Consistency limits and compaction characteristics of clays soils containing rubber waste
Date
2019
Authors
Soltani, A.
Deng, A.
Taheri, A.
Sridharan, A.
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Journal article
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Proceedings of the Institution of Civil Engineers: Geotechnical Engineering, 2019; 172(2):174-188
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Amin Soltani, An Deng, Abbas Taheri Asuri, Sridharan
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Abstract
The study reported in this paper aimed to develop practical correlative models capable of predicting the compaction characteristics of clay soils blended with rubber from waste vehicle tyres. Four different clay soils, ranging from intermediate to high plasticity, were adopted for the test programme and each was blended with four different percentages of ground rubber waste. The test programme consisted of cone penetration and standard Proctor compaction tests. As a result of ground rubber inclusion, the consistency limits and compaction characteristics all exhibited a linear decreasing trend with increase in rubber content. The rate of decrease, however, was greater for the high plasticity clays. Simple correlative models were suggested and validated by statistical techniques. The proposed models provide a practical procedure towards predicting the compaction characteristics of ground-rubber–clay blends without the hurdles of conducting laboratory compaction tests, and thus can be implemented in practice for preliminary assessments.
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