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A structure designed for storing and dispensing dry granular construction materials such as sand, crushed stone, and gravel; usually has

1. An inert granular material such as natural sand, manufactured sand, gravel, crushed gravel, crushed stone, vermiculite, perlite, and air-cooled

The addition of a material to the earths surface to promote the uniformity of a grade or slope.

The collecting together of tiny suspended particles into a mass of larger size, one which will settle more rapidly.

1. In ancient Rome, an earthwork; an artificial mound or rampart. 2. The fill for a road over low ground.