CN100532755C - Waterproof structure and waterproof construction method and used lower membrane - Google Patents

Abstract

The waterproof structure or waterproof construction method has the back of waterproof roll heated to smelt and adhered onto the base surface. Thus obtained waterproof structure includes one waterproof roll layer, one base layer and one lower roll layer between the waterproof roll layer and the base layer, with the waterproof roll layer being fixed onto the lower roll layer through hot smelting the hot smelted layer in the lower roll layer. The present invention has high construction efficiency, high construction accuracy, and capacity of preventing heat damage and heat deformation of the waterproof roll.

Description

Waterproof structure and waterproof construction method and used lower membrane

technical field

The present invention relates to a waterproof structure, its construction method and new parts used, in particular to the lower coil as a new part sandwiched between the asphalt waterproof layer and the base, its related waterproof structure and waterproof construction method.

Background technique

The asphalt waterproof thermal construction method, that is, heating and melting asphalt in a melting pot at the construction site, and using the molten asphalt to spread and laminate asphalt roofs and other construction methods, has high waterproof reliability, and now occupies the mainstream of waterproof construction methods.

That is, in the conventional method of asphalt waterproofing and heat-repellent construction on a flat surface, a block of asphalt with a predetermined shape is crushed, put into a pot using a kerosene burner as a heat source, heated to about 260°C to melt, and transported in an 18-liter container or the like to At the construction site, spread the melted asphalt evenly with a spoon in front of the roofing material and then join and lay the roofing material on it. Repeat this procedure 2 to 3 times to form an asphalt waterproof layer. In each operation, the molten bitumen is supplemented by pulverizing bitumen blocks, which melts.

Related technologies are disclosed in the following documents.

[Patent Document 1] Japanese Patent Laid-Open No. 2003-313996

[Patent Document 2] Japanese Patent Laid-Open No. 2000-234421

[Patent Document 3] Japanese Patent Laid-Open No. 08-302927

[Patent Document 4] Japanese Patent Laid-Open No. 08-239961

Contents of the invention

However, the above-mentioned prior art has the following problems.

(a) Since the melting pot is moved into the construction site, heated for a predetermined period of time to melt it, and then sprinkled to carry out the work, there are problems such as work efficiency and cost; and because the asphalt that is melted and in a high-heat state is handled, the work itself is difficult. It will also inevitably be dangerous.

(b) It will cause problems to the environment around the construction site. That is, the heating and melting operation of asphalt generates smoke and odor, which adversely affect the living environment of the surrounding residents. This problem is particularly conspicuous in repair works and the like of inhabited buildings.

In order to solve the above-mentioned conventional problems, the present invention provides the following waterproof structure: a waterproof coiled material; There is a hot-melt layer on one side of the lower coil, and the other side opposite to the base surface is bonded and fixed on the base by a fixing method, and the waterproof coil is bonded and fixed on the base by heating and melting the hot-melt layer of the lower coil. on the lower coil.

In addition, the present invention realizes the following lower layer coil material in order to solve the problems of the above-mentioned conventional asphalt waterproof and thermal construction method: it is the lower layer coil material interposed between the base surface and the waterproof coil material, and is characterized in that it has The hot-melt layer, the surface of the hot-melt layer is covered with a barrier material, and a buffer part using foaming ink material is formed between the barrier material and the surface of the hot-melt layer.

In addition, the present invention realizes a waterproof construction method consisting of the following steps in order to solve the above-mentioned conventional problems:

(1) The process of coating the primer on the base surface as needed;

(2) The process of joining and fixing the above-mentioned lower coil on the base surface;

(3) The process of heating and melting the hot-melt layer of the lower layer coil adhered and fixed on the base surface by blowtorch and hot air;

(4) A process of adhering the waterproof membrane to the melted surface of the lower membrane, and joining and fixing the lower membrane and the waterproof membrane.

The waterproof structure of the present invention has the functions of heating the surface of the lower coil material fixed on the base or other base surface and interposed between the base and the waterproof coiled material to melt it, and bonding and adhering the waterproof coiled material on the melted surface. Because of the structure of the material, there is no need for large-scale asphalt heating and melting at the construction site like the waterproof structure using the conventional asphalt waterproofing thermal construction method. waterproof structure.

