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Materials
Materials_250
What is inside this section: Materials

Pavements are a conglomeration of materials. These materials, their associated properties, and their interactions determine the properties of the resultant pavement. Thus, a good understanding of these materials, how they are characterized and how they perform, is fundamental to understanding pavement.

Figure 1. Aggregate mine.

Aggregate

“Aggregate” is a collective term for the mineral materials such as sand, gravel and crushed stone that are used with a binding medium (such as water, bitumen, portland cement, lime, etc.) to form compound materials (such as asphalt concrete and portland cement concrete).

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Featured Article

Backhoe used to place and initially grade spots

In designing and building pavements, we sometimes casually assume that making a pavement thicker also makes it stronger, but even to the extent this is true, how thick is thick enough? One of the key questions in the structural design of an asphalt pavement is how thick each layer of the structure should be. During … Read more »