Aggregaatit

Aggregaatit is the plural form of aggregaat, a term used in several European languages to denote a self-contained unit or a modular assembly. The precise meaning depends on the context, but common uses fall into two broad categories: construction materials and power or mechanical assemblies.

In civil engineering, aggregaatit commonly refer to aggregates used as constituents of concrete, asphalt, and road bases. These aggregates are inert granular materials such as sand, gravel, crushed stone or slag. They are classified by size into fine and coarse aggregates, and they are sourced natural or manufactured. Important properties include grain size distribution (grading), shape, hardness, cleanliness, and moisture content, all of which influence workability and strength. Standards and specifications vary by country and project, but testing typically includes sieve analysis and specific gravity measurements.

In mechanical and electrical contexts, an aggregaat is a self-contained unit that combines a prime mover (often a diesel or gasoline engine) with a generator, pump, or other equipment. The resulting assembly, commonly called a generator set or genset, provides portable or stationary power. Key characteristics include rated output, fuel type, runtime, control panel features, and enclosure noise level. Aggregaat units are used on construction sites, in disaster relief, remote locations, and backup power systems.

In practice, aggregaatit is context-dependent and may refer to different concepts in construction, engineering, and industry.