KR20050018864A - Material for pavement of road with anti-sliding function - Google Patents

Abstract

PURPOSE: Provided are paving materials with slip and abrasion resistance, and good distinguishability on the road surface by using silica sand as main aggregates, and thermal plastic/thermal hardening resin as binders. CONSTITUTION: The road paving materials comprises the components of: 40-60wt.% of silica sand for slip and abrasion resistance; 23-30wt.% of thermal plastic resin comprising 22-50wt.% of polyamide resin,13-40wt.% of styrene butadiene and 10-65wt.% of rosin ester resin, 3-15wt.% of thermal hardening selected from epoxy resin, urethane resin and acryl resin; 1-3wt.% of polyethylene wax for surface oxidation prevention and fluidity improvement; 5-15wt.% of calcium carbonate for strength and durability; 1-4wt.% of pigment for visual distinguishability required in marking bus lane, school zone, yellow zone, etc. The liquid-type paving materials(10) to build road humps is prepared by heating raw materials to 200-300deg.C, and the road humps are built on asphalt road(5) by spreading paving materials on the road, forming surface roughness(1) by roller, and hardening at room temperature.

Description

Paver with anti-slip function {Material for pavement of road with anti-sliding function}

The present invention relates to a pavement material having an anti-slip function on the road, and more specifically, silica sand is used as the main aggregate, and the thermoplastic resin and the thermosetting resin are mixed as binders to maintain a firm bonding state with the road. It is not only excellent in general physical properties such as wear resistance, impact resistance, and heat resistance, but also aggregate and resin components are mixed together to prevent the dropping of aggregate components due to continuous impact and abrasion by vehicle traffic. The road surface has excellent visibility for extending the life of the product, and by using rollers to form acid roughness (roughness) on the surface of the resin layer when the anti-slip agent is applied to increase the sliding resistance. It relates to a packaging material having an anti-slip function.

In general, there are many curved roads and downhill roads compared to the speed of vehicles that drive on highways, national roads, and local roads.In these places, the road surface is slippery, so the vehicles leave the road or roll over on curved roads. Non-slip facilities have been used to prevent such accidents, and in the past, as interest in safety accidents increased, anti-skid pavement such as ramps of road intersections, sharp curves and ramps, schools, crosswalks, etc. Non-slip facilities such as roads and parking lots and other road accident areas are installed and used.

Conventional anti-slip installations are generally used in the form of: First, after applying resin to the road and spraying aggregate (steel slag), it is finished by compacting the surface using a compaction roller of a certain weight. The dropping of the aggregates impregnated in the resin proceeds to significantly reduce the wear and slip resistance of the product, and the durability of the product is weak, and if used for a long period of time, dropping with the asphalt as a base material may proceed. In addition, the weather resistance is weak due to the rapid discoloration of the coating film occurs a phenomenon that the color of the product changes to white, thereby causing a sharp drop in visibility of the product. In addition, by using a thick aggregate in order to increase the sliding resistance, the thickness of the coating film is increased to cause the vibration of the vehicle and the deterioration of ride comfort when driving the car.

Secondly, there is a method of painting using a thermoplastic resin. This method works by using a separate melting machine, so the workability is good, but the variety of product colors is degraded, and the visibility of the product is deteriorated due to color discoloration. do. In addition, thick aggregates such as bauxite or steel slag are used as anti-skid aggregates, so that aggregates contained in the products sink when the molten product is applied, and the resin layer covers the surface with less aggregate components. Phenomenon appears.

Even in this method, the aggregates drawn on the surface due to the continuous impact of the vehicle proceeds, resulting in environmental pollution, and the sliding resistance is reduced by the surface resin layer from which the aggregates are dropped. It causes noise and decreases riding comfort.

As the second conventional method, the anti-slip agent on the pavement has been proposed in Patent No. 0171675 (Registration Date: October 21, 1998).

