Crystallization and Colloidal Stabilization of Ca(OH) in the Presence of Nopal Juice (Opuntia ficus indica): Implications in Architectural Heritage Conservation.

Hydrated lime (Ca(OH)) is a vernacular art and building material produced following slaking of CaO in water. If excess water is used, a slurry, called lime putty, forms, which has been the preferred craftsman selection for formulating lime mortars since Roman times. A variety of natural additives were traditionally added to the lime putty to improve its quality.