Basement outer wall waterproof system
By constructing a multi-layer waterproofing system on the exterior walls of the basement, the problem of waterproof coatings cracking easily was solved, resulting in longer-lasting waterproofing and reduced maintenance costs.
Patent Information
- Application Number
- CN202423086193.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-13
AI Technical Summary
Existing waterproof coatings for basement exterior walls are prone to cracking and peeling, resulting in reduced waterproofing effectiveness, increased construction costs, and shortened building lifespan.
The system employs a multi-layered waterproofing system, including an anti-corrosion layer, an adhesion layer, and a thermal insulation layer. These layers consist of a leveling layer, a fabric layer, a resin layer, an acrylic resin primer coating, a water-based polyurethane asphalt waterproofing adhesive layer, and a polyurethane thermal insulation protective coating, forming a robust waterproof structure.
It improves the durability of the waterproof coating, prevents cracking and peeling, extends the waterproof lifespan, and reduces maintenance costs.
Smart Images

Figure CN223593585U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to basement waterproof technical field especially relates to a basement outer wall waterproof system. BACKGROUND
[0002] The basement is one of important building construction structures, is usually arranged in the ground, generally provides the space position of parking lot for the tenants, facilitates people to park and uses, makes full use of the additional building space, since the basement is arranged in the ground, its inside is provided with more water pipes and waterways, the underground damp environment can easily cause the seepage of the basement outer wall, thereby influences the environment inside the basement, increases the burden of people's cleaning and finishing, therefore the basement outer wall needs to do waterproof protection.
[0003] The basement outer wall waterproof engineering occupies the important position in the whole building engineering, and the basement outer wall waterproof engineering involves many outer wall structures such as the basement outer wall of building and housing outer wall, and its function is to prevent the seepage of rainwater and domestic water and the erosion of underground water in the designed durable life of building or structure, to ensure that building structure and internal space are not polluted, and to provide people with a comfortable and safe living environment.
[0004] The existing basement outer wall waterproof is mainly brushing waterproof material on the basement outer wall, but as the building use time increases, the waterproof coating is prone to dry cracking and falling off, which reduces the waterproof effect, and the waterproof material needs to be repainted, which not only increases the construction cost, but also causes damage to the basement outer wall, reduces the building service life, and a basement outer wall waterproof system needs to be designed to solve the above problems. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving the shortcomings that the waterproof coating dry cracking and falling off cause damage to the basement outer wall in the prior art, and provides a basement outer wall waterproof system.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] A basement outer wall waterproof system, including wall surface, the outer side of wall surface is sequentially provided with anticorrosive layer, attached layer, waterproof layer and heat insulation protective layer from inside to outside, anticorrosive layer sequentially includes leveling layer, cloth layer and resin layer from inside to outside;Attached layer is acrylic resin primer coating;The waterproof layer sequentially includes first waterproof adhesive layer and second waterproof adhesive layer from inside to outside, and the first waterproof adhesive layer and the second waterproof adhesive layer are all water-based polyurethane asphalt waterproof adhesive coating;The heat insulation protective layer is polyurethane heat insulation protective coating;
[0008] Through the above technical scheme, through the leveling layer of 2mm cement mortar, the cloth layer of 1mm glass fiber non-woven fabric, 0.15kg / m3 The resin layer of the epoxy resin forms an anti-corrosion layer, the outer side of the wall surface is subjected to anti-corrosion treatment, the outer wall is subjected to waterproofing and protection through the adhesion layer, the waterproof layer and the thermal insulation protection layer, not only the risk of the waterproof coating of the basement outer wall being dry and cracked and falling off after long-time use is avoided, but also the waterproof effect is increased, the waterproof life of the basement outer wall is increased, and the subsequent maintenance cost is reduced.
[0009] Further, the leveling layer is a 2mm cement mortar coating.
[0010] Through the above technical scheme, the leveling layer of the cement mortar can be well attached to the surface of the wall, and the wall surface can be leveled, facilitating subsequent waterproof brushing.
[0011] Further, the cloth layer is a 1mm glass fiber cloth layer.
[0012] Through the above technical scheme, the glass fiber cloth layer can make the resin layer attached to the outer side of the leveling layer, and form an anti-corrosion layer with the resin layer and the leveling layer, to prevent corrosion of the outer side of the outer wall.
