Cement

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Cement
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Cement (common name given to Portland Cement) is a fine powder composed of quicklime (generated from calcination of limestone) and gypsum, plus other additives. Cement is used together with aggregate in the building industry to form concrete. The use of cement is documented since Roman times; some authors describe a type of concrete (opus caementicium) made out of pozzolana ash with burnt lime to serve as a binder. Modern cement is mainly of two types: hydraulic cements (Portland cement), which harden after being exposed to water as a result of a chemical reaction where water is incorporated in the inorganic chemical structure to give insoluble hydrates; and other types of cements (non-hydraulic cements - mortar or lime), which harden via a non soluble gel, hence the ability to cast concrete under water.

Sample ID: 231

Particularities

Chemical symbol
CaO, CaSO4
State
Solid
Compound
Selections
Categories
Mineral
Curiosities
Transformative
Relationships
Concrete | Building | Carbon Dioxide | Limestone

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