KR102538500B1 - High friction non slip surface pavement composition for road and method for constructing surface pavement road with the high friction non slip surface pavement composition - Google Patents

Abstract

The present invention relates to a composition for packaging road surface for non-slip with high friction, and a non-slip packaging construction method using the same, and more specifically, to a composition for packaging road surface for non-slip with high friction, and a non-slip packaging construction method using the same, wherein the composition uses calcined bauxite with high friction and abrasion resistance as aggregates to prevent a vehicle from being slipped when driving, and is a rapid drying composition capable of hardening and drying within two to three minutes after construction on road surfaces, thereby minimizing traffic jam caused by constructions by organizing a construction site within 10 minutes after final construction to enable traffic flows again. In addition, in a non-slip packaging construction method using the composition for packaging road surface for non-slip with high friction, a drainage channel with a width of 5-10 cm across roads every 2-5 m interval provides a function of exposing a surface exposing aggregates of road surface pavement as much as possible when raining, and when there is no drainage channel, the method prevents hydroplaning, which is generated in a wheel of a vehicle driving at high-speed on the packaging material in raining, to help a safe driving of a vehicle through an action of maintaining the grip of a vehicle wheel to the road surface.

Description

High friction non slip surface pavement composition for road and method for constructing surface pavement road with the high friction non slip surface pavement composition}

The present invention relates to a high-friction anti-slip road surface treatment pavement composition and an anti-slip pavement construction method using the same, and more particularly, to a non-slip pavement construction method using calcined bauxite having high friction and abrasion resistance as a fine aggregate to prevent slipping during vehicle driving. It is a quick-drying composition that can be cured and dried within 2 to 3 minutes after pavement construction on the road surface. High friction that can minimize traffic congestion due to installation work by clearing the site and opening traffic within 10 minutes after the final construction It relates to an anti-slip road surface treatment pavement composition and a non-slip pavement construction method using the same.

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In general, anti-slip pavement is installed in dangerous areas such as flat, curved roads, downhill roads, children's protection areas, elderly protection areas, intersections and crosswalks, which are classified as dangerous areas on the road, to induce deceleration and slow movement of vehicles. It refers to a special road surface treatment pavement to increase the frictional resistance of the road surface, and it is to reduce traffic safety accidents and protect pedestrian safety by inducing vehicle deceleration in dangerous areas.

Until recently, non-slip paving materials have generally been constructed by using a two-component MMA resin as a main binder and applying it to the road surface.

However, most non-slip paving materials use silica sand with low wear resistance as a filler or extender in the size of 0.5 to 1.0 mm as the aggregate that must be used to induce friction between the road surface and the tire, or use a small amount of silica sand with a size of 3 to 4 mm. The majority of facilities are used or, worse, are not used at all. As a result, when the anti-slip pavement wears out, the aggregate is not exposed, but the surface becomes smooth. Anti-skid pavement currently under construction is not a slip-resistant pavement, but a slip-inducing pavement.

Looking at the technologies related to conventional anti-slip packaging, Korean Patent Registration 10-0944376 (registered on February 19, 2010) contains 20 to 25 wt% of modified nylon resin and 20 to 30 wt% of ceramic aggregate heated to 1000 to 1200 ° C. , 1-5 wt% of low-density polyethylene, 3-8 wt% of microwax, and an inorganic filler as the remaining amount are put into a melting machine on the spot, heated and re-melted at 170-190 ° C, and 4-6 wt% of coloring pigment is melted. It is put into the machine and stirred evenly with a screw-type stirrer, and at the same time, while moving the melter along the road surface, the anti-slip agent inside the melter is fused and applied to the road surface by adjusting the temperature of 160 ~ 170 ℃, and a roller formed of special heat-resistant silicone rubber mounted on the melter A road surface anti-slip agent construction method is known in which a non-slip surface is formed using a flat plate and then cured at room temperature for 15 to 20 minutes.

However, the road surface anti-slip agent uses a modified nylon resin (polyamide) heated ceramic aggregate as the main aggregate. The modified nylon resin has stronger bonding strength between the compositions than the adhesive strength to the road surface, so that after time elapses, the adhesive strength with the road surface The gap widens due to weakening, causing dropouts. In addition, ceramic aggregate is pulverized waste ceramics supplied from ceramic producers, and it has a justification for recycling resources, but due to the excessive sharp angle of the aggregate, inside the molten composition, the acute angle portion tends to lie down instead of standing upright, so it tends to occur. During construction, the surface tends to be flat rather than textured, such as irregularities, so it is difficult to show the anti-slip effect.

In addition, with respect to 100 parts by weight of hot-melt resin, 120 to 140 parts by weight of waste aggregate powder for construction and 110 to 130 parts by weight of steelmaking slag powder according to Korean Patent No. 10-0945752 (registration date: February 26, 2010) and 50 to 60 parts by weight of filler, 15 to 20 parts by weight of wax, 1 to 2 parts by weight of carbon fiber chop, 1 to 1.5 parts by weight of glass beads, and 1 to 1.5 parts by weight of colored pigment. In the anti-slip packaging composition, the anti-slip packaging composition further includes 20 to 30 parts by weight of a functional filler based on 100 parts by weight of the hot melt resin substrate, and the hot melt resin is 50 to 80 parts by weight of an acid modified polyamide resin. % and silicone elastomer (silicon elastomer) 20 to 50% by weight is mixed, and the filler is selected from silica, magnesium carbonate, talc, calcium carbonate, kaolin, and mica, and one or more are selected and used, and the functional An anti-slip packaging composition is known in which zirconium powder or ceramic balls are used alone or in combination as the filler.

