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The slaking process involved in creating a lime putty is an exothermic reaction which initially creates a liquid of a creamy consistency. This is then matured for 2 to 3 months—depending upon environmental conditions—to allow time for it to condense and mature into a lime putty. A matured lime putty is thixotropic, meaning that when a lime ...
The process of tuckpointing requires that the excess lime putty is cut away from the fine tuckpointed line. This is performed using a Frenchmen [1] knife, a type of knife with a small, sharp, bent tip that allows the lime putty to be cut when guided along the tuckpointed line with a tuckpointer's straight edge. A double Frenchmen knife works by ...
In the 14th century, decorative plasterwork called pargeting was being used in South-East England to decorate the exterior of timber-framed buildings. This is a form of incised, moulded or modelled ornament, executed in lime putty or mixtures of lime and gypsum plaster.
Repointing is the process of renewing the pointing, which is the external part of mortar joints, in masonry construction. Over time, weathering and decay cause voids in the joints between masonry units, usually in bricks , allowing the undesirable entrance of water.
The resulting substance, known as quicklime or lump-lime, was subsequently pulverized into a fine powder and combined with water in a process called "slaking." Through this procedure, a fundamental binding agent called "lime putty" was created and utilized for plastering purposes. The slaked lime, a dense and moist substance, would then be ...
The plastering process involved the initial application of a coarse layer of plaster known as "arricio," followed by subsequent layers of lime putty blended with powdered marble to achieve a smooth and polished surface. On occasion, pigments were added to the wet plaster to introduce vibrant hues.
Pure lime is soluble in water containing carbonic acid, a natural, weak acid which is a solution of carbon dioxide in water and acid rain so it will slowly wash away, but this characteristic also produces autogenous or self-healing process where the dissolved lime can flow into cracks in the material and be redeposited, automatically repairing ...
Feebly hydraulic lime (NHL 2) is used for internal work and external work in sheltered areas. Feebly hydraulic lime contains up to 10% clay / clay mixed with other impurities. It might take one week or more to set after the addition of water. Setting is the process of permanently taking the shape into which lime has been moulded.