ABSTRACT
This project investigates the primary causes of Road Pavement Failure and Possible Solution (a case study of Iree-Ibokun road). Various tests are carried out on soil samples colleted from failed areas of the road such as CBR test, sieve analysis test, liquid limit, Plastic limit test, Plastic index test and compaction test. The foundation failures of the road pavement observed are caused by excess ground water penetrated into the base and sub-base courses and geotechnical properties of the soil were also responsible for the failure of the road pavement such as: inadequate compaction, water infiltration through edge break, lack of adequate drainage and unsuitable soil. From location A,B and C the results of sieve analysis ranges from liquid limit (LL) is 51-20% Plastic limit (PL) is 31.11% and plastic index is 20.89% respectively, CBR of the sample ranges from 24%, – 26% respectively. The values are not meet the requirement of sub-base and base courses which suppose to have not less than 80% respectively. To obtain optimum performance of the road, the causes identified above should be corrected
TABLE OF CONTENTS
TITLE PAGE
CERTIFICATION
DEDICATION
ACKNOWLEDGEMENT
TABLE OF CONTENT
ABSTRACT
CHAPTER ONE
1.0 INTRODUCTION
1.1 PROBLEM OF THE STUDY
1.2 PURPOSE OF THE STUDY
1.3 OBJECTIVES
1.4 SCOPE OF THE STUDY
1.5 LIMITATION OF THE STUDY
1.6 DEFINITION OF TERMS
CHAPTER TWO
2.0 LITERATURE REVIEW
2.1 DEFINITION OF WASTES
2.2 SOURCES OF SOLD WASTES
2.3 COMMERCIAL AND INSTITUTIONAL WASTES
2.4 INDUSTRIAL SOLID WASTES
2.5 PHYSICAL AND CHEMICAL HAZARD OF SOLID WASTES
2.6 WATER POLLUTION FROM SOLID WASTES
2.7 SOURCES OF WATER
2.8 PHYSICAL PROPERTIES OF WATER
2.9 EFFECT OF RAIN WATER ON UNDER GROUND WATER
2.10 COLOR DETERMINATIONS
2.11 TOTAL SUSPENDED SOLID WASTES (TSS) TOTAL DISSOIVED SOLID WASTES (TDS)
2.12 TOTAL DISSOLVED SOLID WASTES (TDS)
2.13 DISSOIVED OXYGEN (DO)
2.14 TYPE OF WASTES AND ITS CONSTITUENTS
2.15 SOLID WASTES EFFECT AND CONTROL ON UNDERGROUD WATER.
2.16 TREATMENT AND MANAGEMENT OF WASTES
CHAPTER THREE
3.0 RESEARCH METHODOLOGY
3.1 PHYSICAL OBSERVATION OF THE STUDY AREAS
3.2 METHOD OF DATA ANALYSIS
CHAPTER FOUR
4.0 DATA ANALYSIS
4.1 METHOD OF LABORATORY TESTS ON PH, TEMPERATURE, CONDUCTIVITY, ALKALINITY, TOTAL HARDNESS, CHLORINE AND BACTERIOLOGICAL TEST OF THE WATER SAMPLE.
4.2 DISCUSSION OF RESULTS
CHAPTER FIVE
5.0 SUMMARY
5.1 CONCLUSION
5.2 RECOMMENDATION
5.3 APPENDICES
5.4 REFERENCES
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