Laitence
Laitence is 'a milky layer of lime or cement on the surface of the mortar, the result of using too much water in the mix, overworking the mortar or rapid drying.'
As defined by the Society for the Protection of Ancient Buildings (SPAB) from their online Glossary. Hemp lime construction: A guide to building with hemp lime composites.
[edit] Related articles on Designing Buildings
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