Composite waterproof coating structure of retaining wall

Abstract

The utility model relates to the technical field of retaining wall waterproof coating structures, in particular to a composite waterproof coating structure of a retaining wall, which comprises a retaining wall structural body, a waterproof layer and a heat insulation protective layer are sequentially compounded on the inner side wall of the retaining wall structural body, and an expansion water stop strip is embedded in the retaining wall structural body. The waterproof layer and the heat insulation protection layer are sequentially compounded on the inner side wall of the retaining wall structure body, the heat insulation protection layer conducts heat insulation protection on the composite waterproof layer and the inner side wall of the retaining wall structure body, and the waterproof effect of the inner side wall of the retaining wall structure body is improved through the composite waterproof layer; water seepage caused by the fact that the inner side wall of the retaining wall structural body is soaked in water in the rainy season is avoided; moreover, the expansion water-stop strip is pre-buried in the retaining wall structure body, even if the composite waterproof layer is used for a long time and the retaining wall structure body cracks to cause water seepage, the expansion water-stop strip can expand with water and play a role in preventing seepage and leakage, and the waterproof effect of the retaining wall is improved on the whole.

Description

Technical Field

[0001] The utility model relates to the technical field of retaining wall waterproof coating structures, in particular to a composite waterproof coating structure of a retaining wall. Background Art

[0002] A retaining wall is a structure that supports the roadbed fill or hillside soil and prevents the fill or soil from deforming and becoming unstable. In the cross section of a retaining wall, the part that is in direct contact with the supported soil is called the wall back; the part facing the air opposite to the wall back is called the wall face; the part that is in direct contact with the foundation is called the base; the top surface of the wall opposite to the base is called the wall top; the front end of the base is called the wall toe; and the rear end of the base is called the wall heel.

[0003] The function of retaining walls is to suppress the tilt of soil structure, so they are often supported by concrete to make them more durable. However, existing retaining walls are not waterproof and are easily soaked in water or even seep during the rainy season. If the retaining wall is used in the basement, it is extremely susceptible to water seepage and poses a safety hazard. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the utility model aims to provide a composite waterproof coating structure for a retaining wall.

[0005] The purpose of the utility model is achieved through the following technical scheme: a composite waterproof coating structure of a retaining wall, comprising a retaining wall structure, the inner wall of the retaining wall structure is compounded with a waterproof layer and a heat insulation protective layer in sequence, and the retaining wall structure is pre-embedded with an expansion waterstop strip.

[0006] Preferably, the waterproof layer comprises a penetrating crystalline waterproof coating, a waterproof penetrating primer layer and a waterproof leak-proof paint layer which are sequentially compounded on the inner wall of the retaining wall structure.

[0007] Preferably, the permeable crystallization waterproof coating is a cement-based high-efficiency permeable crystallization waterproof material coating, and the coating amount of the permeable crystallization waterproof coating is 1.3-1.8 kg / m 2 .

[0008] Preferably, the waterproof penetration primer layer is a waterproof interface adhesive coating.

[0009] Preferably, the waterproof leak-proof paint layer is a water-based polyurethane asphalt waterproof coating, and the thickness of the waterproof leak-proof paint layer is 0.4-0.8 mm.

[0010] Preferably, the thermal insulation protective layer is a polyurethane foam thermal insulation protective layer.

[0011] Preferably, the retaining wall structure is a concrete retaining wall doped with cement-based high-efficiency permeable crystalline waterproof material.

[0012] The beneficial effects of the utility model are as follows: the composite waterproof coating structure of the retaining wall of the utility model sequentially composites a waterproof layer and a heat-insulating protective layer on the inner wall of the retaining wall structure, and the heat-insulating protective layer performs heat-insulating protection on the composite waterproof layer and the inner wall of the retaining wall structure, and utilizes the composite waterproof layer to improve the waterproof effect of the inner wall of the retaining wall structure, thereby preventing the inner wall of the retaining wall structure from being soaked in water and causing water seepage during the rainy season; moreover, the retaining wall structure is pre-embedded with an expansion waterstop strip, and even if the composite waterproof layer has been used for a long time and cracks appear in the retaining wall structure and water seeps, the expansion waterstop strip can swell in contact with water and play a role in preventing seepage and leakage, thereby improving the waterproof effect of the retaining wall as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] The accompanying drawings are marked as follows: 1. retaining wall structure; 2. waterproof layer; 21. penetrating crystalline waterproof coating; 22. waterproof penetrating primer layer; 23. waterproof leak-proof paint layer; 3. thermal insulation protective layer; 4. expansion water stop strip. DETAILED DESCRIPTION

[0015] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0016] like Figure 1 As shown, a composite waterproof coating structure of a retaining wall comprises a retaining wall structure 1, the inner side wall of the retaining wall structure 1 is compounded with a waterproof layer 2 and a heat insulation protective layer 3 in sequence, and the retaining wall structure 1 is pre-embedded with an expansion water stop strip 4.

[0017] The composite waterproof coating structure of the retaining wall has a composite waterproof layer 2 and a heat-insulating protective layer 3 on the inner wall of the retaining wall structure 1 in sequence, and the heat-insulating protective layer 3 performs heat-insulating protection on the composite waterproof layer 2 and the inner wall of the retaining wall structure 1, and the composite waterproof layer 2 is used to improve the waterproof effect of the inner wall of the retaining wall structure 1 to prevent the inner wall of the retaining wall structure 1 from being soaked in water and leaking during the rainy season; moreover, the retaining wall structure 1 is pre-embedded with an expansion waterstop strip 4, even if the composite waterproof layer 2 is used for a long time and the retaining wall structure 1 has cracks and leaks, the expansion waterstop strip 4 can swell when it encounters water and play a role in preventing seepage and leakage, thereby improving the waterproof effect of the retaining wall as a whole.

