KR20040069302A - The elastic floor material, its manufacturing process and the constructing process of the elastic floor using it - Google Patents

Abstract

PURPOSE: A manufacturing method for an elastic flooring is provided to improve durability and elasticity of an elastic floor using synthetic rubber. CONSTITUTION: The manufacturing method for an elastic flooring comprises the steps of: sorting synthetic rubber and crushing to have the grain size of 1¯4.5 mm by a cutter mill using unpolluted chemicals; putting the crushed matters of the synthetic rubber, then mixing evenly in a mixer; and adding 15¯25 wt% urethane binder against 7¯85 wt% crushed synthetic rubber, then re-mixing.

Description

The elastic floor material, its manufacturing method and the construction method of the elastic floor using the same {The elastic floor material, its manufacturing process and the constructing process of the elastic floor using it}

The present invention relates to an elastic flooring material, a method of manufacturing the same, and a method of constructing an elastic floor using the elastic flooring material, and more specifically, a multi-purpose stadium such as a running track, a basketball court, a football court, a volleyball court, a tennis court, and a jogging track or bicycle. In order to improve the elasticity and durability of the elastic bottom surface that forms the impact absorbing floor surface of the road pedestrian path, 75 to 85% by weight of synthetic resin rubber shredded to a particle size of 1 to 4.5mm and 15 to 25% by weight of the urethane-based binder are mixed and stirred. The present invention relates to a method for manufacturing an elastic floor material and a method of manufacturing the same, and a method of continuously manufacturing the elastic floor material at the same time.

In the synthetic resin elastic flooring material manufactured by using the conventional synthetic rubber, the particle size distribution of rubber chip particles is irregular, and the adhesion force decreases when bonding with the binder, causing cracks between the rubber chip particles. In some cases, there may be a part where the jungle phenomenon occurs, or a part where rubber chip particles are distributed too densely, thereby causing a decrease in elasticity.

In addition, the above-mentioned synthetic resin elastic flooring material was constructed by a simple process of laying the elastic flooring material after curing the binder after the road or floor surface to be mainly constructed in the past, and the waste rubber used for the production of the synthetic resin elastic flooring material is discarded. Since the durability is weakened by long time use, the simple construction of the elastic flooring material as described above is often cracked and the elastic force is lowered or the tensile strength is decreased, so that the floor surface of the synthetic resin elastic flooring material is often damaged. .

The present invention is to solve such a conventional problem, and an object of the present invention is to provide a synthetic resin elastic flooring material manufactured to improve the elasticity by making the adhesion between the rubber chip particles and the binder used in the synthetic resin elastic flooring material, The present invention provides a method for constructing a variety of elastic floors using synthetic resin elastic flooring material to reinforce the weak durability and elasticity of synthetic resin elastic flooring material using synthetic rubber.

The synthetic resin elastic flooring material of the present invention for achieving the above object is constructed on a multi-purpose ballpark, such as a running track, basketball court, football court, volleyball court, tennis court or the like for exclusive use of shock absorbers such as bicycle roads, walkways, and synthetic rubber such as waste tires. It is manufactured by mixing and mixing the synthetic resin rubber chip and urethane binder, which are finely pulverized using a cutter mill. 75 to 85% by weight of synthetic resin rubber shredded to a particle size of 1 to 4.5mm, and 15 to 25% by weight of urethane binder. Is mixed and stirred.

And the present invention relates to the construction method of the above-mentioned synthetic resin elastic floor material, the bottom treatment step of the floor to be elastic floor construction, the undercoat binder step, the installation step of the synthetic resin elastic floor material, the sealing step of chip pore finishing work, liquid urethane coating step, It consists of top coating step, line marking step and curing step.

First, the manufacturing method of the synthetic resin elastic flooring material of the present invention will be described in detail.

The synthetic rubber used for the elastic flooring of synthetic resin is selected to use non-polluting chemicals during the original production so that there is no noticeable discoloration in daylight, and to have no slip and shine on the surface to facilitate adhesion of the binder when stirring. Synthetic resin rubber chip obtained by pulverizing the synthetic rubber selected under the above conditions is configured to have a particle size distribution as shown in Table 1 in the particle size range of 1 ~ 4.5mm to increase the elasticity according to the porosity and the adhesiveness with the binder when stirring.

Chip size (mm) 1.0 or less 1.0 1.4 2.0 2.5 3.15 3.55 4.0 4.5 Weight ratio (%) 0.02 to 0.05 0.40 to 0.95 10.30-11.60 29.20-30.30 42.80-46.00 10.00-11.80 1.90-2.30 0.10 to 0.30 0.00 -0.20

As the binder, a urethane-based binder having good elasticity and adhesiveness is used.

The synthetic resin rubber chip and the urethane-based binder are mixed using a cylindrical low speed stirrer, but the mixture is stirred at 75 to 85% by weight of the synthetic resin rubber chip and 15 to 25% by weight of the urethane-based binder. After mixing, it is preferable to add a urethane-based binder and mix uniformly for 3 to 5 minutes.

Using the synthetic resin elastic flooring material of the present invention prepared as described above will be described in detail the method of constructing the elastic floor for shock absorption, such as running tracks, basketball courts, tennis courts, volleyball courts, foot volleyball courts and jogging tracks, footpaths.

