Prediction by Improving the Characteristics of Compaction and Strength in the Expansive Soils According to its Content of Sand

Authors

  • Munzer Alzawi Tishreen University
  • Safwan Abdullah Tishreen University
  • Jihad Ibraheem Tishreen University
  • Ammar Alnemr Tishreen University

Keywords:

clay, additive material, mechanical characteristics, physical properties, improvement.

Abstract

Clayey soils often showed undesirable mechanical and physical characteristics such as low bearing capacity, swelling and shrinkage characteristics. To overcome on the problems of expansive clayey soils we tend to improve their physical properties and mechanical behavior by adding various percentages of sand as a weight of soil to evaluate its effect on the following characteristics: soil texture (aterberg limits), dry density and optimum moisture (Standard Proctor test), strength and stiffness (unconfined pressure and Consolidation tests) and permeability. The obtained results refer to appreciably improvement in soil texture, strength, stiffness, permeability and volumetric changes. In addition to a significant variation in the moisture-density relationship. It is found that the optimum percentage of adding sand should not be less than 30% in the soil tested to be used in civil constructions.

Author Biographies

Munzer Alzawi, Tishreen University

Professor, Department of Geotechnical Engineering, Faculty of Civil Engineering

Safwan Abdullah, Tishreen University

Assistant Professor, Department of Geotechnical Engineering, Faculty of Civil Engineering

Jihad Ibraheem, Tishreen University

طالب دراسات عليا (دكتوراه) - قسم الهندسة الجيوتكنيكية, كلية الهندسة المدنية

Ammar Alnemr, Tishreen University

Postgraduate Student(PhD), Department of Geotechnical Engineering, Faculty of Civil Engineering,

Published

2020-12-02

How to Cite

1.
Alzawi M, Abdullah S, Ibraheem J, Alnemr A. Prediction by Improving the Characteristics of Compaction and Strength in the Expansive Soils According to its Content of Sand. Tuj-eng [Internet]. 2020Dec.2 [cited 2022May16];42(5). Available from: http://journal.tishreen.edu.sy/index.php/engscnc/article/view/10063