KR100764726B1 - A manufacturing method for color porous hot mixture - Google Patents

Abstract

A method for preparing a colored drainable pavement mixture is provided to produce the pavement mixture that prevents cracks and plastic deformation, drains a road rapidly, inhibits rainwater from getting spattered, and reduces braking distance. A method for preparing a colored drainable pavement mixture comprising aggregate, a binder, and an inorganic pigment includes the steps of: (a) charging 85-95wt% of aggregates heated to 160-200°C into a mixer; (b) heating 4-10wt% of a colorless binder to 140-170°C and spraying the binder into the mixer, wherein the binder is added with 0.15-1.5 parts by weight, based on 100 parts by weight of the colored drainable pavement mixture, of a modification additive; and (c) charging 1-5wt% of an inorganic pigment thereinto. The modification additive contains (A) 100 parts by weight of vinyl aromatic hydrocarbon-conjugated diene block copolymers having a melt flow of 15g/10minutes, (B) 30-120 parts by weight of an adhesion-imparting resin, (C) 50-120 parts by weight of process oils having an aromatic component content of 25-40wt% and a kinematic viscosity of 400-800mm^2/s at 40°C, and additionally (D) 20-40 parts by weight of rubbers based on 100 parts by weight of the sum of the components (A), (B), and (C).

Description

A manufacturing method for color porous hot mixture}

The present invention relates to a method for manufacturing a mixture for color drainage pavement, and more particularly, to be used in general lanes, bus lanes, pavement parks for children's protection zones, to improve visibility and aesthetics, and to quickly drain water on the surface of rainy weather, causing water film phenomenon. The present invention relates to a method for manufacturing a color drainable pavement mixture for preventing water and preventing water from splashing on a road.

In recent years, urban development and landscaping work have required permeable pavement for the purpose of reducing rainwater to the ground naturally, and various permeable pavements have been developed. Recently, eco-friendly products such as permeable asphalt and permeable concrete have been developed. There is an improvement in the bleak urban environment in which roads are uniformly paved with general asphalt, but it is difficult to harmonize with the surrounding landscape due to the black color of the asphalt itself, and has aesthetic appearance limitations. In addition, some color mixtures have been constructed for harmony with the surrounding landscape, aesthetics, and differentiation from general roads. However, due to the limitations in their physical properties, it is difficult to apply them in the preparation of water-permeable or drainable pavement mixtures.

Therefore, the present invention significantly improves the physical properties of the mixture for general color paving using a modification additive, to prevent cracking and plastic deformation, to drain the road surface quickly to improve the stability of the vehicle running, and to prevent water splashing around. Color drainage that prevents, maintains many air gaps in the pavement, reduces vehicle running noise, shortens the braking distance of the vehicle, and gives various colors to build roads that consider and harmonize with the surrounding landscape and make a difference It is to provide a method for preparing a packaging mixture.

The present invention for achieving the technical problem as described above is based on the mass percentage of 19mm sieve 100%, 13mm sieve 90-100%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2-7% Aggregate having a particle size range of 85 to 95% by weight; Colorless binder 4-10% by weight; Inorganic pigments 1 to 5% by weight; with respect to 100 parts by weight of a color drainable packaging mixture consisting of 100 parts by weight of a vinyl aromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes, a tackifying resin 30 to 120 A mixture for color drainage packaging containing from 50 parts by weight to 120 parts by weight of process oil, and from 0.15 to 1.5 parts by weight of a modifying additive containing 20 to 40 parts by weight of rubber with respect to 100 parts by weight of the total amount of each of these components. It is about.

In addition, the present invention is based on the percent by mass of 25mm sieve 100%, 19mm sieve 95-100%, 13mm sieve 50-80%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2-7% Aggregate having a particle size range of 85 to 95% by weight; 4-10% by weight of a colorless binder; 30 to 120 weight of tackifying resin with respect to 100 weight part of vinyl aromatic hydrocarbon conjugated diene block copolymers whose melt flow value is less than 15 g / 10min with respect to 100 weight part of color drainable packaging mixture which consists of 1-5 weight% of inorganic pigments. To a color drainage packaging mixture containing 50 to 120 parts by weight of process oil and 0.15 to 1.5 parts by weight of a modifying additive containing 20 to 40 parts by weight of rubber with respect to 100 parts by weight of the total amount of these components. will be.