However, the non-slip pavement composition is said to use acid-modified polyamide resin (nylon resin) and pulverized powder for construction waste aggregate and steelmaking slag. Concrete powder, which is an aggregate, is brittle and is not suitable for use as an anti-skid aggregate, and although steelmaking slag is hard, it tends to break frequently due to its hardness.

In addition, Korean Patent No. 10-1037033 (registration date May 18, 2011) 65 to 75% by weight of terephthalic acid modified polyamide resin, 15 to 25% by weight of rosin ester resin and ethylene vinyl acetate copolymer 3 to 7% by weight and 3 to 5% by weight of polyethylene, 60 to 140 parts by weight of aggregate powder for construction, 30 to 60 parts by weight of ceramic aggregate having a retroreflective function, 50 to 60 parts by weight of filler, glass eggs (bead) 20 to 60 parts by weight, 15 to 20 parts by weight of wax, 1 to 5 parts by weight of antioxidant, 1 to 5 parts by weight of UV stabilizer, 1 to 2 parts by weight of carbon fiber chop, and 1 to 1.5 parts by weight of coloring pigment As a road marking composition, the rosin ester resin is hydrogenated hydrocarbon rosin esters, acrylic rosin esters, disproportionated rosin esters, dibasic acid modified rosin esters ( Dibasic Acid Modified Rosin Esters), Polymerized Rosin Esters, and Phenol Modified Rosin Esters, Characterized in that at least one selected from the group consisting of crosswalks and speed bumps having a non-slip function, road surface for manufacturing crosswalks and speed bumps Display compositions are known.

However, the road surface marking composition is said to use terephthalic acid-modified polyamide resin (nylon resin) as a main binder and aggregate powder for construction as a main aggregate, which shows a structure of contents very similar to that of Korean Patent Registration 10-0945752 above. there is.

In addition, Korean Patent No. 10-1612544 (registered on April 7, 2016) includes an adhesive, a filler, low density polyethylene (LDPE) and an aggregate, and based on 100 parts by weight of the adhesive, 62 to 92 parts by weight of the filler, low density polyethylene (LDPE) 56 to 84 parts by weight, a thermoplastic mixed resin containing 5.6 to 8.4 parts by weight of aggregate; Contains modified EVA (Ethylene Vinyl Acetate) resin, aggregate, wax, filler, and glass fiber, and based on 100 parts by weight of modified EVA resin, 300 to 450 parts by weight of aggregate, 114 to 171 parts by weight of wax, and 220 to 330 parts by weight of filler , modified EVA mixed resin containing 4 to 6 parts by weight of glass fibers; and a functional enhancer containing 3.6 to 5.4 parts by weight of the plasticizer based on 100 parts by weight of the aggregate and a plasticizer; A road surface anti-slip eco-friendly paving material composition is known, wherein the thermoplastic mixed resin, the modified EVA mixed resin, and the functional enhancer are included in a weight ratio of 1: 0.79 to 1.19: 0.61 to 0.91.

In addition, Korean Registered Patent No. 10-2145049 (registration date August 10, 2020) includes (1) modified MMA (Methyl methacrylate); (2) poly methylmethacylate (PMMA); (3) phthalate-based resins; (4) ester-based solvents; (5) filler (6) lightweight aggregate, (7) calcium carbonate, (8) reinforcing fibers, wherein the reinforcing fibers are PVA (polyvinyl alcohol) fibers, characterized in that the MMA system incorporating PVA fibers As an anti-slip packaging composition, the modified MMA (methyl methacrylate) has a weight average molecular weight of 50 to 200, a glass transition temperature of 80 ° C to 120 ° C, and an acid value of 5 to 10; The PMMA has a weight average molecular weight of 4,000 to 5,000, a glass transition temperature of 80 ° C to 120, and an acid value of 5 to 10; The MMA-based non-slip packaging composition incorporating the PVA fiber includes (1) 10 to 20 parts by weight of modified MMA; (2) 3 to 7 parts by weight of poly methylmethacylate (PMMA); (3) 5 to 15 parts by weight of a phthalate-based resin; (4) 1 to 5 parts by weight of an ester solvent; (5) 20 to 30 parts by weight of filler (6) 15 to 25 parts by weight of lightweight aggregate, (7) 10 to 20 parts by weight of calcium carbonate, (8) 03 to 12 parts by weight of reinforcing fibers; and also the PVA The MMA-based non-slip packaging composition incorporating fibers further includes supplementary fibers, wherein the supplementary fibers include steel fibers, glass fibers, carbon fibers, basalt fibers, aramid fibers, polyethylene fibers, polyvinyl fibers, nylon fibers, and cellulose. At least one type selected from cellulous fibers, and the MMA-based non-slip packaging composition incorporating the PVA fibers further includes a low molecular weight copolymer resin and a high molecular weight copolymer resin, and the low molecular weight copolymer resin has a 5000 to 50,000, the high molecular weight copolymer resin has a weight average molecular weight in the range of 70,000 to 150,000, and the low molecular weight copolymer resin is [n-butylacrylate]-[styrene]-[ethylhexyl acrylate], and the high molecular weight copolymer resin is [ethyl methacrylate]-[benzyl methacrylate]-[3-methoxybutyl methacrylate]-[acrylonitrile]-[hydroxyethyl methacrylate] being a copolymer resin; An MMA-based non-slip packaging composition incorporating PVA fibers is known.

