High-rise building outer wall waterproof engineering construction quality detection and identification method

Abstract

The invention provides a high-rise building outer wall waterproof engineering construction quality detection and identification method, and relates to the technical field of waterproof detection. The high-rise building outer wall waterproof engineering construction quality detection and identification method specifically comprises the following steps of S1, waterproof layer detection, S2, raw material detection, S3, wall surface detection, S4, accessory structure detection, S5, coating waterproof layer detection, S6, waterproof breathable film detection and S7, outer wall protection layer detection. According to the high-rise building outer wall waterproof engineering construction quality detection and identification method provided by the invention, the detection is more comprehensive, the detection data is more accurate, the detection operation is simpler and quicker, the energy is saved, the environment is protected, and the popularization and the use are facilitated.

Description

Technical Field

[0001] This invention relates to the field of waterproof testing technology, specifically a method for testing and evaluating the construction quality of waterproofing projects for the exterior walls of high-rise buildings. Background Technology

[0002] High-rise buildings are residential buildings with a height greater than 27m and non-single-story factories, warehouses, and other civil buildings with a height greater than 24m. From an architectural perspective, the enclosing structure that forms the boundary between the interior and exterior of a building is called the exterior wall. Its functions include: bearing a certain load, protecting against wind and rain, providing thermal insulation, preventing noise, and ensuring fire safety. During construction, after the exterior walls are completed, they often need to be inspected, which includes quality control procedures such as testing the waterproofing of the exterior walls.

[0003] Existing methods for testing exterior wall waterproofing often involve observation or simply spraying water. These methods are not only incomplete but also produce inaccurate data, which can affect subsequent construction, is irresponsible to residents, and may even lead to dangerous building conditions. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a method for testing and evaluating the construction quality of waterproofing projects on the exterior walls of high-rise buildings, which solves the problems that existing testing methods are too simplistic, not comprehensive enough, and not accurate enough.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for quality inspection and evaluation of waterproofing construction of exterior walls of high-rise buildings, specifically comprising the following steps: S1. Waterproofing layer inspection The waterproof layer must be free of leaks; S2. Raw material inspection The materials used should meet the design requirements; S3. Wall Surface Inspection The exterior walls should be flat and solid, and there should be no hollow areas, loose areas, sand, or peeling. S4. Inspection of auxiliary structures The waterproofing of window openings, through-wall pipes, embedded parts, and termination areas should meet the design requirements; S5. Inspection of Waterproof Coating Layer The waterproof coating should be free of cracks, wrinkles, runs, bubbles, and exposed substrate. S6. Waterproof and breathable membrane testing The waterproof and breathable membrane should be laid flat and fixed firmly, without wrinkles, curling edges, etc., the overlap width should meet the requirements, and the overlap seams and details should be sealed tightly. S7. Inspection of External Wall Protective Layer The external wall protective layer should be flat, firmly fixed, and its structure should meet the design requirements.

[0007] Preferably, the waterproof layer inspection in S1 specifically refers to the inspection of leakage of the external wall waterproof layer, which should be carried out after continuous water spraying for 2 hours or after rain. It checks whether there is any seepage in the internal and external walls. At the same time, if manual water spraying is carried out, the water pressure of the spray should be increased, and a device for recycling the sprayed water should be set up at the bottom of the external wall for multiple cycles.

[0008] Preferably, the raw material testing in S2 specifically includes ensuring that the materials used for exterior wall waterproofing and protection have product qualification certificates and factory inspection reports, and that the types, specifications, and performance of the materials comply with current relevant standards and design requirements. The incoming waterproofing and protection materials should be sampled and re-inspected, and a sampling test report should be submitted. Unqualified materials shall not be used in the project.

[0009] Preferably, the wall surface inspection in S3 specifically involves selecting a sunny day, spraying water on the top layer of the exterior wall, and letting the sprayed water flow down the exterior wall surface from the top layer until the entire exterior wall surface is wetted. Observe the exterior wall surface; if there are uneven, hollow, loose, sandy, or peeling phenomena, the degree of wetting will vary and they are very easy to detect.

[0010] Preferably, the inspection of the auxiliary structure in S4 specifically includes observation and inspection of the concealed works acceptance records.

[0011] Preferably, in step S5, the waterproof coating layer test specifically requires that the total thickness of the waterproof coating layer be between 1 and 2 mm. The test involves checking whether the waterproof coating layer is continuous, whether it forms a whole, and whether it has a waterproof effect through water tightness and water spray tests.

