Fine cobble wall repairing method

Abstract

The invention discloses a fine cobble wall repairing method. The method comprises the following steps of chiseling away an original wall whitewash layer and fine cobbles until reaching a blue brick wall; cleaning a base layer and wetting the brick wall; cleaning paint on the surfaces of the chiseled original fine cobbles, counting the particle size, color and proportion of the original fine cobbles, and screening the fine cobble materials with the proper particle size and color according to counting data for later use; plastering bedding mortar; plastering adhesive layer mortar which is cementmortar mixed with 8wt%-12wt% of adhesive; preparing cement-cobble slurry from the screened fine cobble materials and cement; plastering surface cement-cobble slurry at the thickness of 10-12 mm; andperforming curing for 3 days or longer, and then performing water repellent treatment by spraying a water repellent to the wall. According to the fine cobble wall repairing method, the fine cobble wall can be restored according to an original pattern, the original materials and an original process; and the appeal and style of an original building are retained, and the cobbles are uniformly adhered, good in adhesion and high in strength, and the surface is free of holes or cracks.

Description

technical field [0001] The invention relates to the technical field of building walls, in particular to a method for repairing fine pebble walls. Background technique [0002] Most modern houses built at the beginning of the last century are of brick and wood structure. The exterior decoration wall is green brick wall inside, the base layer is lime mortar and bonding layer mortar, fine pebbles are used for decoration, and the outer layer is paint layer. Due to years of rain erosion and weathering, the walls are loose and pebbles fall off, and most of the walls need to be repaired. For the repair of pebble walls of old buildings, the charm and style of the original building should usually be retained. The conventional repair process of pasting pebbles uses a mixture of paper tendons and lime mixed with water, which is not ideal in terms of crack resistance and moisture resistance. Some pebbles from the original wall are also chiseled out, washed and reused on the wall, which...

AI Technical Summary

Problems solved by technology

However, due to the limited quantity of chiseled pebbles, it cannot meet the construction needs.

In addition, the exterior wall of the building has been painted many times, and the paint has completely penetrated into the bottom of the wall, and there are many cracks. It is difficult to restore its original appearance by conventional repair techniques.