KR100366339B1 - Frp waterproof liquid and it's using method - Google Patents

Abstract

The present invention has been devised for the purpose of newly presenting a FRP waterproofing liquid and a new waterproofing treatment method using the same.

To this end, the present invention is a wire mesh in the concrete body (1) requiring a FRP waterproofing solution and waterproofing, which is a liquid FRP and the stone powder processed into fine powder 10: 4-10: 6 by mixing the weight ratio in a sealed container (2) the FRP, characterized in that the wire mesh (2) is uniformly applied to the FRP waterproofing liquid in the state fixed to the concrete body (1) using an anchor bolt (3) to form a waterproof layer (4) A new method of waterproofing using waterproofing liquid is proposed.

FRP waterproofing liquid according to the present invention is mixed with stone powder, there is no flow down during the construction of the wall, there is no surface slipping by the stone powder, the construction method is simple, anyone can easily install, the price is low, waterproof treatment according to the present invention The method is excellent in the integration with concrete by anchor bolts and wire mesh, there is no separation phenomenon of concrete and waterproof layer after construction has a continuous waterproof effect, and has the effect of reducing the maintenance cost required for maintenance.

Description

FRP waterproofing liquid and waterproofing method using same {FRP WATERPROOF LIQUID AND IT'S USING METHOD}

The present invention relates to a waterproofing solution that can be used for the waterproofing of various structures and a waterproofing method using the same, and more particularly, to a waterproofing solution stabilized by mixing FRP and stone powder and a method for performing waterproofing of the structure using the waterproofing solution. It is about.

Due to its moisture permeability, concrete structures are required to be waterproofed to the outside parts of the structure such as the outer wall of the structure or the upper surface of the slab.

Conventionally, waterproofing liquids having various properties are known for use in waterproofing treatments, and various types of waterproofing liquids such as polyurethane, epoxy, and asphalting liquids are used depending on the purpose of use. However, these waterproofing liquids have one or more defects among various conditions required as waterproofing agents. Because it contains elements, the range of use is very limited according to the characteristics of the structure, the overall waterproof performance is not reached to the satisfactory level, and the workability is poor, which increases the cost of construction.

For example, in the case of waterproofing using asphalt liquid, the impact resistance, pressure resistance, and fire resistance are weak, and after a certain period of time, the coating should be made in a non-exposed form such as forming a surface layer by cracking due to hardening. The waterproofing agent of the system is vulnerable to cracks after construction due to excessive hardness and weak bonding strength with cement, so that the floating phenomenon occurs continuously after construction.These waterproofing agents are used for non-woven fabrics in the entire waterproofing work except for joints and joints of structures. The construction is made in the form of a lot of manpower and time according to the construction, in the case of waterproofing the vertical surface, such as waterproofing the wall has a very difficult problem of fixing and attaching the sheet.

In order to solve such a problem, the waterproofing method of the concrete structure using the FRP (Patent Application 2000-0009728) has been presented in advance, this is a method of covering the wire mesh with FRP while fixing the wire mesh with anchor bolts on the concrete floor It can be said that it is configured to exert continuous waterproof effect by solving the lifting phenomenon caused by separation of concrete after construction, which is a disadvantage of FRP, which is a synthetic resin system.

However, the waterproofing method implemented by the above method uses a liquid FRP, so the liquid FRP flows down during the application of the FRP during the waterproofing work on the vertical surface such as a wall, so that several repeated coating operations must be performed to prevent this. There was a problem, the surface was very slippery after construction, there was a problem that the construction cost is increased by using a large amount of expensive FRP.

In addition, in order to increase the impact resistance of the FRP waterproofing layer to cover or spread the glass fiber to form a FRP coating layer has a disadvantage that the strength decreases due to the generation of bubbles and the construction surface is not smooth.

The present invention can be effectively used in the construction of the wall because there is no flow down, and the waterproofing having an effective and stable waterproofing effect by using the FRP waterproofing liquid and the FRP waterproofing liquid to prevent the surface slip and exhibit sufficient resistance to moving load or impact It is intended to suggest the treatment method.

To this end, the present invention proposes a waterproofing method for applying a waterproofing solution in a state in which a wire mesh and anchor bolts are installed in a waterproofing solution and a waterproofing portion having a mixed stone powder in FRP.

Hereinafter, the present invention will be described in detail with reference to the following examples.

1 is a structural diagram of a waterproof layer according to the present invention

Figure 2 is an enlarged view of the anchor bolt

Figure 3 is a plan view of the anchor bolt fixed

* Description of the major symbols

1.Concrete 2.Wire Mesh 3.Anchor Bolt

4.waterproof layer

The FRP waterproofing liquid according to the present invention has a structure in which the liquid FRP and the stone powder processed into fine powder are mixed in a weight ratio of 10: 4-10: 6 and sealed in an airtight container.

Stone powder is added to reinforce the FRP to improve pressure resistance and impact resistance, to exhibit good fire resistance, and to improve the workability of the waterproofing liquid by appropriate dough.

