Finishing method for concrete floor for urban sport

Abstract

To provide a finishing method for a concrete floor for urban sports, capable of suppressing wear and dissolution and runoff of cement material on a surface of a concrete floor and of maintaining a condition suitable for the urban sports for a long period of time, even in an environment where the urban sports are performed.SOLUTION: A finishing method for a concrete floor for urban sports includes: surface strengthening material-applying step S4 of applying a permeable surface strengthening material to a surface of a concrete floor; surface strengthening material-removing step S5 of removing the permeable surface strengthening material remaining on the surface of the concrete floor; and water-absorption inhibitor-applying step S6 of applying a permeable water-absorption inhibitor to the surface of the concrete floor.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This invention relates to a finishing method for concrete floors used in outdoor urban sports such as skateboarding, BMX (freestyle), and in-line skating. [Background technology]

[0002] Conventional concrete floor finishing involves pouring the concrete, allowing it to cure for a certain period of time, and then using it as is. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4338908 Summary of the Invention [Problem to be solved by the invention]

[0004] Concrete floors used for outdoor urban sports such as skateboarding, BMX (freestyle), and inline skating are prone to surface wear from skateboarding and other activities. In addition, because they are held outdoors, concrete floors are susceptible to cement dissolution and washout due to rain.

[0005] Therefore, if the concrete is poured, cured, and then used as is, as is the case with typical concrete floor finishes, the concrete floor will deteriorate significantly within 3 to 5 years.

[0006] As a result of deterioration, for example, unevenness or exposed aggregate may appear on the surface of the concrete floor, causing problems for urban sports enthusiasts, such as making it difficult to skate, making falls more likely, and increasing the risk of serious injury.

[0007] A concrete floor with this problem will be unsuitable for urban sports.

[0008] To address these issues, even in urban sports environments, a permeable surface reinforcement material is applied to the surface of the concrete floor to prevent wear on the concrete floor and the dissolution and outflow of cement, and then a permeable water-absorption inhibitor is applied to the surface of the concrete floor. However, if the permeable surface reinforcement material remains on the surface of the concrete floor, the coefficient of friction of the concrete floor surface decreases, making the wheels more slippery than necessary. In addition, there is a problem that the penetration of the permeable water-absorption inhibitor may be hindered in areas where the permeable surface reinforcement material remains on the surface of the concrete floor.

[0009] Therefore, the present invention aims to provide a finishing method for concrete floors for urban sports that can suppress wear on the surface of the concrete floor and the dissolution and outflow of cement, even in environments where urban sports are played, and prevent the coefficient of friction of the concrete floor surface from decreasing, making wheels more slippery than necessary, thereby maintaining a condition suitable for urban sports for a long period of time. [Means for solving the problem]

[0010] The finishing method for urban sports concrete floors of claim 1 of the present invention comprises a surface reinforcement application step of applying a permeable surface reinforcement material to the surface of the concrete floor, a surface reinforcement removal step of removing the permeable surface reinforcement material remaining on the surface of the concrete floor, and a water absorption inhibitor application step of applying a permeable water absorption inhibitor to the surface of the concrete floor.

[0011] According to the finishing method for concrete floors for urban sports in claim 1, the surface reinforcing material application process fills the voids on the surface of the concrete floor with crystals to make it denser, thereby improving wear resistance. In addition, the water absorption inhibitor application process gives the surface a water-repellent function, minimizing dissolution and washout due to moisture from rain and snow, thereby extending the service life.

[0012] If permeable surface reinforcement material remains on the surface of a concrete floor, the coefficient of friction of the concrete floor surface will decrease, making wheels more slippery than necessary. Also, areas on the surface of the concrete floor where permeable surface reinforcement material remains may prevent the penetration of permeable water absorption suppressing material.

[0013] According to the finishing method for urban sports concrete floors of claim 1, by carrying out a surface reinforcement removal process after the surface reinforcement application process, it is possible to suppress a decrease in the coefficient of friction on the surface of the concrete floor, and to prevent the occurrence of areas where the penetrating water absorption inhibitor has not sufficiently penetrated.

