Basement downstream face waterproof structure

By employing a multi-layered waterproof structure consisting of penetrating crystalline waterproof coating and silica cement mortar layer on the back side of the basement, the leakage problem during basement back-water repair was solved, achieving a highly efficient and low-cost waterproofing effect while enhancing impermeability and durability.

CN224031760UActive Publication Date: 2026-03-24ZHEJIANG CONSTRUCTION SPECIAL TECHNOLOGY ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing methods for repairing the back side of basements have problems such as ineffective sealing of leaks, short repair time, and short-lasting waterproofing function. In addition, conventional back side repairs are costly.

Method used

A multi-layered waterproof structure is formed by using a penetrating crystalline waterproof coating layer and a silica cement mortar layer, combined with an L-shaped steel wire mesh and a waterproof and mildew-proof layer, including specific waterproofing treatments for walls, floors, and pipe trenches.

Benefits of technology

It improves maintenance efficiency, enhances waterproof and seepage-proof functions, reduces maintenance costs, and possesses comprehensive properties such as waterproofing, crack resistance, corrosion resistance, and moisture resistance, thereby improving long-term stability and durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a basement downstream face waterproof structure, which belongs to the technical field of waterproof structures and comprises a capillary crystalline waterproof coating layer arranged on a waterproof structure body, a siliceous cement mortar layer is arranged on the capillary crystalline waterproof coating layer, and the siliceous cement mortar layer comprises waterproof agents. By adopting a limiting technology, the basement exterior wall and the downstream face of the bottom plate are maintained, effective plugging is conducted through a limited material after leakage points are found, the maintenance time efficiency is greatly improved, the concrete capillary pore structure can be effectively improved, a concrete internal capillary pore channel can be blocked, and the anti-seepage and waterproof functions are remarkably improved; meanwhile, the cement has the effects of enhancing, reducing water, resisting crack and the like, can reduce cement hydration heat and inhibit alkali-aggregate reaction, and improves long-term stability; the comprehensive performance can achieve the effects of long-term water resistance, crack resistance, corrosion resistance, moisture resistance and durability improvement; the concrete self-waterproofing agent has excellent compactness, hydrophobicity and impermeability, not only can achieve the self-waterproofing effect of concrete, but also has a micro-expansion effect, and has the advantages of strong interface adhesion, convenience in application, simplicity in operation and lower comprehensive cost.
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Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof structure technical field especially relates to a basement backwater surface waterproof structure. BACKGROUND

[0002] At present, the most effective method for basement leakage maintenance is water surface maintenance, but the water surface maintenance cost is high, and there are many restrictions, among which the bottom plate water surface maintenance is basically impossible. Therefore, the most commonly used method is backwater surface maintenance. The general backwater surface maintenance mainly passes through grouting treatment, and then ordinary cement mortar or ordinary concrete is used for covering, and there are many problems in grouting depth, grouting pressure, grouting spacing and the selection of mortar and concrete, resulting in poor maintenance effect, repeated maintenance and great trouble to the owners. The problems of conventional backwater surface maintenance are as follows: the leakage point cannot be effectively plugged; one leakage point is plugged, and water leaks out from another place; the maintenance time is short, and the waterproof function is lost soon after maintenance, so that the treatment has to be re-performed. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the basement backwater surface waterproof structure is provided to solve the problems in the background art.

[0004] In order to achieve the above-mentioned utility model purposes, the basement backwater surface waterproof structure is provided, which comprises a permeable crystalline waterproof coating layer arranged on a waterproof structure body, a siliceous cement mortar layer is arranged on the permeable crystalline waterproof coating layer, and a waterproof agent is included in the siliceous cement mortar layer.

[0005] Further, the thickness of the permeable crystalline waterproof coating layer is 1.5mm.