The method of constructing the elastic floor according to the present invention starts from the bottom treatment step. The bottom treatment step is to clean and dry the bottom surface on which the synthetic resin elastic flooring material is to be installed, and then line the surface horizontally to sink more than 6 mm. After finding the parts, patch the recessed parts with the above-mentioned synthetic resin elastic flooring material and dry it, and find the weak part on the floor surface of concrete or asphalt concrete and reinforce it to apply thin layer with epoxy. Make it easy.

After the bottom treatment step, the binder step is continued to apply a thin layer of binder to the concrete surface using a roller or spray. This is to make the surface state uniform and even.

The elastic flooring material laying step of laying the synthetic resin elastic flooring material according to the present invention is followed before the binder applied in the bottom coat step is cured. The elastic flooring material is laid before the hard binder is cured to enhance the adhesiveness between the elastic flooring material and the concrete.

The elastic floor laying step is to place a mixture of a synthetic resin rubber chip and a urethane-based binder directly at the construction site using a rubber paving machine or a hand tool within the pot life to take into account the curing time of the binder. Constructed by cutting to 50m each, and the connecting portion of the end is cut the elastic layer at a 45 degree angle, the binder is applied and then connected. And by adjusting the stirring interval of the synthetic rubber chip and the urethane-based binder so that the above connection construction is made without interruption.

Then, the heat roller is repeatedly moved a plurality of times to the installation surface of the elastic flooring material so that a sufficient voltage is formed so that a flat surface is formed.

In addition, after the one-time straight construction through the above process to check the flatness using a horizontal bar when the correction is necessary to use a stainless trowel moistened with light oil or heated using a torch and flattening.

The elastic layer, which has been laid in the above process, is cured by curing at least 24 hours or more, and then proceeds to the next sealing step.

The sealing step is to prevent the cracks by filling the voids between the rubber chip particles by finishing the sealing material in the air hole generated during the curing of the synthetic resin elastic flooring material. When the sealing material is cured, the next step is the liquid urethane coating step.

The liquid urethane coating step is to apply a liquid urethane for the waterproofing of the floor to be carried out over a second time and after the applied liquid urethane is sufficiently cured to perform the next step. Since the liquid urethane is also excellent in elasticity, it also has the effect of improving the elasticity of the construction floor at the same time.

The urethane coating step is performed by mixing the urethane resin and the pigment on the rough surface of the floor to apply the color coating. The synthetic resin elastic flooring material of the present invention uses rubber chip particles made of synthetic resin, and its color is mainly black, so the appearance is not good and the floor can not be expressed in various colors. Top coated in color. When the urethane resin mixed with the pigment used for the top coating after construction is sufficiently cured, the next step is the line marking step.

In the above line marking step, the marking is performed on the floor surface of the construction according to the purpose of construction, marking marking lines or patterns for each purpose of use, such as a running track, a basketball court, a foot ball court, a tennis court, a bicycle road, and a pedestrian road. Done.

Lastly, people are prevented from entering the city plant and have a curing stage for more than two days.

The multi-purpose ballparks such as tracks, basketball courts, foot volleyball courts and tennis courts, or the elastic floor surfaces for shock absorption such as bicycle paths and pedestrian paths, which are constructed in this way, are additionally sealed and liquid urethane coated on the floors of elastic flooring materials. By doing so, durability and elasticity are improved.

As described in detail above, according to the present invention, the synthetic resin rubber chip and the binder are well adhered, thereby providing the synthetic resin elastic flooring material having good elasticity. In addition, by performing the sealing operation and the second liquid urethane work on the installation surface of the synthetic resin elastic flooring material, there is also an effect of reinforcing and increasing the durability and elasticity of the elastic floor which is weakened by the use of synthetic resin.

Claims (4)

An elastic flooring material comprising 75 to 85% by weight of crushed synthetic resin and 15 to 25% by weight of a urethane-based binder mixed with a particle size of 1 to 4.5 mm. Using non-polluting chemicals and selecting a synthetic resin without slipping and gliding on the surface and pulverizing it to a particle size of 1 to 4.5 mm with a cutter mill; Putting the pulverized product of the synthetic resin into a mixer to mix evenly; And mixing 15 to 25% by weight of the urethane-based binder with respect to 75 to 85% by weight of the synthetic rubber pulverized product. Cleaning and drying the bottom surface to be elastic floor construction, patching work and reinforcement work for the lower leg; Bado binder step of applying a thin binder on the concrete surface; Elastic floor laying step of laying within the pot life while manufacturing the elastic floor of claim 2 in the construction site; Sealing step of closing the sealing material in the air hole formed in the installation surface of the elastic flooring material; A liquid urethane coating step of applying a liquid urethane over a secondary; A top coating step of coating a color by mixing a urethane resin and a pigment and coating the surface; A line marking step of marking a cover line or a pattern according to the construction purpose; Construction method of the elastic flooring comprising a curing step of curing a certain time after the above steps. According to claim 3, The elastic floor laying step is constructed by cutting 40 ~ 50m each in consideration of the curing time of the binder, the connecting portion of the end of the elastic floor cut the elastic layer at a 45-degree angle after the binder coating and connecting construction Way.