E3S Web Conf.
Volume 309, 20213rd International Conference on Design and Manufacturing Aspects for Sustainable Energy (ICMED-ICMPC 2021)
|Number of page(s)||6|
|Published online||07 October 2021|
Proposed mathematical model for stress- strain behaviour of geopolymer concrete
1 M. Tech (Structural Engineering), Department of Civil Engineering, VJIT, Hyderabad, India. 1
2 Assistant Professor of Civil Engineering, VJIT, Hyderabad, India.
3 Professor of Civil Engineering, VJIT, Hyderabad, India.
4 Assitant Professor of Civil Engineering, GRIET, Hyderabad, India.
* Corresponding author: email@example.com
In the present study, appropriate analytic stress-strain mathematical model is developed that can capture the real (observable) stress-strain behaviour of geo polymer concrete. The geo polymer concrete mixes have shown improved stress values for the same strain levels compared to that of controlled concrete mix in M20 grade. The analytical equations for the stress-strain response of conventional and geopolymer concrete mixes have been proposed in the form of y = Ax / (1+Bx+Cx2), both for ascending and descending portions of the curves with different set of values for constants. The proposed equations have shown good correlation with experimental values. The proposed empirical equations can be used as stress block in analyzing the flexural behavior of sections of controlled and geo polymer concrete. The stress-strain curves obtained in the experiment for M20 & G20 grades of controlled and geo polymer concrete exhibit a similar trend when compared to the empirical equations of modified Saenz model. So Saenz mathematical model is successfully evaluated and validated for geopolymer concrete.
© The Authors, published by EDP Sciences, 2021
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