[0014] The finishing method for urban concrete floors for sports according to claim 2 of the present invention is the finishing method for urban concrete floors for sports according to claim 1, which further includes a surface grinding step of grinding the surface of the concrete floor before the surface reinforcing material application step.

[0015] According to the finishing method for urban sports concrete floors of claim 2, in addition to the same effects as claim 1, weak parts can be removed in advance by a surface grinding process on the surface of a newly poured or existing concrete floor.

[0016] The finishing method for urban sports concrete floors of claim 3 of the present invention is the finishing method for urban sports concrete floors of claim 2, which includes a surface polishing step for polishing the surface of the concrete floor between the surface grinding step and the surface reinforcing material application step.

[0017] If there are minute irregularities on the surface of a concrete floor, the application of the surface strengthening material and water absorption inhibitor may become uneven. According to the finishing method for urban sports concrete floors of claim 3, in addition to the same effects as claim 2, the surface polishing process can remove minute irregularities on the surface of newly poured or existing concrete floors, making them smooth. This allows the surface strengthening material and water absorption inhibitor to be applied evenly.

[0018] The finishing method for urban sports concrete floors of the present invention, in the finishing method for urban sports concrete floors of claim 1, may have a joint cutting step in which joints are cut in the concrete floor before the surface reinforcement material application step, and may have a joint filling step in which filler is filled into the joints between the joint cutting step and the surface reinforcement material application step, or after the water absorption inhibitor application step.

[0019] Outdoors, cracks occur in concrete due to expansion and contraction caused by changes in the temperature. These cracks significantly affect the sliding experience, especially for skateboards with small wheel radii. Furthermore, concrete floors typically have joints to prevent cracks, but these can cause skateboarders or inline skaters to trip and fall due to unevenness in the joints. The finishing method for concrete floors for urban sports of the present invention achieves the same effects as claim 1, while also suppressing cracks through a joint cutting process. Furthermore, the finishing method for concrete floors for urban sports of claim 4 includes a joint filling process that fills the joints, eliminating any unevenness between the concrete floor surface and the joints and making them flush with the concrete floor surface. This prevents deterioration and damage to the joint edges and also suppresses deterioration of the sliding experience, especially for skateboards with small wheel radii. [Effects of the Invention]

[0020] The invention of any one of claims 1 to 3 can suppress wear on the surface of the concrete floor and the dissolution and outflow of cement, even in an environment where urban sports are played, and can maintain a condition suitable for urban sports for a long period of time. [Brief explanation of the drawings]

[0021] [Figure 1] 1 is a flowchart of a finishing method for an urban sports concrete floor according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, a description will be given based on the flowchart of a finishing method for an urban sports concrete floor according to one embodiment of the present invention shown in FIG.

[0023] In the joint cutting step S1, joints such as cutting joints, pour joints, expansion joints, and induction joints are cut as needed on the existing or newly constructed concrete floor surface.

[0024] Next, in the joint filling step S2, the joints formed in the joint cutting step S1 are filled with a joint filler. For example, the rapid-setting polyurea resin concrete joint filler "SSP-100" is used as the joint filler. In the joint filling step, the joints are filled to eliminate any unevenness between the surface of the concrete floor and the joints, and the top surface of the hardened joint filler filled into the joints is flush with the surface of the concrete floor.

[0025] Next, in the surface grinding process S3, the surface of the existing or new concrete floor is ground. Grinding is carried out in one or two stages depending on the construction area and other conditions. When grinding is carried out in two stages, the grinder used in the second stage has a larger grit size than the grinder used in the first stage. The surface grinding process S3 may not be necessary depending on the condition of the concrete floor surface.

[0026] Next, in the surface polishing step S4, the surface of the existing or new concrete floor is polished. Polishing is carried out in one or two stages depending on the construction area and other conditions. When polishing is carried out in two stages, the polishing disc used in the second stage has a larger grit size than the polishing disc used in the first stage. The surface polishing step S4 may not be necessary depending on the condition of the concrete floor surface.

