Journal of Materials and Engineering Structures
Volume 4, Numéro 1, Pages 37-50
2017-03-31
Assessment Of Geotechnical Properties Of Uncemented/cemented Clayey Soil Incorporated With Waste Crumb Rubber
Authors : Yadav J.s. . Tiwari S.k. .
Abstract
Discarded waste tires are becoming a serious threat to health, environment, and ecological systems worldwide if it is not disposed of properly. Every year 1000 million of waste tires are discarded. This number may grow up to 1200 million by the year 2030. On the other hand, construction of civil engineering structures such as buildings, dams, highways, etc. are at high risk of differential settlement, especially in the case of weak or soft clay, which is due to its low shear strength and high compressibility. The paper aims to assess geotechnical properties of uncemented/cemented clayey soil incorporated with waste crumb rubber. Compaction parameters, unconfined compressive strength, split tensile strength, toughness index, CBR values and swelling pressure of rubberized uncemented/cemented clayey soil (3%, and 6% cement and different percentage of crumb rubber) have been obtained. After rigorous extensive study, it has been concluded that unconfined compressive strength and split tensile strength of rubberized cemented clayey soil decreases with the increase of the percentage of crumb rubber whereas the axial, and diametral strain are found to be increased with the addition of crumb rubber up to 5% after that it starts to decrease. The CBR values, swelling pressure, and toughness index of uncemented/cemented clayey soil was significantly affected by incorporation of crumb rubber. SEM studies have also been incorporated in this investigation.
Keywords
Waste tire-clay mixtures, Compaction parameters, Unconfined compressive strength, Split tensile strength, California bearing ratio, Swelling pressure, Scanning electron microscopy
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