Lime plaster that were sculpted with lime plaster over armatures of reeds and twine. They were made in the pre-pottery neolithic period, around 7200 BC. The fact that these sculptures have lasted so long is a testament to the durability of lime plaster. Lime plaster Lime plaster is a type of plaster composed of sand, water, and lime, usually non-hydraulic hydrated lime (also known as slaked lime, high calcium lime or air lime). Ancient lime plaster often contained horse hair for reinforcement and pozzolan additives to reduce the working time. Traditional non-hydraulic hydrated lime only sets through carbonatation when the plaster is
Lime mortar mortar does occur this can be as a result of either A common method for mixing lime mortar with powdered lime is as follows: Hair reinforcement is not found in lime mortars, but is common in lime plaster and many types of hair and other organic fibres can be found in historic plasters. However, organic material in lime will degrade in damp environments particularly on damp external renders. This problem has given rise to the use of polypropylene fibres in new lime renders Usually any dampness in the wall will cause the lime mortar to change colour, indicating the presence