[0027] Next, in the surface strengthening material application step S5, the sodium silicate-based penetrating surface strengthening material "SEALHARD" is applied to the surface of the concrete floor. The amount of application is approximately 5.0 to 19.9 m2 / L, and the material is applied until it penetrates. After application, it is spread evenly with a mop or similar tool to allow it to penetrate. The penetration time for "SEALHARD" (registered trademark) is approximately 1 to 2 hours.

[0028] Next, in the surface reinforcement removal step S6, any permeable surface reinforcement remaining on the surface of the concrete floor is removed. The permeable surface reinforcement is removed by immediately vacuuming up the surface of the concrete floor while cleaning it. The surface of the concrete floor is then dried. Drying is carried out for about 4 hours to 1 day to confirm that no permeable surface reinforcement remains.

[0029] Next, in the water absorption inhibitor application process S7, the silane / siloxane-based penetrating water absorption inhibitor "Aquapel Plus" is applied to the surface of the concrete floor. The amount to be applied is approximately 15 to 21 m2 / L, and the material is applied until it is absorbed. After application, the material is spread evenly with a mop or similar tool to allow it to penetrate. Once the application of the penetrating water absorption inhibitor is complete, the surface of the concrete floor is allowed to dry. This is done for about 1 to 2 days until the surface is completely dry.

[0030] In the above embodiment, the joint filling step S2 is performed after the joint cutting step S1, but the present invention is not limited to this. The joint filling step may be performed after the water absorption suppressing material application step.

[0031] In the above embodiment, the rapid-setting polyurea resin concrete joint filler "SSP-100" is used in the joint filling step S2, but the present invention is not limited to this. The joint filling step may use a joint filler other than the rapid-setting polyurea resin concrete joint filler "SSP-100."

[0032] In the above embodiment, the case where grinding is performed in two steps in the surface grinding step S3 and the case where polishing is performed in two steps in the surface polishing step S4 have been described, but this is not limitative. Grinding in the surface grinding step S3 and polishing in the surface polishing step S4 may be performed in three or more steps.

[0033] In the above embodiment, the case where the sodium silicate-based penetrating surface strengthening material "SEAL HARD" is applied and penetrated in the surface strengthening material application step S5 has been described, but the present invention is not limited to this. In the surface strengthening material application step, a surface strengthening material other than the sodium silicate-based penetrating surface strengthening material "SEAL HARD" may be applied.

[0034] In the above embodiment, the surface reinforcing material removal step S6 is described as a case in which the surface of the concrete floor is cleaned and immediately sucked up and dried with a vacuum, but this is not limited to this. In the surface reinforcing material removal step, other surface reinforcing material removal methods, such as the use of removal chemicals, may also be used.

[0035] In the above embodiment, the case where the silane-siloxane-based penetration-type water absorption inhibitor "Aquapel Plus" is applied and penetrated in the water absorption inhibitor application step S7 has been described, but the present invention is not limited to this. In the water absorption inhibitor application step, a water absorption inhibitor other than the silane-siloxane-based penetration-type water absorption inhibitor "Aquapel Plus" may also be applied.

Claims

1. a surface enhancement agent application step of applying a penetrating surface enhancement agent to the surface of the concrete floor; a surface enhancement agent removal step of removing the penetrating surface enhancement agent remaining on the surface of the concrete floor; A finishing method for concrete floors for urban sports, comprising a water absorption inhibitor application step of applying a penetrating water absorption inhibitor to the surface of the concrete floor.

2. 2. The finishing method for urban sports concrete floors according to claim 1, further comprising a surface grinding step of grinding the surface of the concrete floor before the surface strengthening agent application step.

3. 3. The finishing method for urban sports concrete floors according to claim 2, further comprising a surface polishing step for polishing the surface of the concrete floor between the surface grinding step and the surface strengthening agent application step.

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