[0012] Preferably, the waterproof and breathable membrane testing in S6 specifically involves using an air permeability tester to test its breathability. Since there is a support, there is no concept of deformation or vibration amplitude for the waterproof and breathable membrane. If it is a waterproof and breathable membrane used for acoustic purposes, it is necessary to test the deformation and vibration amplitude, in which case a deformation tester and an amplitude tester can be used.

[0013] Preferably, the external wall protective layer test in S7 specifically involves applying normal stress through a pull-out test to detect the resistance from the external environment.

[0014] (III) Beneficial Effects

[0015] This invention provides a method for inspecting and evaluating the construction quality of waterproofing projects for the exterior walls of high-rise buildings. It has the following beneficial effects: This invention provides a method for testing and evaluating the construction quality of waterproofing projects for the exterior walls of high-rise buildings. During the testing process, this method is simpler and more efficient in detecting phenomena such as flatness, firmness, hollowness, looseness, sanding, and peeling of the exterior walls, and can quickly identify wall problems. It is also very environmentally friendly, and can effectively save water resources when testing waterproofing performance. Thus, this method not only increases testing efficiency but is also very simple to operate.

[0016] This invention provides a method for testing and evaluating the construction quality of waterproofing projects for the exterior walls of high-rise buildings. Compared with existing methods for testing the waterproofing performance of exterior walls, this method is more comprehensive, can more clearly define the waterproofing performance of the exterior walls, and is more convenient to operate. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0018] Example:

[0019] This invention provides a method for quality inspection and evaluation of waterproofing construction projects for the exterior walls of high-rise buildings, specifically including the following steps: S1. Waterproofing layer inspection The waterproof layer must be free of leaks; S2. Raw material inspection The materials used should meet the design requirements; S3. Wall Surface Inspection The exterior walls should be flat and solid, and there should be no hollow areas, loose areas, sand, or peeling. S4. Inspection of auxiliary structures The waterproofing of window openings, through-wall pipes, embedded parts, and termination areas should meet the design requirements; S5. Inspection of Waterproof Coating Layer The waterproof coating should be free of cracks, wrinkles, runs, bubbles, and exposed substrate. S6. Waterproof and breathable membrane testing The waterproof and breathable membrane should be laid flat and fixed firmly, without wrinkles, curling edges, etc., the overlap width should meet the requirements, and the overlap seams and details should be sealed tightly. S7. Inspection of External Wall Protective Layer The external wall protective layer should be flat, firmly fixed, and its structure should meet the design requirements. The number of construction quality inspections for each sub-item of the building's external wall waterproofing and protection project should be based on the external wall area, with one inspection site for every 500 square meters, each site covering 10 square meters, and no fewer than 3 sites. If the area is less than 500 square meters, it should be calculated as 500 square meters. All joint structures should be inspected, and the inspection locations should be recorded. If a re-inspection is required, the original inspection locations should be avoided.

[0020] The specific waterproofing layer inspection in S1 is that the external wall waterproofing layer leakage inspection should be carried out after continuous water spraying for 2 hours or after rain. It checks whether there is any seepage in the internal and external walls. At the same time, if manual water spraying is carried out, the water pressure of the spray should be increased, and a water recycling device should be set up at the bottom of the external wall for multiple recycling, thereby saving water resources. Under the premise of sunny weather, there should be no moisture on the external wall surface.

[0021] In S2, the specific requirements for raw material testing are that materials used for exterior wall waterproofing and protection should have product certificates of conformity and factory inspection reports. The types, specifications, and performance of the materials should comply with the relevant current standards and design requirements. The waterproofing and protection materials entering the site should be sampled and re-inspected, and a sampling test report should be submitted. Unqualified materials shall not be used in the project.

[0022] The S3 wall surface inspection involves selecting a sunny day and spraying water on the top layer of the exterior wall. The water flows down the surface of the exterior wall from the top layer until the entire surface is wetted. Observe the exterior wall surface. If there are unevenness, hollow areas, loose areas, sand, or peeling, the degree of wetting will be different, making it very easy to find. For example, loose areas will absorb more water and be darker in color, while hollow areas will not be wetted by the sprayed water, making it easier to observe the condition of the exterior wall.

[0023] The specific inspection of the auxiliary structure in S4 involves observation and inspection of the concealed works acceptance records. The specific inspection of the waterproof coating layer in S5 involves ensuring that the total thickness of the waterproof coating layer is between 1 and 2 mm, and testing whether the waterproof coating layer is continuous, whether it forms a whole, and whether it has a waterproof effect through water tightness and water spray tests.

