Problem 1:For a gravel with D60 0.48mm, D30 0.25mm, and D10coefficient and the coefficient of gradation. Is it a well-graded or poorly graded soil?-===0.11mm, calculate the uniformityProblem 2:0.3 mm, D30The following values for a sand are given: D10Determine Cu and Cc and state if it is a well-graded or a poorly graded soil.=0.41 mm, and D60 ==0.77 mm.

The uniformity coefficient is given as:The coefficient of gradation is given as:Considered together,…

Problem 1: 0.48mm, D30 0.25mm, and D10 For a gravel with D60 coefficient and the coefficient of gradation. Is it a well-graded or poorly graded soil? = = 0.11mm, calculate the uniformity Problem 2: The following values for a sand are given: D10 = 0.3 mm, D30 = 0.41 mm, and D60 Determine Cu and Cc and state if it is a well-graded or a poorly graded soil. = 0.77 mm.

Problem 1: 0.48mm, D30 0.25mm, and D10 For a gravel with D60 coefficient and the coefficient of gradation. Is it a well-graded or poorly graded soil? = = 0.11mm, calculate the uniformity Problem 2: The following values for a sand are given: D10 = 0.3 mm, D30 = 0.41 mm, and D60 Determine Cu and Cc and state if it is a well-graded or a poorly graded soil. = 0.77 mm.

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter6: Soil Compaction

Section: Chapter Questions

Problem 6.7P

See similar textbooks

Similar questions

no Sieve analysis test on 400 gm of sand was conducted with the following records; Sieve No. 8 14 28 35 70 100 200 pan 2.362 1.168 0.589 0.417 0.295 0.147 0.074 M Diameter (mm) Mass retained (gm) 60 100 72 48 62 18 30 A 60 160 B 280 342 360 390 Total Retained (gm) % finer 85 60 42 30 D 10 2.5 a. What of the values of A, B, C and D. b. Determine the grading characteristics of this soil. c. Classify this soil according to its gradation using USCS method. C
1. What is the Summation of cumulative retained percentage for the Gravel * 1.524 2.509 3.424 4.624 2.What is the Fineness Modulus for the sand? 1.2.58 2.3.58 3.3.98 4.4.75 3.What is the Fineness Modulus for the Gravel? * 4.24 5.24 6.24 5.09 4.What is the Fineness Modulus for the blend? * 1.5.576 2.3.581 3.2.89 4.4.742 Choose one answer and write the answer number for me
2.4 The following are the results of a sieve analysis. 2.1 For a gravel with Dg = 0.48 mm, D = 0.25 mm, and Dn = 0.11 mm, calculate the uniformity coefficient and the coefficient of gradation. Is it a well-graded or a poorly graded soil? 2.2 The following values for a sand are given: Dn = 0.3 mm, D = 0.41 mm, and D = 0.77 mm. Determine C, and C, and state if it is a well-graded or a poorly-graded soil. U.S. sieve no. Mass of soil retained (g) 4. 10 18.5 20 532 40 90.5 60 818 100 92.2 200 585 Pan 26.5 a. Determine the percent finer than cach sieve and plot a grain-size distri- bution curve. b. Determine Dg. Dy. and D, for each soil. . Calculate the uniformity coefficient C d. Calculate the coefficient of gradation C,.
Problem 2.1: The following values for a sand are given: D10 = 0.3 mm, D30 = 0.41 mm, and D60 = 0.77 mm.Determine Cu and Cc, and state if it is a well-graded or a poorly-graded soil.
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 w. (e) What is the range of water content if the relative compaction (R.C.) is required to be 95% of the modified Proctor Ya.max? pt? opr?
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…
SIZE (mm) PERCENT FINER 2.0 90.1 0.073 53.96 0.053 41.9 0.0045 25.16 0.0017 10.1 A sample of residual soil developed on shaly sandstone has the following grain-size characteristics. USING USDA, DETERMINE THE FOLLOWING AND SHOW COMPLETE SOLUTION. PLOT THE GRAPH. (ALL FINAL ANSWER IS IN 3 DECIMAL PLACES) 1. Determine the modified percentage of sand. 2. Determine the modified percentage of silt. 3. Determine the modified percentage of clay. 4. Determine the classification of soil.
For a given sieve analysis: No.4 - % finer is 94, for No 200 - %finer 3. Cu=4.48 Cc=1.22. Classify the soil using USCS. Justify your answer.
A 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. Thanks
Q.1. Select the right answer of the following: 1. The void ratio of soil can be: a. greater than void ratio b. less than void ratio c. equal to void ratio d. no one 2. When Gravel had coefficient of uniformity of 3, the soil could be according USCS: a. GW b. GP c. SP d. any one of them 3. In a wet soil mass, air occupies 1/6 of volume and water occupies 1/3 of volume. The void ratio is: a. 0.25 b. 0.50 4. For the soil with LL= 45%, PL = 25% and water content = 15% the liquidity index is: B.0 с. 1.50 d. 1.00 a.0.6 5. The type of unit weight of soil s depends on: с. 1 dinone of them а. е b. n c. YW d. S 6. Soil has LL of 30, the corresponding plasticity index given by A-line: a. 7.3 b. 7.5 c. 9.0 d. 9.5 7. The porosity in of soil is function of: c. Vv & n P.= L.L-PL 12:45-25=2 a. Vv&Vs b. Vv& Vt d. Vs & n 8. For a soil deposit having n= 33% and G 2.6, ysaturated= 15KN/m3, S is: %3D а. 1.0 b. 1.05 с. 1.07 d. 1.10 10. When saturation in soil sample occurs, the degree of saturation: a.…
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?
Q1: A. Answer in True or False 1. A soil has a Cu =1, then it is considered as a poorly graded soll. 2. A soil has L.L-60% and P.L-35%, then it plots a point below the A-line in the plasticity car 3. A soil described with a symbol (SP) has % passing No. 200 sieve more than 50% 4. Decreasing water content below shrinkage limit is accompanied with a decreasing in void ra 5. Water molecules are considered polar and known as dipoles. 6. Dry Density is the smallest density. 7. Capillary rise is directly proportional to the pore channel diameter. 8. The unconfined compressive strength is twice the undrained cohesion. 9. Piping or boiling occurs when effective stress equals to zero. 10. It is assumed that the secondary compression begins when the primary conso