In addition, the present invention aggregate aggregate having a particle size range of 13mm sieve 100%, 10mm sieve 90-100%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2-7% based on the passing mass percentage 85 to 95% by weight; 4-10% by weight of a colorless binder; 30 to 120 parts by weight of a tackifying resin to 100 parts by weight of a vinyl aromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes based on 100 parts by weight of a color drainable packaging mixture consisting of 1 to 5% by weight of an inorganic pigment. The present invention relates to a color drainable packaging mixture containing 50 to 120 parts by weight of process oil, and 0.15 to 1.5 parts by weight of a modifying additive containing 20 to 40 parts by weight of rubber with respect to 100 parts by weight of each of these components. .

Moreover, the said modification additive is characterized in that the aromatic component content of process oil is 25 to 40%, and the dynamic viscosity in 40 degreeC of the process oil exists in the range of 400-800 mm <2> / s.

In addition, the aggregate is characterized in that 0 to 50% by weight of the aggregate aggregate color.

In addition, the aggregate is characterized in that the asphalt recycled aggregate obtained from the waste of the existing pavement using 0 to 100% by weight of the total aggregate.

In addition, the present invention provides a method for producing a mixture for color drainage packaging containing aggregates, binders and inorganic pigments,

Adding 85 to 95% by weight of aggregates heated to 160-200 ° C. into a mixer;

To 100 parts by weight of the vinylaromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes, it contains 30 to 120 parts by weight of tackifying resin and 50 to 120 parts by weight of process oil, and the total amount of these components. 4 to 10% by weight of a colorless binder obtained by adding 0.15 to 1.5 parts by weight of a modifying additive containing 20 to 40 parts by weight of rubber to 100 parts by weight of the mixture for color drainage packaging was heated to 140-170 ° C. to a mixer. Spraying; And

It relates to a method for producing a color drainable packaging mixture comprising; injecting 1-5% by weight of an inorganic pigment.

In addition, the present invention provides a method for producing a mixture for color drainage packaging containing aggregates, binders and inorganic pigments,

Adding 85 to 95% by weight of aggregates heated to 160-200 ° C. into a mixer;

Heating 4-10% by weight of the colorless binder to 140-170 ° C. and spraying it into the mixer;

Adding 1-5% by weight of an inorganic pigment; And

To 100 parts by weight of the vinylaromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes, it contains 30 to 120 parts by weight of the tackifying resin and 50 to 120 parts by weight of the process oil, and the total amount of these components. It relates to a method for producing a colorable packaging mixture comprising a; adding a modified additive containing 20 to 40 parts by weight of rubber based on 100 parts by weight separately from 0.15 to 1.5 parts by weight based on 100 parts by weight of the mixture.

Furthermore, the present invention carries the color drainage pavement mixture prepared by the above method to the field, and after laying the asphalt finisher, the voltage is more than three times with 12-15ton makadem roller at 150-165 ° C, 10- at 110-150 ° C. It relates to a color drainage packaging mixture construction method characterized in that the voltage at least three times with a 14ton tandem roller, at least twice with a tire roller at 80-110 ℃.

The present invention will be described in more detail below.

Colorless binder is used to impart the binding force of the aggregate, it is particularly useful to obtain a good color development quality due to inorganic pigments. The kind of the colorless binder is not particularly limited and may be any colorless binder that can satisfy the same physical properties as those of asphalt useful as a binder of asphalt. The amount of the colorless binder is preferably 3 to 6% by weight in the total color drainable packaging mixture in terms of not impairing excessive rigidity or binding force. In particular, when the amount of the colorless binder is excessively large, the excess binder is present in the asphalt concrete, and the drain down value may increase with the flow of the binder, or the binder may rise to the surface due to compaction during packaging, causing flushing. . In addition, pore blockage may occur due to the flow of the binder in common.

