The particle characteristics of a soil are given below. Size (mm) Percent finer ( % ) 0.850 100 0.425 95.5 0.250 92.7 0.150 85.8 0.075 74.0 0.040 65.8 0.020 54.8 0.010 47.0 0.006 40.8 0.002 33.0 Find the percentages of gravel, sand, silt, and clay according to the AASHTO system. (Enter your answers to two significant figures.) Fraction Grain size (mm) Percentage (%) Gravel 76.2 to 2 Sand 2 to 0.075 Silt 0.075 to 0.002 Clay <0.002

The particle characteristics of a soil are given below. Size (mm) Percent finer ( % ) 0.850 100 0.425 95.5 0.250 92.7 0.150 85.8 0.075 74.0 0.040 65.8 0.020 54.8 0.010 47.0 0.006 40.8 0.002 33.0 Find the percentages of gravel, sand, silt, and clay according to the AASHTO system. (Enter your answers to two significant figures.) Fraction Grain size (mm) Percentage (%) Gravel 76.2 to 2 Sand 2 to 0.075 Silt 0.075 to 0.002 Clay <0.002

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Following details regarding the particle size distribution and other index properties pertinent to the classification of soil. Choose three soils and classify each soil according to USCS and AASHTO classification systems. When necessary, assume Cu = 4.48 and Cc = 1.22.
Correct answer please.
Soil
Make comments about the general properties of the soil by classifying the floors given in the figures in the laboratory test results according to AASHTO and UCSC.
Use the USDA soil classification triangle to determine the textural soil class designations with the distributions of particle sizes shown in the table (unit is mm).
The particle size characteristics of a soil are given in the table. Using USDA method, determine: Size (mm) Percent Finer 4.75 98 0.85 95 0.044 36 0.033 32 0.0062 19 0.0025 9. 0.0011 1. Percentage of gravel (in 4 decimal places) 2. Percentage of sand (in 4 decimal places) 3. Percentage of silt (in 4 decimal places) 4. Percentage of clay (in 4 decimal places)
Given below is the result of a sieve analysis done on a soil sample. Sieve No. Diameter Percent Passing % 4 4.750 96 10 2.000 81 20 0.850 72 40 0.425 50 60 0.250 27 100 0.150 14 200 0.075 5 Pan --- 0 Determine the value of the coefficient of gradation/curvature.
Given below is the result of a sieve analysis done on a soil sample. Percent Passing % 96 83 67 46 Sieve No. 4 10 20 40 60 100 200 Pan Diameter 4.750 2.000 0.850 0.425 0.250 0.150 0.075 26 13 8 0 Determine the value of the coefficient of uniformity.
The particle characteristics of a soil are given below. Size (mm) Percent finer (%) 0.850 100 0.425 93.7 0.250 89.0 0.150 81.3 0.075 67.6 0.040 57.8 0.020 47.8 0.010 40.8 0.006 35.4 0.002 29.0 Find the percentages of gravel, sand, silt, and clay according to the MIT system. (Enter your answers to two significant figures.) Fraction Grain size (mm) Percentage (%) Gravel >2 Sand 2 to 0.06 Silt 0.06 to 0.002 Clay <0.002 3.
Given below is the result of a sieve analysis done on a soil sample. Sieve No. Diameter Percent Passing % 4 4.750 95 10 2.000 83 20 0.850 69 40 0.425 50 60 0.250 27 100 0.150 13 200 0.075 7 Pan --- 0 Determine the value of the coefficient of uniformity. ROUND OFF TO THREE DECIMAL PLACES. USE STORED VALUES.
2.8 2.7 The following are the results of a sieve and hydrometer analysis. Sieve number/ grain size Analysis Sieve Hydrometer Analysis Sieve 40 80 170 200 0.04 mm 0.02 mm 0.01 mm 0.005 mm 0.0015 mm Hydrometer Sieve number/ grain size Percent finer than a. Draw the grain-size distribution curve. b. Determine the percentages of gravel, sand, silt, and clay according to the MIT system. c. Repeat Part b according to the USDA system. d. Repeat Part b according to the AASHTO system. Repeat Problem 2.7 with the following data: 20 30 40 60 80 200 0.05 mm 0.03 mm 0.015 mm 0.006 mm 0.004 mm 0.0015 mm 100 96 85 80 59 39 26 15 8 Cengage Learning 2014 Percent finer than 100 96 90 76 65 34 27 19 11 7 6 5 Ⓒ Cengage Learning 2014
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