KR100610158B1 - Paving method of elastic-road having hydrophobic - Google Patents

Abstract

The present invention relates to a pavement method of an elastic road having hydrophobicity, comprising: a first step of removing and cleaning foreign matter adhered to a pavement layer surface constructed of concrete or permeable concrete to be paved; A surface adhesive prepared by mixing 1 to 7 kg of water, 0.1 to 0.5 kg of a styrene-based acrylic emulsion resin, 0.01 to 0.05 kg of an aqueous coating solvent, and 0.01 kg of a dispersant is added to the surface of the base layer. A second step of forming a surface adhesive layer by spraying to a thickness of 1 to 3 mm using 10 kg; 90 ~ 100kg waste urethane chip of less than 10mm, 20 ~ 40kg of styrene-based acrylic emulsion resin, 10 ~ 20kg fine-grain recycled aggregate of # 140 (1.98mm) size of the elastic packaging material 30 ~ 50mm on top of the surface adhesive layer Rolling to a thickness to form an elastic layer; The hydrophobic coating agent is characterized in that the fourth step of forming a coating layer by coating 150g per square meter on top of the elastic layer.

According to the pavement method of a hydrophobic elastic road according to the present invention, by using a surface adhesive including a superhard cement and a styrene-based acrylic emulsion resin between the base layer and the elastic layer by strengthening the adhesion of the base layer and the elastic layer and the base layer and The separation of the elastic layer can be prevented, and by forming a coating layer having a hydrophobicity on the elastic layer to prevent the pedestrian's slipping in rainy weather there is an effect that can prevent the accident of the pedestrian in advance.

Concrete, hydrophobic coating material, waste urethane chip, fine grain recycled aggregate

Description

Paving method of elastic-road having hydrophobic

The present invention relates to a pavement method of an elastic road having hydrophobicity, and more particularly, to reconstruct fine pavement aggregate, which is construction waste, and waste urethane, which is industrial waste, to give elasticity and strength to the pavement, and to conserve resources and environmental pollution. In addition to suppressing, the surface adhesive is developed to bond and attach the existing concrete pavement and elastic pavement, which is inorganic material, to prevent separation and separation of base and elastic layers, and to show the hydrophobic function to promote safe passage of pedestrians in rainy weather. The present invention relates to a pavement method of an elastic road having hydrophobicity.

Conventional paving materials such as sidewalks, bicycle paths, park trails, and athletic roads have used concrete mixed with stone and cement, which are inorganic materials, or some color cones, pitcher cones, and asphalt concrete. However, among these, the concrete molded products have high strength and have a large impact on the ground, and concrete sidewalk blocks and color cones have weaknesses such as high hardness, heat resistance and weather resistance, but are easily damaged even by a weak impact. There was a problem that the feeling of walking is hard and the shock absorption is poor.

Proposed to solve this problem is to use a packaging material having elasticity, the conventional packaging method using a rubber elastic packaging material that is used to recycle waste tires or waste rubber as an elastic packaging material has been proposed and used, The packaging material is inferior in durability because it has different properties such as shrinkage expansion coefficient or weather resistance from the adhesive (binder), and the color was dark or monotonous.

In addition, the rubber elastic packaging material has a disadvantage in that the manufacturing process is complicated, and the smell of tires in summer.

In order to solve these problems, the proposed urethane chip is used as an elastic packaging material. Even when the urethane urethane chip is used as an elastic packaging material, separation and separation between the elastic layer and the substrate surface frequently occurs, The water film was formed in the elastic layer, so that a pedestrian or a bicycle slipped in the elastic layer, causing an accident.

The present invention has been made to solve the above problems, the present invention provides a sense of elasticity when walking using waste urethane board recycled waste urethane or recycled polyurethane, which is an industrial waste and at the same time using a surface adhesive It prevents the elastic layer from being separated, reduces the cost of re-collecting and re-installing the elastic layer, and provides a walkway that does not slip to pedestrians even in rainy weather, thereby reducing the risk of safety accidents. The purpose is to provide a paving method for the road.

Pavement method of the elastic road having hydrophobicity according to the present invention for achieving the above object, in the pavement method of the road paving the elastic pavement on the base layer constructed of concrete or pitched concrete, concrete or pitched concrete to be paved A first step of removing and cleaning the foreign matter adhering to the package base layer surface constructed with; A surface adhesive prepared by mixing 1 to 7 kg of water, 0.1 to 0.5 kg of a styrene-based acrylic emulsion resin, 0.01 to 0.05 kg of an aqueous coating solvent, and 0.01 kg of a dispersant is added to the surface of the base layer. A second step of forming a surface adhesive layer by spraying to a thickness of 1 to 3 mm using 10 kg; 90 ~ 100kg waste urethane chip of less than 10mm, 20 ~ 40kg of styrene-based acrylic emulsion resin, 10 ~ 20kg fine-grain recycled aggregate of # 140 (1.98mm) size of the elastic packaging material 30 ~ 50mm on top of the surface adhesive layer Rolling to a thickness to form an elastic layer; The hydrophobic coating agent is characterized in that the fourth step of forming a coating layer by coating 150g per square meter on top of the elastic layer.

