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The Effect Of Sodium Sulphate Contamination On Engineering Properties Of Lateritic Soil
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CHAPTER THREE
3.0 METHODOLOGY
3.1 PROCUREMENT OF MATERIAL
Sodium II Tetraoxosulphate (VI) salt was produced from a market in Ilorin.
3.2 COLLECTION OF SAMPLES
The sample was collected from a burrow pit in Ilorin and was divided into four portions labeled A to D, portion A was not contaminated, it serves as control, while portion B, C and D were contaminated with 20g, 30g and 40g of sodium sulphate respectively. The three contaminated portions were kept for seven days before the following laboratory tests were carried on the soil sample “the four portionsâ€
• Particle size distribution
• Atterberg’s limit test
• Compaction test
• Califonia bearing ration
3.3 EXPERIENTAL INVESTIGATIONS
3.3.1 PARTICLE SIZE DISTRIBUTION
The particle size distribution test was done by dry sieving and this method covers the quantitative determination of the particle size distribution in soil down to the fine sand size.
APPARATUS USED
• Set of British standard test sieves
• Weight pan
• Sieve shaker
• A balance readable and accurate to 0.001g weighing machine
PROCEDURE
• The test sample is dried in the oven and weighed
• The sample poured in the B.S set of sieves arranged in descending order (each sieve weight has been determined).
• The set of sieves was shaken by sieve shaker. On completion of the sieving, each sieve was weighted.
• The cumulative weight passing through each sieve was calculated as a percentage of the total sample weighted.
• Fineness modulus obtained by adding cumulative percentage of aggregate retained on each sieve and dividing the sum by 100.
• The result was then analyzed.
3.3.2 ATTERBERG’S LIMIT TEST
The atterberg’s limits are basic measure of the nature of a grained soil depending on the water content of the soil; it may appear in four state: solid, semi-solid, plastic and liquid. In each state, the consistency behaviors of soil is different and thus so are its engineering properties. The Atteberg’s Limits are; liquid limit, plastic limit, plastic index.
APPARATUS
• A flat plate of size 500mm×500mm×100mm
• Two palette knives
• A casangrade liquid limit apparatus
• Grooving knife
• Moisture content tin
• A wash bottle containing distilled water
• 300um (microne) BS test seive
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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---