[0018] Furthermore, the waterproof layer 2 includes a permeable crystal waterproof coating 21, a waterproof permeable primer layer 22 and a waterproof leak-proof paint layer 23 which are sequentially compounded on the inner side wall of the retaining wall structure 1. The permeable crystal waterproof coating 21 is used to block the leaking holes and cracks on the surface of the retaining wall structure 1, thereby preventing the retaining wall structure 1 from leaking, slowing down the aging of the structure, and reducing the maintenance cost; the waterproof permeable primer layer 22 and the waterproof leak-proof paint layer 23 are used to further improve the waterproof effect.

[0019] Further, the permeable crystallization waterproof coating 21 is a cement-based high-efficiency permeable crystallization waterproof material coating, and the coating amount of the permeable crystallization waterproof coating 21 is 1.3-1.8kg / m2, preferably 1.5kg / m2. Preferably, the cement-based high-efficiency permeable crystallization waterproof material coating is coated with a cement-based high-efficiency permeable crystallization waterproof material of flat model T-308M. The cement-based high-efficiency permeable crystallization waterproof material has excellent anti-seepage and waterproof effects, bonding strength, tensile strength, compressive strength and bending strength. Coating it on the concrete surface can further improve its anti-seepage and waterproof effects, thereby helping to extend the service life of the concrete. It is only used here.

[0020] Furthermore, the waterproof penetration primer layer 22 is a waterproof interface adhesive coating. The waterproof interface adhesive coating is used for interface bonding to improve the adhesion, waterproofness, and durability of the composite waterproof layer 2 as a whole, penetrate into the cement and aggregate of the retaining wall structure 1, and more tightly bond the cement and aggregate. Preferably, the waterproof interface adhesive coating is coated with a flat adhesive of type T-007, which has excellent interface bonding and strengthens the adhesion, waterproofness, and durability of cement mortar, and is only used here.

[0021] Furthermore, the waterproof leak-proof paint layer 23 is a water-based polyurethane asphalt waterproof coating, and the thickness of the waterproof leak-proof paint layer 23 is 0.4-0.8 mm, preferably 0.5 mm. Preferably, the water-based polyurethane asphalt waterproof coating is coated with a flat water-based polyurethane asphalt waterproof material of model T-100, which can be well adhered to various material surfaces such as concrete, stone, metal and wood, and is suitable for various waterproof engineering applications in new construction or renovation of old structures. It can also be directly constructed on wet surfaces and can be used to patch holes and cracks on structures. It is only used here.

[0022] Furthermore, the thermal insulation protective layer 3 is a polyurethane foam thermal insulation protective layer 3. The polyurethane foam thermal insulation protective layer 3 is made of a flat suitable model PU-130 two-component foamed closed polyurethane thermal insulation protective material coated by a standard foaming spraying device, and the foam body completely covers the entire structure to form a lightweight blanket-like protective layer, which controls the comfort of the inside or outside of the structure and further improves the integrity of the structure. It itself has the functions of heat insulation, heat preservation, and sealing, and is only used here.

[0023] Furthermore, the retaining wall structure 1 is a concrete retaining wall doped with cement-based high-efficiency penetrating crystalline waterproof material. After this cement-based high-efficiency penetrating crystalline waterproof material is applied to the concrete, the penetrating crystalline effective ingredients can be driven by water or moisture to react with the free lime in the concrete to form water-repellent crystals and fill leaking holes and cracks. It can be effectively used in concrete for civil structures and maritime engineering to prevent concrete leakage and slow down structural aging, greatly reducing maintenance costs. Preferably, the concrete retaining wall doped with cement-based high-efficiency penetrating crystalline waterproof material is prepared according to a cement-based high-efficiency penetrating crystalline waterproof material and its preparation method with patent application number CN202010603524.5, and the method of use in paragraphs 0032-0036 of its specification, which belongs to the prior art and is only used here.

[0024] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present invention is within the protection scope of the present invention.

Claims

1. A composite waterproof coating structure for a retaining wall, comprising a retaining wall structure, Features: The inner side wall of the retaining wall structure is compounded with a waterproof layer and a heat insulation protective layer in sequence, and the retaining wall structure is pre-embedded with an expansion water stop strip; The waterproof layer comprises a permeable crystal waterproof coating, a waterproof permeable primer layer and a waterproof leak-proof paint layer which are sequentially compounded on the inner side wall of the retaining wall structure.

2. The composite waterproof coating structure of a retaining wall according to claim 1, Features: The penetrating crystallization waterproof coating is a cement-based high-efficiency penetrating crystallization waterproof material coating, and the coating amount of the penetrating crystallization waterproof coating is 1.3-1.8kg / m 2 .

3. The composite waterproof coating structure of a retaining wall according to claim 1, Features: The waterproof penetration primer layer is a waterproof interface adhesive coating.

4. The composite waterproof coating structure of a retaining wall according to claim 1, Features: The waterproof leak-proof paint layer is a water-based polyurethane asphalt waterproof coating, and the thickness of the waterproof leak-proof paint layer is 0.4-0.8mm.

5. The composite waterproof coating structure of a retaining wall according to claim 1, Features: The heat-insulating protective layer is a polyurethane foam heat-insulating protective layer.

6. The composite waterproof coating structure of a retaining wall according to claim 1, Features: The retaining wall structure is a concrete retaining wall doped with cement-based high-efficiency permeable crystalline waterproof material.

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