76 .llQ3.pngThe data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 ) areprovided below:Standard proctor testModified proctor testDry density (kg/m)1691Dry density (kg/m')1873Water content (%)Water content (%)9.39.3171511,8191012.8175514.3180315.5174717.6169918.7168520.8164121.1161923a) Plot the compaction curves (both standard and modified in one graph).b) Establish the maximum dry density and optimum water content for each test.

The compaction of the soil is generally removing the air void in the soil and makes the soil dense.…

The data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 ) are provided below: Standard proctor test Modified proctor test Dry density (kg/m Water content (%) Dry density (kg/m³) 9.3 11.8 14.3 Water content (%) 9.3 1691 1715 1755 1747 1685 1619 1873 1910 12.8 1803 17.6 20.8 23 1699 1641 15.5 18.7 21.1 a) Plot the compaction curves (both standard and modified in one graph). b) Establish the maximum dry density and optimum water content for each test.

The data from standard and modified proctor test on a soil sample (density of solids: 2680 kg/m3 ) are provided below: Standard proctor test Modified proctor test Dry density (kg/m Water content (%) Dry density (kg/m³) 9.3 11.8 14.3 Water content (%) 9.3 1691 1715 1755 1747 1685 1619 1873 1910 12.8 1803 17.6 20.8 23 1699 1641 15.5 18.7 21.1 a) Plot the compaction curves (both standard and modified in one graph). b) Establish the maximum dry density and optimum water content for each test.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter2: Soil Deposits-origin, Grain-size, And Shape

Section: Chapter Questions

Problem 2.4P: For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60 = 0.41 mm Calculate the uniformity coefficient...

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For a soil, given: D10 = 0.08 mm D30 = 0.22 mm D60 = 0.41 mm Calculate the uniformity coefficient and the coefficient of gradation of the soil. 2.4 Repeat Problem 2.3 for the following: D10 = 0.24 mm D30 = 0.82 mm D60 = 1.81 mm
Calculate the CEC of a 100g soil sample that was found to contain the following cations: Ca2+ = 0.12g Mg2+ = 0.024g K+ = 0.078g Al3+ = 0.027g NH4+ = 0.036g H+ = 0.002g
6. 1kg of soil sample, placed after a period of time, the moisture content from 25% to 20%, the water in the soil decreased ( ).A. 0.06kg B. 0.05kgC. 0.04kg D. 0.03kg 8. When calculating the time factor Tv, if the soil is drained on one side, H in the equation is taken as the thickness of the soil layer ( ).A. half B. double C. 2 times D. 4 times
Calculate the Gs of soil sample - Mass of empty clean pycnometer= 41.76 gm Mass of empty clean pycnometer + dry soil = 67.52 gm Mass of pycnometer + dry soil + water = 157.62 gm Mass of pycnometer + water =? Gs =? Write your comment about types of soil according to the result of Gs .
A soil sample has a unit weight of 1.9 g/cc and w=12%. If Gs of solids is 2.65, determine the volume of water in cm3. a.0.377 b.0.212 c.0.12 d.0.092
A pycnometer test for the determination of water content of a soil sample having the Gs=2.70, yielded following data: Weight of moist soil=230.75g Weight of Pycnometer full of water=2965.20g Weight of Pycnometer+soil+water =3092.85g
Calculate the CEC (m.e./100g soil) using the following given miliequivalent weights obtained from a 25g soil sample (a. Ca++= 2.23 m.e; b. Mg++=1.32 m.e.; c. Na+= 1.98 m.e.; d. K+= 1.87 m.e.; e. H+= 1.27 m.e.; f. Al+++= 0.11 m.e.; g. NH4+= 2.3 m.e.; h. NO3-= 1.5 m.e.
Subj- civil Q. An undisturbed soil sample that is cylindrical in shape and measures 3 in (76.2 mm) in diameter by 6 in (152.4 mm) in length after oven drying weighs 2.57 lb (1.166 kg bulk) as opposed to 3.04 lb (1.38 kg mass). What are the densities and the weights in (a) wet and dry units? Additionally, find out the moisture content.
A fully saturated soil sample has a volume of 28 cc. The sample was dried in oven and the weight of the dry soil pat was found to be 48.76 g. Given G= 2.68. Determine the dry density in g/cc. a. 9.77 b. 1.745 c. 2.09 d. 34.90
2A sample of soil obtained from a borrow pit has a wet weight of 16 kg.The total volume occupied by the sample when in the ground was8490cm. A small portion of the sample is used to determine the watercontent. The wet sample weighs 150g. After drying, it weights 125g (a) What is the water content of the sample?(6) Determine the wet and the dry unit weights of the soil in the borrowpit.
For a soil, given e= 0.75, w= 22%, Gs= 2.66, calculate the degree of saturation. a.14.91 b.78.03 c.18.91 d.94.85
41 The data from a falling head test is shown. Diameter of standpipe: 4 cm. Initial Head: 92.9 cm. Duration of test: 12 min. Length of soil sample: 33.27 cm. Diameter of permeameter: 43 cm. If the soil permeability is 0.0028 cm/min, determine the final head (in cm.) of the permeability test. Round off to two decimal places.