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Behaviour of plain and fibre reinforced cement stabilised rammed earth under compression, tension and shear
Graphical abstract Display Omitted
Highlights Presented compression, shear, and flexure test results of fibre reinforced CSRE. Coir fibre inclusion avoids brittle failures noticed in plain CSRE under compression. Increases the splitting tensile strength of CSRE by 30–40%. Greatly enhances the straining and energy absorption capacity under compression and shear.
Abstract Cement stabilised rammed earth (CSRE) is used for load-bearing walls in buildings and other structures. There is an upsurge in interest for using CSRE constructions worldwide in the last six to seven decades. The CSRE wall elements in a structure undergo sudden catastrophic shear failures under the compression and shear loadings and exhibit brittle flexure failures under out of plane bending. The brittle failures should be avoided in the structural wall elements. The limited studies on the fibre reinforced CSRE reveal that the addition of fibres can enhance the material's mechanical properties and help prevent sudden catastrophic failures. However, the studies on the fibre reinforced CSRE are still in nascent stage. The behaviour of fibre reinforced CSRE under different loading conditions remains an unexplored area. The present study attempted to understand the behaviour of fibre reinforced CSRE under compression, tension, and shear. The investigations revealed that the addition of short coir fibres significantly increases the failure strains and the energy absorption capacity of CSRE under compression and in-plane shear, eliminating the sudden catastrophic shear failures observed in the plain CSRE. The coir fibre inclusion, although partially increases the compression and the shear strength of CSRE, it significantly enhances the splitting tensile strength and post peak response.
Behaviour of plain and fibre reinforced cement stabilised rammed earth under compression, tension and shear
Graphical abstract Display Omitted
Highlights Presented compression, shear, and flexure test results of fibre reinforced CSRE. Coir fibre inclusion avoids brittle failures noticed in plain CSRE under compression. Increases the splitting tensile strength of CSRE by 30–40%. Greatly enhances the straining and energy absorption capacity under compression and shear.
Abstract Cement stabilised rammed earth (CSRE) is used for load-bearing walls in buildings and other structures. There is an upsurge in interest for using CSRE constructions worldwide in the last six to seven decades. The CSRE wall elements in a structure undergo sudden catastrophic shear failures under the compression and shear loadings and exhibit brittle flexure failures under out of plane bending. The brittle failures should be avoided in the structural wall elements. The limited studies on the fibre reinforced CSRE reveal that the addition of fibres can enhance the material's mechanical properties and help prevent sudden catastrophic failures. However, the studies on the fibre reinforced CSRE are still in nascent stage. The behaviour of fibre reinforced CSRE under different loading conditions remains an unexplored area. The present study attempted to understand the behaviour of fibre reinforced CSRE under compression, tension, and shear. The investigations revealed that the addition of short coir fibres significantly increases the failure strains and the energy absorption capacity of CSRE under compression and in-plane shear, eliminating the sudden catastrophic shear failures observed in the plain CSRE. The coir fibre inclusion, although partially increases the compression and the shear strength of CSRE, it significantly enhances the splitting tensile strength and post peak response.
Behaviour of plain and fibre reinforced cement stabilised rammed earth under compression, tension and shear
Rathod, R. Sri Bhanupratap (author) / Reddy, B.V. Venkatarama (author)
2022-06-11
Article (Journal)
Electronic Resource
English
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