JP4066323B2 - Waterproof finish structure and waterproof finish method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof finish structure waterproofed on a new or existing site such as a floor of a building, a parking lot, a rooftop, and the construction method, and more specifically, a breathable sheet on a base material such as a floor. The present invention relates to a waterproof finishing structure in which a body, a fiber reinforced resin layer finished on a partial surface or the entire surface of the breathable sheet body, a fixture, and a fiber reinforced resin layer are sequentially applied and finished, and a construction method thereof.
[Detailed explanation on industry]
[0002]
[Prior art]
Conventionally, for waterproofing in new or existing parts such as building rooftops, floors, parking lots, etc., waterproofing with waterproof sheets, resin waterproofing that forms a waterproof layer by applying resin, resin and fiber reinforcement are combined Construction methods such as FRP waterproofing have been adopted.
In such waterproof construction, if it is not applied to a sufficiently dry base, the waterproof layer will cause bulges due to vapor pressure or air expansion of the base, causing peeling, leakage, etc. Problems such as damage occur. However, there has been a demand for a construction method that strongly improves the demand for shortening the construction period.
In addition, existing resin waterproof floor, is Tsu repair construction near such as FRP floor, peeled off great deal of man-hours to the existing floor, there is virtually impossible situation in order to take the time, existing floor of it There was a need for a repair method that could be applied in a state of repair.
[0003]
[Means for Solving the Invention]
The present invention is considered in view of such circumstances, has been developed, the state of the underlying waterproof finishing method a waterproof finish structure capable necessarily waterproofing execution be appropriate and do not Tsu state der the conventional construction methods This is provided and will be described in detail below.
[0004]
As described above, in the waterproof finish structure of the present invention, a breathable sheet is disposed on a substrate such as a new floor or an existing floor, and a fiber reinforced resin layer is partially finished thereon, and then the fiber reinforced resin layer is formed. A waterproof finishing method in which a fixture is driven into the substrate from above, and then a fiber reinforced resin layer is applied and finished on at least the fixture, or a breathable sheet body is disposed on a substrate such as a floor, and the entire surface thereof is disposed. After the fiber reinforced resin layer is applied, a fixing tool is driven into the substrate from the fiber reinforced resin layer, and then the fiber reinforced resin layer is applied and finished on at least the fixing tool.
[0005]
The waterproof finishing method according to the present invention is applicable to new floors, rooftops, parking lots, existing floors, parking lots, rooftops, etc. as described above, and the base material is also mortar, concrete, foamed concrete, Although it can be constructed for all materials such as iron plate, stone plate, wooden plate, resin waterproof floor, etc., especially for substrates such as mortar, concrete, foamed concrete, etc. where the moisture content of the substrate is a problem It is advantageous in that it can be constructed even when the moisture content of the substrate is high, and it can be constructed on an old resin waterproof floor that has deteriorated, and can be constructed without any problems under any construction conditions. .
[0006]
The breathable sheet according to the present invention is not particularly limited as long as it is made of a breathable material or structure, but examples thereof include synthetic fibers such as polyester, nylon, vinylon, and acrylic, or these One side or both sides of a base material such as a composite fiber, a fiber such as a glass fiber, a natural fiber such as a hemp fiber, a nonwoven fabric processed from a composite fiber in which a synthetic fiber is mixed with an inorganic fiber, a natural fiber, etc. A thin air-permeable layer is laminated, or a material in which the base material is laminated on both surfaces of the air-impermeable layer.
In such a breathable sheet body, the base material of the breathable layer is preferably one having a thickness of 0.5 to 2 mm . If the thickness is 0.5 mm or less, the thickness becomes thinner with time and the case where air permeability is lost is expected, which is not preferable.
In addition, if the breathable sheet body has holes of various shapes such as a circle and a rectangle in place, the resin used for the construction of the fiber reinforced resin layer continues to the substrate surface through the holes. Since the fiber-reinforced resin layer is formed by curing in the state, it is possible to ensure the bonding with the base body together with the bonding with the fixing tool, and the number of the fixing tools to be placed can be reduced.
[0007]
For the non-breathable layer, a non-breathable material having a thickness of about 0.1 to 1.0 mm such as a resin sheet, for example, a synthetic resin sheet such as polyethylene resin, polypropylene resin, vinyl chloride resin, or asphalt sheet is used. .
