KR102247060B1 - Rooftop slab structure capable of draining water and degassing moisture - Google Patents

Abstract

The present invention relates to a roof slab waterproof structure having permeate drainage and water degassing functions. According to the present invention, the roof slab waterproof structure comprises: a drain cap (20) having an insertion pipe (21) inserted into a drain hole (11) formed in a roof slab (S), and a mounting wing (22) that extends in the radial direction from the insertion pipe (21) and is mounted on the slab (S) around the drain hole (11); and a waterproof layer (30) exposing a hole of the insertion pipe (21) as being constructed on the surface of the slab (S) in a state of being adhered to an upper surface of the mounting wing (22).

Description

Rooftop slab structure capable of draining water and degassing moisture}

The present invention relates to a roof slab waterproof structure, and more particularly, a roof slab having a permeated water drainage and water degassing function capable of draining the permeated water collected between the roof slab and the waterproof layer and degassing moisture evaporated from the slab concrete. It relates to a waterproof structure.

1 is a view for explaining a conventional roof slab waterproof structure, and FIG. 2 is a view for explaining that infiltrated water is collected into the waterproof layer on the drain side of FIG. 1.

In general, a cylindrical drain hole (1) through which water is drained is formed in the slab (S) on the roof of a building, and the drain hole (1) is buried in the slab (S) and is connected to a trough (not shown) outside the building. It is connected to the drain pipe (2).

A waterproof layer (3) is formed on the slab (S) so that rain or rain caused by snow does not penetrate into the surface of the slab (S), and the waterproof layer (3) is formed so that the circular entrance of the drainage hole (1) is exposed for drainage of rainwater. do. At this time, the waterproof layer 3 is adhered to the surface of the inlet-side slab (S) of the drainage hole (1) to maintain a sealed state, and the rainwater drained through the inlet of the drainage hole (1) is the slab (S) and the waterproofing layer (3). Make sure it does not penetrate through the space.

In addition, a manure cap (not shown) is installed in the drainage hole 1 to remove foreign substances transferred together with rainwater.

By the drainage hole 1 and the waterproof layer 3, rainwater flows into the drainage hole 1 along the gradient of the waterproof layer 3, and then rainwater is drained through the drainage hole 1 and the buried drainage pipe 2 So that water does not penetrate into the surface of the slab (S).

On the other hand, since the rooftop of a building is directly exposed to the external environment, many cracks are formed due to a change in temperature depending on the day and night, and by season, or by a change in dry and humid conditions. Accordingly, when rain or snow falls, the slab (S) and the waterproof layer are evaporated by water flowing through the crack formed between the outer wall (F) and the slab (S), or by the evaporation of moisture moistened by the slab by sunlight or heating. (3) The permeate water flows in between, and furthermore, the permeate water gradually flows in due to the condensation phenomenon caused by the external temperature difference. The permeated water is moved from the lower side of the waterproof layer 3 to the drain hole 1 along the slope of the slab S.

However, since the waterproof layer 3 is bonded to and sealed with the slab S on the entrance side of the drain hole 1, the permeated water moving along the gradient gradually collects toward the lower side of the waterproof layer 3 around the entrance of the drain hole 1 do. Accordingly, as shown in FIG. 2, the water permeate gradually collects in the lower side of the waterproof layer 3 on the drain hole 1 side, and the waterproof layer 3 is gradually swollen. In this case, the waterproof layer 3 is structurally in a very fragile state, and the waterproof layer 3 is damaged by an externally applied impact or permeate pressure, or by a hardening phenomenon of the waterproof layer 3, and thus the roof slab ( The waterproof function of S) has been lost.

In addition, when a defect occurs in the waterproof layer 3 after the waterproof layer 3 is completed, rain or snow caused by rain or snow flows through the waterproof layer 3, and thereafter, along the roof slab S, around the drainage hole 1 Flow and gather.

Such rainwater or infiltrating water proceeds to neutralize the surface of the slab (S) around the drainage hole (1) to make it crumbly, and furthermore, when it penetrates through the surrounding cracks, it promotes neutralization inside the slab (S) to build a building structure. It was the cause of.