In addition, based on 100 parts by weight of asphalt in Korea Patent Registration 10-2331985 (registration date November 23, 2021), 5 to 50 parts by weight of styrene isoprene styrene; 5 to 30 parts by weight of hydrogenated petroleum resin; 500 to 2,000 parts by weight of aggregate; 30 to 150 parts by weight of finely divided aggregate; Performance improver 01 to 2 parts by weight; Cellulose fiber 01 to 2 parts by weight; Wax 01 to 2 parts by weight; Antioxidant 01 to 2 parts by weight; and 3 to 40 parts by weight of a pigment, further comprising 1 to 5 parts by weight of phthalic acid resin varnish based on 100 parts by weight of asphalt, and 1 to 5 parts by weight of sodium fluoride based on 100 parts by weight of asphalt. It further comprises dimethylpolysiloxane at 1 to 5 parts by weight based on 100 parts by weight of asphalt, starch phosphate ester at 01 to 2 parts by weight based on 100 parts by weight of asphalt, and dibutyl phthalate at 100 parts by weight of asphalt. It further contains 1 to 5 parts by weight as a basis, further contains 1 to 3 parts by weight of fine gelite powder based on 100 parts by weight of asphalt, and further contains 1 to 5 parts by weight of calcium aluminate based on 100 parts by weight of asphalt, Sodium silicate is further included in an amount of 1 to 5 parts by weight based on 100 parts by weight of asphalt, potassium phosphate is further included in an amount of 1 to 5 parts by weight based on 100 parts by weight of asphalt, and carboxymethylcellulose is contained in an amount of 1 to 5 parts by weight based on 100 parts by weight of asphalt. further includes 1 to 3 parts by weight of aragonite based on 100 parts by weight of asphalt, 1 to 5 parts by weight of sepiolite based on 100 parts by weight of asphalt, and gamma-aminopropyltriethoxysilane Further comprising 1 to 5 parts by weight based on 100 parts by weight of asphalt, further including 1 to 5 parts by weight of acetylated ranolane based on 100 parts by weight of asphalt, and 1 to 3 parts by weight of benzoic acid based on 100 parts by weight of asphalt Color asphalt concrete compositions further comprising are known.

In addition, Korean Registered Patent No. 10-2389268 (registration date April 18, 2022) includes base resin, modified EVA resin, filler, alumina powder, sugar, pigment, thickener, dispersant, accelerator, aggregate, bauxite and reaction initiator And, the base resin is prepared by dissolving and diluting 180 to 220 parts by weight of a reactive acrylic monomer at a temperature of 30 to 35 ° C. based on 100 parts by weight of the polyacrylate copolymer, but the polyacrylate copolymer has a weight average molecular weight ) is in the range of 60,000 to 80,000, the Tg (glass transition temperature) is 62 ° C, and the filler is prepared by mixing silicon dioxide and calcium oxide in a weight ratio of 1: 1. Surface treatment compositions for paving are known.

However, the anti-slip packaging compositions as described above have problems in that they do not exhibit the anti-slip function, which is the main purpose, because the aggregate tends to break or fall off after time in the adhesion between the binder resin and the aggregate.

[Patent Document 001] Korean Registered Patent No. 10-0944376 (registration date: February 19, 2010) [Patent Document 002] Korean Registered Patent No. 10-0945752 (registration date: February 26, 2010) [Patent Document 003] Korean Registered Patent No. 10-1037033 (registration date May 18, 2011) [Patent Document 004] Korean Registered Patent No. 10-1612544 (registration date: April 7, 2016) [Patent Document 005] Korean Registered Patent No. 10-2145049 (registration date: August 10, 2020) [Patent Document 006] Korean Registered Patent No. 10-2331985 (registration date: November 23, 2021) [Patent Document 007] Korean Registered Patent No. 10-2389268 (registration date: April 18, 2022)

In order to solve the above conventional problems, the present invention uses calcined bauxite with high friction and abrasion resistance as an aggregate to prevent slipping during vehicle driving, and hardens within 2 to 3 minutes after pavement construction on the road surface. It is a quick-drying composition that can be dried and provides a high-friction anti-skid road surface treatment paving composition that can minimize traffic congestion due to installation work by clearing the site and opening traffic within 10 minutes after final construction and a non-slip pavement construction method using the same Make it a problem you want to solve.

The present invention is to solve the above problems, C ₅ C ₉ copolymerized petroleum resin, modified rosin ester, ultra-low-density polyethylene and low-density polyethylene mixed resin, polyethylene wax and an organic binder composed of a non-volatile plasticizer; A mixed aggregate composed of calcined bauxite pulverized material, garnet pulverized material, and dolomite pulverized material calcined at 1200 to 1700 ° C; Inorganic fillers composed of ocher and shell powder; and a pigment.

