KR100650374B1 - Mortar filling method and structure of asphalt-sheet - Google Patents

Abstract

A waterproofing structure of an exposed asphalt sheet and a waterproofing method are provided to prevent the separation of sheets and to extend the service life of sheets by discharging moisture and air from the inside of exposed sheet to the outside effectively, and to form a waterproof layer stably by installing exposed sheets with impregnated silica sands on an asphalt sheet at regular intervals and applying coating materials between an exposed sheet and a parapet. A waterproofing method of an exposed asphalt sheet comprises the steps of: installing a ventilation apparatus such as a ventilation plate(90) and an air vent(80) on the surface of a rooftop slab(10) to make ventilation possible and to remove moisture; installing exposed sheets(50), which are manufactured by impregnating silica sands(40) on the surface of an asphalt sheet(30), on the surface of the slab with the ventilation apparatus at regular intervals; forming a primer layer(20) by applying liquefied primer between the exposed sheets or the corners of the exposed sheets using a roller or a brush, fusion-welding the neighboring ends of exposed asphalt sheets on a part where the exposed sheet is not impregnated with silica sands using torch; laying and reinforcing woven fabrics on the upper part of the fused part of the exposed sheet; forming a coated film(110) by applying coating materials on the upper part of the fused part with the woven fabrics reinforced; forming a silica sand layer by spraying silica sands on the upper part of the fused part with the woven fabrics reinforced and the coating materials applied; forming a coated film layer(60) by applying coating materials composed of urethane resins on the upper part of the silica sand layer and the part of a parapet adjacent to the upper part; and forming a coating layer(70) by applying coating materials on the upper part of the coated film layer.

Description

Mortar filling method and structure of asphalt-sheet

1 is a cross-sectional view showing a waterproof structure of a conventional rooftop slab.

Figure 2 is a construction flow diagram of the exposed sheet waterproofing method according to the present invention.

3 to 11 are cross-sectional views showing the exposed sheet waterproofing method according to the construction sequence according to the present invention.

12 is a cross-sectional plan view and a partially enlarged perspective view showing a state in which the exposed sheet and the ventilation plate of the exposed sheet waterproof structure according to the present invention.

13 is a cross-sectional view showing a cross-sectional structure in the same direction as BB 'in FIG.

14 and 15 are cross-sectional views showing an embodiment in which the exposed sheet waterproofing method is applied to the edge of the rooftop slab.

Figure 16a is a perspective view of the vent plate of the exposed sheet waterproof structure according to the present invention.

Figure 16b is a perspective view of one embodiment of a vent plate of the exposed sheet waterproof structure according to the present invention.

17 is a perspective view of the base of the exposed sheet waterproof structure according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: Concrete slab bottom surface 2: Bond and adhesive layer

3: ventilation cushion sheet layer 4: joint tape layer

5: fixed hardware 6: stainless air vent

7: Two-component first and second urethane layers 8: Urethane top coat layer

10: slab 20: primer layer

30: asphalt sheet 32: melting part

40: silica sand

50: exposed sheet 60: coating layer

70: top coating agent 80: debase

82: fixing plate 84: through hole

86: discharge pipe 86a: discharge pipe

86b: other end of discharge pipe

90: vent plate 92: vent

100: woven fabric 110: coating material

120: parapet

 The present invention relates to a lamination method for preventing leakage of a rooftop slab of a building, and more particularly, when the exposed sheet is laid at regular intervals when waterproofing the rooftop slab of a flattened building, the joint part is welded. The present invention relates to a waterproof structure and a method for exposing an exposed sheet for removing moisture from a base surface by increasing a responsiveness to cracks of a base surface by an insulation method and installing a ventilation device.

As the shape of the building is diversified into various forms, the shape of the roof is also diversified. Accordingly, various types of waterproof construction methods are used to prevent leakage of the slabs. Among the various waterproof construction methods, the most commonly used method is a method of waterproofing the roof slabs using asphalt sheets.

Asphalt sheets are impregnated or coated with straight asphalt and APP (Atactic Polyproplylene) or SBS (Styrene Butadiene Styrene) on core materials such as nonwoven fabric, stretched film and unstretched film.

When waterproof construction using the asphalt sheet as described above, there is an advantage that the waterproof layer can be formed by a simple method of construction because it uses an asphalt sheet produced in a certain standard.

However, because asphalt is impermeable, it is not able to remove 7% to 10% of the moisture generated on the surface of the slab, and this moisture causes the phenomenon of lifting due to the temperature rise, and as time passes, the slab and the waterproofing layer are excited. There is a problem that the life of the waterproof layer is shortened.

