Homework Answers
(a)
Porosity =( pore volume/total volume)×100%
= (30 -25)ml/30ml ×100%
= 16.67 %
(b)
Average density of soil particles = 80g/30ml = 2.667 g/ml
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2. A 30 cm sample of dry soil from an aquifer weighs 80 g. When the...
4. A 20-cm long soil sample is acquired with a cylindrical tub having a 5-cm diameter....
4. A 20-cm long soil sample is acquired with a cylindrical tub having a 5-cm diameter. On removal from the tube, a sample weighs 525 g. After it is oven dried at 1050 C for a period of 48 hours, the weight has stabilized at 503.2 g. The sample is assumed to be stabilized at this point and soil water has been removed. Compute the bulk density, porosity, water content, and water saturation.
A sample of fully saturated clay weighs 1.4 kg. When dry, the same sample weighs 1.1...
A sample of fully saturated clay weighs 1.4 kg. When dry, the same sample weighs 1.1 kg. The density of soil solids is Ps= 2700 kg/m², and the density of water is pw = 1000 kg/m². The density of the saturated clay is most nearly O (A) 1000 kg/m2 O (B) 1600 kg/m² O (C) 2000 kg/m O (D) 2700 kg/m2
please do problem 3 Problem 1: In its natural condition a soil sample has a mass...
please do problem 3
Problem 1: In its natural condition a soil sample has a mass of 2290 g and a volume of 1.15 x10 m. After being completely dried in an oven the mass of the sample is 2035 g. The value of G, for the soil is 2.68. Determine the bulk density, unit weight, water content. void ratio, porosity, degree of saturation and air content. Problem 3: A soil specimen is 38 mm in diameter and 76 mm...
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Q.1 (a) Soil sample has been collected in a compacted embankment at a dry density (Pty) of 1950 kg/m, air void ratio (A.) of 15% and mass of solid (M.) of 3 kg. The value of G, is 2.7. Determine the following: O mass of water (MX) and total mass (M), (4 marks) (i) volume of air (V.), water (V.x) and solid (V.); (6 marks) (iii) void ratio (e), porosity (n), moisture content (w), and degree of saturation (S) and;...
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Contaminant sorption and flow in subsurface environment (12 points) An aquifer is contaminated due to a recent spill of a certain industrial solvent. The aquifer has a hydraulic head difference of 0.01 m as measured by two piezometers about 2 m apart along the direction of groundwater flow. The aquifer has a porosity of 0.3, organic carbon бс) of 1.7%, soil particle density of 2.6 g/cm3, and hydraulic conductivity (K) of 2.5 x 103 cm/sec The solvent has a log...
A 170 cm sample of soil obtained from below the ground water table has a mass...
A 170 cm sample of soil obtained from below the ground water table has a mass of 300 g. When oven-dried, the mass is 210 g. What is the density of solid soil particles? (Formulae attached) Phase relationships in soils S, = WG p=Pa(1+w) p=GWm y'= 7 sat – Yw 1. =D, = {max e x100 emax - emin a. 2.60 g/cm3 b.2.63 g/cm3 OC.2.67 g/cm3 d. 2.70 g/cm3
undisturbed soil sample has a total mass of 2290 g and volume of 1.15 x 10...
undisturbed soil sample has a total mass of 2290 g and volume of 1.15 x 10 cm'. Specifica ity of the soil mineral G. = 2.68. Recall pw = 1 g/cm'. (a) A natural water content test of the sample gave the following results mass of container: 17.31 g mass of container plus wet soil (before drying in oven) 43.52 g mass of container plus dry soil (after drying in oven) 39.86 g What is the natural water content of...
Sel Mechanies CIVL34 Semester 20182 Midlerm am uestion 2 A sample of clay 275 g ecific...
Sel Mechanies CIVL34 Semester 20182 Midlerm am uestion 2 A sample of clay 275 g ecific gravity of the solid particles is mass of 308 g partialy e when partialily saturated an (ii) (iii) he water content for the soil in the partially saturated case The porosity of the soil. The shrinkage limit of the soil. density of water is 1 alm3
A sample of fully saturated clay weighs 1.4 kg. When dry, the same sample weighs 1.1 kg. The density of soil solids is Ps= 2700 kg/m², and the density of water is pw = 1000 kg/m². The density of the saturated clay is most nearly O (A) 1000 kg/m2 O (B) 1600 kg/m² O (C) 2000 kg/m O (D) 2700 kg/m2
please do problem 3
Problem 1: In its natural condition a soil sample has a mass of 2290 g and a volume of 1.15 x10 m. After being completely dried in an oven the mass of the sample is 2035 g. The value of G, for the soil is 2.68. Determine the bulk density, unit weight, water content. void ratio, porosity, degree of saturation and air content. Problem 3: A soil specimen is 38 mm in diameter and 76 mm...
Q.1 (a) Soil sample has been collected in a compacted embankment at a dry density (Pty) of 1950 kg/m, air void ratio (A.) of 15% and mass of solid (M.) of 3 kg. The value of G, is 2.7. Determine the following: O mass of water (MX) and total mass (M), (4 marks) (i) volume of air (V.), water (V.x) and solid (V.); (6 marks) (iii) void ratio (e), porosity (n), moisture content (w), and degree of saturation (S) and;...
Contaminant sorption and flow in subsurface environment (12 points) An aquifer is contaminated due to a recent spill of a certain industrial solvent. The aquifer has a hydraulic head difference of 0.01 m as measured by two piezometers about 2 m apart along the direction of groundwater flow. The aquifer has a porosity of 0.3, organic carbon (foc) of 1.7%, soil particle density of 2.6 g/cm, and hydraulic conductivity (K) of 2.5 x 10-3 cm/sec The solvent has a log...
Contaminant sorption and flow in subsurface environment (12 points) An aquifer is contaminated due to a recent spill of a certain industrial solvent. The aquifer has a hydraulic head difference of 0.01 m as measured by two piezometers about 2 m apart along the direction of groundwater flow. The aquifer has a porosity of 0.3, organic carbon бс) of 1.7%, soil particle density of 2.6 g/cm3, and hydraulic conductivity (K) of 2.5 x 103 cm/sec The solvent has a log...
A 170 cm sample of soil obtained from below the ground water table has a mass of 300 g. When oven-dried, the mass is 210 g. What is the density of solid soil particles? (Formulae attached) Phase relationships in soils S, = WG p=Pa(1+w) p=GWm y'= 7 sat – Yw 1. =D, = {max e x100 emax - emin a. 2.60 g/cm3 b.2.63 g/cm3 OC.2.67 g/cm3 d. 2.70 g/cm3
undisturbed soil sample has a total mass of 2290 g and volume of 1.15 x 10 cm'. Specifica ity of the soil mineral G. = 2.68. Recall pw = 1 g/cm'. (a) A natural water content test of the sample gave the following results mass of container: 17.31 g mass of container plus wet soil (before drying in oven) 43.52 g mass of container plus dry soil (after drying in oven) 39.86 g What is the natural water content of...
Sel Mechanies CIVL34 Semester 20182 Midlerm am uestion 2 A sample of clay 275 g ecific gravity of the solid particles is mass of 308 g partialy e when partialily saturated an (ii) (iii) he water content for the soil in the partially saturated case The porosity of the soil. The shrinkage limit of the soil. density of water is 1 alm3
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