Inorganic pigments of the present invention are natural and / or precipitated calcium carbonate, kaolin, artificial and / or natural aluminum silicates and oxide hydrates, titanium dioxide, satin white, dolomite, mica, metal flakes, especially aluminum Other inorganic pigments known in the prior art, such as flakes, bentonite, rutile, magnesium hydroxide, gypsum, layered silicates, talc, calcium silicate and other rocks and soils, do not harm the properties of the drainable packaging of the present invention. It may be used without limitation to the extent that it does not.

In addition, in the present invention, the color aggregate is coated with a ceramic having excellent durability, chemical resistance, weather resistance, and heat resistance to aggregates crushed natural stone, artificial stone, or sintered stone to a certain particle size, and are used for construction structures or civil engineering. It is well known to those skilled in the art.

The modifying additive of the present invention increases the viscosity of the colorless binder to sufficiently thicken the thickness of the binder film covering the aggregates, thereby reducing the aging of the colorless binders, and increasing the strength and adhesion to promote the adhesion of the aggregates to promote the detachment of the mixture. Will be prevented. In addition, by increasing the grip and cohesion strength aggregates between the aggregates to prevent the desorption of aggregates.

When a drainage mixture is prepared using only a colorless binder without adding a modifying additive, the colorless binder has a low viscosity of 60 ° C., so that the surface of the aggregate cannot be sufficiently thickly coated, and if the colorless binder is not sufficiently thickly coated, the aging of the colorless binder may be accelerated. There is a concern that premature breakage of the pavement may occur, and the adhesion of the aggregates may be lowered, causing the aggregates to scatter. In addition, the viscosity is low, the drain down test value is large. In addition, if the modifying additive is not added, the toughness and tenacity of the colorless binder are small, and the strength of binding aggregates is weak, thereby increasing the risk of aggregate detachment.

The modifying additive used in the present invention contains 30 to 120 parts by weight of the tackifying resin and 50 to 120 parts by weight of the process oil with respect to 100 parts by weight of the vinylaromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes. At the same time, it is an asphalt modifier characterized by containing 20 to 40 parts by weight of rubber with respect to 100 parts by weight of the total amount of these components. Here, the "melt flow value" means a value measured by the method specified in JIS K 7210 "Thermal Testing Method of Thermoplastic Plastics", and the test temperature is 200 ° C and the test load is melt under the conditions of 49.03N. It means the flow value.

Among the modification additives, the aromatic component content of the process oil is 25 to 40%, and the kinematic viscosity at 40 ° C of the process oil is in the range of 400-800 mm 2 / s. If the kinematic viscosity is within this range, the shape retaining properties of the modifying additives will be good, the handleability and processability will be further improved, and in particular, the viscosity of the color drainage packaging mixture will be enhanced.

Hereinafter, each component of the modifying additive will be described in detail.

<Vinyl aromatic hydrocarbon, conjugated diene block copolymer>

The vinylaromatic hydrocarbon conjugated diene block copolymer (hereinafter sometimes referred to simply as block copolymer) used in the present invention is not particularly limited as long as it is generally used as an additive for a packaging material (asphalt, etc.). Or partially or completely hydrogenated or modified with a modifier such as maleic anhydride. Specifically, SBS (styrene butadiene block copolymer), SIS (styrene isoprene block copolymer), SEBS (styrene ethylene butylene block copolymer), etc. can be used.

Usually, it is preferable to use a block copolymer having at least one polymer block (A) mainly composed of vinyl aromatic hydrocarbons, preferably two and a polymer block (B) mainly composed of a conjugated diene compound. It is possible.

