Calcium silicate hydrate

Calcium silicate hydrates (CSH or C-S-H) are the main products of the hydration of Portland cement and are primarily responsible for the strength of cement-based materials.^[1] They are the main binding phase (the "glue") in most concrete. Only well defined and rare natural crystalline minerals can be abbreviated as CSH while extremely variable and poorly ordered phases without well defined stoichiometry, as it is commonly observed in hardened cement paste (HCP), are denoted C-S-H.

^ Richardson, I.G. (February 2008). "The calcium silicate hydrates". Cement and Concrete Research. 38 (2): 137–158. doi:10.1016/j.cemconres.2007.11.005. ISSN 0008-8846.

[Richardson_2008-1] Richardson, I.G. (February 2008). "The calcium silicate hydrates". Cement and Concrete Research. 38 (2): 137–158. doi:10.1016/j.cemconres.2007.11.005. ISSN 0008-8846.

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