Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/214226

Title

Effect of strain rate on strength properties of low-calcium fly-ash-based geopolymer mortar under dry condition

Author(s)

Khandelwal, Manoj;  Ranjith, P. G.;  Pan, Zhu;  Sanjayan, J. G.

Abstract

This paper presents the mechanical and elastic properties of inorganic polymer mortar under varying strain rates. The study includes a determination of the compressive strength, modulus of elasticity and Poisson's ratio at 0.001, 0.005, 0.01 and 0.05 mm/s strain rate. A total of 21 cylindrical specimens having 100 mm length and 50 mm diameter were investigated, and all tests were carried out pursuant to the relevant Australian Standards. Although some variability between the mixes was observed, the results show that, in most cases, the engineering properties of geopolymer mortar compare favourably to those predicted by the relevant Australian Standards for concrete mixtures. It was found that the change in the strain rate causes different behaviour related to the percentage of the ultimate load. The ultimate strength, Young's modulus and Poisson's ratio of the geopolymer mortar depend on the strain rate. It was also found that as the strain rate increases, mechanical and elastic properties of geopolymer mortar substantially increase in logarithmic manner.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences

Source

Arabian Journal of Geosciences, (article in press)

Publication year

2013 (in press)

FOR Code(s)

0403 Geology

Keyword(s)

Elastic properties;  Geopolymer mortar;  Strain rate;  Ultimate strength

Publisher

Springer

ISSN

1866-7511

Publisher URL

http://dx.doi.org/10.1007/s12517-011-0507-0

Copyright

Copyright © Saudi Society for Geosciences 2012.

Peer reviewed