[0006] Further, when the waterproof structure body is a wall surface, the siliceous cement mortar layer comprises a first cement mortar layer, a second cement mortar layer, a third cement mortar layer and a fourth cement mortar layer arranged in sequence, the thickness of the first cement mortar layer, the second cement mortar layer, the third cement mortar layer and the fourth cement mortar layer is between 8-12mm, an L-shaped steel wire mesh is arranged between the first cement mortar layer and the wall surface, and the bottom of the first cement mortar layer, the second cement mortar layer, the third cement mortar layer and the fourth cement mortar layer is in contact with the L-shaped steel wire mesh.

[0007] Further, a waterproof and mildew-proof layer is further arranged on the fourth cement mortar layer.

[0008] Further, when the waterproof structure body is a pipeline trench, the siliceous cement mortar layer comprises a fifth cement mortar layer, and the thickness of the fifth cement mortar layer is 50mm.

[0009] Further, when the waterproof structure body is a ground, the siliceous cement mortar layer comprises a sixth cement mortar layer, the thickness of the sixth cement mortar layer is 50-100mm, and a steel mesh is arranged in the sixth cement mortar layer.

[0010] Compared with the prior art, the utility model has the advantages of:

[0011] The application adopts the limited technology, finds the leakage point when repairing the basement outer wall and the backwater surface of the bottom plate, and effectively blocks the leakage point through the limited material, thereby greatly improving the repair efficiency, effectively improving the capillary pore structure of the concrete, blocking the capillary pore channel in the concrete, significantly improving the anti-permeation waterproof function, and simultaneously having the effects of reinforcement, water reduction, crack resistance and the like, and can reduce the cement hydration heat and inhibit the alkali-aggregate reaction, thereby improving the long-term stability; the comprehensive performance can achieve the effects of long-term waterproofing, crack resistance, corrosion resistance, moisture resistance and durability improvement; the excellent compactness, hydrophobicity and impermeability not only can achieve the self-waterproofing effect of the concrete, but also have the effect of micro-expansion, the interface adhesion is strong, the application is convenient, the operation is simple, and the comprehensive cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Fig. 1 is a structural schematic view of the embodiment 1 of the utility model;

[0013] Figure 2 Fig. 2 is a structural schematic view of the embodiment 2 of the utility model;

[0014] Figure 3 Fig. 3 is a structural schematic view of the embodiment 3 of the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the utility model, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The embodiments of the utility model will be described in combination with the drawings.

[0016] Embodiment 1

[0017] Reference Figure 1, when the waterproof structure body is a wall surface, that is, when the waterproofing is performed on the backwater surface wall of the basement, the wall surface is one side of the wall 2, the wall 2 is vertically arranged on the floor layer 1, a 1.5mm-thick wall surface permeable crystalline waterproof material layer 3 is coated on the wall surface, a first cement mortar layer 4, a second cement mortar layer 5, a third cement mortar layer 6 and a fourth cement mortar layer 7 are sequentially arranged on the permeable crystalline waterproof material layer, the thicknesses of the first cement mortar layer 4, the second cement mortar layer 5, the third cement mortar layer 6 and the fourth cement mortar layer 7 are all between 8mm and 12mm, which can be selected according to requirements, the first cement mortar layer 4, the second cement mortar layer 5, the third cement mortar layer 6 and the fourth cement mortar layer 7 are better arranged on the wall 2, an L-shaped steel wire mesh 8 is arranged between the first cement mortar layer 3 and the wall surface, the bottoms of the first cement mortar layer 4, the second cement mortar layer 5, the third cement mortar layer 6 and the fourth cement mortar layer 7 are in contact with the L-shaped steel wire mesh 8, so that the stability of the structure is ensured;

[0018] The first cement mortar layer 4, the second cement mortar layer 5, the third cement mortar layer 6 and the fourth cement mortar layer 7 can all be JX-I type siliceous anti-cracking waterproof agent mixed with 10% cement by mass, and the mass ratio of cement, medium sand, waterproof agent and water in the cement mortar is 1:3.3:0.1:0.60, the thickness of the first cement mortar layer 4, the second cement mortar layer 5, the third cement mortar layer 6 and the fourth cement mortar layer 7 is preferably 10mm, the aggregate in the mortar is medium sand with a fineness modulus of 2.5, and the cement is P.O cement with a strength grade of 32.5, and the aggregate used in the application is medium sand.

