In construction, aggregate refers to granular materials like sand, gravel, crushed stone, or slag. It can be used with cement in concrete or mortar. It’s often used as the finished surface of built-up roofs.
This is a very general meaning, referring to a group or mass of distinct things considered together. For example, the aggregate number of unemployed means the total number of unemployed people. Here is a short list of other meanings:
- In geology, an aggregate can be a rock made up of a mixture of mineral fragments, crystals, or similar materials.
- In economics, an aggregate is a combined value representing the overall result of economic activity, such as Gross Domestic Product (GDP).
- In botany, it can describe flowers that are massed into a dense head or cluster.
- In statistics, it means a total or a collection of various parts or amounts.
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