Lime Mortar - Restoration of Historical Buildings

Mortar composed of lime, aggregate (sand), plus water. It is one of the oldest known types of mortar, (4th century BC) known to be you in Ancient Rome and Greece.

When ordinary portland cement (OPC) was introduced during the 19th century the use of lime mortar in new constructions declined, largely due to portland's ease of use, quick setting and compressive strength. However the soft, porous properties of lime mortar provide certain advantages when working with softer building materials such as natural stone and terracotta. For this reason, while OPC continues to be commonly used in brick and concrete construction, in the repair of older, stone-built structures and the restoration of historical buildings the use of OPC has largely been discredited.