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A platform for research: civil engineering, architecture and urbanism
Performance Evaluation of Scrap Rubber-Sand Mixture Reinforced with Geogrids
The disposal of scrap tires is one of the major environmental issues in recent years. Several experimental studies proved that scrap rubber-sand mixture can be effectively used as reinforced backfill material in retaining structures which is common in transportation projects. However, studies on interaction properties between rubber-sand mixture and geosynthetics are needed for effective backfill designing. Hence, this study is mainly focused to evaluate the shear behavior of rubber-sand mixture with various rubber contents and also estimates the interface shear strength properties of rubber-sand mixture with geogrid reinforcement when this material is used in mechanically stabilized retaining walls. The large direct shear tests were conducted on the rubber-sand mixture for rubber contents varied from 10 to 50% by volume. The influence of the different sizes of scrap tires and normal stresses on the strength characteristics was also studied. It was observed that the maximum peak strength was obtained for a rubber content of 30%, and there is a significant increase in shear strength with an increase in the size of rubber. The interface shear strength responses of the rubber-sand mixture and geogrid showed that there is no significant difference in the interfacial frictional strength when the rubber-sand mixture is reinforced with geogrids and it is independent of the size of the rubber particles in the mixture which enhances the usage of bigger rubber shreds. The findings lead to a sustainable as well as the cost-effective design of retaining structures.
Performance Evaluation of Scrap Rubber-Sand Mixture Reinforced with Geogrids
The disposal of scrap tires is one of the major environmental issues in recent years. Several experimental studies proved that scrap rubber-sand mixture can be effectively used as reinforced backfill material in retaining structures which is common in transportation projects. However, studies on interaction properties between rubber-sand mixture and geosynthetics are needed for effective backfill designing. Hence, this study is mainly focused to evaluate the shear behavior of rubber-sand mixture with various rubber contents and also estimates the interface shear strength properties of rubber-sand mixture with geogrid reinforcement when this material is used in mechanically stabilized retaining walls. The large direct shear tests were conducted on the rubber-sand mixture for rubber contents varied from 10 to 50% by volume. The influence of the different sizes of scrap tires and normal stresses on the strength characteristics was also studied. It was observed that the maximum peak strength was obtained for a rubber content of 30%, and there is a significant increase in shear strength with an increase in the size of rubber. The interface shear strength responses of the rubber-sand mixture and geogrid showed that there is no significant difference in the interfacial frictional strength when the rubber-sand mixture is reinforced with geogrids and it is independent of the size of the rubber particles in the mixture which enhances the usage of bigger rubber shreds. The findings lead to a sustainable as well as the cost-effective design of retaining structures.
Performance Evaluation of Scrap Rubber-Sand Mixture Reinforced with Geogrids
Lecture Notes in Civil Engineering
Anjaneyulu, M. V. L. R. (editor) / Harikrishna, M. (editor) / Arkatkar, Shriniwas S. (editor) / Veeraragavan, A. (editor) / Anjali, K. P. (author) / Varghese, Renjitha Mary (author)
Recent Advances in Transportation Systems Engineering and Management ; Chapter: 34 ; 519-531
2022-11-11
13 pages
Article/Chapter (Book)
Electronic Resource
English
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