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In pavement design, what does the term 'subgrade' refer to?
Practice Questions
Q1
In pavement design, what does the term 'subgrade' refer to?
The top layer of the pavement
The layer of soil beneath the pavement
The drainage layer
The layer of asphalt
Questions & Step-by-Step Solutions
In pavement design, what does the term 'subgrade' refer to?
Steps
Concepts
Step 1: Understand that pavement is the surface layer we drive on, like roads or parking lots.
Step 2: Know that beneath this surface layer, there are different layers of materials.
Step 3: Identify that the very bottom layer, which is made up of soil, is called the subgrade.
Step 4: Realize that the subgrade is important because it supports the weight of the pavement above it.
No concepts available.
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