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Highway Research Board (HRB) classification of soils is based on

This question belongs to Civil Engineering Soil Mechanics And Foundation
Soil Mechanics and Foundation
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Highway Research Board (HRB) classification of soils is based on

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Correct Answer: Option C
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Muhammad Umar
Muhammad Umar 2 years ago
The Highway Research Board (HRB) classification, also known as the AASHTO (American Association of State Highway and Transportation Officials) classification system, is based on both particle size composition and plasticity characteristics. This system classifies soils according to their suitability for use in highway subgrades, with a focus on their gradation (particle size distribution) and Atterberg limits (plasticity characteristics).
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