What is Concrete? What is Cement?

Author: Vera KoesterORCID iD

Concrete is the most commonly used building material today. What is it made of? What is cement? How are they produced? The short video explains.

Cement is a binding material that is commonly used in construction. It is a fine powder, typically gray in color, made from a mixture of limestone, clay, and other minerals. When mixed with water, cement undergoes hydration, which hardens and binds together aggregates such as sand and gravel, forming concrete.



[1] Siegbert Sprung, Jörg Kropp, Cement and Concrete, in Ullmann’s Encyclopedia of Industrial Chemistry, Wiley-VCH, 2001. https://doi.org/10.1002/14356007.a05_489

[2] K.-C. Thienel, Bauchemie und Werkstoffe des Bauwesens, Chemie und Eigenschaften mineralischer Baustoffe und Bindemittel, Skript Universität der Bundeswehr München, Germany, 2020.

[3] Caroline Röhr, Vorlesung Chemie der Metalle (AC II), 3.8. Baustoffchemie, Universität Freiburg, Germany. (accessed June 5, 2023)

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