Accordingly, in order to solve the above problems, an asphalt sheet waterproofing method is provided, which is equipped with a stripping base that can remove moisture generated on the surface of the slab.

As a conventional technique of the waterproofing method of the asphalt sheet mounting base as described above, the roof roof waterproof structure using the roof exposure type insulation ventilation buffer sheet and air vent of the Korean Patent Application No. 10-2003-0089267 and roof waterproofing method using the same "There is.

As shown in FIG. 1, the technique shown in the Republic of Korea Patent Application No. 10-2003-0089267 is a bond and adhesive layer (2) from the concrete slab bottom surface (1), insulating ventilation sheet layer (3), joints The tape layer 4, the fixing iron 5, the stainless air vent 6, the two-component first and second urethane layers 7, and the urethane top coat layer 8 are laminated in this order.

In more detail with respect to the prior art

Local application of bonds and glue to the concrete slab bottom (1),

Continuously install a plurality of ventilation buffer sheet (3) provided with irregularities at the bottom by the applied bond and adhesive,

After reinforcing the installed insulating ventilation buffer sheet layer (3) with butyl rubber tape, and fixing the end of the plurality of ventilation buffer sheet (3) to the concrete slab bottom surface (1) by fixing hardware,

A stainless air vent 6 is installed to communicate with the vent (the space between the central vent and the peripheral protrusion) of the vent buffer sheet layer 3, and the two-component polyurethane 7 is provided on the upper surface of the vent buffer sheet 3. And applying the urethane topcoat 8.

However, in the conventional method as described above, in order to install the stainless air vent 6, the insulating ventilation buffer sheet layer 3 is cut and installed by a predetermined length to fit the lower diameter of the stainless air vent 6, so that the installation method is There are complex and difficult problems.

In addition, when the two-component polyurethane (7) and the urethane top coat (8) is installed in contact with the edge of the rooftop, between the two-component polyurethane (7) and the urethane topcoat (8) and the edge of the rooftop If a minute gap occurs in the air and moisture in the minute gap, the two-component polyurethane (7) and the urethane top coat (8) is excited by the moisture and air penetrated there is a problem that the perfect waterproof treatment is impossible. .

The present invention has been made to solve the above problems,

First, in order to effectively remove the moisture generated on the surface of the slab, it is an object to install a ventilation device of a simple and solid structure on the surface of the slab.

Second, after laying the exposed sheet impregnated with silica sand in the asphalt sheet at regular intervals, the joint is welded to strengthen the bond between the sheets, the purpose is to form a stable waterproof layer.

Third, the asphalt sheet is spaced between the corner portions adjacent to the parapet, and the coating material is applied to the spaced space, the coating material serves as a filler, the coating material provides a stretch space to shrink or expand well It is an object to be able to form a waterproof layer that can withstand.

Exposed sheet waterproofing method according to the present invention for achieving the above object

A ventilator installation step of installing a ventilator on the surface of the slab;

An exposed sheet laying step of laying a plurality of exposed sheets including silica sand on the surface of the slab on which the ventilation device is installed at regular intervals;

A primer coating step of applying a primer between each of the exposed sheet laid at regular intervals;

An exposed sheet welding step of forming a melted part by welding between the exposed sheets coated with the primers;

Fabric reinforcing step of laying a woven fabric for reinforcement on top of the melt portion;

A coating layer forming step of applying a coating material on the upper portion of the woven fabric;

A silica sand layer forming step of forming a silica sand layer integrally connected with the silica sand of the exposed sheet by spraying silica sand on the coated coating part;

A coating layer forming step of forming a coating layer by applying a coating layer on the silica sand layer; And

Characterized in that it consists of a coating agent coating step of applying a top coating agent on the top of the coating layer.

And the exposed sheet waterproof structure

A ventilator installed on the surface of the slab;

A plurality of exposed sheets, which are laid at regular intervals on the surface of the slab on which the ventilation device is installed, including silica on the upper side;

A primer layer formed by coating between the exposed sheets;

A melting part connected by welding between the exposed sheets laid at intervals;

Woven fabricated to reinforce the upper portion of the melt portion;

A coating layer coated on the upper portion of the woven fabric;

A silica sand layer integrally connected to the silica sand of the exposed sheet by spraying silica sand on the coated coating material;

A coating layer formed by coating a coating material on the silica sand layer; And

It is characterized by including a top coating layer applied to the upper portion of the coating film layer.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of the present invention.

Asphalt sheet lamination method of the present invention is basically a ventilation installation step (S10), exposed sheet laying step (S20), primer coating step (S30), exposed sheet welding step (S40), woven fabric reinforcement step (S50) The coating layer forming step (S60), the silica sand layer forming step (S70), the coating layer forming step (S80) and the coating agent coating step (S90).

