Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Question
Chapter 4, Problem 4.9P
To determine
Find the liquid limit value of the soil using fall cone method.
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Paragraph
Liquid Limit Determination
Specimen No.
No. of Blows
Wt. of Container
Wt. of Container + Wet Soil
Wt. of Container + Dry Soil
İ.
ii.
a. The following data was obtained from Liquid Limit Test conducted at a Soil Lab. Using thedata
given in Table 01, determine the following;
Table 01: Liquid Limit Test data for the particular soil sample
Unit
(g)
(g)
(g)
1
14
7.13
27.93
T Body Text T Heading 1 T List Para... T No Spac...
21.33
2
20
7.33
27.33
21.23
3
28
7.73
28.43
22.33
F/QAP/021/004
4
32
10.93
Styles
30.13
24.63
5
39
7.23
26.53
21.13
Determine the Liquid Limit and Flow Index
If Plastic Limit of this soil is 22. Classify the soil based on BS Soil Classification
system.
T Norma
2a. The following data was obtained from Liquid Limit Test conducted at a Soil Lab.
Using the data given in Table 01, determine the following;
Liquid Limit Determination
Specimen No.
No. of Blows
Wt. of Container
Wt. of Container + Wet Soil
Wt. of Container + Dry Soil
i.
ii.
Unit
1
14
(g) 7.17
(g)
27.97
(9)
21.37
2
20
7.37
27.37
21.27
3
28
7.77
28.47
22.37
4
32
10.97
30.17
24.67
I
Determine the Liquid Limit and Flow Index
If Plastic Limit of this soil is 22. Classify the soil based on BS Soil
Classification system.
5
39
7.27
26.57
21.17
A hydrometer test was conducted on the material passing sieve No, 200 and the results are listed in the table below, The results of sieve
analysis on the soil showed that the percentage passing No. 4 was 90 % and that passing No. 200 was 20 %. Estimate the clay size fraction in
the soil.
Table : Results of hydrometer test
diameter
(mm)
0.0700
0.0400
0.0150
0.0020
% finer
(combined)
19
finer
95
80
16
65
13
45
0.0010
30
6
Select one:
Chapter 4 Solutions
Principles of Geotechnical Engineering (MindTap Course List)
Ch. 4 - During Atterberg limit tests in the soil mechanics...Ch. 4 - Prob. 4.2PCh. 4 - Prob. 4.3PCh. 4 - Results from a liquid limit test conducted on a...Ch. 4 - The following data were obtained by conducting...Ch. 4 - Refer to the soil in Problem 4.5. Using the...Ch. 4 - Following results are obtained for a liquid limit...Ch. 4 - Prob. 4.8PCh. 4 - Prob. 4.9PCh. 4 - Prob. 4.10P
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- b. Compute the plastic limit. C. Compute the natural water content. d. Compute the plasticity index. e. Compute the liquidity index. f. Compute the consistency index. PROBLEM NO. 4 From the table shows a summary of a liquid limit and plastic limit test. LIQUID LIMIT TEST Soil Wt. of wet Wt. of dry Water No. of Sample Soil (kg) Soil (kg) A. Content Blows 9.5 6.7 28 B 7.95 5.54 20 8.21 5.69 18 D. 12.85 8.83 13 PLASTIC LIMIT TEST Wt. of Dry Soil(kg) Soil Wt, of Wet Sample Soil(kg) 9.05 7.35 2 8.66 7.01 Natural Water Content Scil Wt. of Wt. of Sample Wet Soil Dry Soi! 1 9.69 7.0 9.47 6.86 a. Compute the liquid limit. b. Compute the plastic limit. C. Compute the natural water content. d. Compute the plasticity index. e. Compute the liquidity index GEOTECHNICAL ENGINEERING 1arrow_forwardA liquid limit test on a clay was performed with the following results. The natural water content of the clay is 38% and plastic limit is 21%. Number of Blows 6 12 20 28 32 Water content (%) 52.5 47.1 42.3 38.6 37.5 What is the liquidity index of this clay? (Use Interpolation) Group of answer choices 0.895 0.96 1.08 0.90 Please answer this asap. For upvote. Thanksarrow_forwardThe following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.arrow_forward
