Vol 13 Issue 2 October 2025-March 2026

Abstract: This study presents an overview of soil types, their physical and chemical properties, behavior, and significance in construction works. It also reviews commonly used materials for stabilizing expansive clay soils and provides a brief background on sugarcane bagasse ash.

The primary objective of this research was to assess the feasibility of utilizing bagasse ash as a stabilizing agent for expansive clay soils. A series of laboratory tests were conducted, including sieve analysis, Atterberg limits (liquid and plastic limits), compaction tests, and unconfined compressive strength tests. Experimental investigations were carried out on expansive clay soil samples collected from the Kafouri and Khartoum east areas. Bagasse ash was added to the soil at replacement levels of 5%, 10%, and 15% by weight. The results indicated a noticeable reduction in the liquid limit and plasticity index with increasing bagasse ash content, reflecting an improvement in soil workability. Additionally, the maximum dry density showed a slight decrease, while the optimum moisture content increased with higher percentages of bagasse ash. The unconfined compressive strength of the stabilized soil exhibited a significant improvement, with the optimum performance observed at a specific bagasse ash content. These findings demonstrate that sugarcane bagasse ash can be effectively utilized as a sustainable and economically stabilizing material for expansive clay soils.

Keywords: soil types, physical and chemical properties, compressive strength, stabilized soil, stabilizing material.

Title: Experimental Study on Stabilizing Expansive Clay Soils Using Bagasse Ash

Author: Bashir H. Osman, Elsafi Mohamed Adam Elbashiry, Abdelrahman Abuserriya, Abu-Bakre A. Elamin

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

Vol. 13, Issue 2, October 2025 - March 2026

Page No: 10-23

Research Publish Journals

Website: www.researchpublish.com

Published Date: 07-February-2026

Abstract: Cross-country oil and gas pipeline projects are essential for sustaining energy security and supporting economic development, yet they involve complex technical, logistical, and environmental challenges. This paper provides an integrated overview of the critical success factors that enable effective delivery of mega-scale pipeline deployments. Key focus areas include advanced engineering design adapted to diverse geotechnical conditions, efficient procurement and supply chain strategies, and disciplined construction management methodologies. The study highlights the importance of proactive safety practices, digital project controls, and strong coordination with regulatory authorities and third-party stakeholders. By consolidating lessons learned from major pipeline projects, the paper offers a practical framework that enhances performance, minimizes risk, and ensures safe and timely execution from planning through commissioning.

Keywords: Mega-Scale Pipelines, Cross-Country Deployment, Project Management, Safety and Risk, Engineering Design, Procurement.

Title: Mastering Success in Mega-Scale Cross-Country Oil & Gas Pipeline Deployment

Author: Eng. Abdullah Abu Alayim

International Journal of Civil and Structural Engineering Research  

ISSN 2348-7607 (Online)

Vol. 13, Issue 2, October 2025 - March 2026

Page No: 1-9

Research Publish Journals

Website: www.researchpublish.com

Published Date: 30-October-2025