In addition, due to the structure of the lower coiled material of the present invention sandwiched between the base surface and the waterproof membrane, one side has a hot-melt layer, and the surface of the hot-melt layer is covered with a barrier material, and the barrier material and the hot-melt layer The buffer portion made of foam ink material is formed between the surfaces, so when constructing a waterproof structure, there is no need for large-scale asphalt heating and melting at the construction site, unlike the waterproof structure using the conventional asphalt waterproof thermal construction method. , can realize the waterproof structure that does not pollute the environment, and is efficient, safe, and has high reliability.

In addition, since the waterproof construction method of the present invention has the following structure, it does not require large-scale operations such as heating and melting of asphalt at the construction site like the waterproof structure using the conventional asphalt waterproof thermal construction method, and can realize non-toxic Pollution environment, efficient, safe and highly reliable waterproof structure:

(1) The process of coating the primer on the base surface as needed;

(2) Next, the process of joining and fixing the above-mentioned lower coil on the base surface;

(3) The process of heating and melting the hot-melt layer of the lower coil material adhered and fixed on the base surface by blowtorch, hot air or other heating devices;

(4) A process of adhering the waterproof membrane to the melted surface of the lower membrane, and joining and fixing the lower membrane and the waterproof membrane.

Description of drawings

Fig. 1 is a cross-sectional view of a waterproof structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of one embodiment of the lower web 13 shown in FIG. 1 .

FIG. 3 is a partially omitted perspective view of the lower layer coil 13 shown in FIG. 2 .

Fig. 4 is an explanatory diagram of a construction method of laying waterproof coiled material on a base using a blowtorch construction method according to an embodiment of the present invention.

Fig. 5 is a cross-sectional view of a waterproof membrane as a waterproof membrane.

6 is an explanatory diagram of a conventional construction method in base waterproofing construction using a blowtorch construction method using a waterproof membrane.

Detailed ways

The waterproof membrane is composed of a waterproof membrane, and the lower layer of membrane is composed of a sheet material obtained by impregnating and coating asphalt on a base material. The hot-melt layer in the lower coil is composed of the asphalt layer of the lower coil, forming an adhesive layer on one side of the lower coil. Therefore, the waterproof structure according to the embodiment using such components is as follows.

That is, the waterproof structure is: a waterproof coiled material formed on the base, a lower layer coil interposed between the waterproof coiled material and the base and bonded and fixed to the waterproof coiled material and the base, and formed on the base material The opposite surface of the lower coil material formed by dipping and coating the asphalt-coated sheet material to the base has an adhesive layer bonding the base, the base and the lower coil are bonded and fixed through the adhesive layer, and the waterproof coil The material is bonded and fixed on the lower coil by heating and melting the surface of the lower coil that is opposite to the waterproof coil.

As mentioned above, the structure of the lower membrane is such that it is sandwiched between the base and the waterproof membrane, and the waterproof membrane is welded by heating and melting the surface opposite to the waterproof membrane, and the adhesive layer formed on the other side Fixed on the base, so as to engage and fix the waterproofing membrane on the base. Then, the lower-layer coiled material comprises a main part formed by a sheet-like material obtained by dipping and coating asphalt on the base material, the first barrier material adhered to the face of the main part opposite to the waterproof coiled material, and the first barrier material formed on another One surface is composed of an adhesive layer on which a second barrier material is adhered, and a buffer portion using a foamed ink material is formed between the first barrier material formed of a resin film and the main body. Furthermore, the buffer portion is preferably constituted by a lattice body printed and applied on the surface of the resin film. The fixing method of the lower layer coil on the base surface may also adopt a partial fixing method based on mechanical fixing using screws, fixing pins, etc., or a partial bonding method using an asphalt-based adhesive instead of fixing using the adhesive layer. join.

Example

Hereinafter, the present invention will be further described through examples.

Fig. 1 is a cross-sectional view of a waterproof structure according to an embodiment of the present invention. In the figure, 11 is a waterproof coiled material as a waterproof coiled material. As known, the waterproof coiled material 11 is formed by dipping and coating modified asphalt on a base material, and a mineral sand layer as a finishing surface is formed on the surface. 12. 13 is the lower coil interposed between the waterproof coil 11 and the surface of the base concrete S. The lower layer membrane 13 is bonded and fixed to the base surface through the adhesive layer formed on the lower surface, while the lower layer membrane 13 and the waterproof membrane 11 are bonded by the heated and melted surface layer of the lower layer membrane 13 .

In FIG. 1 , the lower layer web 13 and the base surface are bonded over the entire surface, but a well-known insulating portion may be formed between the two to form a so-called exhaust passage for preventing swelling.

