A sulphonated oil for stabilisation of expansive soils
Amin Soltani, An Deng, Abbas Taheri, Mehdi Mirzababaei
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING | TAYLOR & FRANCIS LTD | Published : 2019
The efficiency of a commercially manufactured sulphonated oil (SO) agent in treating a highly expansive soil was investigated through an extensive experimental program. A total of six SO to water mass concentrations, i.e. 0.25, 0.5, 0.75, 1, 1.25 and 2.5%, were examined. The test program included swell–load oedometer, unconfined compressive strength and cyclic wetting and drying tests. SO-stabilisation amended the soil’s mechanical behaviour through improvements achieved in swelling and strength characteristics. The reduction in swelling potential and swelling pressure was dependent on SO concentration, while the effect of curing time was found to be insignificant. A similar dependency was c..View full abstract
The authors wish to thank the reviewers for their constructive comments and recommendations, which have added to the value and clarity of the paper. Special thanks goes to Prof. Asuri Sridharan of the Indian National Science Academy (INSA) for valuable suggestions to the authors. Funding support provided by the Australian Research Council (ARC) is gratefully acknowledged.