JPH05340040A - Water proof execution method for floor - Google Patents

Abstract

PURPOSE:To provide an execution method for a floor face suffering rainwater such as the roof floor walking floor face of a building or the like which can facilitate the using of a wet floor as a walking floor in a short time in such a case as an execution in the state of the wet floor face especially after the rain and an waterproofing repair work. CONSTITUTION:A base 1 is formed of hard polyurethane foam, and has electrical grooves communicating lengthwise and breadthwise on its back face and a reinforcing waterproof painted film layer 2 on its surface. After thermal insulating waterproof accomplished plates whose peripheral edge parts having a fixed width are formed into a part processed for a joint are closely spreadedly arranged in order on a concrete floor to which adhesive is applied, a joint waterproof painted film thin plate 5 is charged in a shallow reverse triangular recess formed on the joint part, and sticked and then smoothly finished.

Description

Detailed Description of the Invention

[0001]

SUMMARY OF THE INVENTION The present invention relates to a construction method for realizing a waterproof structure for a floor surface that receives rainwater, such as a rooftop floor surface of a building or a pedestrian deck floor surface. For a new floor suitable for construction where the target floor surface is wet, such as for example, or construction that must be able to be used as a step in a short time, such as waterproof repair work. It is intended to provide a waterproof construction method.

[0002]

2. Description of the Related Art From the viewpoint of efficient use of space, the tendency toward facility rooftops and three-dimensional sidewalks has become established, especially in urban areas. Some properties are in the process of renovation, and it is required to be constructed as a floor surface of the rooftop facility of the existing building or as a foot surface of the existing pedestrian deck by means that does not interfere with its function as much as possible. . On the other hand, in recent years, the rooftop floor of newly constructed buildings, etc., must be combined with the original waterproof structure as well as the heat insulation structure to improve the habitability of the building. In addition, the weather is not particularly good, and if the construction site is still wet with rainwater, even the start of work will be jeopardized, and it will be impossible to hope for shortening the construction period.

In order to cope with such a current situation, a waterproof structure is also required, including those which must be used together with a heat insulating structure.
If the membrane waterproof construction method is applied on-site as before, it is very difficult to use it as a floor surface immediately after the construction, and it is almost impossible to shorten the new waterproof construction. Since I was able to find out from the standpoint of a specialist who has been involved in waterproofing work in this kind of industry for many years, I have continued earnest development and research, repeated trial and error, and as a result, I can come here and put it to practical use. The waterproof construction method has been successfully completed, and the configuration thereof will be described in detail below.

[0004]

The floor waterproofing method of the present invention basically has the following configuration. That is, using a hard urethane foam of an appropriate thickness as a substrate, the back surface thereof has ventilation grooves communicating in the vertical and horizontal directions, on the surface, waterproof coating undercoat layer, reinforcing glass wool mat, waterproof coating intermediate coating layer, It has a reinforcing waterproof coating layer having a layered structure of a waterproof coating top layer, and a peripheral predetermined width portion of the reinforcing waterproof coating layer is cut off gradually toward the outer periphery, and has a satin-like surface. Water-soluble emulsion type adhesive is applied to the existing heat-insulating waterproof pre-formed plate formed on the processed part for the seam directly on the concrete floor or on the concrete floor that has already been subjected to some surface treatment. After laying them out without any gaps, a layer of waterproof coating undercoat layer, reinforcing glass wool mat, waterproof coating intermediate coating layer, waterproof coating top coating layer is formed in the shallow inverted triangular recess formed in the seam. Consisting of structure Loading the work th waterproofing coating sheet, adhering a floor waterproofing execution method of a smooth finished by grinding seat.

All of the heat-insulating waterproof prefabricated plates are factory-processed and manufactured, and in addition to accurately mass-producing the basic size, for example, 900 × 1800 mm, they have an appropriate size for an accessory that compensates for a size crack. Items can be prepared as needed. Regardless of their size, the back surface of the rigid urethane foam to be the substrate has a square cross section, a semicircular groove, or an inverted V-shaped groove. Such as ventilation grooves,
Form vertically and horizontally in a communication pattern, such as a grid pattern or radial pattern.

On the surface of the substrate, a reinforced waterproof coating layer is also produced by quality control at the factory processing stage so as to have a hard and uniform layer structure free from pinholes. , Its laminated structure is basically formed of a four-layer structure of a waterproof coating undercoat layer, a reinforcing glass wool mat, a waterproof coating intermediate coating layer, and a waterproof coating overcoat layer. These undercoat layer, intermediate coating layer and overcoat layer The formation of each layer is realized by coating and drying a polyester coating film, a vinyl ester resin coating film and other known weather resistant resin coating films. In addition, as the substrate, a hard urethane foam plate excellent in heat insulation is used alone,
Alternatively, a commercially available hard urethane foam plate in which special moisture-proof paper or the like is laminated and integrated on both front and back surfaces or one surface, for example, Achilles board (trade name of Achilles Co., Ltd.) can be adopted.

