sedimentary
Aggregate Concrete
Anthropogenic Conglomerate (Technosol)
Hardness: Variable (cement matrix ~3-5, stone inserts 6-7); Color: Grey matrix with multi-colored pebbles; Luster: Dull/Matte; Structure: Clastic/Polycrystalline
- Hardness
- Variable (cement matrix ~3-5, stone inserts 6-7)
- Color
- Grey matrix with multi-colored pebbles
- Luster
- Dull/Matte
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Physical properties
Hardness: Variable (cement matrix ~3-5, stone inserts 6-7); Color: Grey matrix with multi-colored pebbles; Luster: Dull/Matte; Structure: Clastic/Polycrystalline
Formation & geological history
Man-made via the mixing of Portland cement, water, and various geological aggregates (sand, gravel, crushed stone). Mimics the formation of natural conglomerate or breccia rocks.
Uses & applications
Primary material for sidewalks, roads, foundations, and modern architectural structures. Significant in civil engineering.
Geological facts
Concrete is one of the most used substances on Earth, second only to water. It is technically an artificial sedimentary rock that hardens through a chemical reaction called hydration.
Field identification & locations
Identified by a uniform grey binder (cement) holding together various rounded or angular rock fragments. Commonly found in urban environments.
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