The high-friction anti-skid road surface treatment pavement composition includes 8 to 12% by weight of a C ₅ C ₉ copolymerized petroleum resin having a melting point of 95 to 105 ° C, 5 to 10% by weight of a modified rosin ester having a melting point of 95 to 115 ° C, 2 to 5% by weight of a mixture of ultra-low density polyethylene with a melting point of 95 to 115℃ and low density polyethylene in a weight ratio of 20:80, 2 to 5% by weight of polyethylene wax with a melting point of 105 to 115℃, 0.5 to 5% by weight of a non-volatile plasticizer An organic binder comprising 2% by weight; A mixed aggregate composed of 35 to 45% by weight of pulverized calcined bauxite calcined at 1200 to 1700 ° C, 5 to 15% by weight of pulverized Garnet material, and 7 to 17% by weight of pulverized dolomite; An inorganic filler composed of 10 to 15% by weight of ocher powder and 10 to 18% by weight of shell powder; And 2 to 4% by weight of the pigment is a mixed composition as a solution to the problem.

The C ₅ C ₉ copolymer petroleum resin is a cyclic olefin generated in the thermal cracking process of naphtha and having one or more ethylenically unsaturated groups, and isoprene, cyclopentadiene, 1,3-pentadiene (1,3 -pentadiene), 1-pentene (1-pentene), 2-pentene (2-pentene) selected from at least one C ₅ -olefin selected from, indene (indene), α-methyl styrene (α-methyl styrene) It is an adhesive resin with a softening point of 80 ° C. to 120 ° C. obtained by copolymerization of one or more C ₉ -olefins.

The modified rosin ester is an adhesive auxiliary resin having a softening point of 80 ℃ to 120 ℃ obtained by esterification of rosin and one or more glycols selected from the glycol group consisting of methanol, ethylene glycol, diethylene glycol, glycerol and pentaerythritol. as a solution

As a solution to the problem, the modified rosin ester is rosin glycerol ester (ester gum) or rosin pentaerythritol ester.

The mixed resin is a mixed resin obtained by mixing ultra-low density polyethylene (VLDPE) having a density of 0.910 and a molecular weight of 82000 and low density polyethylene (LDPE) having a density of 0.960 and a molecular weight of 70000 in a ratio of 20:80.

The non-volatile plasticizer is a colorless sticky liquid plasticizer (DBA) obtained by the esterification reaction of adipic acid and butanol or a colorless sticky liquid plasticizer (DOA) obtained by the esterification reaction of adipic acid and octyl alcohol. do.

As a solution to the problem, the high-friction anti-slip road surface treatment pavement composition further comprises 0.2 to 0.5% by weight of a tetraalkyl ammonium bentonite anti-settling agent.

As a solution to the problem, the high-friction anti-slip road surface treatment pavement composition further comprises 0.1 to 1.5% by weight of an antioxidant.

The antioxidant uses a primary antioxidant and a secondary antioxidant to prevent autoxidation by the action of oxygen, but the primary antioxidant is a phenolic 1 that oxidizes instead of a polymer to be protected from oxidation As a primary antioxidant, at least one selected from CAS No. 6683-19-8, 2082-79-3, 1709-70-2, 27676-62-6, 144429-84-5, and 125643-61-0, The secondary antioxidant is a phosphorus-based secondary antioxidant that decomposes and removes oxygen atoms (peroxides) generated in polymers that have already been oxidized, and CAS number 31570-04-4 is used as a solution to the problem.

The mixed aggregate is a mixture of calcined bauxite pulverized to a particle size of 2 to 4 mm, Garnet pulverized to a particle size of 1 to 2 mm, and dolomite pulverized to a particle size of 0.3 to 0.7 mm. as a solution to

The inorganic filler is a mixture of ocher powder having a particle size of 0.05 to 0.2 mm and shell powder having a particle size of 5 to 35 um as a solution to the problem.

The calcined bauxite is a solution to the problem that the Al ₂ O ₃ (aluminum oxide) content is 82 to 87% by weight by heating bauxite ore, a raw material of aluminum, to 1000 to 1700 ° C to remove moisture .

In addition, the present invention comprises the steps of heating and melting the high-friction anti-slip road surface treatment pavement composition; applying the molten high-friction anti-skid road surface treatment pavement composition to a road surface; and curing the applied high-friction anti-skid road surface treatment pavement composition, wherein, prior to the step of applying the molten high-friction anti-slip road surface treatment pavement composition to the road surface, 2 to 5 m intervals in the traveling direction on the road surface. After masking taping with a width of 5 to 10 cm across the road every time, the molten high-friction anti-slip road surface treatment pavement composition is applied to the road surface, and the tape is removed immediately before complete curing to drain the road at a depth of 3 to 5 mm from the road surface An anti-slip pavement construction method using a high-friction anti-slip road surface treatment pavement composition for constructing a strip-shaped anti-slip pavement surface with a width of 2 to 5 m is used as a solution to the problem.

The 2 to 5 m wide band-shaped anti-slip pavement and the 5 to 10 cm wide drainage channel crossing the road have a downward inclination angle of a certain angle in the downward direction of the slope in the case of a sloped road surface to facilitate drainage flow. as a solution

The thermoplastic high-friction anti-skid road surface treatment pavement composition and the anti-slip pavement construction method using the same of the present invention can prevent slipping during vehicle driving by using calcined bauxite with high friction and abrasion resistance as an aggregate, It is a quick-drying composition that can be cured and dried within 2-3 minutes after pavement construction on the road surface, and has an excellent effect of minimizing traffic congestion due to installation work by arranging the site and opening traffic within 10 minutes after the final construction.

