53-61
Number of pages9
JournalMaterials Journal
Issue number1
Publication statusPublished (in print/issue) - 1 Jan 2012


  • alkali-activated natural pozzolan (AANP) concrete
  • chloride permeability
  • geopolymer
  • oxygen permeability.


Dive into the research topics of 'Oxygen and Chloride Permeability of Alkali-Activated Natural Pozzolan Concrete'. Together they form a unique fingerprint.

Cite this