[0008]
In the case of a breathable sheet body in which the non-breathable layer is laminated only on one side, it is desirable to arrange the non-breathable layer facing up. By disposing the non-breathable layer on the top, it is possible to prevent the thermosetting resin applied thereon from penetrating into the breathable sheet body and thereby preventing the breathability from being impaired.
[0009]
Other examples of air-permeable sheet, for example, various rubber sheets, asphalt sheet, the surface of the sheet having a thickness of 1 to 5 mm consisting of a plastic sheet, the planar shape of the grid-shaped, and Tsu der like hexagon, flat A breathable sheet body provided with grooves whose shapes are connected to each other can also be used as a breathable sheet body that can be used as a vent portion in which the grooved surface is brought into contact with the substrate side.
[0010]
The substrate and the air-permeable sheet body may be simply arranged or may be fixed by bonding with an adhesive.
Further, when it is difficult to directly adhere to the substrate, a resin primer such as urethane resin or epoxy resin may be applied to the surface of the substrate and then adhered with an adhesive.
[0011]
A fiber reinforced resin layer is formed on a part or the entire surface of the breathable sheet body.
The fiber reinforced resin layer is formed by arranging a reinforcing fiber sheet, for example, a glass fiber sheet on the surface of the non-breathable layer laminated on the base material of the breathable sheet body, and an epoxy resin in which a curing agent is blended. Apply a thermosetting resin such as unsaturated polyester resin or vinyl ester resin, and then add a reinforcing fiber sheet, or apply a thermosetting resin on the non-breathable layer on the surface of the breathable sheet. It is obtained by forming a fiber reinforced resin layer by stacking the reinforcing fiber sheet on the surface and further curing the thermosetting resin in a state where the thermosetting resin is infiltrated into the reinforcing fiber sheet.
[0012]
Furthermore, a hole is provided at an appropriate position of the fiber reinforced resin layer formed as described above, and a fixing tool is driven to the base through the hole to fix the fiber reinforced resin layer and the breathable sheet body to the base.
It is desirable that the size of the hole is larger than the shaft diameter of the fixture, and the fixture is driven into the base body in a loosely fitted state. If the hole diameter and the shaft diameter of the fixing device are the same or small, the fiber reinforced resin layer will be damaged when the fixing device is driven, and when the fiber reinforced resin layer contracts or expands, the stress reaches the fixing device and the fixing device breaks. This is not preferable because problems such as breakage of the reinforced resin layer occur.
[0013]
In this way, an elastic sealing material, for example, a silicon sealing material made of an elastic material, a polysulfide sealing material, a urethane resin sealing material, or the like, is injected and filled into the gap provided between the hole and the shaft of the fixture. As a result, the fixture and the fiber reinforced resin layer are gently fixed, and even if the fiber reinforced resin layer contracts or expands due to temperature changes, the stress does not directly affect the fixture, but the stress of the fiber reinforced resin layer contracts or expands. This prevents the fixture from being detached or damaged, and a waterproof finish structure with excellent durability can be obtained.
[0014]
As the fixing tool, a driving-type fixing bracket that is driven to the ground with an air gun or a hammer, or a fixing bracket that is provided with a lower hole and fixes a screw that is used integrally with an open leg plug, or the like is used. The fixture may be made of plastic, in addition to metal such as iron, stainless steel, and aluminum.
In addition, when a breathable sheet body provided with holes is used, the resin used for the fiber reinforced resin layer formed on the breathable sheet body communicates with the substrate through the holes, so that a fixing effect is obtained. Therefore, the number of fixtures can be reduced.
[0015]
When a fiber reinforced resin layer is provided on a part of the surface of the breathable sheet body and a fixing tool is driven and fixed onto the base from above the fiber reinforced resin layer, the fixing tool, the fiber reinforced resin layer, and the air permeability The waterproof finish structure according to claim 1 is obtained by forming the fiber reinforced resin layer in a state of covering the sheet body.
Further, when adopting a construction method in which a fiber reinforced resin layer is provided on the entire surface of the breathable sheet body and the fixing tool is driven and fixed onto the base from above the fiber reinforced resin layer, at least the upper part of the fixing tool is further fiber-reinforced. By providing the reinforced resin layer, the waterproof finish structure of claim 2 can be obtained.