In addition, in the anti-slip pavement construction method using the high-friction anti-slip road surface treatment pavement composition, a 5-10 cm wide drainage channel that crosses the road at intervals of 2 to 5 m maximizes the exposed surface of the road surface treatment pavement when it rains. Provides an excellent effect of helping the safe driving of the vehicle through the action of maintaining the road grip of the vehicle wheels by preventing the hydroplaning caused by rainwater from the wheels of vehicles traveling at high speed on the pavement in the absence of a drainage channel. there is.

1 is a schematic diagram of a strip-shaped anti-slip pavement constructed using the high-friction anti-slip road surface treatment pavement composition of the present invention
Figure 2 is a schematic diagram of a strip-shaped anti-slip pavement constructed using the high-friction anti-slip road surface treatment pavement composition of the present invention

Hereinafter, the present invention will be described in detail through the drawings so that those skilled in the art can easily practice it. However, the present invention may be embodied in many different forms and is not limited to the drawings described herein.

First, the high-friction anti-skid road surface treatment pavement composition of the present invention is composed of C ₅ C ₉ copolymerized petroleum resin, modified rosin ester, a mixture of ultra-low-density polyethylene and low-density polyethylene, polyethylene wax, and a non-volatile plasticizer. an organic binder; A mixed aggregate composed of calcined bauxite pulverized material, garnet pulverized material, and dolomite pulverized material calcined at 1200 to 1700 ° C; Inorganic fillers composed of ocher and shell powder; And a pigment; is a mixed composition.

In particular, the high-friction anti-skid road surface treatment pavement composition contains 8 to 12% by weight of a C ₅ C ₉ copolymerized petroleum resin having a melting point of 95 to 105 ° C and 5 to 10% by weight of a modified rosin ester having a melting point of 95 to 115 ° C. %, 2 to 5% by weight of a mixture of ultra-low density polyethylene with a melting point of 95 to 115℃ and low density polyethylene in a weight ratio of 20:80, 2 to 5% by weight of polyethylene wax with a melting point of 105 to 115℃, non-volatile plasticizer An organic binder composed of 0.5 to 2% by weight; A mixed aggregate composed of 35 to 45% by weight of pulverized calcined bauxite calcined at 1200 to 1700 ° C, 5 to 15% by weight of pulverized Garnet material, and 7 to 17% by weight of pulverized dolomite; An inorganic filler composed of 10 to 15% by weight of ocher powder and 10 to 18% by weight of shell powder; And 2 to 4% by weight of the pigment is a mixed composition.

Here, the C ₅ C ₉ copolymer petroleum resin is a cyclic olefin generated in the thermal cracking process of naphtha and having one or more ethylenically unsaturated groups, and isoprene, cyclopentadiene, 1,3-pentadiene (1 , 3-pentadiene), 1-pentene (1-pentene), 2-pentene (2-pentene) at least one C ₅ -olefin selected from, indene (indene), α-methyl styrene (α-methyl styrene) It is an adhesive resin having a softening point of 80°C to 120°C obtained by copolymerization of at least one C ₉ -olefin selected from

That is, the C ₅ C ₉ copolymerized petroleum resin improves the bonding strength between the components of the high friction road surface treatment paving composition composition of the present invention, and is suitable as an adhesive resin of the composition because of its heat resistance, mechanical strength and adhesiveness.

In particular, the C ₅ C ₉ copolymerized petroleum resin is a pale yellow thermoplastic resin obtained through copolymerization of C5-based aliphatic olefins and diolefins and C9-based aromatic olefins generated in the thermal cracking process of naphtha, and this resin is Ethylene-Vinyl-Acetate ( EVA) or Styrene-Isoprene-Styrene copolymer (SIS), and is a light-colored aromatic modified aliphatic hydrocarbon resin with low molecular weight distribution. It is mainly used for modification of styrene-isoprene-styrene (SIS) block copolymers and various polymers. It shows compatibility with the field.

In addition, the modified rosin ester is an adhesive auxiliary resin having a softening point of 80 ° C. to 120 ° C. obtained by esterification of rosin and at least one glycol selected from the group consisting of methanol, ethylene glycol, diethylene glycol, glycerol and pentaerythritol. In particular, it is preferable that they are rosin glycerol ester (ester gum) or rosin pentaerythritol ester.

That is, the modified rosin ester is suitable as an adhesive auxiliary resin of the composition by improving the durability of the coated surface easily contaminated by automobile soot, oil, etc. Preferably, the modified rosin ester is used in combination with 8 to 12% by weight of the C ₅ C ₉ copolymerized petroleum resin, which is an adhesive resin, to make a total of 13 to 22% by weight, which improves durability, wear resistance, This is because it is necessary to fine-tune the blending ratio between resins in consideration of impact resistance.

In addition, the mixed resin is a mixed resin in which very low density polyethylene (VLDPE) having a density of 0.910 and a molecular weight of 82000 and low density polyethylene (LDPE) having a density of 0.960 and a molecular weight of 70000 are mixed in a ratio of 20:80, and the C ₅ with the modified rosin ester It is an adhesive auxiliary resin mixed with C ₉ copolymerized petroleum resin.

In other words, EVA (ethylene vinyl acetate) resin, which has been widely used in the past, has excellent physical properties and flexibility at low temperatures, and has excellent compatibility with other resins, so it is easy to mix and use, It has the advantage of having excellent adhesive performance, but due to the low softening point of 50 ° C or less, the softening point of the mixed resin of the composition of the present invention is too low compared to 100 ° C ± 10 ° C. There is no problem in construction, but there was a disadvantage that hardening and drying was very delayed during construction in the summer, resulting in stickiness.