FIG. 2 is a cross-sectional view of one embodiment of the lower web 13 shown in FIG. 1 . The main body of the lower coil 13 is obtained by dipping and coating a modified asphalt on the base material 14 to form the asphalt layer 15 and the asphalt layer 16 . The modified asphalt of the asphalt layer 15 is made of a material with higher melting properties than that of the asphalt layer 16 . In addition, in the figure, 17 is a hot-melt layer melted by heating, and the hot-melt layer 17 is composed of the surface layer of the asphalt layer 15 in this embodiment. In addition, 17a is the 1st barrier material pasted and provided on the surface of the hot-melt layer 17 (asphalt layer 15). In addition, 18 is an adhesive layer formed on the surface of the said asphalt layer 16, and the surface is covered with the 2nd barrier material.

The lower layer coil material described in this embodiment will be further described with reference to FIG. 3 . FIG. 3 is a partially omitted perspective view of the lower layer coil 13 shown in FIG. 2 . The first barrier material 17a pasted on the surface of the hot-melt layer 17 (asphalt layer 15) is composed of a resin film 17b and a lattice body 17c as a buffer layer formed by printing and coating using a foaming ink on the back side.

As the resin film, any of polyethylene, polypropylene, nylon, polyester, and the like can be used, but a material with a high heat resistance temperature is not preferable. From this point of view, polyethylene, polypropylene, nylon, and low melting point polyester are preferred. In addition, the film thickness is preferably 50 μm or less because it is heat-shrunk and the shrunk film remains on the surface of the hot-melt layer. In addition, as the foaming ink, a known material obtained by dissolving a thermoplastic synthetic resin in a solvent and adding a foaming agent is used.

In this embodiment, the first barrier material 17a has the above-mentioned structure, but it is also possible to make the hot-melt layer 17 instantaneous when heated by adopting a structure that is easy to melt or shrink like a foamed styrene powder layer or a polystyrene film. Direct exposure so that this melting takes place quickly and easily.

The construction steps of the waterproof structure using the lower layer membrane 13 will be described with reference to FIGS. 1 to 4 .

In Fig. 4, 11 refers to the waterproof coiled material described in Fig. 1, which has a mineral sand layer 12 on the surface and is rolled up in a roll shape. In addition, 13 is the lower coil adhered to the surface of the concrete base S. The bonding of the lower coil material 13 to the base is carried out as follows: the second barrier material 18a of the lower coil material 13 shown in FIG. on the surface of S.

Next, as shown in Figure 4, after placing the waterproof roll material 11 stored in a roll as the waterproof roll material on the designated position on the lower layer roll material 13, the flame F of the torch B is radiated to bake the surface of the lower layer roll material 13. 3, the hot-melt layer 17 (consisting of the asphalt layer 15 in this embodiment) of the lower layer of coiled material 13 shown in FIG. Since the radiation of the flame F targets the surface of the lower layer coil 13 that is easily recognized by the naked eye, the operator can easily confirm and adjust the molten state while operating, and the waterproof membrane 11 and the lower layer coil under appropriate conditions can be realized. 13 bonding, compared with the prior art, can achieve much better construction accuracy.

In Fig. 2 and Fig. 3, the flame in the baking operation is radiated from above the first barrier material 17a. By heating, first, gas is generated from the foaming components of the lattice body 17c using the foaming ink, and a space is formed between the hot-melt layer 17 and the film 17b. Since the heat capacity of the void is very small compared with that of the non-foamed portion, the thin film 17b is easily melted by the heat of the flame from this portion. Next, this causes the film 17b covering the hot melt layer 17 to finely disperse and shrink as a whole, and the hot melt layer 17 is exposed to and melted by a relatively small amount of heat. In this embodiment, the flame radiation of the torch constitutes the heating means, but the injection of hot air may also be used.

As mentioned above, according to the present invention, the barrier material coated with the adhesive layer by the coating of liquid or paste such as limonene can be rapidly melted, the adhesive layer is exposed, and the lower layer of the coil is bonded and fixed immediately. On the base surface, at the same time, during the construction process, the melting of the barrier material in the lower coil and the melting of the hot-melt layer can also be seen clearly in the operator's proper field of vision, so good construction efficiency can be obtained That is, construction accuracy. In addition, since the heating is performed on the lower membrane, thermal damage to the waterproof membrane will not occur, and the prescribed rigidity can be maintained immediately after construction, and problems such as easy deformation can be avoided.

In order to clarify the advantages of using the lower layer membrane of the present application, the conventional thermal bonding construction method of the lower layer membrane and the waterproof membrane will be described below.

