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Title: Investigating Mechanical Properties of Crumb Tire-Sand Mixtures for Kuwait Soil
Authors: Anfal A. Ashkanani 
Supervisor: Dr. Waleed A. Al-Abdullah
Keywords: Crumb, Tire-Sand Mixtures , Kuwait Soil
Issue Date: 2016
Publisher:  Kuwait university - college of graduate studies
Abstract: Volumes of waste tires are increasing yearly. Due to the fact that waste tires are non-biodegradable, they are considered environmentally undesirable materials. In this research, the reuse of scrap tires was adopted to make it environmentally and economically advantageous by shredding and mixing crumb tire with local sandy soil at different percentages. The aim of the investigation for using crumb tires in reinforcing the sandy soil of Kuwait is to study the feasibility of using the mixture in different applications such as backfilling, retaining wall and embankment fill. Mixtures of crumb waste tire with sand of several percentages (10%, 20% and 30%) by weight of dry sand had been tested in the laboratory for compaction, direct shear and California Bearing Ratio (CBR) tests. Results of compaction tests showed that as the percentage of crumb tire particles in the soil increased, the maximum unit weight and the optimum moisture content decreased. CBR test results indicate that increasing the crumb tire waste percentage decreased CBR value from 29.8 to 18. The obtained CBR value was found to be not suitable for road base applications since it fell below the allowable limit of Kuwait’s Ministry of Public Work standard. The angle of friction for sand increased by 6.25% to reach a maximum angle of 34° with 20% by weight of crumb tire added. In conclusion, the optimum percentage of crumb waste tire for Kuwait’s sandy soil is 20% by weight based on direct shear test.
Appears in Programs:0620 Civil Engineering

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