As shown in Figure 3, the ventilation device installation step (S10) is a step of installing the ventilating plate 90 and the desorption base 80 so that the moisture can be removed by the ventilation on the surface of the rooftop slab 10 to be.

As shown in FIG. 16A, the ventilation plate 90 is formed of a metal plate having a predetermined size, and a vent part 92 protruding in the longitudinal direction of the metal plate is formed in the center portion.

Here, the vent 92 may be formed in plural numbers on the metal plate to enable more efficient ventilation.

Therefore, air and moisture are moved by the space formed by the inside of the vent 92 by the vent portion 92 protruding in the longitudinal direction.

The metal plate is preferably made of a stainless material that is not corroded, as shown in Figure 16b as an embodiment of the vent plate 90, the vent plate 90 is a flat metal plate without a vent formed It may be done. Even when the vent plate 90 is made of only a flat metal plate without forming vents, a gap exists between the surface of the slab 10 and the exposed sheet 50 by the vent plate 90 provided on the surface of the slab. Therefore, air and moisture are movable through the space formed by the gap.

And, as shown in FIG. 12, the ventilation plate 90 is installed on the surface of the slab at the lower portion of the molten portion 32 between the exposed sheet 50 to be described later in plan view, Due to the space formed by the vent part 92 of the ventilation plate 90, it is made of a structure that can move the moisture and air in the lower portion between each exposed sheet (50).

And, as shown in Figure 17, the debase 80 is a fixing plate 82 is formed with a through hole 84 in the center, one end 86a is connected to the through hole 84 of the fixing plate 82, The other end 86b is bent to one side and the other end is composed of a discharge pipe 86 facing downward.

Therefore, the air and moisture in the lower portion of the fixing plate 82 is made of a structure that can be discharged to the other end (86b) of the discharge pipe (86) through the through hole (84).

Air and moisture between the slab and the primer is moved by the vent plate 90 by the vent plate 90 and the debase 80 configured as described above, and the moved moisture and air is discharged from the debase 80. It is possible to discharge to the outside through 86, the moisture and air between the slab and the primer can be easily removed.

As shown in Figure 4, the step of laying the exposed sheet (S20) is a step of laying a plurality of exposed sheets including silica sand on the surface of the slab on which the ventilation device is installed at regular intervals, the entire exposed sheet on the rooftop. A schematic view of laying out is shown in FIG. 12.

The exposed sheet 50 is produced in a predetermined standard by impregnating the silica sand 40 on the surface of the asphalt sheet 30, and completely impregnated SBS improved asphalt using a polyester long fiber nonwoven fabric as a center reinforcement, the surface Is produced in the form of a roll of a certain thickness finished with silica sand (colored yarn) for UV protection and beautiful appearance.

At this time, the surface of the end portions of the exposed sheet 50 adjacent to each other in the plurality of the exposed sheet 50 laid at a predetermined interval is produced in the state without the silica layer about 3 to 5 cm each.

This is to remove the silica sand at the end of the exposed sheet 50 to be fused in order to facilitate thermal bonding with the exposed sheet 50 adjacent to each other when laying the exposed sheet 50.

Looking at the structure in which the ventilation plate 90 is installed in the exposed sheet 50 in the exposed sheet laying step (S20) in more detail, as shown in Figure 13 which is a cross-sectional view taken in the BB 'direction of FIG. The ventilation plate 90 is placed between each of the exposed sheets 50 arranged to the left and right, thereby exposing the exposed sheets 50 by the melting part 32 and the coating material formed between the exposed sheets 50. It is possible to move the moisture and air between the exposed sheet 50 by the ventilation portion 92 of the ventilation plate 90 by improving the difficult difficulty of mutual ventilation. That is, the ventilation portion 92 direction of the ventilation plate 90 disposed between the exposed sheet 50 is connected between the exposed sheet 50 and the exposed sheet 50 so as to distribute the air and moisture It will be obvious that the direction is made to vent.

On the contrary, FIGS. 3 to 11 show cross-sectional views cut in the same direction as AA ′ of FIG. 14.

Also, as shown in FIG. 14, the asphalt sheet 40 is installed at a predetermined distance from the parapet 120 as shown in FIG. 14, but the spacing is preferably about 1 to 5 centimeters in view of waterproof efficiency. . This is to allow the coating material of the upper layer to penetrate between the parapet 120 and the asphalt sheet 40, thereby eliminating the minute space between the parapet 120 and the asphalt sheet 40 for a perfect waterproof treatment, the parapet By providing a stretch space by the coating material penetrated between the 120 and the asphalt sheet 40, it is possible to form a waterproof layer that can withstand shrinkage or expansion well.

