Problem # 4. Specifications for a proposed earth fill require that the soil be compacted to 95% of Standard proctor dry density. Test on glacial till borrow material indicates ymax=19.51 kN/m at an optimum water content of 12%. The borrow material in its natural condition has a void ratio of 060. If the sp. Gr. Is 2.65 a. Compute the void ratio of the soil. b. Compute the volume of the solids. Compute the maximum volume of the borrow required to make one cu.m. of acceptable compacted fill. C.

Problem # 4. Specifications for a proposed earth fill require that the soil be compacted to 95% of Standard proctor dry density. Test on glacial till borrow material indicates ymax=19.51 kN/m at an optimum water content of 12%. The borrow material in its natural condition has a void ratio of 060. If the sp. Gr. Is 2.65 a. Compute the void ratio of the soil. b. Compute the volume of the solids. Compute the maximum volume of the borrow required to make one cu.m. of acceptable compacted fill. C.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter3: Weight–volume Relationships

Section: Chapter Questions

Problem 3.23P

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Specification for a proposed earth fill requires that the soil be compacted to 95% of standard proctor dry density. Tests on glacial till borrow material indicates ymax=19.51 kN/m^3 at an optimum water content of 12%. The borrow material in its natural condition has a void ratio of .60 if sp. gr. is 2.65. A) Compute the void ratio of the soil. B) Compute the volume of the solids. C) Compute the maximum volume of the borrow required to make one cubic meter of acceptable compacted fill.
Subj: Soil Mechanics Specifications for a proposed earth fill require that a soil be compacted to 95% of Standard Proctor dry density. Tests on borrow material indicate maximum dry density equal to 124 lb/cu ft. at a optimum moisture content of 12% The borrow material in its natural condition has a void ratio of 0.60. Gs=2.65. Determine the relative compaction. a. 87.87% b. 83.48% c. 95.00% d. 92.76%
Problem B: For questions 8 to 11. A cubicmeterof soil in its natural state is 18.907 KN. Afteroven-drying it weighs 15.763 KN. Assuming aspecific gravity Of 2.687. Determine the following. 8) Moisture content ? a) 0.205 9) What is the void ratio (e)? a) 0.657 b) 0.627 10) The porosity will be? a) 0.409 11) Degree of Saturation a) 79.570% b) 0.154 c) 0.259 d) 0.199 c) 0.672 d) 0.651 b) 0.402 c) 0.415 d) 0.502 b) 80.455% 78.790% d) 66.678%
Problem G A saturated 110 cu.cm clay sample has a natural water content of 29.85%. It is found that the shrinkage limit occurs when the water content is 18.65%. If the sp.gr. of soil is 2.65. a. Compute the shrinkage ratio. b. Compute the volume of sample when the water content is 16.25%. c. Compute the mass of dry soil sample.
A container of volume 2.83 X 10-3 m3 weighs 9.8 N. Dry sand was poured to fill the container. Thecontainer and the sand weigh 52.3 N. Calculate (a) the void ratio and (b) the porosity. Describe thecondition of the soil (loose or dense). Assume Gs. = 2.7
QUIZ 3 1. A sample of clay has a water content of 40 percent at full saturation. Its shnnkage limit is 15 percent. Assuming Gs = 2.70, determine its degree of shrinkage. Comment on the quality of the soil.
Page 3 Q2 A soil has a bulk density of 1.91 Mg/m³ and a water content of 9.5%. The value of G, is 2.70. Determine the following: a) Void ratio. b) Porosity. c) Degree of saturation.
A 0.082-m3sample of soil weighs 1.445 kN. When it is dried out in an oven, itweighs 1.301 kN. The specific gravity of solids is found to be 2.65. Find the watercontent, void ratio, porosity, degree of saturation, and wet and dry unit weights.
For a normally consolidated soil, the following is given: Determine the following: a. The compression index, Cc. b. The void ratio corresponding to pressure of 200 kN/m2
PROBLEM B A silty clay has a plastic limit of 29.0 and a plastic index of 34.0. If the clay has a liquid index of 0.35 Compute the water content of the clay? Compute for the degree of saturation if clay has a Gs = 2.70 and e = 0.92. Compute for the moist unit weight of the clay if the void ratio is 0.92 and Gs = 2.70 Compute the dry unit weight of the soil.
Give its consistency index. EXERCICE 3 Classify the following soil using the Unified Soil Classification (ASTM standard). Percentage passing N° 4 seive = 98 Percentage passing N° 10 seive = 86 Percentage passing N° 40 seive = 80 Percentage passing N° 200 seive = 71 The liquid limit = 102% The Plasticity index = 68% The water content is = 72%Give its consistency index. Indicate the activity of this soil and numerous some potential problems linked to its use in different geotechnical works. EXERCICE 4 Some tests were performed on the sandy silt according to Standard Proctor test. The volume of the mold is 944 cm. The specific gravity was measured as 2.67 1) Plot the Proctor compaction curve (see the page 2) 2) Find: 2-1 The maximum dry unit weight of sandy-silt fill, 2-2 Its OMC, 2-3 The moisture ranges for 85% of Standard Proctor Optimum, 2-4 The degree of saturation at the optimum Proctor state. 3) Plot the zero air voids curve (see the page 2) 4) Determine the values of degree of…
A clay fill has a bulk density of 1.8 g/cc. If the moisture content is 17.8% and the Gs = 2.70,find the degree of saturation.