That is, the anti-slip agent for roads of the prior art patent No. 0171675 is 50% or more of steel slag or bauxite, 16-18% of resin ester, 10-13% of low density polyethylene, 2-4% of activated carbon, rubber 2 ~. 4% and 10 ~ 20% of the fillers of stone powder and enamel silicate are heated and melted at 210 ~ 250 ℃ to form an anti-slip agent on the pavement, and apply this anti-slip agent to the road surface with a uniform thickness to make flat work. It is to be cured at room temperature for 10 to 15 minutes.

The conventional anti-slip agent for the road, when the product is applied, the aggregate component of the bauxite, which is a mineral, is settled to the floor by the load, so that the resin component surrounds the aggregate surface, so that the sliding resistance is relatively low, and the resin surface with time passes. If this wear occurs, the settled aggregate is drawn to the resin surface and shows slip resistance, but the aggregate component is dropped by continuous impact and abrasion caused by vehicle traffic, and loses its function as an anti-slip agent. It acts as a factor that causes a decrease in reliability of the product as an inhibitor.

In addition, in the case of the existing speed bumps, the installation height is high and the visibility is quickly deteriorated due to the wear of the surface coating surface as time passes. In particular, it is more likely to have an adverse effect on the safety operation at night, and also provides an anti-slip function. There is a drawback to not doing it.

The present invention is to solve the problems as described above is to have a sliding resistance function by the aggregate included in the road pavement and the surface roughness can be formed when paving the road.

That is, the present invention is made of silica sand having excellent sliding resistance as a main aggregate, and by using a thermoplastic resin and a thermosetting resin as a binder, it maintains a firm bonding state with the road, and has various effects such as wear resistance, impact resistance, and heat resistance. In addition to excellent physical properties, aggregates and resins are mixed together to prevent sedimentation of aggregates, which prevents the dropping of aggregates due to continuous impact and abrasion caused by traffic. In addition, the technical problem is to form a roughness (roughness) in the form of acid on the surface of the resin layer by applying a non-slip agent by using a roller so that the sliding resistance can be further increased by this roughness to increase the reliability.

In addition, the present invention can improve the retroreflective function by the roughness formed irregularly than the existing planar lane by distributing the glass beads on the surface of the non-slip packaging material roughness is formed when used for lane painting, and at the same time Technical task is to prevent drowsiness driving by a certain type of vibration and sound generated in the area in contact with the vehicle wheel by the surface roughness while driving the vehicle to contribute to safe driving.

In addition, the present invention is capable of expressing a variety of colors to increase the visibility of the product, so the bus zone (Red zone), school zone (Green zone), green zone (Yellow zone), yellow zone (Yellow zone) that require special visibility It can be used as a speed bump when it is applied to a certain thickness. Therefore, it is a technical problem to have visibility and slip resistance at the same time.

The present invention is a pavement material having an anti-slip function on the road, 40 ~ 60wt% silica sand for improving the slip resistance and wear resistance, and polyamide resin 22-50wt having a main function as a binder to soften and deform when heated %, 23-30 wt% of thermoplastic resin consisting of 13-40 wt% of styrene butadiene styrene and 65-10 wt% of rosin ester resin, and a binder for reinforcing properties that do not soften or dissolve in solvent even after heating after curing and curing. 15 ~ 3wt% of one kind of thermosetting resin selected from epoxy resin, urethane resin, acrylic resin, and modified epoxy resin with function, 3 ~ 1wt% of polyethylene wax as an additive to improve surface oxidation prevention and flow, and strength 15 to 5wt% of calcium carbonate, a filler for improving durability and durability, and distinctive color from the road for easy visual identification It is characterized in that the pigment 4-1wt% for the expression is mixed.

Hereinafter, a pavement material having a road slip function according to the present invention will be described in detail.

