For determination of the permeability of a soil specimen by the variable head permeameter Theory The variable head permeameter is utilized to compute the permeability of comparatively less porous soils. The coefficient of permeability is expressed by: Where, = initial head, = final head, t= time interval, a= cross-sectional area of the liquid stand pipe, […]
Read More →Theory: The unconfined compressive strength ( ) basically refers to the load per unit area at which the cylindrical sample of a cohesive soil falls in compaction. Where P= axial load at failure, A= corrected area = , where is the initial area of the specimen, = axial strain = change in length/initial length. The […]
Read More →To assess the shear strength of a sandy soil sample by direct shear test: Theory Shear strength of a soil is its maximum resistance to shearing stresses. The shear strength is given as: Where, c’ = effective cohesion, = effective stress, = effective angle of shearing resistance. The shear tests could be undertaken under three […]
Read More →To determine the consolidation properties of a soil specimen Theory Consolidation of a saturated soil happens because of the exclusion of water under static, sustained load. The consolidation properties of soils are necessary to forecast the magnitude and the rate of settlement. The following properties are acquired from the consolidation test. Coefficient of compressibility, Coefficient […]
Read More →Compaction test of soil is also additionally called as Proctor’s test. It is normally undertaken to understand compaction properties of varied soils with alteration in moisture proportion. For assessment of the compaction properties of a soil sample by proctor’s test Theory Compaction refers to the procedure of densification of soil by plummeting air voids. The […]
Read More →For assessment of the liquid limit of soil sample Theory The liquid limit of a soil refers to the water proportion at which the soil performs virtually like a liquid, however has minor shear strength. It flows to adjacent the groove in mere 25 blows in Casagrande’s liquid limit equipment. Since, it is hard to […]
Read More →For assessment of the plastic limit of soil sample Theory The plastic limit of a soil refers to the water proportion of the soil beneath which it ends to be plastic. It then starts to crush when rolled into filaments of 3mm diameter. Tool and Equipment Porcelain evaporating dish about 120mm diameter Glass plate with […]
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How do you carry out the determination of Specific Gravity of Soil by Pycnometer Method? The Pycnometer is chiefly utilized for the determination of the specific gravity of soil particles of both types; grained and coarse grained soils. The specific gravity of soil is computed with the utilization of following relation: Where M1=mass of empty Pycnometer, M2= […]
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Aim: To Determine the Shrinkage Limit of a Specimen of the Remoulded Soil Theory The shrinkage limit refers to the propertion of the soil when the water is rightly adequate to fill up all the pores of the soil and the soil is saturated to the right extent. The size of the soil will not […]
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Aim: For determination of specific gravity of the solids by density bottle method Theory The specific gravity of solid particles refers to the proportion of the mass density of solids to the proportion of water. Its determination is carried out in the laboratory by applying the relation: Where, M1 = mass of empty bottle M2 = mass […]
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