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 kept moist and access of CO from the air is possible. It will not set when submersed in water. When a very thick layer or several layers are applied, the lime can remain soft for weeks. The curing time of lime
Thick bed mortar and materials, the potential strengths of the thick bed mortar system have increased. Quality controlled manufacturing processes create thick bed mortar mixes which combine carefully graded, high quality aggregates (sand) in a precise ratio with portland cement. This means that a consistent mix can be achieved without the need for a laborer to blend sand/cement and possibly lime at the jobsite. These pre-packaged mortars also eliminate the problems caused by excessively damp sand, incorrect mixing ratios, quality of the raw materials, and piles of sand on a jobsite. Today's thick bed mortars can be fortified with the inclusion of a