In addition, when the slab (S) concrete is excessively wet during building construction, the waterproof layer (3) swells as the remaining moisture in the slab concrete is evaporated, resulting in a structurally very vulnerable state. The waterproof layer 3 was easily damaged by pressure.

In addition, when the waterproofing material is applied for the construction of the waterproofing layer (3), the thickly applied waterproofing material flows into the drainage hole (1) and the buried drainage pipe (2) and becomes hardened, so that the inner diameter of the drainage hole (1) and the buried drainage pipe (2) is narrow. Became.

The present invention was created to solve the above problems, and by draining the permeated water collected between the slab and the waterproofing layer around the drainage hole, and degassing the residual moisture evaporated from the slab concrete, defects occur in the slab and the waterproofing layer. It is an object of the present invention to provide a rooftop slab waterproof structure having a function of draining water and degassing water that can be prevented from occurring.

In order to achieve the above object, the roof slab waterproof structure having permeate water drainage and moisture degassing functions according to the present invention includes an insertion pipe 21 inserted into the drain hole 11 formed in the roof slab S, and the A drain cap 20 having a mounting blade 22 extending in the radial direction from the insertion pipe 21 and mounted on the slab S around the drain hole 11; A waterproof layer 30 that is applied to the surface of the slab S while being adhered to the upper surface of the mounting wing 22, exposing the hole of the insertion tube 21; And a drainage extension pipe 40 that is inserted into the insertion pipe 21 and extends to the inside of the inlet drainage pipe 12' connected to the inside of the drain hole 11 from the buried drainage pipe 12 for draining permeate water and rainwater. ); includes; The drain cap 20 includes a plurality of first protrusions 23 formed on the outer circumferential surface of the insertion tube 21 to separate the outer circumferential surface of the insertion tube 21 from the inner circumferential surface of the drain hole 11 It is characterized by that.
In the present invention, the drain cap 20 is formed on the lower surface of the mounting blade 22 to separate the lower surface of the mounting blade 22 from the surface of the slab (S) a plurality of second protrusions It further includes (24).

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In the present invention, the drain cap 20 includes a lower stepped portion 25 formed on the inner circumferential surface of the insertion tube 21 to guide the position of the drainage extension tube 40 that is inserted into the insertion tube 21 Include more.

In the present invention, the drain cap 20, as protruding from the center inner circumferential surface of the insertion pipe 21 to the upper end, further includes an upper stepped 26 to which the end of the waterproof layer 30 is in close contact.

According to the present invention, a drain cap 20 composed of an insertion pipe 21 inserted into the drain hole 11 and a mounting blade 22 mounted on the slab S around the drain hole 11, and a mounting blade 22 ) By including the waterproof layer 30 applied to the surface of the slab (S) in a state of being adhered to the upper surface of the slab (S), the penetration water flowing into the space formed between the surface of the slab (S) and the waterproof layer 30 is provided with a mounting blade (22). ) And the slab (S) formed between the second passage (L2) and the insertion pipe (21) and the drain hole (11) through the first passage (L1) formed, and accordingly, from the drain hole (11) side It is possible to prevent the waterproof layer 30 from being swollen and structurally weak, and to prevent the occurrence of defects due to neutralization in the slab (S) on the side of the drain hole (11).

In addition, when the slab (S) concrete is excessively wet during building construction, even if the residual moisture evaporates, the steam is discharged (degassed) through the second flow path (L2) and the first flow path (L1). It is possible to prevent the waterproof layer 30 from being swollen.

And when the waterproofing material is applied for the construction of the waterproofing layer 30, even if the waterproofing material is thickly applied, the waterproofing material does not flow into the insertion tube 21 by the upper stepped 26, so that the waterproofing material is drained from the drainage extension pipe 40 or the buried drainage pipe ( It has an effect that it can prevent the inner diameter from narrowing by flowing into 12) and being hardened.

