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
Rugby Cement The business was first started in 1825 as a small family business by two local businessmen Thomas Walker and his son George Walker when they started producing lime mortar at a site on their land at New Bilton and nearby Newbold-on-Avon, exploiting locally available deposits of what Professor H.B. Woodward described in 1898 as "the finest inland section of lower lias limestone in the country". The first public company the "Rugby Lias Lime & Cement Company Ltd" was founded in 1862. In around 1870 the company began producing portland cement, and the company was renamed the "Rugby Portland Cement Company