Aug 30, 2017 table 2 shows the general chemical properties of this additive and the selected laterite soil, which were determined using edax testing. Thirty lateritic soils samples were collected at six major zone within the metropolis of adoekiti. Mineralogical composition of the clay fraction seems to be very important from an engineering point of view and can be used as a means of identification and classification. Akpokodje, 1986 studied the geotechnical properties of non lateritic and lateritic soils in the southeastern part of nigeriaand their evaluations for construction of roads. Geotechnical properties of lateritic overburden materials on. Preliminary test was performed on the unstabilized lateritic soil for the purposes of identification and classification natural moisture content, liquid limits, plastic limits, and plasticity index. A study of the geological and soil maps of nigeria 10,11 show that the samples taken belong to the group of ferruginous tropical soil derived from acid igneous and metamorphic rocks. Among them, the one of alexander and cady 3 is widely accepted. Chemical stabilization of laterite soils for road construction.
Lateritic soil is found in most area of nigeria and constitutes the main construction material for roads, bridges, dams and residential and industrial building. Laterite soil particles are greasy, sticky when wet and hard when dry. Mineralogically, the soil contains virtually nothing undesirable while its basic geotechnical properties are those. A model study on accelerated consolidation of coir. Important properties of clay content of lateritic soils for. Effects of drying on the properties of lateritic soils. The cbr test, triaxial and ucs test are done to find out the properties of the soil stabilized with cement using dosages of 3, 6, 9 and 12 % of weight of untreated lateritic soil. The use of lateritic soils consisting of high plastic clay content results. The work is concerned with the seasonal conditions of laterite deposit due to some geotechnical properties as it. However, laterite soils are different in various characteristics that lead to differences in general properties and behaviour. The knowledge of soil properties can help to better consider what changes, the economic studies cost and time, as well as production and construction techniques to use. Clay is an important component of lateritic soils, especially when assessed for civil. Laterite soils and their stabilization transportation.
Therefore, engineering index properties of laterites and lateritic soils are not reproducible 25. Influence of compaction delay on cement stabilized. A degradacao do ambiente lateritico como aquele encontrado no. The objectives of work reported in this paper are to determine the effect of addition of pozzolan or sawdust in lateritic soil brick on the thermal properties. Study on characteristic of laterite soil with lime. Compressive strength of concrete with laterite aggregate. Origin, occurrence, and correct identification of latente rock and soil are briefly discussed. Factors influencing the development of lateritic and laterite soils in. Research article nature and properties of lateritic soils. Pdf geotechnical properties of lateritic soil as subgrade. Laterite soils which are widespread in tropical areas of india possess unique color and it normally contains high clay content along with inert particles such as silt and sand 1. Bijaksana2, 1faculty of mathematics and natural sciences, institut teknologi bandung, jalan ganesa 10, bandung 402, indonesia 2faculty of mining and petroleum engineering, institut teknologi bandung, jalan ganesa 10, bandung 402. Some properties of a sedimentary laterite soil as engineering. Stabilization, according to ogundipe 20, is the process of blending and mixing materials with a soil to improve certain properties of the soil.
Full length research article assessment of the consolidation properties of compacted lateritic soils stabilized with up to 8% tyre ash were carried out using time dependent one dimensional consolidation test. Csre is a sustainable construction material of desirable strength and durability together with lower life cycle cost. Laterite based stabilized products for sustainable building. Geotechnical properties of lateritic soil from nimo and. Geotechnical properties of termitereworked lateritic soil. Such mineralogical composition has a wide effect on soil properties. Several previous studies on laterite soils by gidigasu 1974gidigasu, 1976 for have demonstrated the susceptibility of laterite soils degradation under load.
Properties of laterites used in low volume roads in kenya in comparison with. Pdf engineering properties of lateritic soils around. Rock magnetic methods in soil and environmental studies. Engineering evaluation of lateritic soils of failed highway. Consolidation properties of compacted lateritic soil treated. Engineering properties of lateritic soils in adoekiti. Lateritic soils that overburden mohammad buhari estate in abeokuta area of ogun state, nigeria is in great use for road construction. Critical pressure and angle of internal friction were more or less constant while. These characteristics and attributes make laterite soil good material for constructing the walls of houses. Several previous studies on laterite soils by gidigasu 1974gidigasu, 1976 for have demonstrated the susceptibility of laterite soils. Engineering property for lateritic soil stabilized with ordinary portland cement. Engineering behavior and classification of lateritic soils. To those in the temperate countries, it could be described as a red friable clay surface. This study considers the influence of compactive energy on certain geotechnical properties of an amphibolite derived laterite soil with respect to the undisturbed soil.
