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2. Base course - Wikipedia

   en.wikipedia.org/wiki/Base_course

   F. Fine-grained sand. The base course or basecourse in pavements is a layer of material in an asphalt roadway, race track, riding arena, or sporting field. It is located under the surface layer consisting of the wearing course and sometimes an extra binder course. If there is a sub-base course, the base course is constructed directly above this ...

3. Decorative concrete - Wikipedia

   en.wikipedia.org/wiki/Decorative_concrete

   A brown Exposed Aggregate concrete driveway with a gray Exposed Aggregate border. Exposed aggregate concrete is a popular decorative concrete option known for its decorative gravel appearance. During the concrete pouring process, the top layer of cement/sand paste is removed to reveal the embedded aggregate (stones, pebbles, or even shells).

4. Construction aggregate - Wikipedia

   en.wikipedia.org/wiki/Construction_aggregate

   Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction. Traditionally, it includes natural materials such as sand, gravel, crushed stone. As with other types of aggregates, it is a component of composite materials, particularly concrete and asphalt.

5. Aggregate (composite) - Wikipedia

   en.wikipedia.org/wiki/Aggregate_(composite)

   Aggregates are generally added to lower the amount of binders needed and to increase the strength of composite materials. Sand and gravel are used as construction aggregate with cement to make concrete and increase its mechanical strength. [1] Aggregates make up 60-80% of the volume of concrete and 70-85% of the mass of concrete. [2]

6. Types of concrete - Wikipedia

   en.wikipedia.org/wiki/Types_of_concrete

   Regular concrete is the lay term for concrete that is produced by following the mixing instructions that are commonly published on packets of cement, typically using sand or other common material as the aggregate, and often mixed in improvised containers. The ingredients in any particular mix depends on the nature of the application.

7. Subbase (pavement) - Wikipedia

   en.wikipedia.org/wiki/Subbase_(pavement)

   Layers in the construction of a mortarless pavement: A.) Subgrade B.) Subbase C.) Base course D.) Paver base E.) Pavers F.) Fine-grained sand. In highway engineering, subbase is the layer of aggregate material laid on the subgrade, on which the base course layer is located. It may be omitted when there will be only foot traffic on the pavement ...