Construction structure for dry-wet zone transition
Patent Information
- Application Number
- CN202522424092.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-14
AI Technical Summary
[0003]现有干湿区交接处施工技术,见中国专利公开号为CN221524080U,虽然,在干湿区均有防水涂层,但是干湿区的防水涂层处于同一水平面上,容易导致干区的渗水不能排向湿区进行自流排出
[0013]本实用新型的有益效果在于:当干区部分的防水层上有水时,由于干区部分的防水层高于湿区部分的防水层,干区部分防水层上的水可通过自流到湿区部分防水层上,保证干区部分的相对干燥,湿区部分防水层上的水通过湿区排水管自流排出,解决了干湿区的防水涂层处于同一水平面上,容易导致干区的渗水不能排向湿区进行自流排出的问题。
Smart Images

Figure CN224870753U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a construction structure at the junction of dry and wet areas, belonging to the field of building construction technology. Background Technology
[0002] Buildings with wet and dry areas in their bathrooms and other water-using environments need to be waterproofed at the junction of these areas to prevent water from leaking to the floor below.
[0003] The existing construction technology for the junction of dry and wet areas is described in Chinese Patent Publication No. CN221524080U. Although there is a waterproof coating in both dry and wet areas, the waterproof coatings in the dry and wet areas are on the same horizontal plane, which can easily cause water seepage from the dry area to be unable to drain into the wet area by gravity. Summary of the Invention
[0004] To solve the above-mentioned technical problems, this utility model provides a construction structure for the junction of dry and wet areas.
[0005] This utility model is achieved through the following technical solution.
[0006] This utility model provides a construction structure for the junction of dry and wet areas, including: The floor slab has a stepped top surface, with the lower part of the top surface being the wet area and the higher part being the dry area. It also includes a waterproof layer on the top surface of the floor slab, with the waterproof layer in the wet area being lower than that in the dry area.
[0007] The floor slab at the lower end has a raised section at the top. The raised section and the floor slab top surface are stepped and have a layer of cement slurry interface agent. The cement slurry interface agent layer is continuous on the floor slab top surface and the raised section. The cement slurry interface agent layer is lower in the wet area than in the dry area.
[0008] The waterproof layer is a two-component polyurethane coating waterproofing layer formed on the cement slurry interface agent layer.
[0009] The waterproof layer in the wet area has a wet area leveling layer, and the waterproof layer in the dry area has a dry area leveling layer.
[0010] The leveling layer in the dry area is flush with the top surface of the middle part of the waterproof layer.
[0011] The top surface of the wet area leveling layer, the middle top surface of the waterproof layer, and the top surface of the wet area leveling layer are all constructed with a cement mortar bonding layer, and anti-slip floor tiles are laid on the cement mortar bonding layer.
[0012] The anti-slip tiles in the wet area are pressed down by the anti-slip tiles in the dry area.
[0013] The beneficial effects of this utility model are as follows: when there is water on the waterproof layer in the dry area, since the waterproof layer in the dry area is higher than the waterproof layer in the wet area, the water on the waterproof layer in the dry area can flow to the waterproof layer in the wet area by gravity, ensuring that the dry area is relatively dry. The water on the waterproof layer in the wet area is discharged by gravity through the wet area drain pipe, which solves the problem that the waterproof coatings in the dry and wet areas are on the same horizontal plane, which easily leads to the water seepage in the dry area not being able to flow to the wet area for gravity discharge. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram: 1-Floor slab; 11-Protrusion; 2-Neat cement slurry interface agent layer; 3-Waterproof layer; 31-Leveling layer for wet areas; 32-Leveling layer for dry areas; 4-Cement mortar bonding layer; 5-Anti-slip floor tiles; 6-Drainage pipe. Detailed Implementation
[0015] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.
[0016] like Figure 1 As shown: This application discloses a construction structure for the junction of dry and wet areas, comprising: Floor slab 1 is made of reinforced concrete and has been poured and cured. The top surface of floor slab 1 is stepped, with the lower part being the wet area and the higher part being the dry area.
