Abstract
AbstractMesoamerican masons have used an extract from the bark of such trees as the chucum, chacte, chacah, and jabin in the preparation of lime plaster since prehistoric times, reportedly to increase the workability or strength of the lime and to reduce cracking in the plaster. Experiments involving the use of plasters prepared with these high tannin-content extracts show that the extracts have an effect on the properties of lime plater probably by stabilizing the system during drying.
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