SIZE (mm)PERCENT FINER2.090.10.07353.960.05341.90.004525.160.001710.1A 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. Table 2.3 Particle-Size ClassificationsGrain size (mm)Name of organizationGravelSandSiltClayMassachusetts Institute of Technology(MIT)U.S. Department of Agriculture>22 to 0.060.06 to 0.002<0.002>22 to 0.050.05 to 0.002<0.002(USDA)American Association of State76.2 to 22 to 0.0750.075 to 0.002<0.002Highway and TransportationOfficials (AASHTO)Unified Soil Classification System(U.S. Army Corps of Engineers, U.S.76.2 to 4.754.75 to 0.075Fines(i.e., silts and clays)Bureau of Reclamation, and American<0.075Society for Testing and Materials)Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve:0.075-mm openings on a U.S. No. 200 sieve. See Table 25. 100109020803070Clay4060SiltyclaySàndyclay6040Clay loàmSoilSity clayloam7030Sandy clayloam8020LoàmSilty loam9010-LoamySandSandy loamSili100sand501009080706040302010Percentage of sandFigure 5.1 U.S. Department of Agriculture textural classification (USDA)ercentage of siltPercentage of clay

First, we have to identify which is sand and which is gravel and silt for that the below table is…

Answered: SIZE (mm) PERCENT FINER 2.0 90.1 0.073…

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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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.

Table 2.3 Particle-Size Classifications
Grain size (mm)
Name of organization
Gravel
Sand
Silt
Clay
Massachusetts Institute of Technology
(MIT)
U.S. Department of Agriculture
>2
2 to 0.06
0.06 to 0.002
<0.002
>2
2 to 0.05
0.05 to 0.002
<0.002
(USDA)
American Association of State
76.2 to 2
2 to 0.075
0.075 to 0.002
<0.002
Highway and Transportation
Officials (AASHTO)
Unified Soil Classification System
(U.S. Army Corps of Engineers, U.S.
76.2 to 4.75
4.75 to 0.075
Fines
(i.e., silts and clays)
Bureau of Reclamation, and American
<0.075
Society for Testing and Materials)
Note: Sieve openings of 4.75 mm are found on a U.S. No. 4 sieve; 2-mm openings on a U.S. No. 10 sieve:
0.075-mm openings on a U.S. No. 200 sieve. See Table 25.

100
10
90
20
80
30
70
Clay
40
60
Silty
clay
Sàndy
clay
60
40
Clay loàm
Soil
Sity clay
loam
70
30
Sandy clay
loam
80
20
Loàm
Silty loam
90
10-
Loamy
Sand
Sandy loam
Sili
100
sand
50
100
90
80
70
60
40
30
20
10
Percentage of sand
Figure 5.1 U.S. Department of Agriculture textural classification (USDA)
ercentage of silt
Percentage of clay

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