Fig. 5 is a cross-sectional view of the waterproof roll material 2, which has a structure in which a base material 3 such as non-woven fabric is impregnated and coated with modified asphalt. In the figure, 2a is an asphalt layer with a high melting temperature, and a mineral sand layer as a finishing layer is formed on the surface. In addition, 2b is a modified asphalt layer on the base side, corresponding to the thermal construction method, using a material with a low melting temperature, and a resin film as a barrier layer for preventing adhesion is attached to the surface, that is, the surface opposite to the base 4 etc.

In the conventional method of asphalt waterproofing and heat-repellent construction on flat surfaces, asphalt blocks of a predetermined shape are crushed, put into a pot using a kerosene burner as a heat source, heated to about 260°C to melt, and transported to the construction site in an 18-liter container, etc. At the site, spread the melted asphalt evenly with a spoon in front of the roofing material and join the operation of laying the roofing material on it. Repeat this method 2 to 3 times to form an asphalt waterproof layer.

However, the above-mentioned prior art has the following problems.

(a) Since the melting pot is moved into the construction site, heated for a predetermined period of time to melt it, and then sprinkled to carry out the work, there are problems such as work efficiency and cost; and because the asphalt that is melted and in a high-heat state is handled, the work itself is difficult. It will also inevitably be dangerous.

(b) It will cause problems to the environment around the construction site. That is, the heating and melting operation of asphalt generates smoke and odor, which adversely affect the living environment of the surrounding residents. This problem is particularly conspicuous in repair works and the like of inhabited buildings.

Fig. 6 is an explanatory diagram of a conventional construction method in base waterproofing construction using the adhesion construction method using the aforementioned waterproof membrane. In this construction method, firstly, a primer is applied on the base surface S as required, and then the rolled modified waterproof roll material 2 is unrolled in the direction of the arrow, and the modified waterproof roll material 2 is radiated to the back of the modified waterproof roll material 2 by a blowtorch. The flame F of B is baked, and the surface of the modified asphalt layer 2a of the modified asphalt 2, including the resin film 4, is melted. After the modified bitumen is melted in this way, the modified waterproof roll material 2 is rotated, and the melted part is pressed on the base surface S, and then the operation is repeated to join and fix the modified waterproof roll material 2 on the base. However, such a construction method has the following problems.

(c) Since the heating with the torch is carried out by the operator holding it, the radiation direction of the flame cannot be kept correct, so the heat radiation to the target asphalt layer may be uneven, and the correct melting state may not be obtained.

(d) Since the radiation direction of the flame is a narrow part surrounded by the substrate and the coiled material, it is difficult for the operator to confirm the melting state with the naked eye, and sometimes the unmelted part remains, and the specified accuracy cannot be obtained for the degree of adhesion between the waterproof coiled material and the substrate , may impair waterproof reliability.

(e) Since the back surface of the waterproofing membrane itself is heated and melted, it will adversely affect the finishing layer (mineral sand layer) on the surface side, or the waterproofing membrane is still in a softened state immediately after the adhesion construction The material is easy to deform, and it needs careful attention at the construction site, which will also affect the construction efficiency.

On the other hand, since the lower-layer coil and the waterproof membrane bonded thereto can be fixed by heating and melting the surface of the lower-layer coil, the problems of the above-mentioned conventional construction methods are solved.

Claims (3)

1. a waterproof construction is characterized in that possessing: waterproof roll; Be located between this waterproof roll and the basal surface, described waterproof roll and basal surface are engaged fixing following layer coiled material, on the one side of this time layer coiled material, has hot melt layer, simultaneously the another side relative with basal surface is engaged by fixing means and anchors on the basal surface, and the hot melt layer by layer coiled material under the heating and melting engages described waterproof roll and is fixed on down on the layer coiled material.

2. following layer coiled material, be the following layer coiled material that is located between basal surface and the waterproof roll, it is characterized in that on one side, to have hot melt layer, this hot melt layer surface is covered with barrier material, is formed with the buffer part that adopts the foam ink material between barrier material and hot melt layer surface.

3. a waterproof construction method is characterized in that, is made of following operation:

(1) on basal surface, is coated with the operation of primer as required;

(2) the described layer coiled material down of claim 2 is engaged the operation that is fixed on the basal surface;

(3) by blowtorch, hot air to the hot melt layer that adhesion is fixed on the following layer coiled material on the basal surface heat, the operation of fusion;

(4) on the fusion face of following layer coiled material bonding waterproof roll, will descend layer coiled material to engage the operation of fixing with waterproof roll.

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