Top coats such as acrylic resin-based paints, acrylic / silicone resin-based paints, acrylic / urethane resin-based paints, and unsaturated polyester resin-based paints are applied to improve the surface finish and weather resistance. May be.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Example 1
Breathability of a non-woven fabric processed from polyester fiber with a basis weight of 180 g / m ^{2 on} a concrete floor with a moisture content of 9.0% after 10 days of casting and laminated with a soft vinyl chloride resin film with a thickness of 0.3 mm After placing the sheet body, a glass fiber mat having a basis weight of 450 g / m ² is placed at a proper 30 cm square of the breathable sheet body, and then an unsaturated polyester resin (Aika Industry Co., Ltd. Ace JE-2000) to 1.5 k g / m ² applied to penetrate to the glass fiber mat to form a fiber-reinforced resin layer is cured. Next, after fixing a disk-shaped fixing tool having a diameter of 60 mm from the fiber reinforced resin layer to the concrete floor with an anchor having a length of 60 mm , the surface of the breathable sheet body not provided with the fiber reinforced resin layer and the fixing A fiber reinforced resin layer was formed on the tool in the same manner as described above, and an unsaturated polyester resin (Aika Kogyo Co., Ltd., Jolies JE-2080) blended with a curing agent as a top coat was 0.4 kg / m ^2. A waterproof finish structure was obtained by application. One year after the construction, no abnormality was observed with respect to the swelling and waterproofing of the waterproof layer.
[0017]
Example 2
Breathability of a non-woven fabric processed from polyester fiber with a basis weight of 180 g / m ^{2 and} a 0.3- mm- thick soft vinyl chloride resin film laminated on a concrete floor with a moisture content of 9.1% after 10 days of casting. After placing a sheet body, placing a glass fiber mat with a basis weight of 450 g / m ^{2 on} the entire surface of the breathable sheet body, an unsaturated polyester resin blended with a curing agent (Aika Kogyo Co., Ltd. Jolieth JE-2000) the 1.5 k g / m ² applied to penetrate to the glass fiber mat to form a fiber-reinforced resin layer is cured. Next, after fixing a disk-shaped fixture having a diameter of 60 mm from the fiber-reinforced resin layer to the concrete floor with an anchor having a length of 60 mm , a fiber-reinforced resin layer is formed on the fixture in the same manner as described above. Furthermore, a waterproof finish structure was obtained by applying 0.4 kg / m ^{2 of} an unsaturated polyester resin (Aika Kogyo Co., Ltd. Joliece JE-2080) blended with a curing agent as a top coat. One year after the construction, no abnormality was observed with respect to the swelling and waterproofing of the waterproof layer.
[0018]
Example 3
The floor of Example 3 was finished by carrying out the same construction as Example 1 on a urethane resin waterproofed floor 10 years after the construction (the undried state between the foundation and the waterproof layer). One year after the construction, no abnormality was observed with respect to the swelling and waterproofing of the waterproof layer.
[0019]
Comparative Example 1
After applying 0.2 kg / m ² of urethane resin primer (Aika Kogyo Co., Ltd. JU-1270) to the same floor used in Example 1, and drying it, urethane resin (Aika Kogyo Co., Ltd. Jolly Seal JW) -41) was applied at ² kg / m ² to finish a waterproof resin floor. After 30 days of construction, the floor surface condition and presence / absence of abnormality were confirmed.
[0020]
Comparative Example 2
Unsaturated polyester resin in which 0.2 kg / m ² of urethane resin primer (Aika Kogyo Co., Ltd. JU-1270) was applied to the same floor as used in Example 1, dried, and then mixed with a curing agent. (Aika Kogyo Co., Ltd. Jolieth JE-2000) is applied at 0.5 kg / m ² , and a glass fiber mat having a basis weight of 450 g / m ² is immediately applied. Furthermore, 1.0 kg / m ^{2 of} an unsaturated polyester resin (Aika Kogyo Co., Ltd. Jolieth JE-2000) blended with a curing agent was applied to form a waterproof layer. Next, 0.4 kg / m ^{2 of} an unsaturated polyester resin (Aika Kogyo Co., Ltd. Jolieth JE-2080) blended with a curing agent as a top coat was applied.
One year after the construction, the waterproof layer floated and water was found to be accumulated between the base and the fiber reinforced resin layer.
