Outer wall transformation construction method

Abstract

The invention provides an outer wall transformation construction method. The outer wall transformation construction method comprises the following steps that S1, firstly, a wall surface is comprehensively checked, and loose, hollowing and cracking parts are marked; S2, local chiseling, repairing and flattening are arranged; S3, after repairing and flattening are achieved, a stainless steel mesh is added, and fixing is achieved by adopting a fixing piece; S4, batch anti-crack putty construction is carried out; S5, coating process construction is carried out; and S6, after putty construction of a coating process is completed, temperature shrinkage joints are cut in a large-area whole-body wall surface, and special structural weather-proof sealant is used for filling and sealing. By optimizing the process, the completeness of the wall surface is guaranteed, the stainless steel mesh is added on the basis, the wall surface can be effectively prevented and reinforced, hidden dangers caused by falling due to secondary cracking and hollowing of the wall surface after decades are avoided and reduced, meanwhile, hollowing and cracking parts are accurately repaired. The influence of flying dust, noise, water seepage and falling objects caused by large-area blind chiseling is avoided, the construction period of transformation is shortened, and the construction cost is reduced.

Description

【Technical field】 [0001] The invention relates to the technical field of building transformation, in particular to a construction method for exterior wall transformation. 【Background technique】 [0002] Nowadays, with the passage of time, the high-rise exterior walls generally have phenomena such as cracking and hollowing of the exterior walls, which cause water seepage and shedding of the walls, which seriously affect the normal life and travel of ordinary people and pose serious safety hazards. For this reason, many communities have also begun to arrange for the renovation and repair of the facade in response to the situation of the facade. It still affects people's life, safety, travel and other aspects. [0003] The repair process at this stage is to remove all the original external wall surface layers to the structural surface → clean the wall surface → repaint the external wall surface to the original thickness (2-3 times) → spray water on the wall surface → putty con...

AI Technical Summary

Problems solved by technology

[0004] Since most of the repaired buildings are high-rise buildings, external scaffolding cannot be erected for closed construction, and hanging baskets can only be used for construction. However, the following problems exist in the removal of the original wall plaster layer: 1. A large number of cuttings before chiseling will cause serious problems. A lot of dust; 2. When chiseling the wall, the chisel tool will generate a lot of noise and vibration; 3. There will be hidden dangers of objects falling during demolition; 4. The workload of demolition of a single facade is large, which will affect a single facade The progress of the next step; 5. Due to the progress of the demolished wall, the base wall is exposed for a long time, which increases the hidden danger of water seepage; 6. In the later stage of painting, the wall needs to be cleaned and maintained with water, which also increases the hidden danger of water seepage , and the large area of ​​painting failed to ensure timely supply of vertical transportation of materials, resulting in construction joints during construction, thus burying hidden dangers of wall cracking and hollowing

7. Increase the overall construction cost; 8. The construction period is long; 9. It has a greater impact on the safety, life and travel of ordinary people; for the above-mentioned high-rise buildings that are not suitable for large-scale chiseling and painting, a foreign Wall renovation construction method