In the present invention, 40 to 60 wt% of silica sand for improving slip resistance and abrasion resistance, 22 to 50 wt% of polyamide resin, 13 to 40 wt% of styrene butadiene styrene, which are softened and deformable when heated, and have a main function as a binder. Epoxy resins, urethane resins, and acrylics having 23-30 wt% of thermoplastic resins consisting of rosin ester resins, and main functions as binders for reinforcing physical properties that do not soften or dissolve in solvent even after heating. 15 ~ 3wt% of one kind of thermosetting resin selected from resin and modified epoxy resin, 3 ~ 1wt% of polyethylene wax as an additive to improve surface oxidation prevention and flow, and calcium carbonate as a filler to improve strength and durability 15 to 5wt% and pigments 4 to 1wt% to express the distinguishing color from the road for easy visual identification It is characterized by

When the silica sand for improving the slip resistance and wear resistance is added in less than 40wt%, the slip resistance and wear resistance decreases, and when more than 60wt% is added, the adhesion force decreases, thereby causing the phenomenon of detachment from the road surface. It is preferable to add in the range of%, and in particular, the use of silica sand in the range of # 3 ~ 7 沙 沙 improves the slip resistance and wear resistance.

When the thermoplastic resin is added in less than 23wt%, the adhesion and durability of the product will be reduced, and if it is added more than 30wt%, there may be a crack in the product due to the increase in hardness and the decrease in flexibility, and thus 23 ~ 30wt%. It is preferable to add in the range.

The thermosetting resin is selected from epoxy resins, urethane resins and acrylic resins, and modified epoxy resins, and when less than 3wt% is added, the adhesion and durability of the anti-slip agent are lowered. It is preferable to add it within the range of 15 to 3wt% because there is a possibility of cracking in the product due to the decrease.

The additive uses a polyethylene wax, and when it is added less than 1wt%, the surface anti-oxidation function may be lowered, and when it is added 3wt% or more, the surface floating (blooming) may occur, which may lead to a decrease in slip resistance. It is preferable to add in 3 to 1wt% range.

The filler uses calcium carbonate (Calcium carbonate: CaCo3), and when added to less than 5wt%, durability and abrasion is lowered, and when it is added above 15wt%, thixotropy may be reduced and cracks may be generated in the range of 15 to 5wt%. It is preferable to inject | pour in.

When the pigment is added in the range of 4 ~ 1wt% does not affect the physical properties of the product, it was confirmed that the experiment can be expressed almost all the desired color.

Here, the thermoplastic resin is 22 to 50 wt% of a polyamide resin (Polyamide Resin), which is a material providing a main function of adhesion, and styrene butadiene styrene (SBS) 13 ~ to reinforce physical properties such as flexibility and impact resistance. 40 wt% and rosin ester resin (Rosin Ester Resin) of 65 ~ 10wt%.

When the polyamide resin is added in less than 22wt%, the adhesion and durability of the anti-slip agent are generated, and when it is added more than 50wt%, cracks may occur in the product, and it is preferable to add the polyamide resin within the range of 22 to 50wt%.

When the styrene butadiene styrene (SBS) is added below 13wt%, the flexibility of the anti-slip agent is lowered, and when it is added above 40wt%, the flexibility is increased to the contrary, so that the strength of the product may be reduced, so it is added within the range of 13-40 wt%. desirable.

When the rosin ester resin is added in less than 10wt%, the adhesion and durability of the anti-slip agent are generated, and when it is added more than 65wt%, cracks may occur in the product, and it is preferable to add it within the range of 65 to 10wt%.

Referring to the manufacturing and coating process of the pavement material having a road slip function made of such components are as follows.

First, 40 to 60 wt% of silica sand, 5 to 15 wt% of polyamide resin, thermoplastic resin, 3 to 12 wt% of styrene butadiene styrene, 15 to 3 wt% of rosin ester resin, epoxy resin, urethane resin and acrylic resin, modified 15 to 3 wt% of one type of thermosetting resin selected from Modified Epoxy Resin, 3 to 1 wt% of polyethylene wax as additive, 15 to 5 wt% of calcium carbonate as filler, and 4 to 1 wt% of pigment, are added to the dissolution tank. By heating the temperature of the reactor to 200 ~ 300 ℃ while mixing evenly, the components are melted to form a liquid packaging material having a non-slip function.

