Effect of nanosilica on the sulfate attack resistivity of cement mortar

P. K. Hou, Z. H. Guo, Q. Yu, N. Xie, X. Cheng, S. P. Shah

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

Abstract

The effect of nanosilica on the sulfate attack resistivity of cement mortar was investigated through study on the mechanical property evolution and the length change of the cement mortar under 5 wt.% sodium sulfate for 6 months. Meanwhile, the effects were compared with those of fly ash-replacement mortar. Results showed that by taking the advantages of nanosilica and fly ash in improving the property of cement mortar at early and later ages, the sulfate attack resistance of cement mortar can be enhanced in mechanical property increase and expansion reduction. Further, it implies that a combination of both pozzolans could enhance the sulfate attack resistivity of cement-based materials.

Original languageEnglish (US)
Title of host publication6th International Conference on Durability of Concrete Structures, ICDCS 2018
EditorsP. A. Muhammed Basheer
PublisherWhittles Publishing Limited
Pages189-193
Number of pages5
ISBN (Electronic)1849953945, 9781849953948
StatePublished - Jan 1 2018
Externally publishedYes
Event6th International Conference on Durability of Concrete Structures, ICDCS 2018 - Leeds, United Kingdom
Duration: Jul 18 2018Jul 20 2018

Publication series

Name6th International Conference on Durability of Concrete Structures, ICDCS 2018

Conference

Conference6th International Conference on Durability of Concrete Structures, ICDCS 2018
CountryUnited Kingdom
CityLeeds
Period7/18/187/20/18

Keywords

  • Fly ash
  • Mortar
  • Nanosilica
  • Sulfate attack

ASJC Scopus subject areas

  • Mechanics of Materials
  • Safety, Risk, Reliability and Quality
  • Materials Science(all)
  • Building and Construction

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