[0021]
【The invention's effect】
Conventionally, because there is a problem that it can not be constructed because the moisture content of the foundation is high, or it can not be constructed unless the existing floor is removed, the waterproof finishing method according to the present invention is the foundation. Since the water vapor that volatilizes is released to the outside through the breathable sheet body, there is an effect that the construction can be performed even if the moisture content of the base is high. Moreover, since it can construct on the existing resin waterproofing etc. without removing the foundation, it can be constructed immediately without being restricted by construction properties and construction conditions.
In the waterproof finish structure of the present invention, a fiber reinforced resin layer is provided via a breathable sheet body, and the base and the fiber reinforced resin layer are formed of a breathable sheet body by a fixture driven in a limited place. The waterproof layer and the base are loosely fixed because of the structure connected through the cable, and even if a dimensional change occurs between the fiber reinforced resin layer and the base, stress is generated between the two. There will be no damage to the waterproof structure and no peeling will occur.
In particular, when the hole provided in the fiber reinforced resin layer is set larger than the shaft diameter of the fixture and the gap between them is filled with an elastic sealing material or the like, the fiber reinforced resin layer and the base Since the structure is gently connected, the stress generated due to the connection between the fiber reinforced resin layer and the substrate is greatly buffered, and the waterproof structure can withstand long-term use.
In addition, when a breathable sheet body provided with holes is used, the resin used for the construction of the fiber reinforced resin layer communicates to the substrate surface through the holes. A fixed effect is obtained.
[0022]
[Brief description of the drawings]
FIG. 1 shows a breathable sheet body (2) disposed on a substrate (1), a fiber reinforced resin layer (3) applied on the breathable sheet body (2), and the substrate ( The fixing device (5) driven into 1) was applied to the breathable sheet body (2) where the fiber reinforced resin layer was not formed so as to cover the fiber reinforced resin layer (4) and the fixing device (5). The fragmentary sectional view of the waterproof finish structure of one Example finished from the fiber reinforced resin layer (6).
[Fig. 2] A fiber reinforced resin layer (3) is applied to the entire surface of a breathable sheet body (2) disposed on a substrate (1), and a fixture (5) is driven into the upper surface of the fixture (5). The fragmentary sectional view of the waterproof finish structure of 1 Example by which the fiber reinforced resin layer (4) was formed in.
[0023]
[Explanation of sign]
DESCRIPTION OF SYMBOLS 1 Base body 2 Breathable sheet body 3, 4, 6 Fiber reinforced resin layer 5 Fixing tool

Claims (4)

An unsaturated polyester resin fiber reinforced resin layer, wherein a breathable sheet body having a non-breathable layer laminated on at least one side of a fibrous base material is disposed on the surface of the substrate, and is constructed on a partial surface of the breathable sheet body , Fixing device driven into the substrate from the unsaturated polyester resin fiber reinforced resin layer, at least forming the surface portion of the breathable sheet body where the unsaturated polyester resin fiber reinforced resin layer has not been previously applied and covering the fixing device A waterproof finish structure characterized by being finished with an unsaturated polyester resin fiber reinforced resin layer. Breathable sheet material on at least one side air-impermeable layer is laminated to fibrous substrate is disposed on the surface of the substrate, the entire surface is the construction unsaturated polyester resin fiber-reinforced resin layer of the vent temper sheet, said unsaturated A waterproof finishing structure characterized in that it is finished from a fixing device driven into the substrate from above the polyester resin fiber reinforced resin layer and at least an unsaturated polyester resin fiber reinforced resin layer formed so as to cover the fixing device. After arranging a breathable sheet body in which a non-breathable layer is laminated on at least one side of the fibrous base material on the surface of the base , an unsaturated polyester resin fiber reinforced resin layer is formed on a part of the breathable sheet body , After implanted fixture to the base member from the top of the unsaturated polyester resin fiber-reinforced resin layer, at least above on the surface as well as fasteners vent temper sheet which has not been the construction of an unsaturated polyester resin fiber-reinforced resin layer And forming a unsaturated polyester resin fiber reinforced resin layer. After breathable sheet material non-breathable layer is laminated on at least one surface of the fibrous base material was placed on the surface of the substrate, to form an unsaturated polyester resin fiber-reinforced resin layer over the entire surface of the vent temper sheet, the non After implanted fixture to the base member from the top of the saturated polyester resin fiber-reinforced resin layer, a waterproof finish method characterized by forming at least covering the fixture unsaturated polyester resin fiber-reinforced resin layer.

Images