Document Type

Conference Proceeding


Indian Geotechnical Society


Faculty of Computing, Health and Science


School of Engineering




This article was originally published as: Choudhary, A., Gill, K., Jha, J., & Shukla, S. K. (2012). Improvement in CBR of the expansive soil subgrades with a single reinforcement layer. Proceedings of Indian Geotechnical Conference. (pp. 289-292). New Delhi, India. Indian Geotechnical Society. Conference website available here.


The performance of a pavement is very sensitive to the characteristics of the soil subgrade, which provides a base for the whole pavement structure. It is therefore of utmost importance that the performance of such pavements is improved by adopting proper design and construction methodology. This paper presents the results of a series of California bearing ratio (CBR) and swell tests to evaluate the beneficial effects of placing a single layer of reinforcement horizontally at vmying depths fl·om the top smface of the subgrade soil. The position of the reinforcing layer is optimized for two different types of reinforcement namely, geogrid and jute geotextile. Results revealed that insertion of a single layer of horizontal reinforcement placed within the specimen at cCitain specified depth fi:om the top of the compacted specimen not only controls the swell potential significantly but also improves the CBR value considerably.

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