[0019] A waterproof and mildew-proof layer is further arranged on the fourth cement mortar layer 7, and an interface agent can be uniformly coated on the cement mortar before the waterproof and mildew-proof layer is coated, and the interface agent used in the application is EL9062 ordinary interface agent.

[0020] Example 2

[0021] Reference Figure 2 When the waterproof structure body is a ground surface, the ground surface to be treated is the upper surface of the ground layer 12, a 1.5mm-thick ground surface permeable crystalline waterproof material layer 13 is arranged on the upper surface, a sixth cement mortar layer 14 is arranged on the ground surface permeable crystalline waterproof material layer 13, the thickness of the sixth cement mortar layer 14 is 50mm to 100mm, and the specific size can be set according to requirements, a steel mesh 17 is arranged in the sixth cement mortar layer 14 to ensure the stability of the overall structure of the sixth cement mortar layer 14 with a relatively large thickness, the sixth cement mortar layer 14 is C25 waterproof fine aggregate concrete mixed with 10% JX-II waterproof agent, a 20mm-thick C25 waterproof fine aggregate concrete layer is further arranged on the sixth cement mortar layer 14, and a 1:2.5 cement mortar layer mixed with 10% JX-I waterproof agent can be further arranged on the C25 waterproof fine aggregate concrete layer.

[0022] Embodiment 3

[0023] With reference to Figure 3 When the waterproof structure body is a pipeline trench, the pipeline trench is arranged on a ground layer 9, a layer of 1.5mm-thick pipeline trench permeable crystalline waterproof material layer 10 is arranged in the pipeline trench, a fifth cement mortar layer 11 is arranged on the pipeline trench permeable crystalline waterproof material layer 10, the thickness of the fifth cement mortar layer 11 is 50mm, and the fifth cement mortar layer 11 is C25 waterproof fine stone concrete mixed with 10% JX-Ⅱ waterproof agent.

[0024] The technical scheme of the present application is described above in combination with specific embodiments, but it should be noted that the above description is only for explaining the scheme of the present application, and cannot be interpreted as a specific limitation on the protection scope of the present application in any way. Based on the above explanation, other specific embodiments or equivalent substitutions of the present application that can be thought of by those skilled in the art without creative labor will fall within the protection scope of the present application.

Claims

1. A waterproof structure for a backwater surface of a basement, characterized by comprising: a waterproofing material; a waterproofing material support; and a waterproofing material support support. The waterproof structure body is a wall surface, the siliceous cement mortar layer comprises a first cement mortar layer, a second cement mortar layer, a third cement mortar layer and a fourth cement mortar layer which are sequentially arranged, the thickness of the first cement mortar layer, the second cement mortar layer, the third cement mortar layer and the fourth cement mortar layer is between 8 and 12 mm, an L-shaped steel wire mesh is arranged between the first cement mortar layer and the wall surface, and the bottom of the first cement mortar layer, the second cement mortar layer, the third cement mortar layer and the fourth cement mortar layer is in contact with the L-shaped steel wire mesh. A waterproof and mildew-proof layer is further arranged on the fourth cement mortar layer. The waterproof structure body is a pipeline ditch, and the siliceous cement mortar layer comprises a fifth cement mortar layer, and the thickness of the fifth cement mortar layer is 50 mm.

2. The basement waterproofing structure of claim 1, wherein The waterproof structure body is a ground, the siliceous cement mortar layer comprises a sixth cement mortar layer, the thickness of the sixth cement mortar layer is 50-100 mm, and a steel mesh is arranged in the sixth cement mortar layer.

3. The basement waterproofing structure of claim 1, wherein ​ 4. The basement waterproofing structure of claim 1, wherein ​