Swelling Soil Stabilized with Sand

Authors

Mohamed Sakr Prof, Tanta university- faculty of engineeringFollow
Mostafa El sawaf Prof, Tanta university- faculty of engineeringFollow
Ashraf Nazir Prof, Tanta university- faculty of engineeringFollow
Khloud Mohamed Ali, Tanta University - Faculty of EngineeringFollow

Abstract

This paper presents the study of swelling soil and its recurrent volume changes with the variation of moisture content. This soil has a unique shrink-swell behavior which changes along with variation in soil water content reducing the strength that can damage a structure. Controlling the swelling potential of soil is one of the important criteria to the civil engineers. Several attempts are being made all over the world to improve the swell-shrink phenomenon of swelling soil. The present paper attempts to study the improvement of the swelling soil with EPS geofoam layer and with sand as a layer and as soil-sand mixture. Various tests have been performed such as sieve analysis, standard proctor test, Atterberg limits, one- dimensional oedometer, and free swell index. in the laboratory on both natural and treated soil. These tests were performed at the geotechnical engineering research laboratory, Tanta University. From the obtained results of the experimental testing program, it is observed that the engineering properties of the swelling soil are improved effectively and the swelling pressure is substantially reduced, as the percent of sand increased. From the obtained results, it was found that adding sand could considerably decrease the swelling pressure of the tested soil from 520 kN/m² to nearly 320 kN/m².

Recommended Citation

Sakr, Mohamed Prof; El sawaf, Mostafa Prof; Nazir, Ashraf Prof; and Ali, Khloud Mohamed (2024) "Swelling Soil Stabilized with Sand," Journal of Engineering Research: Vol. 8: Iss. 3, Article 26.
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol8/iss3/26