[0013] Further, the resin layer uses 0.15kg / m 3 The epoxy resin coating layer;
[0014] Through the above technical scheme, the resin layer of the epoxy resin coating layer is a type of coating with epoxy resin and modified epoxy resin as main film-forming substances, which has excellent adhesion, chemical corrosion resistance, good alkali resistance and hard coating.
[0015] Further, the gap of the wall surface is provided with a filling layer, and the filling layer is a single-liquid polyurethane joint filling coating.
[0016] Through the above technical scheme, the gap of the outer side of the wall surface can be filled by the filling layer of the single-liquid polyurethane joint filling coating, the convenience of subsequent leveling is increased, and the single-liquid polyurethane joint filling coating is a high-elasticity joint filling material which can be attached to the surface of various materials to increase the adhesion effect.
[0017] Further, the adhesion layer uses 0.15kg / m 3 The first waterproof adhesive layer and the second waterproof adhesive layer each use 0.15kg / m 3 The thermal insulation protection layer uses 0.6kg / m 3 ;
[0018] Through the calculation of the coating amount, the waste of materials is prevented, and the wall surface is not prone to dry cracking due to the over-thickness of the coating.
[0019] The utility model has the advantages of the following beneficial effects:
[0020] The utility model discloses a kind of basement outer wall waterproof systems, including wall surface, anticorrosive layer, filling layer, 2mm cement mortar leveling layer, 1mm glass fiber non-woven cloth cloth layer, resin layer, 0.15kg / m 3 The resin layer of epoxy resin is anticorrosive to the outer side of wall surface, and finally 0.15kg / m 3 Acrylic resin primer coating, 0.15kg / m 3 Water-based polyurethane asphalt waterproof glue and 0.15kg / m 3 Polyurethane thermal insulation protective coating are coated in sequence, forming adhesion layer, first waterproof adhesive layer, second waterproof adhesive layer and thermal insulation protective layer, waterproof and protection effect are carried out to outer wall, not only avoid the risk that basement outer wall waterproof coating is dry and falls off with long-time use, can also increase waterproof effect, increase the waterproof life of basement outer wall, reduce subsequent maintenance cost. BRIEF DESCRIPTION OF DRAWINGS
[0021] Fig. 1 It is a three-dimensional structure schematic view of the basement outer wall waterproof system of the utility model;
[0022] Fig. 2 It is a three-dimensional structure sectional view of the basement outer wall waterproof system of the utility model;
[0023] Fig. 3 It is a sectional view of the basement outer wall waterproof system of the utility model.
[0024] LEGEND:
[0025] 1, wall surface; 2, anticorrosive layer; 201, leveling layer; 202, cloth layer; 203, resin layer; 3, adhesion layer; 4, waterproof layer; 401, first waterproof adhesive layer; 402, second waterproof adhesive layer; 5, thermal insulation protective layer; 6, filling layer. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0027] Embodiment one:
[0028] Refer to Figs. 1-3The utility model provides a kind of basement outer wall waterproof system of an embodiment: a kind of basement outer wall waterproof system, including wall surface 1, the outside of wall surface 1 is sequentially provided with anticorrosive layer 2, attached layer 3, waterproof layer 4 and heat insulation protective layer 5 from inside to outside, anticorrosive layer 2 sequentially includes leveling layer 201, cloth layer 202 and resin layer 203 from inside to outside;Attached layer 3 is acrylic resin primer coating;Waterproof layer sequentially includes there is first waterproof adhesive layer 401 and second waterproof adhesive layer 402 from inside to outside, and first waterproof adhesive layer 401 and second waterproof adhesive layer 402 are all water-based polyurethane asphalt waterproof adhesive coating;Heat insulation protective layer 5 is polyurethane heat insulation protective coating.
[0029] Preferably: leveling layer 201 is 2mm cement mortar coating, and the leveling layer 201 of cement mortar can be well attached to the surface of wall surface 1, and can also level wall surface 1, to facilitate subsequent waterproof brushing.
[0030] Preferably: cloth layer 202 is 1mm glass fiber cloth layer, and the glass fiber cloth layer can make resin layer 203 attached to the outside of leveling layer 201, and form anticorrosive layer 2 with resin layer 203 and leveling layer 201, to prevent corrosion of the outside of outer wall 1.
[0031] Preferably: the material of resin layer 203 is 0.15kg / m 3 Epoxy resin coating, the resin layer 203 of epoxy resin coating is a kind of coating with epoxy resin and modified epoxy resin as main film-forming material, with excellent adhesion, chemical corrosion resistance, better alkali resistance, hard coating, modified epoxy resin is toughened with liquid chlorobutadiene-methyl methacrylate copolymer, which can improve shear strength, impact strength and peel tension.
