TITLE:
Enhancing the Geotechnical Properties of Black Cotton Soil with Granite Powder Addition
AUTHORS:
Omer Abdelaziz, Ebtihaj Abu-Elgasim, Abdelrahman Ali, Abdeldin Adam, Hayat Mohammed Jemal
KEYWORDS:
Black Cotton Soil, Granite Powder, Soil Improvement, Expansive Soil, Swelling Behavior, Shrinkage Limit, Compaction Characteristics, Soil Stabilization, Mechanical Properties, Load-Bearing Capacity
JOURNAL NAME:
Open Journal of Civil Engineering,
Vol.15 No.4,
September
30,
2025
ABSTRACT: This study investigates the effect of adding granite powder to black cotton soil, focusing on its impact on the strength and mechanical properties of the soil. Different percentages of granite powder (5%, 10%, 15%, and 20%) were added to the soil, and various laboratory tests were performed to evaluate soil properties, including shrink-swell behavior, compaction, and Atterberg limits. The results show significant improvements in the mechanical properties of the soil, with the highest enhancement observed at a 20% granite powder addition. The study also explores the potential of granite powder to reduce soil swelling and shrinkage, enhance compaction characteristics, and increase the soil’s ability to bear load. The findings of this study contribute to understanding the potential of using granite powder as a soil stabilizer in geotechnical engineering applications, particularly for improving soil stability in construction and agricultural projects.