Manufactured or natural rock or sand that has a specific size characteristic. Used in foundations and subgrade work is called ________.

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Multiple Choice

Manufactured or natural rock or sand that has a specific size characteristic. Used in foundations and subgrade work is called ________.

Explanation:
Aggregate is a granular material made of rock or mineral particles that are sized to meet a specific gradation. In foundations and subgrade work, these sized particles provide the necessary stiffness, stability, and drainage for the underlying support. The material can be natural, like gravel or sand, or manufactured, such as crushed stone; the key idea is the controlled particle size. Gravel and sand are examples of aggregate, but the term described covers the entire category. Fill is used to raise elevation and may not be sized for subgrade performance in the same way.

Aggregate is a granular material made of rock or mineral particles that are sized to meet a specific gradation. In foundations and subgrade work, these sized particles provide the necessary stiffness, stability, and drainage for the underlying support. The material can be natural, like gravel or sand, or manufactured, such as crushed stone; the key idea is the controlled particle size. Gravel and sand are examples of aggregate, but the term described covers the entire category. Fill is used to raise elevation and may not be sized for subgrade performance in the same way.

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