Therefore, in the mixed resin of 20% by weight of ultra-low density polyethylene (VLDPE) and 80% by weight of low density polyethylene (LDPE), VLDPE has a lower VA content than EVA and has a high alpha-olefin content, so the alpha-olefin molecule lowers the density and crystallinity It shows high tensile and elasticity at low temperatures and has a low melting point, so it has the same performance regardless of the season. Since it melts well at the melting point and exhibits soft but strong physical properties during curing, in the present invention, a mixed resin of 20% by weight of ultra-low density polyethylene (VLDPE) and 80% by weight of low density polyethylene (LDPE) is an adhesive resin with high compatibility. Since C ₅ C ₉ copolymerized petroleum resin is mixed with the modified rosin ester at an appropriate mixing ratio, bonding strength and strength are realized, so there is no risk of cracking or falling off in summer or winter.

In addition, the polyethylene wax is used in an amount of 2 to 5% by weight and is generally used to improve the flowability of the composition and to treat the surface.

In addition, as the non-volatile plasticizer, a colorless and sticky liquid plasticizer (DBA) obtained by an esterification reaction of adipic acid and butanol or a colorless and sticky liquid plasticizer (DOA) obtained by an esterification reaction of adipic acid and octyl alcohol is used.

That is, the non-volatile plasticizer is a material that has good compatibility with the resin and is dispersed between the molecular chains of the resin. Then, the gap between the molecular chains of the resin is opened so that the molecules are easy to move, so when the amount added is large, the entire resin is flexible and small The addition of also improves flowability and processability during processing.

At this time, the generally used liquid plasticizer volatilizes or naturally decreases over time, which is advantageous in implementing workability in the early stage, but in the later stage, there is a risk of cracking or falling off due to external impact due to toughening of the composition.

Therefore, the non-volatile DBA or DOA used in the present invention is a colorless, sticky liquid plasticizer that remains in the composition without volatility until the end of its lifespan, thereby exhibiting performance as a plasticizer.

In addition, the high-friction anti-skid road surface treatment pavement composition may further include 0.2 to 0.5% by weight of a tetraalkyl ammonium bentonite anti-precipitation agent, which is an organo clay, which is deposited and precipitated in the composition of the present invention. to prevent

In addition, the high-friction anti-skid road surface treatment pavement composition may further include 0.1 to 1.5% by weight of an antioxidant, wherein the antioxidant is a primary antioxidant and a secondary antioxidant to prevent autoxidation by the action of oxygen. Use antioxidants.

At this time, the primary antioxidant is a phenol-based primary antioxidant that oxidizes instead of the polymer to be protected from oxidation, CAS No. 6683-19-8, 2082-79-3, 1709-70-2, 27676- At least one selected from 62-6, 144429-84-5, and 125643-61-0, and the secondary antioxidant is phosphorus-based secondary oxidation that decomposes and removes oxygen atoms (peroxides) generated in polymers that have already been oxidized. As an inhibitor, the CAS number 31570-04-4 is preferred.

Meanwhile, the mixed aggregate and inorganic filler used in the present invention will be described in detail.

The mixed aggregate is used as a mixture of calcined bauxite pulverized to a particle size of 2 to 4 mm, Garnet pulverized to a particle size of 1 to 2 mm, and dolomite pulverized to a particle size of 0.3 to 0.7 mm. .

Calcined Bauxite used in the present invention is an aggregate with high abrasion resistance that realizes the most important performance in a high-friction road surface treatment system, and is mixed into the composition laid on the road surface in areas with a risk of traffic accidents or sprayed on the composition and dried. After hardening, it is a very important factor to prevent the vehicle from slipping through friction with the vehicle's tires.

At this time, the bauxite (Bauxite) is a rock containing a large amount of aluminum components made by repeated hydrolysis of iron and aluminum hydroxide and kaolinite (kaolinite) widely distributed in tropical wet areas, and is the most important ore mineral of aluminum. It is an ore made of aluminum minerals and is also called iron rock. Its chemical composition is Al ₂ O ₃ 2H ₂ O. The high-grade ore of bauxite contains 50% or more of dialuminum trioxide (AlO), and is made into alumina (aluminum oxide) in a refining process and then electrolyzed to make aluminum. Bauxite is used as a fire retardant because of its high resistance to heat and friction.

In the present invention, in particular, the Bauxite ore is heated to 1000 to 1700 ° C. to remove moisture and increase the content of alumina, and the Al ₂ O ₃ (aluminum oxide) content is 82 to 4 mm in a very hard aggregate size of 2 to 4 mm. 87% is the most effective.

Here, calcined bauxite, which is the most widely used for high friction road surface treatment worldwide, is not applied to a single site in Korea, and only one of the 130 or so Korean registered patents for anti-skid uses calcined bauxite. There is no mention of a protective packaging material.

Calcined bauxite, the main aggregate used in the present invention, uses 35 to 45% by weight, which is 50 to 60% by weight of the total aggregate used, and the remaining 40 to 50% by weight of the aggregate is filled with wear-resistant aggregates of smaller specifications according to specifications. As a result, it fills the space between large aggregates to realize the performance of strengthening the organization.

