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Strength and ductility behaviour of rubberised cemented clayey soil.
- Source :
-
Proceedings of the Institution of Civil Engineers: Ground Improvement . Feb2022, Vol. 175 Issue 1, p34-50. 17p. - Publication Year :
- 2022
-
Abstract
- This paper reports the strength and ductility behaviour of rubber-granulate-reinforced cemented clayey soil and rubber-fibre-reinforced cemented clayey soil. The load–deformation behaviour of specimens was analysed in terms of absolute toughness and toughness index (TI) for further screening of the curves. A 5·08 and 3·46% improvement in the unconfined compressive strength and 16·74 and 8·60% improvement in the split tensile strength of the clayey soil was observed with the addition of rubber granulates and fibres up to 2·5 and 5%, respectively. However, increasing the content of granulates and fibres led to reductions in strength. The rate of strength reduction in granulate-reinforced soil was found to be higher than in that containing fibre. The absolute toughness and TI of soil mixed with 5 and 7·5% of granulates and fibres were found to be higher compared to values for other inclusions. Overall, the inclusion of rubber particles led to a decrease in initial stiffness, improved ductility and strain hardening in specimens subject to compressive load. However, in comparison with the ductile behaviour of fibre-reinforced soil under tensile loads, granulates were found to be ineffective in changing the soil's brittle behaviour. [ABSTRACT FROM AUTHOR]
- Subjects :
- *CLAY soils
*DUCTILITY
*STRAIN hardening
*COMPRESSION loads
*RUBBER
*TENSILE strength
Subjects
Details
- Language :
- English
- ISSN :
- 17550750
- Volume :
- 175
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Proceedings of the Institution of Civil Engineers: Ground Improvement
- Publication Type :
- Academic Journal
- Accession number :
- 154794283
- Full Text :
- https://doi.org/10.1680/jgrim.19.00017