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When the builders of ancient Rome used to talk about mortar, they were referring to the trough or carrier in which they mixed and transported the lime and sand. Little by little, the word was used not only to refer to the receptacle but also its content: a mixture initially made up of lime, sand and water that they used to bind stones or bricks together, smooth surfaces and protect façades.
Today, we still use slaked lime (CL 90S) as a binding material as well as cement for pointing and plastering work. Mixed mortars (mixtures of slaked lime, cement and sand) are gessos that set hydraulically, allowing high mechanical resistance to be reached quickly while still offering unbeatable workability and application conditions, as well as greater permeability to water vapour, thus avoiding dampness problems (damp patches, black mould, flaking, etc...). |
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