In addition, the garnet pulverized material is pulverized to a particle size of 1 to 2 mm. The garnet pulverized material is a silicate mineral composed of various components and has a Moh's hardness of 7.5 compared to fine aggregates including silica sand, which is a very hard mineral with high hardness and Since it has specific gravity, it is used for abrasives such as sandblasting or for waterjet cutting, so in the present invention, it is used as an auxiliary aggregate to reinforce durability and strength due to the high hardness and specific gravity of the garnet, and the calcined bauxite It is filled in between and strengthens the organization.

In addition, dolomite (dolomite), which is used in an amount of 7 to 17% by weight in the present invention, is a mineral having a Moh's hardness of 3.5 to 4 and is filled into the empty space between calcined bauxite and garnet as fine aggregate with a size of 0.3 to 0.7 mm to further improve the organization. make it firm

That is, the dolomite is also called solid fossil, and its chemical composition is CaMg(CO ₃ ) ₂ , lime carbonate and magnesium carbonate form a 1:1 bicarbonate salt, and a portion of magnesium is often substituted with iron or manganese. It has a hardness of 4.5 to 6, a specific gravity of 2.8 to 2.9, has complete cleavage in the direction of a rhombus, is black, gray, or pink, yellow, brown, or green, and is transparent or translucent and has a glassy luster. In the present invention, the composition It is used to reinforce the strength and improve visibility.

In addition, in the present invention, the inorganic filler is a mixture of ocher powder having a particle size of 0.05 to 0.2 mm and shell powder having a particle size of 5 to 35 μm.

That is, the ocher used in the present invention in an amount of 10 to 15% by weight is composed of fine sand and clay as fine-grained sediments such as grayish yellow quartz or feldspar, and is a clay soil with a size of 0.05 to 0.2 mm. It is a building material that has been widely used in buildings and bricks, and is used as a filler and extender pigment with high adhesion and bonding strength of this composition, and fills the empty space between the calcined bauxite pulverized material, garnet pulverized material, and dolomite pulverized material to make the structure very strong.

In addition, the pulverized shell powder used in an amount of 10 to 18% by weight in the present invention is calcium of 5 to 35 microns with high adhesion and bonding strength, and is used as the final filler and extender pigment of the composition to increase the cohesion of the entire composition together with the binder of the composition. Height represents performance.

Meanwhile, the present invention includes the steps of heating and melting the high-friction anti-skid road surface treatment paving material composition; applying the molten high-friction anti-skid road surface treatment pavement composition to a road surface; and curing the applied high-friction anti-slip road surface treatment pavement composition, but, as shown in [FIG. 1] to [FIG. Before the step of applying to the road surface, after applying masking taping with a width of 5 to 10 cm across the road at intervals of 2 to 5 m in the direction of travel, the molten high-friction anti-slip road surface treatment pavement composition is applied to the road surface, and completely Immediately before curing, the tape is removed to form a drainage channel 3 to 5 mm deep from the road surface, and a strip-shaped anti-skid pavement with a width of 2 to 5 m is constructed.

At this time, as shown in [Fig. 2], the strip-shaped anti-skid pavement surface with a width of 2 to 5 m and the drainage channel with a width of 5 to 10 cm across the road form a downward inclination angle of a certain angle in the downward direction of the slope in the case of an inclined road surface. Drainage flow can be smooth.

[Preparation of high-friction anti-skid road surface treatment paving composition of the present invention]

C ₅ C ₉ 12% by weight of copolymerized petroleum resin, 10% by weight of modified rosin ester, 5% by weight of a mixture of ultra-low density polyethylene and low density polyethylene in a 20:80 weight ratio, 2% by weight of polyethylene wax, 1% by weight of non-volatile plasticizer %, calcined bauxite 35 wt%, garnet pulverized 5 wt%, dolomite pulverized 8 wt%, ocher powder 10 wt%, shell powder 10 wt%, and pigment 2 wt% mixed and heated and melted Thus, the high-friction anti-skid road surface treatment pavement composition of the present invention was prepared.

[Measurement of physical properties]

The slip resistance value, abrasion resistance, and adhesion performance to the road surface of the high-friction anti-slip road surface treatment pavement composition of the present invention were measured as follows, and the results are shown in [Table 1].

(1) Slip resistance value (BPN): Anti-slip performance was measured by the KS F2375 method.

(2) Wear resistance (mg): Wear resistance was measured by the KS M 6080:2009 method. Abrasion paper No. 180 and an abrasion wheel applied a load of 500 g to a specimen rotating in a prescribed abrasion tester, and then abrasion test was performed 100 times at 20 ± 1 ° C according to the test method to measure abrasion loss.

(3) Adhesion to the road surface: A sample was applied to the concrete in a thickness of 2 mm, dried, and then broken with a hammer to determine if it was peeled off with the concrete. At this time, when the sample was well attached to the concrete fragments, it was marked with ◎, when it was slightly peeled off, it was marked with ○, and when it was completely peeled off, it was marked with X.

Slip resistance value (BPN) Abrasion resistance (mg/100 times) adhesion performance Example 1 120 55 ◎

As shown in [Table 1], it can be confirmed that the anti-slip pavement constructed using the high-friction anti-slip road surface treatment pavement composition of the present invention has excellent anti-slip properties, abrasion resistance, and adhesion.

