Construction method for repairing scraped stone wall surface of historical building

The invention discloses a construction method for repairing a scraped stone wall surface of a historical building. The method comprises the following steps: S1, detecting a wall surface and removing a hollowing wall skin; s2, cleaning, flattening and repairing are carried out, cement lime mortar is smeared, leveling is carried out, a bottom layer is formed, and the thickness of the bottom layer is 8-10 mm; s3, neat cement paste is smeared, and the thickness of the neat cement paste is 0.8-1.2 mm; the cement limestone mortar is prepared from 0.5 part of grey cement, 1.0 part of white cement, 0.5 part of lime, 4 parts of pebbles, 2 parts of medium sand and 0.6 part of water, the diameter of the pebbles is 3-5 mm, the thickness of the cement limestone mortar is 10-12 mm, and the pebbles are scraped and modified to obtain the pebbles wall surface. According to the method, historical materials and components are reserved to the maximum extent, hollowing, crisp powder, falling, dust and smoke ...