-) The following are the results of a sieve analysis: US. Sieve No. Mass of Soil Retained on each Sieve 10 185 20 532 40 90.5 GO 818 100 922 200 pan 26.5 a. Determine the percent finer than each sieve size. US. Sieve No. Percent finer (%) 4 10 20 40 60 100 200 pan 100 90 80 70 60 50 40 30 20 10 0.05 Grain size (mm) –log scale b. From the graph, , determine the uniformity coefficient Cu c.Calculate the coefficient of gradation, Cc, Percent passing O0D0000

-) The following are the results of a sieve analysis: US. Sieve No. Mass of Soil Retained on each Sieve 10 185 20 532 40 90.5 GO 818 100 922 200 pan 26.5 a. Determine the percent finer than each sieve size. US. Sieve No. Percent finer (%) 4 10 20 40 60 100 200 pan 100 90 80 70 60 50 40 30 20 10 0.05 Grain size (mm) –log scale b. From the graph, , determine the uniformity coefficient Cu c.Calculate the coefficient of gradation, Cc, Percent passing O0D0000

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter2: Origin Of Soil And Grain Size

Section: Chapter Questions

Problem 2.1CTP: Three groups of students from the Geotechnical Engineering class collected soil-aggregate samples...

See similar textbooks

Similar questions

B. Solve the following problems. Write your answer in a long bond paper. Avoid Erasures. 1. The results of the sieve analysis are shown below: a) What is the percentage of the soil retained in No. 200 sieve? b) What is the effective grain size of the soil in mm? c) Determine the uniformity coefficient. Sieve No. 8 Diameter (mm) 4.76 2.38 Mass retained (g) 25 80
For a soil specimen, the following are given: % passing Sieve No. 4 = 92% % passing Sieve No. 10 = 81% % passing Sieve No. 40 = 78% % passing Sieve No. 200 = 65% LL = 48% PI = 32% Classify the soil by the AASHTO system. O A-2-7 (15) O A-7-6 (18) O A-7-6 (32) O A-2-5 (6)
2. The following are the results of a sieve analysis. U.S. Mass of soil sieve no. retained (g) 4 10 18.5 20 53,2 40 90.5 60 81.8 100 92.2 200 58.5 Pan 26.5 a. Determine the percent finer than each sieve and plot a grain-size distri- bution curve. b. Determine Du, Dy, and D, for each soil. c. Calculate the uniformity coefficient C. d. Calculate the coefficient of gradation C.
Do the following: a) Calculate the percent retained and percent passing each sieve, and graph the results on a semi-log graph (you may use the attached chart, or graph in Excel and include with your submission). Then, characterize the gradation of the material. b) Calculate the values of D10, D30, D60, Cu, and Cc c) If the LL is 48 and the PL is 26, determine the USCS classification of the soil, and state its suitability for the purpose stated in the scenario.
The following data are the results of a sieve analysis. Detemine the percentage retained on sieve #200. Mass of soil Sieve no. Opening retained (mm) on each sieve 4 4.75 10 2 18.5 20 0.85 53.2 40 0.425 90.5 60 0.25 81.8 100 0.15 92.2 200 0.075 58.5 Pan 26.5 Select one: а. 94 b. 58 c. none of the choices d. 27 е. 38
7. Find the grain-size (gradation) distribution of the following: a. Original dry mass of sample 600 g b. The sample was then washed and graded. The weigh retained in each sieve is provided below. i. Retained in No. 16 (1.18 mm) ii. Retained in No. 100 (150 μm) iii. Retained in No. 200 (75 μm) iv. Retained in Pan 305.3 g 127.9g 76.4g 3.8g c. How would you classify this aggregate? Please select one from the list below and justify your answer a.- Open graded b.- Well graded c.- Gap graded
The following are the results of a sieve analysis: Sieve size Weight Retained 9.5mm 0 4.75mm 86g 2.36mm 379g 1.18mm 595g Pan 440g a. Determine the percent finer than each sieve and plot a grain-size distribution curve. b. Determine D10, D30 and D60 from the grain-size distribution curve. c. Calculate the uniformity coefficient (Cu) and the coefficient of gradation (Cc). Note - Please dont answer using chegg answers
Sieve and Atterberg limits tests were made on a soil specimen and th results are given below: Sieve No. Wt. of sieve (gm) Wt. of sieve + Soil (gm) 1" 450 518 378 420 L.L = 32% 4 100 370 425 PL = 17% 365 200 442 W₂ = 21% 485 Pan 793 D15 = 0.002 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. in the soil Liquidity index and consistency index
3. Using the following data, determine the percentage retained, cumulative percentage retained, and percentage passing for each sieve. Plot the gradation curve. Determine the effective size and uniformity coefficient if appropriate. Determine the fineness modulus and check ASTM C33 gradation requirements. Weight Retained (g) Sieve Size No. 4 59.5 No. 8 86.5 No. 16 138.0 No. 30 127.8 No. 50 97.0 No. 100 66.8 Pan 6.3
Three groups of students from the Geotechnical Engineering class collected soil-aggregate samples for laboratory testing from a recycled aggregate processing plant in Palm Beach County, Florida. Three samples, denoted by Soil A, Soil B, and Soil C, were collected from three locations of the aggregate stockpile, and sieve analyses were conducted (see Figure 2.35). (a) (b) Figure 2.35 (a) Soil-aggregate stockpile; (b) sieve analysis (Courtesy of Khaled Sobhan, Florida Atlantic University, Boca Raton, Florida) a. Determine the coefficient of uniformity and the coefficient of gradation for Soils A, B, and C. b. Which one is coarser: Soil A or Soil C? Justify your answer. c. Although the soils are obtained from the same stockpile, why are the curves so different? (Hint: Comment on particle segregation and representative field sampling.) d. Determine the percentages of gravel, sand and fines according to Unified Soil Classification System.
If the weight of sample of sand in sieve analysis test was 420 gm and the weight retained on sieve are shown in table below. Is the sand satisfying the specification? Calculate the fineness modulus of sand and what is the average size ? Sieve size 10 2.36 1.18 0.6 0.3 0.15 < 0.15 (mm) Weight 8.4 63 96.6 143 59 34 16 retained (gm) Sieve size Specification limits for cumulative passing (mm) Zone 1 Zone 2 Zone 3 Zone 4 9.5 100 100 100 100 4.75 100 - 90 100 - 90 100 - 90 100 -95 2.36 95 -60 100 - 75 100 - 85 100 - 95 1.18 70 - 30 90 - 55 100 - 75 100 - 90 0.6 34 15 59 - 35 79 - 60 100 - 80 0.3 20 - 5 30 - 8 40 - 12 50 - 15 0.15 10 - 0 10 - 0 10 - 0 15 - 0 < 0.15 ------ ------
Classify soil A depicted in the table according to the AASHTO classification system. Sieve analysis- Percent finer No. 10 Liquid limit Plasticity index Soil No. 40 No. 200 A 98 80 72 52 21 Select one: a. A-7-5 b. A-7-6 C. A-7 d. A-6