Utilization of steel slag for stabilization of a lateritic soil
Table Of Contents
Chapter ONE
1.1 Introduction1.2 Background of Study
1.3 Problem Statement
1.4 Objective of Study
1.5 Limitation of Study
1.6 Scope of Study
1.7 Significance of Study
1.8 Structure of the Research
1.9 Definition of Terms
Chapter TWO
2.1 Overview of Soil Stabilization2.2 Types of Soil Stabilization Techniques
2.3 Steel Slag as a Construction Material
2.4 Previous Studies on Steel Slag Utilization
2.5 Environmental Impact of Steel Slag
2.6 Performance of Lateritic Soil
2.7 Benefits of Soil Stabilization
2.8 Challenges in Soil Stabilization
2.9 Factors Affecting Soil Stabilization
2.10 Steel Slag in Soil Stabilization Research
Chapter THREE
3.1 Research Design and Methodology3.2 Selection of Research Participants
3.3 Data Collection Methods
3.4 Experimental Setup
3.5 Testing Procedures
3.6 Data Analysis Techniques
3.7 Quality Control Measures
3.8 Ethical Considerations
Chapter FOUR
4.1 Analysis of Experimental Results4.2 Comparison of Different Stabilization Techniques
4.3 Effects of Steel Slag on Soil Properties
4.4 Strength and Durability Analysis
4.5 Cost Analysis of Stabilization Methods
4.6 Environmental Impact Assessment
4.7 Case Studies of Steel Slag Utilization
4.8 Future Research Directions
Chapter FIVE
5.1 Summary of Findings5.2 Conclusions
5.3 Implications of the Study
5.4 Recommendations for Future Research
5.5 Contribution to the Field
Project Abstract
A lateritic soil classified as sandy clay or (CL) and A-7-6 (5) according to Unified Soil Classification System (USCS) and AASHTO classification system respectively,was treated with up to 10% pulverized steel slag (an industrial waste product) by dryweight of soil. Elemental and chemical analysis of the steel slag was determined using x-ray fluorescence spectroscopy. Tests were carried out to determine the index properties, compaction characteristics (maximum dry density, MDD and optimum moisture content, OMC), strength characteristics (California bearing ratio, CBR and unconfined compressive strength, UCS) and permeability of the natural and treated soil. Test results show that Atterberg limits (liquid limit, plastic limit and plasticity index) generally decreased, while specific gravity of soil ” steel slag mixtures increased with higher steel slag content; MDD and OMC increased and decreased, respectively, with higher steel slag content. Generally, CBR and UCS increased up to 8% steel slag treatment of the soil. Permeability of soil ” steel slag mixtures increased with higher steel slag content. Based on laboratory test results, an 8 % optimal stabilization of the A-7-6 soil with steel slag satisfactorily meets the Federal Republic of Nigerian General Specifications (Roads and Bridges) requirement for subgrade materials.
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