As shown in Figure 5, the primer applying step (S30) is applied to the primer layer 20 by applying a liquid primer to the corners and corner portions of the exposed sheet 50 laid at regular intervals with a roller or a brush. Forming.

The primer is preferably made of an asphalt-based liquid, and serves to improve the adhesiveness with the slab 10 when welding the exposed sheet 50 to be described later and improve water resistance.

As shown in Figure 6, the exposed sheet welding step (S40) torch (torch) the ends adjacent to each other in the portion where the silica sand 40 of the exposed sheet 50 laid at regular intervals is not impregnated. This is the step of fusion welding using.

As a result, ends of each of the exposed sheet 50 that are adjacent to each other are melted by heat to form a melted portion 32 in which a molten portion of the adjacent exposed sheet 50 is joined. By 32, the adjacent exposed sheets 50 are firmly bonded to each other. In addition, the melter 32 serves to further enhance the waterproofing effect by being more firmly coupled to the primer layer 20.

In addition, the end of the exposed sheet 50, which is spaced apart from the parapet and placed on the corner of the roof, is also bonded using a torch.

As shown in Figure 7, the woven fabric reinforcing step (S50) is a step of reinforcing by laying a woven fabric on top of the melting portion 32 of the exposed sheet 50, in the exposed sheet welding step (S40) The formed melted part 32 is for reinforcing the other parts, that is, because it is relatively softened in comparison with the part in which the silica sand 40 is impregnated in the exposed sheet 50.

The woven fabric has a form in which warp yarns and weft yarns are woven in a cross shape from each other up and down, and when the coating material described later is applied to the melted portion 32, the melted portion 32 By acting as a reinforcement shaft inserted between and the coating material, it is to have the same strength as the exposed sheet (50).

As shown in FIG. 8, the forming of the coating part (S60) is a step of forming a coating part 110 by applying a coating material to an upper part of the melting part 32 on which a woven fabric is placed. By the 110, the molten portion 32 is equal to the height of the asphalt sheet 30 so that a flat waterproof layer can be formed without bending.

The material of the coating layer 110 may be provided with a urethane resin, which is a material used in the coating layer forming step (S70), which will be described later, in terms of convenience and waterproofness, but other materials may be used if the material has waterproof properties such as the urethane resin. You may use it.

Here, the urethane resin is one of artificial rubbers, which does not dissolve in oil, has low wear and excellent elasticity, and is applied to the upper part of the molten part 32 of the exposed sheet 50 on which the woven fabric is laid. It can be easily bonded.

In addition, it can penetrate deeply into the upper portion of the molten portion 32 formed between the exposed sheet 50, it is flexible and does not form a seam between the exposed sheet 50 can form a waterproof layer more completely.

As shown in FIG. 15, in the coating film forming step (S60), the coating material is also applied to the rooftop corners in which the exposed sheet is laid at regular intervals from the parapet 120 and the molten part is formed. Silver is preferably 1 to 5 centimeters. The reason why the coating material is applied at intervals with the parapet 120 is to allow the coating material to penetrate the gap between the parapet 120 and the asphalt sheet 40, and thus, between the parapet 120 and the asphalt sheet 40. It is to fill a fine space for a perfect waterproof treatment, and to provide a stretch space by the coating material penetrated between the parapet 120 and the asphalt sheet 40 to form a waterproof layer that can withstand shrinkage or expansion well. It is to make it possible.

As described above, the upper portion of the molten portion 32, ie, the coating portion 110, on which the woven fabric is laid and the coating material is coated, as shown in FIG. 9, does not have a silica sand layer at the top, unlike the exposed sheet 50. , The silica sand layer forming step (S70) is passed.

The silica sand layer forming step (S70) is a step of spraying the silica sand on the upper portion of the melted portion 32, the woven fabric is laid and the coating material is applied, by spraying the same as the height of the silica sand on the upper side of the exposed sheet 50 The upper part of the molten part 32 to which the exposed sheet 50 and the woven fabric are laid, and the coating layer 110 is coated, forms a silica layer and a single silica layer on the upper side of the exposed sheet 50.

However, the silica sand layer excludes silica sand by a predetermined length in order to apply a coating material to the wall surface of the parapet, which will be described later, at an edge portion adjacent to the parapet.

The silica sand layer increases the walkability of the person and at the same time protects the asphalt sheet 40 from the direct sunlight of the sun, and can be variously colored, which can also serve as a visual effect.