1 is a view for explaining a conventional roof slab waterproof structure,
FIG. 2 is a view for explaining that infiltrated water is collected into the waterproof layer on the drain side of FIG. 1;
3 is a view for explaining the roof slab waterproof structure having a permeate drainage and water degassing function according to the present invention,
4 is a view showing an extract of the drainage cap, the waterproof layer and the drainage extension pipe of FIG. 3;
Figure 5 is a perspective view of the drain cap of Figure 4 viewed from the top,
6 is a perspective view of the drain cap of FIG. 5 viewed from the bottom;
7 is a cross-sectional view taken along line VII-VII' of FIG. 6;

Hereinafter, a roof slab waterproof structure having a permeated water drainage and water degassing function according to the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, what is described as "top" or "top" may include not only those directly above by contact, but also those that are above non-contact. Terms such as first and second may be used to describe various elements, but the elements should not be limited by terms. The terms are used only for the purpose of distinguishing one component from other components. Singular expressions include plural expressions unless the context clearly indicates otherwise. In addition, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless specifically stated to the contrary. In addition, terms such as "... unit" and "module" described in the specification mean a unit that processes at least one function or operation. When a certain embodiment can be implemented differently, a specific process order may be performed differently from the described order. For example, two processes described in succession may be performed substantially simultaneously, or may be performed in an order opposite to the described order.

3 is a view for explaining a roof slab waterproof structure having a function of draining water and degassing water according to the present invention, and FIG. 4 is a view showing an excerpt of the drain cap, the waterproof layer, and the drainage extension pipe of FIG. 3. In addition, FIG. 5 is a perspective view of the drain cap of FIG. 4 viewed from the top, FIG. 6 is a perspective view of the drain cap of FIG. 5 viewed from the bottom, and FIG. 7 is a cross-sectional view taken along line VII-VII' of FIG.

The roof slab (S) has a cylindrical drain hole (11) through which water is drained, and the drain hole (11) is buried in the slab (S) and is connected to a trough (not shown) outside the building. And an inlet drainage pipe 12' extending to the inside of the drainage hole 11 is extended to the buried drainage pipe 12.

As shown, the roof slab waterproof structure having the function of draining water and degassing water according to the present invention includes an insertion pipe 21 inserted into the drain hole 11 formed in the roof slab S, and the insertion pipe 21 A drain cap (20) having a mounting blade (22) extending in a radial direction from the drain hole (11) and mounted on the slab (S) around the drain hole (11); A waterproof layer 30 that exposes the hole of the insertion tube 21 as being applied to the surface of the slab (S) while being adhered to the upper surface of the mounting blade (22); A drainage extension pipe 40 that is inserted into the insertion pipe 21 and extends to the inside of the inlet drainage pipe 12' connected to the inside of the drain hole 11 from the buried drainage pipe 12 for draining the infiltrate and rainwater to the outside of the building. )and; Characterized in that it includes; a manure cap (not shown) for removing foreign matter transferred along with rainwater as being inserted into the inlet of the drain cap 20.

As described above, many cracks are formed in the roof slab (S) that is directly exposed to the external environment by day and night, seasonal changes, and expansion and contraction, and flows through the cracks formed between the outer wall (F) and the slab (S). Permeated water is introduced or formed between the slab (S) and the waterproof layer 30 due to evaporation of moisture that is moistened on the slab by moisture, sunlight, or heating, or by condensation. This infiltrating water is drained through the drain hole 11, and the drain cap 20 for enabling this will be described as follows.

The drain cap 20, as shown in FIGS. 4 and 6, is formed on the outer circumferential surface of the insertion pipe 21 to separate the outer circumferential surface of the insertion pipe 21 from the inner circumferential surface of the drain hole 11 It includes (23). The first protrusion 23 is formed symmetrically in three directions on the outer circumferential surface of the insertion tube 21, and accordingly, when the insertion tube 21 is inserted into the drain hole 11, all the outer circumferential surfaces of the insertion tube 21 are drained. It is separated from the inner circumferential surface of the hole 11, and accordingly, a first flow path L1 through which water can flow is formed between the insertion pipe 21 and the drain hole 21.