The substrate on which the reinforcing waterproof coating layer having the above-mentioned layer structure is formed also has a peripheral edge of a predetermined width, for example, 50 mm or 100 mm after the reinforcing waterproof coating layer is formed, regardless of the substrate size. A certain width portion is scraped off toward the periphery by an appropriate means such as a grinder, and the scraped surface is made into a matte surface, that is, a processed part for seams of fine uneven surface, and adheres to each other. The paving and adjoining seam processing parts are combined so that a shallow inverted triangular recess with a satin surface can be realized.

[0008] In this way, a large amount of pre-insulated water-proof and water-proofed board of a predetermined standard that has been processed and produced in a factory is carried in to a site requiring construction, and after passing through a leveling step, directly onto the concrete slab surface ready for the next step, or already. On the floor surface that has been built and has been formed into a normal waterproof structure on the concrete slab, while deforming the surface, leveling up the raised part, removing peeling pieces and other dust, While applying the water-soluble emulsion type adhesive over the range according to the construction range, the heat insulating and waterproof pre-formed plates are sequentially laid side by side with the ventilation groove forming side of the back face down. At that time, even if rainwater remains on the laying surface of the heat-insulating waterproof prefabricated plate, the adhesive used is a water-soluble emulsion type, and the rainwater remaining between the prefabricated heat-insulating waterproofing plate and the laying surface will be insulated over time. Since it evaporates and is discharged through the ventilation groove on the backside of the waterproof prefabricated board, no consideration is required for the dryness of the laying surface, and water was sprinkled on the rooftop slab after rain or for cleaning on the existing rooftop, etc. Immediately after that, the laying construction of these heat-insulating and waterproof prefabricated plates will be carried out according to the prescribed manual.

[0009] In the process of laying a basic size heat-insulating waterproof pre-made plate on the floor surface to be constructed, a part where the basic size heat-insulating waterproof pre-made plate cannot be laid on the wall in any direction, etc. In the case of adopting a heat-insulating waterproof pre-made plate of a character object of a size suitable for that size, or if it still does not match, cut it on site and grind it to the specified width on the cutting side to make a seam processing part. Formed and adopted. Further, the outer peripheral portion of the floor surface to be constructed, that is, the draining treatment between the wall and the parapet, etc., is performed by performing a known draining treatment that has been adopted until now or other appropriate construction treatment as necessary. It will be.

[0010]

Embodiment 1 The embodiment shown in the drawings is an embodiment having a typical structure of a heat-insulating waterproof pre-formed plate and a seam waterproof coating thin plate which are indispensable for carrying out the floor waterproofing method of the present invention. Therefore, FIG. 1 is an overall perspective view of the heat-insulating waterproof pre-formed plate B, FIG. 2 is an enlarged perspective view of the main part as seen from the back surface of the heat-insulating waterproof pre-formed plate B, and FIG. FIG. 4 shows an enlarged cross-sectional view of the main part immediately after connection, and FIG. 4 shows an enlarged cross-sectional view of the main part in a finished state.

The substrate 1 is made of a hard urethane foam having an appropriate thickness, for example, Achilles board (trade name of Achilles Co., Ltd.) or a commercially available one, and laminated with special moisture-proof paper on both front and back surfaces or one surface. An integrated one can be adopted. Further, on the surface of the substrate 1, the reinforced waterproof coating layer 2 is produced by quality control at the factory processing stage so as to have a hard and uniform layer structure free from pinholes. The laminated structure is basically formed by a four-layer structure of a waterproof coating undercoat layer 21, a reinforcing glass wool mat 22, a waterproof coating intermediate coat layer 23, and a waterproof coating topcoat layer 24. Each of the layer 23 and the overcoat layer 24 is formed by applying a polyester coating film, a vinyl ester resin coating film or other known weather-resistant resin coating material and drying.

The substrate 1 on which the reinforcing waterproof coating layer 2 having the above-mentioned layer structure is formed also has a peripheral edge having a predetermined width, for example, 50 mm, after the reinforcing waterproof coating layer 2 is formed, regardless of the substrate size. A certain width, such as 100 mm, is scraped off toward the periphery by an appropriate means such as a grinder, and the scraped surface is used as a satin-finished surface, that is, a processed portion 3 for a seam of fine uneven surface, It is laid out in close contact with each other, and adjacent seam-processed portions 3 and 3 are combined so that a shallow inverted triangular concave portion having a satin-finished surface can be realized. As shown in the perspective view of the main part when viewed from the back surface of FIG. 2, shallow ventilation grooves 4 are formed in a grid pattern on the back surface of the substrate 1, and when the boards 1, 1, ... Are spread, Adjacent substrates 1, 1, ... Ventilation grooves 4, 4, on the back side
... must be formed so that they communicate with each other.