[0017] The upper part of the top surface of the lower floor slab 1 is constructed of concrete to form a protrusion 11, so as to... Figure 1 For reference, the left side of protrusion 11 is the wet area, and the right side of protrusion 11 is the dry area.
[0018] The top surface of the stepped floor slab 1 and the top surface of the protrusion 11 are covered with a layer of plain cement slurry interface agent 2. The layer of plain cement slurry interface agent 2 is continuously located on the top surface of the floor slab 1 and the top surface of the protrusion 11. The layer of plain cement slurry interface agent 2 is lower in the wet area than in the dry area.
[0019] A waterproof layer 3, consisting of a two-component polyurethane coating, is manually applied to the cement slurry interface agent layer 2. The waterproof layer 3 is lower in the wet area than in the dry area.
[0020] When there is water on the waterproof layer 3 in the dry area, since the waterproof layer 3 in the dry area is higher than the waterproof layer 3 in the wet area, the water on the waterproof layer 3 in the dry area can flow by gravity to the waterproof layer 3 in the wet area, ensuring the relative dryness of the dry area. The water on the waterproof layer 3 in the wet area is discharged by gravity through the wet area drain pipe 6. This solves the problem that when the waterproof coatings in the dry and wet areas are on the same horizontal plane, water seepage in the dry area cannot be discharged to the wet area by gravity.
[0021] The waterproof layer 3 in the wet area has a wet area leveling layer 31, and the waterproof layer 3 in the dry area has a dry area leveling layer 32; no other leveling layer is constructed on the top surface of the middle part of the waterproof layer 3 between the wet area leveling layer 31 and the dry area leveling layer 32; the dry area leveling layer 32 is flush with the top surface of the middle part of the waterproof layer 3.
[0022] The top surface of the wet area leveling layer 31, the middle top surface of the waterproof layer 3, and the top surface of the wet area leveling layer 31 are constructed with a cement mortar bonding layer 4. Anti-slip floor tiles 5 are laid on the cement mortar bonding layer 4, and the anti-slip floor tiles 5 in the wet area are pressed down by the anti-slip floor tiles 5 in the dry area.
Claims
1. A construction structure for the junction of dry and wet areas, characterized in that, include: The floor slab (1) has a stepped top surface. The lower part of the top surface of the floor slab (1) is a wet area, and the higher part of the top surface of the floor slab (1) is a dry area. It also includes a waterproof layer (3) on the top surface of the floor slab (1), wherein the waterproof layer (3) is lower in the wet area than in the dry area.
2. The construction structure at the junction of dry and wet areas as described in claim 1, characterized in that: The floor slab (1) at the top of the lower part has a protrusion (11) at the top. The top surface of the stepped floor slab (1) and the top surface of the protrusion (11) have a cement slurry interface agent layer (2). The cement slurry interface agent layer (2) is continuously located on the top surface of the floor slab (1) and the top surface of the protrusion (11). The cement slurry interface agent layer (2) is lower in the wet area than in the dry area.
3. The construction structure at the junction of dry and wet areas as described in claim 1, characterized in that: The waterproof layer (3) is a two-component polyurethane coating waterproofing structure on the cement slurry interface agent layer (2).
4. The construction structure at the junction of dry and wet areas as described in claim 3, characterized in that: The waterproof layer (3) in the wet area has a wet area leveling layer (31), and the waterproof layer (3) in the dry area has a dry area leveling layer (32).
5. The construction structure at the junction of dry and wet areas as described in claim 4, characterized in that: The dry area leveling layer (32) is flush with the top surface of the middle part of the waterproof layer (3).
6. The construction structure at the junction of dry and wet areas as described in claim 4, characterized in that: The top surface of the wet area leveling layer (31), the top surface of the middle part of the waterproof layer (3) and the top surface of the wet area leveling layer (31) are constructed with cement mortar bonding layer (4), and anti-slip floor tiles (5) are laid on the cement mortar bonding layer (4).
7. The construction structure at the junction of dry and wet areas as described in claim 6, characterized in that: The anti-slip tiles (5) in the wet area are pressed down by the anti-slip tiles (5) in the dry area.
Citation Information
Patent Citations
Dry area and toilet ground handover node
CN221524080U