The non-slip agent prepared as described above has a disadvantage of being vulnerable to heat in the case of the thermoplastic resin, but it has the effect of improving the existing physical properties by mixing the thermosetting resin, in particular the viscosity is increased during curing to give a thixotropic effect.

As described above, the anti-slip agent for the road is completely removed by a power tool, a cleaning brush, etc., and then applied as an applicator, and then a surface roughness is formed by using a roller. , The construction is completed by curing at room temperature for 20-30 minutes.

At this time, when the surface roughness is formed using a roller, acid-type roughness is formed on the surface by thixotropy imparted when the resin and the filler mixed in the resin and silica sand are cured, and the slip resistance is achieved by the roughness formed. This is further improved.

Hereinafter, a state in which a pavement material having a non-slip function on the road according to the present invention is applied to a road will be described with reference to FIGS. 1 and 2.

1 is a planar photograph of the pavement having a non-slip function of the present invention coated on the road, Figure 2 is an enlarged cross-sectional view of a state of applying the pavement having a non-slip function of the present invention to the road.

As the roller is formed in the groove portion in any shape, when the pavement having a road slip function according to the invention applied to the road as shown in Figure 2 by the thixotropy of the groove portion and the non-slip pavement formed on the roller Wave-shaped roughness 1 is formed on the surface of the resin layer 4 perpendicular to the traveling direction of the vehicle, and the traveling direction of the vehicle is formed at both ends of the bonding surface with the asphalt 5 where the resin layer 4 starts. An inclined portion 3 forming a gentle slope is formed, and the anti-slip function packaging material 10 is formed on the surface and inside of the resin layer 4 in a form in which silica sand 2, which is an anti-slip aggregate, is dispersed. .

The inclined portion 3 formed as described above improves the riding comfort when the vehicle passes over the non-slip function packaging material 10 by a gentle inclination, and at this time, prevents the first sliding by the roughness 1 formed on the surface, Then, the sliding is prevented by the silica sand 2 protruding to the surface of the resin layer 4.

Hereinafter, an embodiment of a pavement material having a road slip function according to the present invention will be described.

The composition content ratio according to the embodiment of the present invention is shown in Table 1.

Table 1 Composition ratio table according to the embodiment (unit: wt%)

ingredient Example 1 Example 2 Example 3 Silica sand 40 50 60 Thermoplastic Polyamide Resin 5 10 15 SBS 3 8 12 Rosin ester resin 15 9 3 Thermosetting resin 15 9 3 additive 3 2 One Filling 15 10 5 Pigment 4 2 One

After 3 to 12 months after applying the pavement material having a non-slip function on the road of the present invention prepared in the content ratio shown in Table 1 to a width of 3m, 1m width 0.5 ~ 1.0cm thickness after 3-12 months It confirmed and the result is shown in Table 2.

(Table 2) Comparison table of adhesion and wear state according to each example

Wear Attached state 3 months 6 months 9 months 12 months 3 months 6 months 9 months 12 months Example 1 Great Great Great Great Great Great Great Good Example 2 Great Great Great Great Great Great Great Great Example 3 Great Great Great Great Great Great Good Good

As shown in Table 2, when the pavement material having a non-slip function on the road according to the present invention is installed on the road, it has excellent wear resistance and maintains anti-skid performance for a long time by the roughness and silica sand formed by the thixotropy of the paint. Able to know.

Table 3 below compares the slip resistance and durability, and wear resistance of the conventional pavement material having a non-slip road function according to the present invention and the conventional patent as a non-slip agent 171675.