The peculiar properties of latente soils are outlined and. Consolidation properties of compacted lateritic soil. Engineering properties of lateritic soils in adoekiti, south. Failure of lateritic roads in nigeria and other developing countries has stressed the need for detailed geotechnical evaluation of lateritic soil prior its use in road construction in order to choose appropriate soil materials for the pavement structure. It certainly is more appropriate to employ as class ification criterion the silica sesquioxide ratio. Geotechnical properties of undisturbed and compacted.
The engineering properties of stabilized laterite soils depend on. The soils within the entire length of the port harcourt enugu expressway consist ofi concretionary laterite gravels 2 non lateritic tropical sandyclayey soils. Pdf collapse potential of laterite soils editorijee. It is widely used to produce earth blocks, but stabilization is essential for the lateritic soil block to enhance its properties. The properties that make soils unsuitable for construction of. Important properties of clay content of lateritic soils. The physical and engineering properties of lateritic soils have been found to depend on their textural characteristics.
Laterite soils and their engineering characteristics asce library. Assessment of the geotechnical properties of lateritic soils. Engineering behavior and classification of lateritic soils in. Nature and properties of lateritic soils derived from. The geotechnical properties of lateritic and nonlateritic soils of. A better understanding of these properties will enhance the usage of the material in geotechnical engineering works in places where they are abundant. The objective of this study was to investigate the physical, chemical, and mineralogical composition of lateritic soils in order to use these soils as potential. Abstractthe effect of limeguinea corn husk gha ash onthe engineering properties of lateritic soil was assessed. This research explores the effects of gradation on draulic hy conductivity properties of compacted laterite soil to be used in the design of sanitary landfill liner. The results obtained from the assessment of the geotechnical properties of the soil samples will be used to determine the usefulness of the soils in road construction by comparing it to the. Effects of gradation on hydraulic conductivity properties. Air the relative amounts of these three phases are indications of the soils properties and conditions.
Investigating the effects of some geotechnical properties. Lateritic soils in its natural state generally have low bearing capacity and low strength due to high clay content. One of the major causes of road accident is bad road which is usually. World scenario boris volkoff orstom, 72, route daulnay93143, bondy, france abstract calcareous, neutral and acid red soils, red lateritic soils. The chemistry, mineralogy and basic geotechnical properties of some lateritic soils and from southwestern nigeria werealso studied by ogunsanwo, 1988. Laterite soils defined here to include laterites and lateritic soils are among the most commonlyfound tropical soils occurring generally as residual surface. Multipurpose applications of csre in buildings, roads and retaining walls are presented. The basic soil properties including omc optimal moisture content, and mdd maximum drydensity were deter mined. Nearly all laterites are of rustyred coloration, because of high iron oxide content. Furthermore, the lateritic soils are composed of a wide variety of red, brown, and yellow finegrained residual soils of light texture, as well as nodular gravels and cemented soils schellmann, 1994. The soil used is a naturally reddishbrown lateritic soil. Properties, classification and agricultural potentials of. Influence of compaction delay on cement stabilized lateritic soil.
Anlp is located about 47 km northnorthwest of butuan city and 73 km southwest of surigao city. However, little is known of their geotechnical properties and. The research investigated the classification and compaction characteristics of lateritic soils of warri, the economic nerve center of delta state, nigeria. The strength and stability of lateritic soil containing large amounts of clay cannot be guaranteed under load in the presence of moisture 9. They develop by intensive and prolonged weathering of the underlying parent rock. Effects of rice husk ash on some geotechnical properties. Classification and compaction characteristics of lateritic soils of. These properties can be evaluated by correct laboratory or insitu tests. Jan 23, 2016 soil erosion himalayan region, chambal ravines etc. Soil type laterite soil lateritic soil non lateritic soil s1o2r2o3 1. Geotechnical investigation is one of the effective means of detecting and solving pre, syn and post constructional problems. Geochemistry and geotechnical analysis of lateritic soils. Geochemistry and geotechnical analysis of lateritic soils in. Pdf engineering properties of lateritic soils around dall.