[0032] Preferably: the gap of wall surface 1 is provided with filling layer 6, and the filling layer 6 is single-liquid polyurethane joint filling coating, which can fill the gap of the outside of wall surface 1, increase the convenience of subsequent leveling, and the single-liquid polyurethane joint filling coating is a high-elasticity joint filling material, which can be attached to the surface of various materials to increase the adhesion effect.
[0033] Preferably: the material of attached layer 3 is 0.15kg / m 3 , and the material of first waterproof adhesive layer 401 and second waterproof adhesive layer 402 is 0.15kg / m 3 , the material of heat insulation protective layer 5 is 0.6kg / m 3 , by calculating the coating amount, to prevent material waste and avoid wall surface cracking caused by thick coating.
[0034] Embodiment two:
[0035] The embodiment is a construction step of a basement outer wall waterproof system, comprising the following steps:
[0036] 1. The basement outer wall surface of the cast concrete which is less than 14 days and not dehydrated or dry is cleaned, the outer side of the wall surface is solid, clean, no oil stains and no cement debris;
[0037] 2. The single liquid type polyurethane joint coating is coated on the gap of the outer wall surface, the outer wall surface is smooth, and the 2mm cement mortar leveling layer is brushed on the outer wall surface, when the cement mortar leveling layer is in the semi-dry state, the 1mm glass fiber cloth layer is laid and the cloth layer is completely embedded;
[0038] 3. The 0.15kg / m 3 of epoxy resin layer is coated on the outer side of the glass fiber cloth layer, and the leveling layer and the glass fiber cloth layer form a corrosion prevention layer, and the outer wall is prevented from corrosion;
[0039] 4. The 0.15kg / m 3 of acrylic resin primer is diluted with three times of water, and is coated on the outer side of the resin layer by using a roller or a brush, and the 0.15kg / m 3 of water-based polyurethane asphalt waterproof adhesive is coated on the outer side of the adhesive layer by using a roller or a brush, and is sprayed in two layers, and the second layer is sprayed after the first layer is dried;
[0040] 5. The 0.15kg / m 3 of polyurethane thermal insulation protection is sprayed on the outer side of the second waterproof adhesive layer by using a professional spraying machine, and the spraying temperature is controlled to be 50℃;
[0041] 6. After the corrosion prevention layer, the adhesive layer, the waterproof layer and the thermal insulation protection layer are coated, 72 hours are maintained.
[0042] Finally, it should be noted that: the above only for the preferred embodiments of the utility model have been described, and are not used to limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.
Claims
1. A waterproofing system for an external basement wall comprising a wall surface (1), characterized in that: The outer side of the wall surface (1) is sequentially provided with an anti-corrosion layer (2), an adhesion layer (3), a waterproof layer (4) and a thermal insulation protective layer (5) from inside to outside, the anti-corrosion layer (2) sequentially comprises a leveling layer (201), a cloth layer (202) and a resin layer (203) from inside to outside; The adhesion layer (3) is an acrylic resin primer coating; The waterproof layer sequentially comprises a first waterproof adhesive layer (401) and a second waterproof adhesive layer (402) from inside to outside, and the first waterproof adhesive layer (401) and the second waterproof adhesive layer (402) are both water-based polyurethane asphalt waterproof adhesive coating; The thermal insulation protective layer (5) is a polyurethane thermal insulation protective coating.
2. The basement exterior wall waterproofing system of claim 1, wherein: The leveling layer (201) is a 2mm cement mortar coating.
3. The basement exterior wall waterproofing system of claim 1, wherein: The cloth layer (202) is a 1mm glass fiber cloth layer.
4. The basement exterior wall waterproofing system of claim 1, wherein: The resin layer (203) is applied at 0.15 kg / m 3 Epoxy resin coating.
5. The basement exterior wall waterproofing system of claim 1, wherein: The gap of the wall surface (1) is provided with a filling layer (6), and the filling layer (6) is a single-liquid polyurethane filling coating.
6. The basement exterior wall waterproofing system of claim 1, wherein: The material of the attachment layer (3) is 0.15 kg / m 3 The material of the first waterproof adhesive layer (401) and the second waterproof adhesive layer (402) is 0.15 kg / m 3 The material of the heat insulation protective layer (5) is 0.6 kg / m 3 .