- Refer to the soil in Problem 4.5. Using the Casagrande plasticity chart, graphically estimate the shrinkage limit of the soil as shown in Figure 4.22. 4.5 The following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.arrow_forwardFollowing results are obtained for a liquid limit test using a fall cone device. Estimate the liquid limit of the soil and the flow index.arrow_forwardSr B. ( A Soil Specimen has the following characteristics: % passing No.4 sieve = 85 % passing No.200 sieve = 11 D60 = 2 mm D30=0.35 mm D₁0 = 70 μm D8=2 μm L.L = 36% P.L = 31% 1. Classify the specimen according to the Unified Soil Classification System (USCS). Assign the group name and the group symbol. 2. Determine the soil activity. 3. Determine the soil Liquidity index and consistency index if wc = 26%.arrow_forward
- Afalling-head permeability test is performed on a fine-grained soil. The soil sample has a length of 120 mm and a cross-sectional area of 600 mm2. The water in the standpipe flowing into the soil is 0.60 m above the top of the sample at the start of the test. It falls 50 mm in 30 minutes. The standpipe has a cross-sectional area of 200 mm2. (a) Make a sketch of the described conditions. (b) What is the coefficient of permeability in millimeters per second? (c) What is the coefficient of permeability in feet per minute? (d) On the basis of the calculated value for khyd, what is the probable soil type?arrow_forwardQ.1.A A soil specimen have void ratio (e) of 0.7, Gs 2.72. Calculate the total unit weight, dry unit weight, and water content at degree of saturation equals 75%. B. Classify the following soil using the USCS. Finer (%) 100 90 60 30 19 4 Sieve No. 4 No. 25 No. 50 No. 100 No. 200 12.5 mm (Diameter) (4.7 mm) (0.7 mm) (0.3 mm) (0.15 mm) (0.075 mm)arrow_forwardThe following data were obtained by conducting liquid limit and plastic limit tests on a soil collected from the site. Liquid limit tests: Number of blows, N 15 21 29 38 Moisture content (%) 39.5 37.9 36.4 35.1 Plastic limit test: PL = 19.3% a. Draw the flow curve and determine the liquid limit. b. Using the Casagrande plasticity chart (Figure 4.21), determine the soil type.arrow_forward
- 5.5 The modified Proctor test (ASTM D 698, method C) was performed for a soil with G, = 2.70, and the results are as follows: Moist Weight in Mold, gf Water Content, % 6.5 3250 9.3 3826 12.6 4293 14.9 4362 17.2 4035 18.6 3685 (a) Plot the Ya versus w relation. (b) Determine Ya,max and wopt- (c) Calculate S and e at the maximum dry unit weight point. (d) What is Y, at Wopt? What is the range of water content if the relative compaction (R.C.) is required to be 95% of the modified Proctor Ya.max?arrow_forwardHomework 1-Results from liquid and plastic limit tests conducted on a soil are Moisture given below. Plastic limit tests: PL 13.4% a) Draw the flow curve and obtain the liquid limit. b) What is the plasticity index of the soil? C) Determine the liquidity index of the soil if Win situ = 32% Number of blows, N content (%) 39.2 %3D 15 34.5 22 26 31.2 29.0 %3D 29 U.S. sieve no. Mass of soil retained 1- The followiarrow_forward4. Phase Diagram A soil sample was obtained at the underground parking garage that Dr. Barry is constructing at his home with a volume (VT) of 0.05 ft', total weight (WT) of 4.2 lbs, weight of water (Ww) of 0.37 lbs and a specific gravity (Gs) 2.70. Draw a complete phase diagram and determine the void ratio (e), moist unit weight (y), saturated unit weight (ysat), dry unit weight (Yary), weight of the solids (W.), volume occupied by the solids (V.), volume occupied by the water (V), volume occupied by the air (VA). volume of the voids (Vv), porosity (n), moisture content (w), and percent saturation (S). Use English units in your solution. Show all of your work.arrow_forward
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