Table 3

Slip Resistance (BPN) Wear resistance (labeling test) Example 1 130 0.215 cm2 Example 2 132 0.183 cm2 Example 3 133 0.218 cm2 Patent No. 171675 70

As shown in Table 3, it can be seen that the pavement material having a road slip function of the present invention according to Examples 1 to 3 was found to have a significantly higher performance on slip resistance than the prior art Patent No. 171675.

Figure 3 shows another embodiment of the present invention by applying a pavement having a non-slip function on the road to the road, before the hardening by spraying the glass bead (6) on the surface of the pavement to improve the retroreflective function It would be.

In other words, after applying the packaging material of the present invention containing a portion of glass beads as a coating device, in the step of forming the surface roughness using a roller to further spray the glass beads (6) on the surface to cure for 20 to 30 minutes at room temperature 3, glass beads 6 are bonded to the surface and the inside of the packaging material.

When the night headlight light of the vehicle is irradiated to the packaging material combined with the glass bead 6, the recursive reflection function reflected in the opposite direction of the headlight light is excellent by the surface roughness of the packaging material compared to the existing product in the flat state. This is very effective when used for speed bumps and special lanes for buses, school zones, green zones and yellow zones where visibility is especially required.

As described above, the present invention uses silica sand having excellent sliding resistance as a main aggregate, and maintains a firm bonding state with roads by mixing thermoplastic resin and thermosetting resin as a binder, and has various characteristics such as wear resistance, impact resistance, and heat resistance. In addition to excellent physical properties, aggregate and resin components are mixed together to prevent sedimentation of aggregate components, preventing the dropping of aggregate components due to continuous impact and abrasion caused by traffic, and extending sliding resistance and life. In addition, when the anti-slip agent is applied, a roughness (roughness) in the form of acid is formed on the surface of the resin layer by using a roller, thereby increasing the sliding resistance by this roughness, thereby improving the reliability.

In addition, it is possible to express various colors and improve the visibility of the product, so it can be used for bus lanes, school zones, green zones, yellow zones, etc., where special visibility is required, and especially glass lane beading for lane painting. The retroreflective function can be improved by the surface roughness than the existing planar lanes, and it can contribute to the safe operation such as prevention of drowsiness driving by the certain type of vibration and sound generated in the part which contacts the vehicle wheel by the surface roughness when driving the vehicle. It can be effective.

In addition, the present invention will have a non-slip function that the existing product does not have when used in place of the existing speed bump, it is more effective to ensure visibility of the product.

1 is a planar photograph of a state in which the pavement having a non-slip function on the road according to the present invention applied to the road.

Figure 2 is an enlarged cross-sectional view of a state in which the pavement having a non-slip road function according to the invention applied to the road.

Figure 3 is an enlarged cross-sectional view of a state in which the packaging material showing another embodiment of the present invention on the road.

<Explanation of symbols for main parts of drawing>

1: roughness 2: silica sand

3: inclined portion 4: resin layer

5: Asphalt 6: Glass bead

10: non-slip function packaging material

Claims (1)

In the packaging material having a non-slip function on the road, Silica sand 40-60wt% to improve the slip resistance and wear resistance, When heated, it softens and deforms, and the thermoplastic resin is composed of 22 to 50 wt% of polyamide resin, 13 to 40 wt% of styrene butadiene styrene, and 65 to 10 wt% of rosin ester resin, having a main function as a binder, 15 ~ 3wt% of one kind of thermosetting resin selected from epoxy resin, urethane resin, acrylic resin, and modified epoxy resin which has a main function as a binder for physical property reinforcement that does not soften or dissolve even when heated after curing. Wow, 3 ~ 1wt% polyethylene wax as an additive to prevent surface oxidation and improve flowability, 15-5wt% of calcium carbonate, which is a filler for improving strength and durability, Paving material having a non-slip function on the road, characterized in that the pigment 4 ~ 1wt% for expressing the distinct color from the road is mixed so that the naked eye can easily identify.