[0024] In S6, the waterproof and breathable membrane testing specifically involves using an air permeability tester to measure its breathability. Because it has a support structure, there is no concept of deformation or vibration amplitude for waterproof and breathable membranes. However, if the waterproof and breathable membrane is used for acoustic purposes, it is necessary to test the deformation and vibration amplitude, in which case a deformation tester and an amplitude tester can be used. In S7, the external wall protective layer testing specifically involves applying normal stress through a pull-out test to test the resistance from external forces, thereby determining whether the external wall protection capability meets the standards.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for detecting and identifying the construction quality of a waterproofing project of an outer wall of a high-rise building, characterized in that, Specifically, the following steps are included: S1. Waterproofing layer inspection The waterproof layer must be free of leaks; S2. Raw material inspection The materials used should meet the design requirements; S3. Wall Surface Inspection The exterior walls should be flat and solid, and there should be no hollow areas, loose areas, sand, or peeling. S4. Inspection of auxiliary structures The waterproofing of window openings, through-wall pipes, embedded parts, and termination areas should meet the design requirements; S5. Inspection of Waterproof Coating Layer The waterproof coating should be free of cracks, wrinkles, runs, bubbles, and exposed substrate. S6. Waterproof and breathable membrane testing The waterproof and breathable membrane should be laid flat and fixed firmly, without wrinkles, curling edges, etc., the overlap width should meet the requirements, and the overlap seams and details should be sealed tightly. S7. Inspection of External Wall Protective Layer The external wall protective layer should be flat, firmly fixed, and its structure should meet the design requirements.

2. The construction quality detection and identification method for waterproofing engineering of high-rise building outer wall according to claim 1, characterized in that: The specific waterproof layer inspection in S1 is that the external wall waterproof layer leakage inspection should be carried out after continuous water spraying for 2 hours or after rain. It checks whether there is any seepage in the internal and external walls. At the same time, if manual water spraying is carried out, the water pressure of the spray should be increased, and a device for recycling the sprayed water should be set up at the bottom of the external wall for multiple cycles.

3. The construction quality detection and identification method for waterproofing engineering of high-rise building outer wall according to claim 1, characterized in that: The specific requirements for raw material testing in S2 are as follows: materials used for waterproofing and protection of exterior walls should have product certificates of conformity and factory inspection reports. The types, specifications, and performance of materials should comply with current relevant standards and design requirements. Waterproofing and protection materials entering the site should be sampled and re-inspected, and a sampling test report should be submitted. Unqualified materials shall not be used in the project.

4. The construction quality detection and identification method for waterproofing engineering of high-rise building outer wall according to claim 1, characterized in that: The specific method for wall surface inspection in S3 is to select a sunny day and spray water on the top layer of the exterior wall. The sprayed water flows down the exterior wall surface from the top layer until the entire exterior wall surface is wetted. Observe the exterior wall surface. If there are uneven, hollow, loose, sandy, or peeling phenomena, the degree of wetting will be different, which is very easy to find.

5. The construction quality detection and identification method for waterproofing engineering of high-rise building outer wall according to claim 1, characterized in that: The specific inspection of the auxiliary structures in S4 includes observation and inspection of the concealed works acceptance records.

6. The construction quality detection and identification method for waterproofing engineering of high-rise building outer wall according to claim 1, characterized in that: The specific testing of the waterproof coating layer in S5 involves ensuring that the total thickness of the waterproof coating layer is between 1 and 2 mm. The waterproof coating layer is tested through water tightness and water spray tests to determine whether it is continuous, whether it forms a whole, and whether it has a waterproof effect.

7. The construction quality detection and identification method for waterproofing engineering of high-rise building outer wall according to claim 1, characterized in that: The specific testing method for the waterproof and breathable membrane in S6 is to use an air permeability tester to test its breathability. Since there is a support, there is no concept of deformation or vibration amplitude for the waterproof and breathable membrane. If it is a waterproof and breathable membrane used for acoustic purposes, it is necessary to test the deformation and vibration amplitude, in which case a deformation tester and an amplitude tester can be used.

8. The method for quality inspection and evaluation of waterproofing projects for exterior walls of high-rise buildings according to claim 1, characterized in that: The specific method for testing the external wall protective layer in S7 is to apply normal stress through a pull-out test to detect its resistance to external forces.