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The Effect Of Sodium Sulphate Contamination On Engineering Properties Of Lateritic Soil
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3.3.4 CALIFONIA BEARING RATIO TEST
The CBR is a penetration test for evaluating mechanical strength of road sub-grade and base courses. It was developed by California department of transportation before world war II.
The CBR value is simply the resistance to a penetration 2.54mm of a standard cylindrical plunger of 49.6mm diameter expressed as a percentage of the known resistance of the plunger to various penetration in crushed aggregates.
APPARATUS USED
• Hand towel
• Miscellaneous apparatus
• Steel collar
• BS test sieve
• Surcharge weight
• Loading machine
• Cylindrical steel mould
PROCEDURE
• CBR value was then obtained.
• Load was applied and the penetration load values were noted.
• The specimen was placed under the penetration piston and surcharge load was placed on it.
• Mould+ compacted specimen was weighed.
• Sample was taken for determination of moisture content.
• After the compaction, the collar was removed and leveled to the surface.
• Water was added to the first specimen and compacted.
• The empty cylindrical steel mould were weighed.
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT COMING SOON ... Continue reading---
APPENDIX A - [ Total Page(s): 3 ] ... Continue reading---
CHAPTER ONE - [ Total Page(s): 2 ]CHAPTER ONE1.0 INTRODUCTIONSoil is the cheapest and the most widely used material in civil engineering project as foundation material either in its natural or improved form. It is highly heterogeneous and an isotopic in nature and existing with different engineering properties which can be influenced to some extend by the presence of sodium salts under the influences of water (Olawale, 2013). ... Continue reading---
CHAPTER TWO - [ Total Page(s): 6 ]ReactionNacl(s) +H2SO4aq → NaHSO4aq + HCl1 Then, the sodium hydrogen tetraoxosulphate (vi) react with more sodium chloride to form the sodium tetraoxosulphate (vi)NaHSO4aq + NaClaq → Na2SO4aq + HClg (Michigan, 1990)2.4.2 CHEMICAL PROPERTIES OF SODIUM (II) TETRAOXOSULPHATE (VI) SALT Sodium sulphate (NaSO4) displays a moderate tendency to form double salts which is the only alum formed with common trivated metal which unstable above 39 (degree)C and NaCrSO4 (Soskatc ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 16 ]CHAPTER FOURRESULT ANALYSIS AND DISCUSSION4.1 PARTICLE SIZE DISTRIBUTIONThe result of the particle size distribution “sieve analysis†of the sample is analyzed and presented in the table and figure below. ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 1 ]CHAPTER FIVE5.1 CONCLUSION From the investigations carried out on this work, the following conclusions are made: The laterite sample is classified as Sand Gravel soil according to AASHTO classification system and it is a good sub grade and sub-base material for Civil Engineering construction.The liquid test for unstabilized laterite is 60.31% and for the stabilized of 20% is 50.16,30 % is 46.9% and for 40% is 45.05 and plastic limits test for unstabilized laterite is 36.62% and ... Continue reading---
REFRENCES - [ Total Page(s): 1 ]REFERENCESAbabio, O.Y. (1996), New School Chemistry for Senior Secondary School (2nd edition), Longman publisher, Erands, LondonAbraham, J. (1992), “Introduction to Soil Mechanics†(3rd edition), Macmillan INC, New York.Agbede, O. and osunmolale O. (1997), “All AboutSulphate Salt†Retrieved 2009-10-31â€. From www.ifgworld.org. Agbede, O. and Osunolale O. (2003), “Effect of Ph Contamination on Engineering Properties of Lateritic Soilâ€. Final Year Project i ... Continue reading---
