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Shear strength characteristics of geosynthetic reinforced rubber-sand mixtures
https://orcid.org/0000-0003-1496-9974
https://orcid.org/0000-0001-9804-5423
Abstract Shear strength characteristics of the geosynthetic-reinforced rubber-sand mixture (RSM) has been investigated by conducting Unconsolidated Undrained (UU) triaxial test. In the first part, a series of UU triaxial tests have been carried out to know the size effect of granulated rubber/tyre chips from seven different rubber sizes. RSM sample that provides higher strength, energy absorption capacity and stiffness is considered as the optimal size and has been used in the investigation on geosynthetic-reinforced RSM. In the second part, shear strength characteristics of geosynthetic-reinforced RSM has been investigated by varying proportions of rubber content (50% and 75% rubber by volume), type of geosynthetic (geotextile, geogrid and geonets), number of geosynthetics (1–4) layers, geosynthetic arrangement and confining pressure. The results demonstrate that RSM reinforced with geosynthetic has enhanced peak strength, failure strength and corresponding axial strain at failure. Fifty percent RSM reinforced by geotextile and 75% RSM reinforced by geonets with 4 layers of reinforcement, led to a maximum increase in shear strength. The strength and energy absorption capacity are doubled for the reinforced RSM's, and reduced the brittleness index values as close to zero, which depends on the type, number of layers and arrangement of geosynthetic.
Highlights UU tests are carried out to estimate composite Shear strength characteristics of RSM. Optimum RSM is selected by higher strength, energy absorption capacity and stiffness. Shear strength characteristics of geosynthetic-reinforced RSM has been studied. Reinforced RSM enhances peak strength, failure strength and axial strain at failure. Strength characteristics and energy absorption capacity of reinforced RSM's, are doubled and reduced the brittleness index values.
Shear strength characteristics of geosynthetic reinforced rubber-sand mixtures
https://orcid.org/0000-0003-1496-9974
https://orcid.org/0000-0001-9804-5423
Abstract Shear strength characteristics of the geosynthetic-reinforced rubber-sand mixture (RSM) has been investigated by conducting Unconsolidated Undrained (UU) triaxial test. In the first part, a series of UU triaxial tests have been carried out to know the size effect of granulated rubber/tyre chips from seven different rubber sizes. RSM sample that provides higher strength, energy absorption capacity and stiffness is considered as the optimal size and has been used in the investigation on geosynthetic-reinforced RSM. In the second part, shear strength characteristics of geosynthetic-reinforced RSM has been investigated by varying proportions of rubber content (50% and 75% rubber by volume), type of geosynthetic (geotextile, geogrid and geonets), number of geosynthetics (1–4) layers, geosynthetic arrangement and confining pressure. The results demonstrate that RSM reinforced with geosynthetic has enhanced peak strength, failure strength and corresponding axial strain at failure. Fifty percent RSM reinforced by geotextile and 75% RSM reinforced by geonets with 4 layers of reinforcement, led to a maximum increase in shear strength. The strength and energy absorption capacity are doubled for the reinforced RSM's, and reduced the brittleness index values as close to zero, which depends on the type, number of layers and arrangement of geosynthetic.
Highlights UU tests are carried out to estimate composite Shear strength characteristics of RSM. Optimum RSM is selected by higher strength, energy absorption capacity and stiffness. Shear strength characteristics of geosynthetic-reinforced RSM has been studied. Reinforced RSM enhances peak strength, failure strength and axial strain at failure. Strength characteristics and energy absorption capacity of reinforced RSM's, are doubled and reduced the brittleness index values.
Shear strength characteristics of geosynthetic reinforced rubber-sand mixtures
https://orcid.org/0000-0003-1496-9974
https://orcid.org/0000-0001-9804-5423
Abstract Shear strength characteristics of the geosynthetic-reinforced rubber-sand mixture (RSM) has been investigated by conducting Unconsolidated Undrained (UU) triaxial test. In the first part, a series of UU triaxial tests have been carried out to know the size effect of granulated rubber/tyre chips from seven different rubber sizes. RSM sample that provides higher strength, energy absorption capacity and stiffness is considered as the optimal size and has been used in the investigation on geosynthetic-reinforced RSM. In the second part, shear strength characteristics of geosynthetic-reinforced RSM has been investigated by varying proportions of rubber content (50% and 75% rubber by volume), type of geosynthetic (geotextile, geogrid and geonets), number of geosynthetics (1–4) layers, geosynthetic arrangement and confining pressure. The results demonstrate that RSM reinforced with geosynthetic has enhanced peak strength, failure strength and corresponding axial strain at failure. Fifty percent RSM reinforced by geotextile and 75% RSM reinforced by geonets with 4 layers of reinforcement, led to a maximum increase in shear strength. The strength and energy absorption capacity are doubled for the reinforced RSM's, and reduced the brittleness index values as close to zero, which depends on the type, number of layers and arrangement of geosynthetic.
Highlights UU tests are carried out to estimate composite Shear strength characteristics of RSM. Optimum RSM is selected by higher strength, energy absorption capacity and stiffness. Shear strength characteristics of geosynthetic-reinforced RSM has been studied. Reinforced RSM enhances peak strength, failure strength and axial strain at failure. Strength characteristics and energy absorption capacity of reinforced RSM's, are doubled and reduced the brittleness index values.
Shear strength characteristics of geosynthetic reinforced rubber-sand mixtures
Manohar, D.R. (author) / Anbazhagan, P. (author)
Geotextiles and Geomembranes ; 49 ; 910-920
2020-12-31
11 pages
Article (Journal)
Electronic Resource
English
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