Hereinafter, the present invention will be described in more detail.

First, the cemented carbide cement used in the present invention exhibits practical strength in two to three hours after construction, and stable strength expression is maintained over a long period of time, and is a high-tech cement called "dream cement". It contains a large amount of aluminate-based minerals, and when it is kneaded with water, it forms a hydrated mineral called 'etrinzite', which generates rapid strength and heat of hydration. The intensity is expressed in the rough steel by the reaction of the mineral 'Alite'. Thus, in a short time (2 to 3 hours), 7-day strength of the ordinary cement is expressed, the coarseness is greater than that of alumina cement, the setting time can be adjusted, and there is almost no shrink bleeding. For this reason, it is used in many fields such as emergency repair of roads and bridges, mechanical foundation work, Korea-China construction work, and manufacture of concrete secondary products.

Styrene-based acrylic emulsion resin (D623 of BASF) is a milky white or transparent liquid having enhanced adhesion through high viscosity as a total polymer produced by polymerizing an acrylic monomer. By evaporation of water, fine molecules of the acrylic polymer combine to form a colorless transparent film (layer), and are excellent in gloss, water resistance, pigment cyclization, aging resistance, fastness and weather resistance.

Aqueous film solvents (taxanol from BASF) are used for the purpose of film-forming aid and freeze protection, and dispersants are used for good mixing.

Fine-grained recycled aggregates are collected during the process of pulverizing with a crusher made by a dry method of the construction waste treatment, wherein the particle size of the fine-grained recycled aggregates selectively collected is approximately # 140 (1.98mm) We use

Waste urethane chip is a recycled rubber chip made by collecting and reprocessing waste urethane used in various products. It has excellent ozone resistance, cold resistance, heat resistance, and solvent resistance, and is widely used as an elastic packaging material requiring various colors due to its excellent color stability. It is widely used as a substitute for elastic packaging material, which is a rather expensive polyurethane material.

Hydrophobic coating agent (BASF's Protectocil BHN) has good chemical reaction with recycled aggregates or waste urethane chips, so it is good to bond by chemical reactions and maintains solid adhesion state between recycled aggregates or waste urethane chips contained in elastic layer and construction surface. It prevents the elastic packaging material from falling off, and also has hydrophobicity against water, so it does not react with water to push water out, thereby extending sliding resistance and life, and preventing water film and waterproofing effect.

A method of paving an elastic road having hydrophobicity according to the present invention comprising a mixture of the above materials will be described.

1. First process: washing process of base layer (preparation process)

First, the upper part of the base layer constructed of concrete or permeable concrete is washed.

First, when the surface of the construction, grease, rust, stains, and other oil-based products to wash the contaminants, and sprayed with a high-pressure cleaner to remove the contaminants can be washed in a variety of ways, but preferably a dedicated cleaner or The weak acid is used to remove various impurities on the construction surface.

2. Second process: surface adhesion layer forming process

In order to solidify the bonding between the base layer and the elastic layer described below, a surface adhesive is prepared, and the surface adhesive according to the present invention is uniformly applied. Prevents separation to facilitate bonding of the base surface and the elastic layer.

The surface adhesive is prepared by mixing 1 ~ 7kg of water, 0.1 ~ 0.5kg of styrene-based acrylic emulsion resin, 0.01 ~ 0.05kg of aqueous coating solvent, 0.01kg of dispersant per 1kg of cemented carbide.

The surface adhesive thus prepared is evenly sprayed to a thickness of 1 to 3 mm using a surface adhesive 5 to 10 kg per 1 m 2 of the surface of the base layer to form a surface adhesive layer.

3. Third process: elastic layer forming process

An elastic packaging material prepared by mixing waste urethane chips, resins, and fine-grain recycled aggregates is placed on top of the surface adhesive layer and then rolled with a roller to form an elastic layer.

The elastic packaging material is a waste urethane chip as an elastic material, using fine grain recycled aggregates for filling and strength reinforcement, and a styrene-based acrylic emulsion resin as a binder of the waste urethane chip and fine grain recycled aggregates.

Specifically, the elastic packaging material is mixed with 90 ~ 100kg of waste urethane chips of less than 10mm, industrial waste, 20 ~ 40kg of styrene-based acrylic emulsion resin, 10 ~ 20kg of fine-grain recycled aggregate of # 140 (1.98mm) recycled from construction waste Is prepared.

