Traffic and Highway Engineering
5th Edition
ISBN: 9781305156241
Author: Garber, Nicholas J.
Publisher: Cengage Learning
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Chapter 17, Problem 12P
To determine
Soil classification using AASHTO method
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A soil sample has 98% passing the No. 4 sieve and 74% passing the No. 200 sleve. The LL for the soils 58% and the PI is 30%. Classify the soil according to the USCS.
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Sir plz help me
Problem 1
The following grain size distribution test results were obtained from sieve analysis test.
Percent Passing
U.S. Sieve Number
4
100
10
90
20
64
40
38
08
200
18
13
Also, the Atterberg test results revealed the following results
LL = 23 and PL = 19
Classify the soil by using
a) AASHTO soil classification system
b) USCS soil classification system
Give group names and group symbols. Show the GSDC and sketch of finding necessary information from GSDC.
Problem 2
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- Solutions plzarrow_forwardThe result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. (a) Classification of Soil A. (b) Classification of Soil B. (c) Classification of Soil C. Sieve Analysis Results for Situation 9 Sieve Analysis Sieve Diameter, Percent Passing Number mm. 4.76 90 100 100 8. 2.38 84 90 100 10 2. 72 77 98 20 0.84 66 59 91 40 0.42 58 50 85 60 0.25 50 42 79 100 0.149 44 36 70 200 0.074 38 33 LL 42 46 47 PL 23 29 24 63arrow_forwardSir solve itarrow_forward
- ¿???arrow_forwardShow your complete solution so I can follow thanksarrow_forwardThe following results were obtained by a mechanical analysis. Classify the soil using the AASHTO classification system and also detemine the group index. Liquid limit = 42 and plastic limit = 23. Sieve No. % Finer 10 40 200 98 81 38arrow_forward
- SITUATION 9 The result of sieve analysis of three soils is given next. It is required to classify these soils according to the AASHTO Classification System. Use the attached AASHTO Classification of Highway Subgrade Materials Table. (a) Classification of Soil A. (b) Classification of Soil B. (c) Classification of Soil C. Sieve Analysis Results for Situation 9 Sieve Analysis Sieve Diameter, Percent Passing Number mm. 4.76 90 100 100 8. 2.38 84 90 100 10 2. 72 77 98 20 0.84 66 59 91 40 0.42 58 50 85 60 0.25 50 42 79 100 0.149 44 36 70 200 0.074 38 33 LL 42 46 47 PL 23 29 24 63arrow_forwardGiven the following Sieve Analysis and Atterberg limits results. Answer the following questions: 1- What is the effective diameter of this soil? 2- Calculate the uniformity coefficient and coefficient of gradation 3- Determine the percentage of Gravel, Sand, Fine soils according to USCS. 4- Classify the soil using AASHTO (with GI) & USCS (with group name). Diameter Sieve # % Passing 100 (тm) 90 4 4.75 96 80 3.35 90 70 10 78.8 60 20 0.85 56.8 50 40 0.425 37.8 40 60 0.25 23.6 30 100 0.15 13 20 200 0.075 4.6 10 Рan LL 10 10 0.1 0.01 Diameter PL 5 Percent Passing (%) 2.arrow_forwardQuestion 3 The sieve analysis of soil and the liquid and plastic limits of the fraction passing through the No. 40 sieve are given below. Classify the soils using the AASHTO classification system and give the group indexes. % Passing No. 10: 48 % Passing No. 40: 28 % Passing No. 200: 6 LL = - %3D PL = NP Group classification: Blank 1 Group index: Blank 2arrow_forward
- The results of the particle-size analysis of the soil are as follows: Percent passing No. 10 sieve = 100; Percent passing No. 40 sieve = 80; Percent passing No. 10 sieve = 58.The LL and PI of minus No. 40 fraction of the soil are 30 and 10 respectively. Classify the soil by USCS system a. CH b. SP-SC c. CL-ML d. CL-MLarrow_forwardanswer quicklyarrow_forwardHow field identification of clayey soil can be done from silty soil using simpler field tests. Find the group index value according AASTHO soil classification system by using following data. % passing 75 micron sieve = 58%, Liquid limit = 50% Plastic Limit = 35 %arrow_forward
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