Pozzolan
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Pozzolans are a broad class of siliceous and aluminous materials which, in themselves, possess little or no cementitious value but which will, in finely divided form and in the presence of water, reac
Natural pozzolana (volcanic ash) deposits situated in Southern California in the United States
Cement
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A cement is a binder used for construction that sets, hardens, and adheres to other materials to bind them together. Cement is seldom used on its own, but rather to bind sand and gravel together. Ceme
Cement powder in a bag, ready to be mixed with aggregates and water.
Cement block construction examples from the Multiplex Manufacturing Company of Toledo, Ohio, in 1905
Clinker nodules produced by sintering at 1450 °C
Calcium oxide obtained by thermal decomposition of calcium carbonate at high temperature (above 825 °C).