As shown in FIG. 10, the coating layer forming step (S80) may be performed by applying a coating material made of urethane resin to a portion of the parapet 120 adjacent to the upper and upper portions of the silica sand layer to form the coating layer 60. It is a process.

In the coating layer forming step

The coating material applied on the silica sand layer is extended to the wall surface of the parapet 120 to form the coating layer 110 and the coating layer 60 integrally, thereby forming the coating material up to the wall surface of the parapet 120. It can be applied to obtain more perfect waterproof effect.

As shown in Figure 11, the coating step (S90) is a process of forming a coating layer 70 by applying a coating on top of the coating layer (60).

In addition, the top coating agent is applied to extend to the wall surface of the parapet 120.

Accordingly, not only the wall surface of the parapet but also the top coating layer coated on the top of the coating layer prevents dust from occurring when a person walks and prevents silica sand from falling off from the lower coating layer 60.

The configuration of the invention described so far described the present invention mainly on the rooftop slab, but the present invention is not limited to the rooftop slab but is a construction method that can be applied to various building structures such as toilets, basements, and tanks.

According to the present invention configured as described above,

First, by installing a ventilator of simple and solid structure on the surface of the slab, it is possible to discharge moisture and air existing inside the exposed sheet to the outside to prevent the sheet from lifting and extend the life of the sheet. It has an effect.

Secondly, the exposed sheet is installed at intervals of about 1 to 5 centimeters between the parapet and the rooftop corner portion, and a coating material is applied between the exposed sheet and the parapet, thereby providing a fine connection between the exposed sheet and the parapet. Eliminate gaps and achieve perfect waterproofing.

In addition, by providing a stretch space by the coating material coated between the parapet and the exposed sheet, there is an effect that can form a waterproof layer that can withstand shrinkage or expansion well.

Third, the exposed sheet is laid at regular intervals between the exposed sheets, the primer is applied to the slab surface between the exposed sheets and then melted to form a melted portion, thereby forming a melted portion adjacent to the melted sheet. They are firmly bonded to each other, and firmly bonded to the bottom surface to which the primer is applied, thereby increasing the waterproof effect.

Claims (6)

delete In the exposed sheet waterproof method, A ventilator installation step of installing a ventilator on the surface of the slab; An exposed sheet laying step of laying a plurality of exposed sheets including silica sand on the surface of the slab on which the ventilation device is installed at regular intervals; A primer coating step of applying a primer between the exposed sheet laid at regular intervals; An exposed sheet welding step of fusion and adhesion between the exposed sheet coated with the primer to form a melt portion; Fabric reinforcing step of laying a woven fabric to reinforce the melted portion; A coating layer forming step of applying a coating material on the upper portion of the woven fabric; A silica sand layer forming step of forming a silica sand layer integrally connected with the silica sand of the exposed sheet by spraying silica sand on the coating layer; A coating layer forming step of forming a coating layer by applying a coating layer on the silica sand layer; And It is made of a coating agent coating step of applying a top coating agent on the top of the coating layer, The ventilation device installation step A small step of laying a ventilation plate on the surface of the slab at a position corresponding to the space between the exposed sheets laid at regular intervals, and removing the air and moisture from the surface of the slab on the surface of the slab The exposed sheet waterproofing method further comprises a small step of installing the base. The method of claim 2, In the coating film forming step The exposed sheet is installed at a predetermined interval with the parapet, the exposed sheet waterproof method characterized in that it further comprises a small step of filling the coating material in the space formed by the interval. The method of claim 2, In the coating layer forming step The method of claim 1, further comprising a small step of applying the coating material applied on the silica sand layer extending to the wall surface of the parapet. delete In the exposed sheet waterproof structure of the asphalt sheet, A ventilator installed on the surface of the slab; A plurality of exposed sheets, which are laid at regular intervals on the surface of the slab on which the ventilation device is installed, including silica on the upper side; A primer layer formed by applying a primer between each exposed sheet; A melting part connected by fusion bonding between the exposed sheet and the exposed sheet laid at regular intervals; Woven fabricated to reinforce the upper portion of the melt portion; A coating material applied to the upper portion of the woven fabric; A silica sand layer integrally connected to the silica sand of the exposed sheet by spraying silica sand on the coated coating material; A coating layer formed by coating a coating material on the silica sand layer; And It comprises a top coating agent applied to the upper portion of the coating layer, The ventilator Installed on the surface of the slab, the ventilation plate is installed at a position corresponding to the space between the exposed sheet laid at a predetermined interval, and installed on the surface of the slab to discharge the air and moisture of the surface of the slab to the outside Exposed sheet waterproof structure, characterized in that further comprises a de-base that is made.

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