The elastic packaging material thus prepared is installed on the surface adhesive layer, and then voltage is applied 5 to 6 times with a 3 Kg constant temperature roller to form an elastic layer having a thickness of 30 to 50 mm.

In this case, the elastic packaging material may express a desired color by mixing a suitable amount of pigment of the desired color.

4, 4th process: coating layer forming process

The upper portion of the elastic layer is coated with a hydrophobic coating agent to form a coating layer.

The hydrophobic coating agent is coated on top of the elastic layer to prevent the pedestrian from slipping due to the water film formed on the elastic layer during rainy weather, which is a problem of the elastic pavement. The coating layer is formed to prevent the pedestrian from slipping.

The coating layer is formed by coating a hydrophobic coating agent on the top of the elastic layer at 150g per m 2.

Hereinafter, the present invention will be described in detail with reference to Examples, but the present invention is not limited by the Examples.

EXAMPLE

First, the foreign matter attached to the base surface of the concrete pavement is removed by spraying or cleaning.

And the surface adhesive sprayed on the upper part of a base material surface is manufactured.

The manufacturing example of the surface adhesive was mixed by stirring 5Kg of water per 1Kg of cemented carbide, 0.3Kg of styrene-based acrylic emulsion resin (using BA623 D623), 0.03Kg of aqueous coating solvent (using BASF's taxanol product), and 0.01Kg of dispersing agent. do.

The surface adhesive thus prepared is sprayed evenly on the base layer surface of the washed concrete pavement and sprayed to a thickness of about 3 mm. The surface adhesive used at this time will be preferably used in the range of 5 ~ 10Kg per square meter of the surface of the base surface.

When the surface adhesive layer is formed by spraying the surface adhesive as described above, 100Kg of waste urethane chip of 10mm or less, 30Kg of styrene-based acrylic emulsion resin (using BASF's D623) and 20Kg of fine grain recycled aggregate of # 140 (1.98mm) size are mixed. And then stirred to prepare an elastic material.

The elastic material thus prepared is deposited on top of the surface adhesive layer.

At this time, the elastic material is laid in a thickness of 30 ~ 50mm, and then rolled by voltage 6 times using a constant temperature roller of 30Kg.

When the elastic layer is formed as described above, a hydrophobic coating agent (using BASF's Protectocil BHN product) is prepared, and 150 g per 1 m 2 of the bottom of the elastic layer is uniformly coated to form a coating layer to complete the pavement surface.

Thus, the elastic road having hydrophobicity according to the present invention paved by the above method is elastic by waste urethane chips and at the same time can maintain the strength as a road by fine-grained recycled aggregate used for filling and strength reinforcement, elastic layer By spraying the hydrophobic coating agent is coated on the top of the slip is prevented by the water film formed in the elastic layer in the rain.

As described above, according to the pavement method of the hydrophobic elastic road according to the present invention, the adhesion between the base layer and the elastic layer by using a surface adhesive including a superhard cement and a styrene-based acrylic emulsion resin between the base layer and the elastic layer. By reinforcing, it is possible to prevent separation of base and elastic layers, and by using waste urethane chips that recycled urethane, which is an industrial waste, and fine-grained recycled aggregates that recycled construction waste, it is possible to save resources and prevent environmental pollution. have.

In addition, by forming a coating layer having a hydrophobicity on the elastic layer to prevent the slip of the pedestrians in rainy weather there is an effect that can prevent the accident of the pedestrians in advance.

Claims (2)

In the pavement method of the road to wrap the elastic pavement on top of the base layer constructed of concrete or pitched concrete, A first step of removing and cleaning foreign matter adhered to the pavement layer surface constructed of concrete or permeable concrete to be paved; A surface adhesive prepared by mixing 1 to 7 kg of water, 0.1 to 0.5 kg of a styrene-based acrylic emulsion resin, 0.01 to 0.05 kg of an aqueous coating solvent, and 0.01 kg of a dispersant is added to the surface of the base layer. A second step of forming a surface adhesive layer by spraying to a thickness of 1 to 3 mm using 10 kg; 90 ~ 100kg waste urethane chip of less than 10mm, 20 ~ 40kg of styrene-based acrylic emulsion resin, 10 ~ 20kg fine-grain recycled aggregate of # 140 (1.98mm) size of the elastic packaging material 30 ~ 50mm on top of the surface adhesive layer Rolling to a thickness to form an elastic layer; 4. A method for paving elastic roads having hydrophobicity, comprising a fourth step of forming a coating layer by coating a hydrophobic coating agent at an upper portion of the elastic layer at 150 g per 1 m 2. The method of claim 1, The method for paving elastic road having hydrophobicity, characterized in that the elastic packaging material used in the third step further comprises a certain amount of pigment.