Mechanism of gypsum hydration

Authors

  • G. Pacheco ESFM-Depto. de Ciencia de Materiales IPN
  • M. Portilla DEPg-Fac. de Química UNAM

DOI:

https://doi.org/10.3989/mc.1991.v41.i222.743

Abstract


There is an hypothesis that the mechanism o f gypsum hydration and dehydration is performed through two simultaneous phenomena. In this study we try to clear up this phenomenon using chlorides as accelerators or a mixture of ethanol-methanol as retarders to carry out the gypsum setting. Natural Mexican gypsum samples and a hemihydrate prepared in the laboratory are used. The following analytical techniques are used: MO, DRX, DTA, TG and DTG. In agreement with the obtained results, it can be concluded: that colloid formation depends on the action of accelerators or retarders and the crystals are a consequence of the quantity of hemihydrate formed.

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Published

1991-06-30

How to Cite

Pacheco, G., & Portilla, M. (1991). Mechanism of gypsum hydration. Materiales De Construcción, 41(222), 27–35. https://doi.org/10.3989/mc.1991.v41.i222.743

Issue

Section

Research Articles