The content of stone powder is a factor that affects the properties of the waterproofing liquid. If the amount is insufficient, the wall workability decreases. If the amount is too large, the fluidity of the waterproofing liquid decreases, the adhesion to concrete decreases, and the internal voids due to the fluidity decrease during the construction process. There is a possibility that this may occur, it has a characteristic that the waterproof performance is reduced by the generation of bubbles.

Therefore, the most preferable addition amount of stone powder is 10: 4-10: 6 in weight ratio with respect to FRP liquid, and the content of the stone powder is slightly increased in the construction site where wall construction or pressure resistance is required within the above range, and the flexibility of planar construction or waterproof layer For this required application, the content of ingredients should be slightly lowered.

The waterproofing solution mixed with FRP and stone powder is placed in a drum or other airtight container and is packaged to keep the liquid without solidification even during long-term storage or movement. During storage, precipitation of stone powder occurs due to the specific gravity difference between stone powder and FRP. Shake the container three or four times to remix it so it is not an obstacle to use.

The above-mentioned waterproofing solution is very inexpensive because it is mixed with stone powder at the price of only 1/10 of the FRP, and since it is self-cured by the stone powder after construction, complicated treatment procedures such as controlling the amount of curing agent input even for those who have no experience in waterproofing FRP are required It can be easily handled without strength, and the strength and abrasion resistance are enhanced by the reinforcing effect of the stone powder, and excessive slippage of the surface is prevented, and the adsorption property is enhanced when the surface is treated by gel coating or painting.

In the case of the partial waterproof construction of corners or joints of the structure, the waterproofing liquid according to the above configuration is simply covered by the waterproofing construction, and in the case of full-scale construction, effective construction is achieved by the following method. .

The general embodiment of the present invention is made of a method of forming an FRP coating layer by laying a wire mesh on a concrete body such as an inner wall of a slab or a water tank, and anchoring bolts at regular intervals between the wire meshes and then applying a waterproofing solution. .

1 illustrates a structure of a waterproof layer formed by the waterproofing method according to the present invention as described above. The waterproofing method according to the present invention lays a wire mesh 2 on a concrete body 1 requiring waterproofing. The wire mesh 2 has a structure in which the waterproofing layer 4 is formed by uniformly applying the above-mentioned waterproofing liquid in a state of being fixed to the concrete body 1 using the anchor bolt 3.

By the above configuration, the waterproofing layer and the concrete, which are heterogeneous materials, are bound by the wire mesh 2 and the anchor bolt 3.

In the above, the anchor bolt 2 is a bolt having a head having a diameter (d) of about 2 mm and a height (h) of about 15 mm, as shown in FIG. 2, and is embedded in concrete using a machine such as a gunship. By adjusting the penetration pressure so that the depth (h1) is in the range of 12-13mm, the bolt head (h2) exposed from the concrete surface protrudes in the range of 1-3mm, and some parts are inserted deeply to fix the wire mesh.

The spacing L1 and L2 of each anchor bolt 3 is such that 200-300 mm is maintained as shown in FIG.

The waterproof layer 4 is formed to a height of about 2-4mm so that the head of the anchor bolt can be covered.

The structure of the anchor bolt or the waterproof treatment as exemplified above may be implemented in various standards and structures according to the shape of the structure. In the case of installing a heavy material on the upper part of a slab or a large water tank largely affected by hydraulic pressure, The overall thickness and the anchor bolt size and spacing can be adjusted accordingly.

Waterproofing method by the above configuration prevents the separation of the FRP waterproofing liquid and concrete, which is a dissimilar material after construction, by anchor bolts and wire meshes, and the anchor bolts and wire meshes act as a frame structure of the FRP waterproofing layer to mitigate expansion and contraction according to the change in external temperature It maintains the integrity with the concrete and strengthens the pressure resistance and impact resistance which are disadvantages of the FRP waterproof layer.

In addition, since the FRP waterproofing solution contains stone powder, it has a very good workability such that a smooth surface can be obtained by only one or two coating operations without flowing down during waterproofing of the wall.

FRP waterproofing liquid according to the present invention is mixed with stone powder, there is no flow down during the construction of the wall, there is no surface slipping by stone powder, not only exhibits sufficient resistance to movement load or impact, but also has excellent waterproofness and simple construction method. Anyone can easily construct, and the price is low and the workability is very good, thereby reducing the cost of waterproofing construction.

In addition, the reinforcement by the stone powder prevents the deformation of fire or direct sunlight and exhibits sufficient strength even if the thickness is thin, so that the waterproof layer can be constructed thinly, thereby improving the space utilization.

The waterproofing method using the FRP waterproofing solution is excellent in unity with concrete by anchor bolts and wire meshes, there is no separation phenomenon between concrete and waterproof layer after construction, and it has continuous waterproofing effect and can reduce the maintenance cost required for maintenance. Has the effect.

Claims (2)

FRP waterproof liquid, characterized in that the mixture of the liquid powder FRP and fine powder processed stone powder by weight ratio 10: 4-10: 6 and sealed in an airtight container. The wire mesh (2) is laid on the concrete body (1) to be waterproofed, and the wire mesh (2) is fixed to the concrete body (1) using an anchor bolt (3) in a uniform state of the FRP waterproofing liquid of claim 1 Waterproofing method using the FRP waterproofing liquid, characterized in that the coating to form a waterproof layer (4).