Abstract
The paper describes lime mortars used for restoration of monuments and historic buildings, as well as for finishing of newly constructed facilities.To improve the quality of lime mortars we recommend using nanostructured additives (silica sol and its modifications, hydrated sodium silicates, organic mineral additives).We propose the technology of producing modifiers, with the use of local materials.The maturing time of mortars modified by additives has been calculated.The compatibility of modified mortars and previously lime-washed surfaces has been examined.The types of limewash pigments in a wide range of shades have been selected.To enlarge the range of shades we recommend using local materials, such as sand clay of the Nizhny Ablyazovsk deposit (Kuznetsky district, Penza region, Russia).