Stress–strain behaviour of confined Geopolymer concrete

•Studied the behaviour of PCC and GPC specimens.•Stress–strain behaviour in uniaxial compression was studied.•Effect of confinement on the stress–strain behaviour of GPC and PCC were studied.•Proposed an analytical model for the stress–strain behaviour of confined GPC. Fly ash based Geopolymer concr...

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Bibliographic Details
Published in:Construction & building materials 2014-12, Vol.73, p.326-331
Main Authors: Ganesan, N., Abraham, Ruby, Deepa Raj, S., Sasi, Divya
Format: Article
Language:English
Subjects:
Alkali-activated cement
Aluminosilicates
Aluminum silicates
Analysis
Building materials
Cement
Concretes
Confinement
Construction materials
Fly ash
Geopolymer
Mathematical analysis
Mechanical properties
Polymer-impregnated concrete
Properties
Reinforcement
Stress-strain relationships
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Summary:•Studied the behaviour of PCC and GPC specimens.•Stress–strain behaviour in uniaxial compression was studied.•Effect of confinement on the stress–strain behaviour of GPC and PCC were studied.•Proposed an analytical model for the stress–strain behaviour of confined GPC. Fly ash based Geopolymer concrete (GPC) is an environment friendly alternative to conventional concrete made from alkali activated aluminosilicate and aggregate. This study intends to examine the effects of confinement on the behaviour of GPC and conventional Portland Cement Concrete (PCC). Out of the 36 cylinders tested under monotonic loading 24 cylinders were made with GPC and the remaining with PCC. The variable considered in this study is the volumetric ratio of confinement. An analytical model is proposed for the stress–strain behaviour of confined GPC. The results showed that confinement reinforcement greatly improved the strength and ductility of GPC than PCC.
ISSN:0950-0618
DOI:10.1016/j.conbuildmat.2014.09.092