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The structural number is a function of the thickness and material of the three layers of flexible pavements. O True O False

The structural number is a function of the thickness and material of the three layers of flexible pavements. O True O False

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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### Understanding the Structural Number in Flexible Pavements **Question:** The structural number is a function of the thickness and material of the three layers of flexible pavements. 1. ○ True 2. ○ False --- **Explanation:** In the context of flexible pavement design, the structural number (SN) is indeed a function that represents the overall structural capacity of the pavement. This value is calculated based on the thickness and material properties of the three primary layers, which typically include: 1. **Surface Course** - The top layer, which is directly exposed to traffic. 2. **Base Course** - The middle layer, providing strength and distributing loads. 3. **Subbase Course** - The bottom layer, primarily for additional support, especially in areas of poor subgrade soils. The structural number is determined through a formula that combines the layer coefficients (which reflect the material properties) and layer thicknesses, ensuring the pavement can adequately support expected traffic loads. **Answer:** - True
Transcribed Image Text:### Understanding the Structural Number in Flexible Pavements **Question:** The structural number is a function of the thickness and material of the three layers of flexible pavements. 1. ○ True 2. ○ False --- **Explanation:** In the context of flexible pavement design, the structural number (SN) is indeed a function that represents the overall structural capacity of the pavement. This value is calculated based on the thickness and material properties of the three primary layers, which typically include: 1. **Surface Course** - The top layer, which is directly exposed to traffic. 2. **Base Course** - The middle layer, providing strength and distributing loads. 3. **Subbase Course** - The bottom layer, primarily for additional support, especially in areas of poor subgrade soils. The structural number is determined through a formula that combines the layer coefficients (which reflect the material properties) and layer thicknesses, ensuring the pavement can adequately support expected traffic loads. **Answer:** - True
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