Stabilization of Railway Right of Way Silty Soil Using Shredded Rubber Tyre
  • Author(s): Lawal Abba Adamu ; John E. Sani ; A. Y. Abdufatah
  • Paper ID: 1709292
  • Page: 1156-1165
  • Published Date: 23-06-2025
  • Published In: Iconic Research And Engineering Journals
  • Publisher: IRE Journals
  • e-ISSN: 2456-8880
  • Volume/Issue: Volume 8 Issue 12 June-2025
Abstract

As rail modernization in Nigeria experiences a breakthrough in achieving one of its most remarkable milestone, railway embankment faces significant challenges due to the unsuitable soil for its subgrade. Little research has been successfully done to stabilize the silty soil for railway subgrade. The aim of this study is to stabilise the right of way silty-soil using shredded rubber tyre. The soil was collected at DK967+200 from the right-of-way of the Kaduna-Kano Railway Modernization Project at Zawaciki Kumbotso Local Government Area of Kano State, the shredded rubber tyre was collected from a local tyre rethreding center. The mixed sample were subjected to Standard Proctor Test, California Bearing ratio (CBR) unsoaked and Unconfined Compression Strength (UCS) tests. The test results of the studied soil indicate a significant improvement of CBR and strength parameters. The result shows a significant improvement in the strength parameters with the addition of shredded rubber. The Maximum Dry Density (MDD) decreased with increasing Optimum Moisture Content (OMC), while the unsoaked CBR values increased from 18.9% to 47.1% for BSH and 27.9% to 48.3% for BSL at 8% Shredded tyre addition. The UCS values increased from 140 kN/m² to 320 kN/m² for uncured samples and from 340 kN/m² to 560 kN/m² for cured samples at 8% shredded tyre addition. The regressional analysis performed on the experimental data yielded high coefficients of determination (R² > 0.97), indicating strong correlations and enabling the prediction of optimum rubber content for maximum strength. These findings demonstrate the potential of shredded rubber tyre as an effective additive for silty soil stabilization in railway subgrade construction.

Keywords

Shredded rubber tyre, Carlifornia Bearing Ratio, Unconfined Compressive Strength

Citations

IRE Journals:
Lawal Abba Adamu , John E. Sani , A. Y. Abdufatah "Stabilization of Railway Right of Way Silty Soil Using Shredded Rubber Tyre" Iconic Research And Engineering Journals Volume 8 Issue 12 2025 Page 1156-1165

IEEE:
Lawal Abba Adamu , John E. Sani , A. Y. Abdufatah "Stabilization of Railway Right of Way Silty Soil Using Shredded Rubber Tyre" Iconic Research And Engineering Journals, 8(12)