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5.2 Classify the following soils by the AASHTO classification system. Give the group index for each soil. Sleve analysls- Percent finer Liquld Ilmit Plasticity Index Soll No. 10 No. 40 No. 200 90 74 32 28 6. 86 56 8. NP 42 28 12 18 13 92 68 30 42 18 90 48 22 31 ABCDE

5.2 Classify the following soils by the AASHTO classification system. Give the group index for each soil. Sleve analysls- Percent finer Liquld Ilmit Plasticity Index Soll No. 10 No. 40 No. 200 90 74 32 28 6. 86 56 8. NP 42 28 12 18 13 92 68 30 42 18 90 48 22 31 ABCDE

Structural Analysis
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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### Classification of Soils Using the AASHTO System In this exercise, you will classify the following soils according to the AASHTO classification system and determine the group index for each soil. The table below provides relevant data from sieve analysis and Atterberg limits. #### Sieve Analysis and Atterberg Limits | Soil | Sieve No. 10 (% finer) | Sieve No. 40 (% finer) | Sieve No. 200 (% finer) | Liquid Limit | Plasticity Index | |------|------------------------|------------------------|-------------------------|--------------|------------------| | A | 90 | 74 | 32 | 28 | 9 | | B | 86 | 56 | 8 | NP | NP | | C | 42 | 28 | 12 | 18 | 13 | | D | 92 | 68 | 30 | 42 | 18 | | E | 90 | 48 | 22 | 31 | 5 | #### Explanation: - **Sieve Analysis:** This indicates the percentage of the soil that is finer than the specified sieve sizes (No. 10, No. 40, No. 200). - **Liquid Limit (LL):** The moisture content at which soil changes from a plastic to a liquid state. - **Plasticity Index (PI):** The range of moisture content over which soil remains plastic. - **NP (Non-Plastic):** Indicates that the soil does not exhibit plasticity. Use this data to classify the soils according to the AASHTO classification system based on their gradation and Atterberg limits.
Transcribed Image Text:### Classification of Soils Using the AASHTO System In this exercise, you will classify the following soils according to the AASHTO classification system and determine the group index for each soil. The table below provides relevant data from sieve analysis and Atterberg limits. #### Sieve Analysis and Atterberg Limits | Soil | Sieve No. 10 (% finer) | Sieve No. 40 (% finer) | Sieve No. 200 (% finer) | Liquid Limit | Plasticity Index | |------|------------------------|------------------------|-------------------------|--------------|------------------| | A | 90 | 74 | 32 | 28 | 9 | | B | 86 | 56 | 8 | NP | NP | | C | 42 | 28 | 12 | 18 | 13 | | D | 92 | 68 | 30 | 42 | 18 | | E | 90 | 48 | 22 | 31 | 5 | #### Explanation: - **Sieve Analysis:** This indicates the percentage of the soil that is finer than the specified sieve sizes (No. 10, No. 40, No. 200). - **Liquid Limit (LL):** The moisture content at which soil changes from a plastic to a liquid state. - **Plasticity Index (PI):** The range of moisture content over which soil remains plastic. - **NP (Non-Plastic):** Indicates that the soil does not exhibit plasticity. Use this data to classify the soils according to the AASHTO classification system based on their gradation and Atterberg limits.
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