The drain cap 20, as shown in FIGS. 4 and 7, is formed on the lower surface of the mounting blade 22 to separate the lower surface of the mounting blade 22 from the surface of the slab (S). Includes two projections (24). The second protrusion 24 separates the lower surface of the mounting blade 22 from the surface of the slab S around the drain hole 11, and accordingly, water is separated between the mounting blade 22 and the slab S. A second flow path L2 that can flow is formed.

The drain cap 20, as shown in FIGS. 4 and 7, is formed on the inner circumferential surface of the insertion tube 21, and the end of the drainage extension tube 40, which will be described later, which is inserted into the insertion tube 21 is in close contact with the lower step It includes (25).

The drain cap 20, as shown in FIGS. 4 and 7, protrudes upward from the central inner circumferential surface of the insertion tube 21, and includes an upper stepped 26 to which the end of the waterproof layer 30 is in close contact. . The upper stepped 26 is circular, and when the end of the waterproof layer 30 is adhered to the mounting blade 22, the end of the waterproof layer 30 is in close contact with the outer circumferential surface of the upper stepped 26 so that it does not protrude upward. At the same time, it allows for a smooth finish. Accordingly, when a person entering and leaving the roof slab (S) passes the upper side of the drain cap 20, the waterproof layer 30 is protected by the upper stepped portion 26. Therefore, it is not separated from the drain cap 20.

In addition, when the waterproofing material is applied for the construction of the waterproofing layer 30, even if the waterproofing material is thickly applied, the waterproofing material does not flow into the insertion pipe 21 by the upper stepped 26, so that the waterproofing material can be applied to the drainage extension pipe 40 or the buried drainage pipe ( It can prevent the inner diameter from narrowing by flowing into 12) and being hardened.

Due to the structure of the drain cap 20, when the drain cap 20 is inserted into the drain hole 11, the second channel L2 formed between the mounting blade 22 and the slab S, and the insertion tube A first passage L1 formed between the 21 and the drain hole 11 is formed, and the first passage L1 and the second passage L2 are interconnected.

The waterproof layer 30 is composed of a sheet waterproof layer 31 covered on the surface of the slab S, and a urethane waterproof layer 32 applied on the surface of the sheet waterproof layer 31, as shown in FIG. 4. This waterproof layer 30 is adhered to the surface of the mounting blade 22 of the drain cap 20 while covering the surface of the slab (S), and forms a space through which the permeated water flows between the surfaces of the slab (S).

As shown in FIG. 4, the drainage extension pipe 40 is interposed and fixed to the inner circumferential surface of the insertion pipe 21 to which the adhesive is applied. At this time, the drainage extension pipe 40 is in close contact with the lower stepped portion 25 formed on the inner circumferential surface of the insertion pipe 21 to prevent the infiltrate from escaping through the boundary between the lower stepped portion 25 and the drainage extension pipe 40.

The drainage extension pipe 40 extends to the inside of the inlet drainage pipe 12' in the state inserted into the insertion pipe 21, and exposes the concrete in the drainage hole 11 between the insertion pipe 21 and the inlet drainage pipe 12'. Prevent. This drainage extension pipe 40 allows rainwater to flow directly into the inlet drainage pipe 12' when rainwater or snowfall is drained into the drainage hole 11 after moving along the gradient of the waterproof layer 30, and thus Accordingly, it is possible to prevent the concrete of the inner circumferential surface of the drainage hole 11 from being in direct contact with rainwater, thereby preventing it from being neutralized by water.

As described above, according to the present invention, even if water is generated between the slab (S) and the waterproof layer 30 due to cracks or condensation formed by a change in temperature according to the day and night, or by a change in temperature or moisture and humidity. , The infiltrating water moves toward the drainage hole 11 along the slope formed in the slab (S), and thereafter, the second flow path (L2) formed between the mounting blade (22) and the slab (S), and the insertion pipe (21) ) And drained through the first flow path L1 formed between the drain hole 11 and then drained to the buried drainage pipe 12 through the drainage extension pipe 40. And rain or snow due to rain is moved to the drainage hole 11 side along the gradient of the waterproof layer 30, and then drained to the buried drainage pipe 12 through the insertion pipe 21 and the drainage extension pipe 40.

