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The Effect Of Partial Replacement Of Conventional Fine Aggregate (sand) With Lateritic Soil In The Production Of Sandcrete Bricks
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2.8.5 Mineralogical Composition of Laterite
The mineralogical and composition of laterite are dependent on their parent rocks. Laterites consist mainly of quartz and oxides of titanium, zircon, iron, tin, aluminum, and magnesium which remain during the course of weathering (Tardy, 2000). Quartz is the most abundant rock mineral from the parent rock. Laterites very significantly accordingly to their location, climate and depth. The main host materials for nickel and cobalt can be either iron oxides or clay mineral or manganese oxides, iron oxides are derived from mafic igneous rock and other iron – rich rocks, bauxite are derived from granitic igneous rock and other iron –poor rock (Yamaguchi, 2010). Nickel laterites occur in zone of the earth which experienced prolonged tropical weathering of ultramafic rocks containing the ferro-magnetic mineral olivine, pyroxene and amphibole (Dalvi et al, 2004).
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT WILL BE HERE SOON ... Continue reading---
CHAPTER ONE - [ Total Page(s): 2 ]CHAPTER ONE1.0 Introduction Lateritic soils are formed in hot, wet tropical regions with an annual rainfall between 750 to 300mm, (usually in areas with a significant dry season) on a variety of different types of rock with high iron content. The location on the earth, that characterize these conditions fall between latitude 35oS and 35oN (Person, 1970).Laterisation is the removal of silicon through hydrolysis and oxidation that result in the formation of laterite and lateritic soil ... Continue reading---
CHAPTER THREE - [ Total Page(s): 7 ]ProcedureAbout 200g of soil sample was passed thoroughly with distilled water to form a uniform paste. A portion of the paste was placed in a brass trough bar (linear shrinkage trough device). The surface of sample was leveled and smoothened off to the brass of the trough bar and the trough was then placed in an oven for 24 hours at temperature of about 105°C. The initial length of the trough bar filled with the soil sample was taken. After 24 hours, the trough bar was brought out of the oven ... Continue reading---
CHAPTER FOUR - [ Total Page(s): 15 ]PERCENTAGE OF STABILIZER ... Continue reading---
CHAPTER FIVE - [ Total Page(s): 1 ]CHAPTER FIVE5.0 CONCLUSIONS, REFERENCE AND RECOMMENDATION. 5.1 Conclusion. Tests have been conducted to evaluate the suitability of lateritic soils along Asa dam area Ilorin kwara state and its effect on the strength of sandcrete bricks when used to replace the conventional fine aggregate, the following conclusions can be drawn from the analysis of the results: I. The use of lateritic fine as a partial replacement has a significant influence on the engineering pro ... Continue reading---
REFRENCES - [ Total Page(s): 3 ]REFERENCESAdam, E. A. (2001): Compressed Stabilised earth block manufactured in sudan, A. Publication for UNESCO (online) Available from http://unesdoc.unesco.org.Adepegba, D.A. (1975). “Comparative Study of Normal Concrete which contains Laterite Fines instead of Sand†Building Science; 10:135-41.Agbede, I.O. and Manasseh, V. (2008): use of cement sand admixture in lateritic brick production for low cost housing Leonardo electric Journal of practices and technology, 12, pp163-174.Ak ... Continue reading---
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ABSRACT - [ Total Page(s): 1 ]ABSTRACT WILL BE HERE SOON ... Continue reading---