Building micro-crack repairing method

Abstract

The invention discloses a building micro-crack repairing method which comprises the following steps: S2, punching at different points: at the moment, vertically punching at the edge of a crack, forming a new hole at a position 40-50cm away from the crack by taking the hole as a starting point, and at the same time, placing a hole forming device on the surface of a building to obliquely form another hole on one side of all the holes, the invention relates to the technical field of building outer wall repairing. According to the building micro-crack repairing method, by vertically forming the holes and obliquely forming the holes, careful detailed investigation and rapid mastering of the actual cracking condition in the building are achieved, and meanwhile effective retention and sufficient permeation of poured slurry are guaranteed; by means of the intermittent to-be-solidified grouting mode, secondary measure treatment and communication between the middle of the obliquely-formed hole and the position, close to the bottom, of the vertically-formed hole, the repairing effect after grout grouting is improved, meanwhile, sufficient permeation of grout in the crack is further improved, waste of the grout is reduced, and the building repairing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of repairing external walls of buildings, in particular to a method for repairing fine cracks in buildings. Background technique [0002] During the use of buildings, building materials will produce cracks under the influence of many factors, such as physical action, chemical action and mechanical action; physical action is the alternating change of ambient temperature and humidity, and the material will undergo these actions. Expansion, shrinkage or internal stress, long-term repeated action, will gradually destroy the material; chemical action includes acid, alkali, salt and other solutions in atmospheric and environmental water or other harmful substances on the material, as well as sunlight, ultraviolet rays, etc. The effect of materials; mechanical effects include the continuous action of loads, fatigue, impact, wear, and abrasion caused by alternating loads on materials. Structural cracks are ubiquito...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for repairing micro-cracks in buildings, which solves the problem of repairing micro-cracks in existing buildings, without considering the actual cracking inside the building, and most of the repairing glue dripped in is due to pressure or The crack direction factor stays on the surface of the crack in the building and does not flow into the interior for sufficient penetration, which greatly reduces the repair effect

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