As described above, according to the present invention, a drain cap 20 composed of an insertion pipe 21 inserted into the drain hole 11 and a mounting blade 22 mounted on the slab S around the drain hole 11, and By including the waterproof layer 30 applied to the surface of the slab (S) in a state bonded to the upper surface of the blade (22), the penetration water formed between the surface of the slab (S) and the waterproof layer (30) is a mounting blade (22) It is drained through the second flow path L2 between the and the slab S and the first flow path L1 between the insertion pipe 21 and the drain hole 11. Accordingly, it is possible to prevent the waterproof layer 30 from being swelled and structurally weakened at the drain hole 11 side, and prevent the occurrence of defects due to neutralization in the slab S at the drain hole 11 side.

In addition, when the slab (S) concrete is excessively wet during the building construction, even if the residual moisture evaporates, the steam flows through the second flow path (L2) and the insertion pipe (21) between the stationary blade (22) and the slab (S). Since it is degassed (discharged) through the first flow path L1 between the drain holes 11, it is possible to prevent the waterproof layer 30 from being swelled by steam.

And when the waterproofing material is applied for the construction of the waterproofing layer 30, even if the waterproofing material is thickly applied, the waterproofing material does not flow into the insertion pipe 21 by the upper stepped 26, so that the waterproofing material is drained from the drainage extension pipe 40 or the buried drainage pipe ( It can prevent the inner diameter from narrowing by flowing into 12) and being hardened.

Although the present invention has been described with reference to an embodiment shown in the drawings, this is only exemplary, and those of ordinary skill in the art will understand that various modifications and other equivalent embodiments are possible therefrom.

S ... slab 11 ... drain hole
12 ... Landfill drainage pipe 12' ... Inlet drainage pipe
20 ... drain cap 21 ... insertion tube
22 ... Mounting wing 23 ... 1st protrusion
24 ... 2nd protrusion 25 ... lower step
26 ... upper step 30 ... waterproof layer
31 ... sheet waterproof layer 32 ... urethane waterproof layer
40 ... drainage extension pipe

Claims (6)

An insertion pipe 21 inserted into the drainage hole 11 formed in the roof slab S, and a mounting blade extending in the radial direction from the insertion tube 21 and mounted on the slab S around the drainage hole 11 ( A drain cap 20 having 22);
A waterproof layer 30 that is applied to the surface of the slab S while being adhered to the upper surface of the mounting wing 22, exposing the hole of the insertion tube 21; And
A drainage extension pipe 40 that is inserted into the insertion pipe 21 and extends to the inside of the inlet drainage pipe 12' connected to the inside of the drain hole 11 from the buried drainage pipe 12 for draining the permeate water and rainwater. Includes;
The drain cap 20 includes a plurality of first protrusions 23 formed on the outer circumferential surface of the insertion tube 21 to separate the outer circumferential surface of the insertion tube 21 from the inner circumferential surface of the drain hole 11 A roof slab waterproof structure having a function of draining permeate and degassing water. delete delete The method of claim 1, wherein the drain cap (20),
Penetration characterized in that it further comprises a plurality of second protrusions 24 formed on the lower surface of the mounting blade 22 to separate the lower surface of the mounting blade 22 from the surface of the slab (S) Roof slab waterproof structure with water drainage and water degassing function. The method of claim 1, wherein the drain cap (20),
It is formed on the inner circumferential surface of the insertion pipe (21), characterized in that it further comprises a lower step (25) for guiding the position of the drainage extension pipe (40) inserted into the insertion pipe (21), infiltrate drainage and moisture Roof slab waterproof structure with degassing function. The method of claim 1, wherein the drain cap (20),
As protruding from the center inner circumferential surface of the insertion pipe 21 to the upper end, characterized in that it further comprises an upper stepped 26 to which the end of the waterproof layer 30 is in close contact, the roof having a function of draining water and degassing water Slab waterproof structure.

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