A large number of heat-insulated and waterproof pre-fabricated boards B produced by the factory having the above-mentioned structure are carried into the site, either directly on a newly constructed concrete floor, or on an existing building.
A concrete floor that requires some surface treatment, such as a waterproof layer that is no longer functioning, or a cushion floor material (trade name) has been laid and requires repair (in any case, the floor is wet. After applying a water-soluble emulsion type adhesive on top of it, it is laid out in order without any gaps, and the shallow parts formed by the adjacent seam processing parts 3 and 3 of each heat-insulating waterproof pre-formed plate B seam part. A seam waterproof coating having a layer structure of a waterproof coating undercoat layer 51, a reinforcing glass wool mat 52, a waterproof coating intermediate coating layer 53, and a waterproof coating upper coating layer 54 after applying an adhesive to the inverted triangular concave portion. After loading and adhering the thin film plate 5, the surface is smoothed by a grinder and the like, and then the polyester film and vinyl ester are applied to the smoothed part and its periphery. Aburanurimaku applying other known weather-resistant resin coating, if dried, to complete all the steps of the floor waterproofing construction method of the present invention.

(Effect) The waterproof construction method for floor according to the present invention comprising the above-mentioned construction methods is factory-produced, and the waterproof coating undercoat layer 21, the reinforcing glass wool mat 22, the waterproof coating intermediate coating layer 23, Since the existing heat-insulating waterproof board B for which the quality of the surface-coating waterproof layer 2 having a four-layer structure of the waterproof coating top-coat layer 24 is improved and homogenized, it is carried in on site and constructed. Compared with the construction method of forming a waterproof coating layer by on-site construction up to, first of all, the strict reinforced waterproof coating layer 2 is formed under factory control, first of all,
It is said that unexpected factors such as the occurrence of unexpected rain leakage after the formation of the waterproof structure, such as the lack of layer thickness and the occurrence of pinholes, as in the case of the on-site coating film waterproofing method, are removed in advance, and the reliability as a waterproof layer is extremely enhanced. It has a great feature.

Further, since the reinforcing waterproof coating layer 2 is a construction method for connecting preformed heat-insulating waterproof plates under strict control, the concrete floor surface to be constructed should be immediately after raining. Even if it is wet, it will not hinder the construction and it will be possible to walk immediately after the construction is completed.Therefore, the construction depends on the weather conditions, and even if it is after the provisional rain, the construction site will be wet. If this is the case, it will not be possible to carry out the construction as it is, and it will be possible to eliminate problems such as before, such as waiting until it dries, or starting the construction only after wiping the rainwater off with a rag etc. In particular, a reinforced waterproof coating layer 2 having a structure as shown in the examples
According to the floor waterproofing method that employs the existing heat-insulating waterproofing plate B formed of the substrate 1 and the seam waterproof coating thin plate 5, those effects become more remarkable, and the construction is efficient and economical. Can be implemented.

As described above, the floor waterproofing method of the present invention is unprecedented with the use of the factory-produced and well-controlled quality heat-insulating waterproof plate and the seam waterproof coating thin plate 5. Since it is a waterproof construction method, it can be efficiently constructed without being affected by the concrete floor surface condition, and its waterproof function is extremely reliable, so that it is highly economical. In particular, it is expected that its power will be greatly exerted as a waterproof construction method for commercial buildings, factory constructions, etc., whose sales will be greatly affected by the construction period of the buildings.

[Brief description of drawings]

FIG. 1 is a perspective view showing an entire structure.

FIG. 2 is an enlarged perspective view of a main part as seen from the back surface.

FIG. 3 is an enlarged sectional view of an essential part showing a waterproof structure realized in the middle of a construction process.

FIG. 4 is an enlarged sectional view of an essential part showing a waterproof structure at the final stage of construction.

[Explanation of symbols]

 1 substrate 2 surface coating waterproof layer 21 same waterproof coating undercoat layer 22 same reinforcing glass wool mat 23 same waterproof coating intermediate coating layer 24 same waterproof coating topcoat layer 3 joint processing part 4 ventilation groove 5 joint waterproof coating thin plate 51 same waterproof coating undercoat layer 52 same reinforcing glass wool mat 53 same waterproof coating intermediate coating layer 54 same waterproof coating upper coating layer B heat insulation waterproof ready-made board

Claims (1)

[Claims] 1. A hard urethane foam having an appropriate thickness is used as a substrate, which has ventilation grooves communicating in the vertical and horizontal directions on the back surface, and a waterproof coating undercoat layer, a reinforcing glass wool mat, and a waterproof coating on the surface. While having a reinforcing waterproof coating layer having a layer structure of a coating layer and a waterproof coating topcoat layer in this order, the peripheral predetermined width portion of the reinforcing waterproof coating layer is cut off in a tapering manner toward the outer periphery, and Whether the heat-insulating waterproof pre-formed plate formed in the processed part for the seam-like surface is directly on the concrete floor,
Alternatively, after applying a water-soluble emulsion type adhesive on a concrete floor that has already been subjected to some surface treatment and laying it out in order without any gaps, a shallow inverted triangular recess formed in the seam , Waterproof coating undercoat layer,
A waterproof construction method for floors, in which thin seam waterproof coating sheets having a layered structure of a reinforcing glass wool mat, a waterproof coating intermediate coating layer, and a waterproof coating top coating layer are loaded, adhered, and smoothed by a grinder.