Apr 01, 1989 a sedimentary laterite soil is examined for its suitability as a construction material by the consideration of its mineralogy and basic geotechnical properties as well as its consolidation and permeability in the compacted state. Review of specifications for the use of laterite in road. As shown in table 2, the dominant compounds in sh85 are calcium oxide 68. Table 3 shows the properties assigned for laterite and shedi soil respectively. To those in the hilly tropical countries, it could be described as a very hard homogenous vescular. Adt4 termite reworked soil sample 4 adl1 lateritic soil sample 1 adl2 lateritic soil sample 2 4. The word laterite describes no material with reasonable constant properties. With rain, lime and silica are leached away, and soils rich in iron oxide and aluminium compound are left behind. The thermal properties of lateritic soil based materials were determined. Investigation of the index properties of lateritic soil. Physical and mechanical properties of alluvial and laterite soil no soil characteristics unit alluvial soil laterite soil 1 specific gravity gs 2,65 2,62 2 water content w % 38,85 22,25. Concreteblocks made from cement, aggregate sharp sand and water mixed in simple ratio plumb, 1991 form the major component of the walls of modern buildings. Properties such as void ratio, compression index, coefficient of permeability and cohesion showed improvement with increased compaction energy. This study investigates the geotechnical properties of lateritic soils from nimo and nteje areas of anambra state, southeastern nigeria.
Laterites and lateritic soils are generally found in warm, humid, tropical areas of the world. Cement stabilized rammed earth as a sustainable construction. These are the result of intense leaching due to tropical rains. Stabilization of lateritic soil subgrade using cement. The laterite soils develop in areas with high temperature and high rainfall. Laterite and lateritic soils the term laterite was originally used by buchanan 1807 for the highly ferruginous, vesicular and unstratified material observed in the malabar hills of south india. Laterite is a highly weathered material, rich in secondary oxides of iron, aluminum, or both. Laterite soil laterite has been derived from the latin word later which means brick. Also, the lateritic soils are either hard or capable of hardening on exposure to wetting and drying. Laterite soil is a land that has several characteristics, among others.
Lateritic soil in its natural state generally have low bearing capacity and low strength due to high content of clay. If one attempts to find the definition of laterite by searching the literature, he will encounter several different definitions. The understanding of soil behavior in solving engineering and environmental issues as swelling soil especially expansive lateritic soils that can cause significant damage to road construction and other engineering application is the sole aim of geotechnical engineering abubakar, 2006. The investigation includes evaluation of properties such as compaction, consistency limits and strength of the soil with rha content of 5%, 7. The engineering tests were conducted on the lateritic soil stabilized with.
Genetic characteristics compositional factors, such as particlesixe distribution, organic matter content, chemical and mineralogical composition, and physicochemical characteristics etc. The work is concerned with the seasonal conditions of laterite deposit due to some geotechnical properties. Effect of limeguinea corn husk ash on the engineering. A preliminary study of the magnetic propiertes of laterite. Investigating the effects of some geotechnical properties on. Abstractthe determination of the influence of activitie. The geotechnical properties of lateritic soils and their suitability for road construction have been evaluated for selected sites in minna, northcentral nigeria. They are obviously subject to vagdions in other soil. For example, laterite soils containing high percentages of hydrated halloysite, goethite, or gibbsite are known to be problem laterite soils.
Atterberg limits test, grain size analysis test, and compaction test, are carried out on the untreated lateritic soil. Laterite is both a soil and a rock type rich in iron and aluminum and is commonly considered to have formed in hot and wet tropical areas. Laterites are rich in iron oxides, aluminum oxides and low silicates but may contain appreciable amounts of kaolinite and due to the presence of iron oxides. Geotechnical properties of lateritic soil stabilized with. Assessment of the geotechnical properties of lateritic. The laterite and shedi soil fractions were then intermixed 5 times using the technique of quartering. Sandy laterite soil stabilized with 6% or more cement can be recommended for csre. A model study on accelerated consolidation of coir reinforced.
Nature and properties of lateritic soils derived from different parent. The geotechnical properties of these soils are quite different from those. Pdf engineering properties of lateritic soils around dall quarry in. The soil used is a naturally reddishbrown lateritic soil obtained from a borrow pit in shika area of zaria latitude 11. Engineering properties of a lateritic soil profile. Improving lateritic soils for construction purposes stabilization processes are very complex because many parameters come into play. This paper examines the geotechnical properties around dall quarry a laterite soil quarry soil in ilorin, southwestern nigeria around where road construction is ongoing. The susceptibility of a slope to failure is dependent on many factors including cohesion and internal friction of the laterite soil yalcin, 2007. A preliminary study of the magnetic properties on laterite soils as indicators of pedogenic processes l. Lateritic soils, tyre ash, consolidation pressure, compression index, swell index. Di erent parent materials also bring the di erent physical and chemical properties. The lateritic soil, which was modified with guinea corn husk ash and lime as stabilizing agents, was obtained from. Pdf lateritic soils at the dall quarry in ilorin metropolis sango area, southwestern nigeria were investigated with respect to their. The properties of the laterite soils taken for the study include.
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