The above description is only illustrative of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the drawings disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these drawings. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims (15)

delete 8 to 12% by weight of C ₅ C ₉ copolymerized petroleum resin with a melting point of 95 to 105 ° C, 5 to 10% by weight of modified rosin ester with a melting point of 95 to 115 ° C, ultra-low density polyethylene and low density polyethylene with a melting point of 95 to 115 ° C. An organic binder composed of 2 to 5% by weight of a mixed resin mixed in a weight ratio of 20:80, 2 to 5% by weight of polyethylene wax having a melting point of 105 to 115 ° C, and 0.5 to 2% by weight of a non-volatile plasticizer; A mixed aggregate composed of 35 to 45% by weight of pulverized calcined bauxite calcined at 1200 to 1700 ° C, 5 to 15% by weight of pulverized Garnet material, and 7 to 17% by weight of pulverized dolomite; An inorganic filler composed of 10 to 15% by weight of ocher powder and 10 to 18% by weight of shell powder; And a high friction non-slip road surface treatment pavement composition in which 2 to 4% by weight of a pigment is mixed,
The mixed resin is a mixed resin obtained by mixing ultra low density polyethylene (VLDPE) having a density of 0.910 and a molecular weight of 82000 and low density polyethylene (LDPE) having a density of 0.960 and a molecular weight of 70000 at a ratio of 20:80,
The calcined bauxite has an Al ₂ O ₃ (aluminum oxide) content of 82 to 87% by weight by heating bauxite ore, a raw material of aluminum, to 1000 to 1700 ° C to remove moisture,
The mixed aggregate is a mixture of calcined bauxite pulverized to a particle size of 2 to 4 mm, Garnet pulverized to a particle size of 1 to 2 mm, and dolomite pulverized to a particle size of 0.3 to 0.7 mm. ,
The inorganic filler is a high friction anti-slip road surface treatment pavement composition characterized in that a mixture of ocher powder with a particle size of 0.05 ~ 0.2mm and shell powder with a particle size of 5 ~ 35um
According to claim 2,
The C ₅ C ₉ copolymer petroleum resin is a cyclic olefin generated in the thermal cracking process of naphtha and having one or more ethylenically unsaturated groups, and isoprene, cyclopentadiene, 1,3-pentadiene (1,3 -pentadiene), 1-pentene (1-pentene), 2-pentene (2-pentene) selected from at least one C ₅ -olefin selected from, indene (indene), α-methyl styrene (α-methyl styrene) High friction anti-slip road surface treatment pavement composition, characterized in that the adhesive resin having a softening point of 80 ℃ ~ 120 ℃ obtained by copolymerization of at least one C ₉ -olefin to be
According to claim 2,
The modified rosin ester is an adhesive auxiliary resin having a softening point of 80 ° C. to 120 ° C. obtained by esterification of rosin and one or more glycols selected from the group consisting of methanol, ethylene glycol, diethylene glycol, glycerol and pentaerythritol. High-friction anti-skid road surface treatment pavement composition
According to claim 4,
The modified rosin ester is a high friction anti-slip road surface treatment paving material composition, characterized in that rosin glycerol ester (ester gum) or rosin pentaerythritol ester
delete According to claim 2,
The non-volatile plasticizer is a colorless sticky liquid plasticizer (DBA) obtained by an esterification reaction of adipic acid and butanol or a colorless sticky liquid plasticizer (DOA) obtained by an esterification reaction of adipic acid and octyl alcohol High friction, characterized in that Non-slip road surface treatment pavement composition
According to claim 2,
The high friction anti-slip road surface treatment pavement composition is a high friction anti-slip road surface treatment pavement composition, characterized in that the composition further comprises 0.2 to 0.5% by weight of a tetraalkyl ammonium bentonite anti-settling agent
According to claim 2,
The high-friction anti-skid road surface treatment pavement composition is characterized in that the composition further comprises 0.1 to 1.5% by weight of an antioxidant.
According to claim 9,
The antioxidant uses a primary antioxidant and a secondary antioxidant to prevent autoxidation by the action of oxygen, but the primary antioxidant is a phenolic 1 that oxidizes instead of a polymer to be protected from oxidation As a primary antioxidant, at least one selected from CAS No. 6683-19-8, 2082-79-3, 1709-70-2, 27676-62-6, 144429-84-5, and 125643-61-0, The secondary antioxidant is a phosphorus-based secondary antioxidant that decomposes and removes oxygen atoms (peroxides) generated in polymers that have already been oxidized, and has a CAS number of 31570-04-4.
delete delete delete heating and melting the high-friction anti-skid road surface treatment pavement composition according to any one of claims 2 to 5 and 7 to 10; applying the molten high-friction anti-skid road surface treatment pavement composition to a road surface; and curing the applied high-friction anti-skid road surface treatment pavement composition, wherein, prior to the step of applying the molten high-friction anti-slip road surface treatment pavement composition to the road surface, 2 to 5 m intervals in the traveling direction on the road surface. After masking taping with a width of 5 to 10 cm across the road every time, the molten high-friction anti-slip road surface treatment pavement composition is applied to the road surface, and the tape is removed immediately before complete curing to drain the road at a depth of 3 to 5 mm from the road surface An anti-slip pavement construction method using a high friction anti-slip road surface treatment pavement composition, characterized in that by forming a 2 to 5 m wide anti-slip pavement surface.
According to claim 14,
The strip-shaped non-slip pavement of 2 to 5 m wide and the drainage of 5 to 10 cm wide across the road make a certain downward slope angle in the downward direction of the slope in the case of a sloped road surface to facilitate drainage flow. Anti-slip pavement construction method using a high-friction anti-slip road surface treatment pavement composition.

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