The polymer block (A) mainly composed of vinyl aromatic hydrocarbons is more than 50% by weight of vinyl aromatic hydrocarbons, preferably 60 to 100% by weight, more preferably 70 to 100% by weight, still more preferably 80 to 100% by weight. It is a polymer block contained in the ratio of%, It is a polymer block which consists of a homopolymer of vinyl aromatic hydrocarbon, or a vinyl aromatic hydrocarbon and conjugated diene. The distribution of the conjugated diene in the polymer block (A) may be any of random, part, partial block, or a combination thereof.

The polymer block (B) mainly composed of a conjugated diene compound is more than 50% by weight of conjugated diene, preferably 60 to 100% by weight, more preferably 70 to 100% by weight, more preferably 80 to 100% by weight. It is a polymer block contained in the ratio of and is a homoblock of conjugated diene, or a polymer block which consists of conjugated diene and vinyl aromatic hydrocarbon. The distribution of the vinylaromatic hydrocarbon in the polymer block (B) may be any of random, part, partial block or a combination thereof.

The block polymer may be any of a linear structure and a branched structure, and preferably has a structure represented by the following general formulas (a) to (f).

(a) (AB) m, (b) (AB) nA, (c) (BA) mB, (d) ((AB) n) pX, (e) ((BA) m) pX, (f) ( (AB) nA) pX, (g) ((BA) nB) pX

In these general formulas, A is a polymer block (A) mainly composed of vinyl aromatic hydrocarbons, and B is a polymer block (B) mainly composed of conjugated dienes. X is a residue of a polyfunctional coupling agent or a residue of a polyfunctional initiator. m is an integer of 1 or more, Preferably it is an integer of 2 or more, More preferably, it is an integer of 2-6. n is an integer of 1 or more, Preferably it is an integer of 1-6, More preferably, it is 1. p is an integer of 2-6.

The composition ratio of the vinylaromatic hydrocarbon and the conjugated diene in the block copolymer is not particularly limited. However, in order to have a high balance of binder properties such as toughness and rigidity and low temperature characteristics, the weight ratio is 5:95 to 95: 5, preferably 10. : 90-50: 50, More preferably, it is the range of 15: 85-45: 55. The vinyl bond amount of the conjugated diene portion of the block copolymer is not particularly limited, but is usually 90% or less, preferably 1 to 60%, more preferably 5 to 30%. When the amount of vinyl bonds is excessively large, the penetration of the asphalt composition may decrease.

The molecular weight of the block copolymer used in the present invention is not particularly limited, but in order to have a high balance of binder properties such as solubility and penetration into asphalt, toughness, stiffness, low temperature characteristics, and the like, polystyrene reduced weight average molecular weight 10,000 to 1,000,000, preferably 20,000 to 800,000, more preferably 50,000 to 500,000.

The block copolymer used for this invention can be manufactured by polymerizing a vinyl aromatic hydrocarbon and conjugated diene using an organolithium compound in a hydrocarbon catalyst as an initiator by a well-known method. In the polymerization, a polar compound can be used for the purpose of adjusting the reactivity ratio of the vinylaromatic hydrocarbon and the conjugated diene, changing the microstructure of the polymerized conjugated diene portion, adjusting the polymerization rate, and the like.

As a vinyl aromatic hydrocarbon, styrene, (alpha) -methylstyrene, o-methylstyrene, p-methylstyrene, p-t- butyl styrene, 2, 4- dimethyl styrene, vinyl naphthalene, vinyl anthracene etc. are mentioned, for example. Among these, styrene is particularly preferable. Vinyl aromatic hydrocarbons can be used individually or in combination of 2 or more types, respectively.

As conjugated diene, 1, 3- butadiene, isoprene, 1, 3-pentadiene, 2, 3-dimethyl-1, 3-butadiene, 1, 3-hexadiene etc. are mentioned, for example. Among these, 1, 3-butadiene and isoprene are preferable, and 1, 3-butadiene is especially preferable. A conjugated diene can be used individually or in combination of 2 or more types.

As a hydrocarbon solvent used as a polymerization solvent at the time of preparation of a block copolymer, For example, Aliphatic hydrocarbons, such as butane, a pentane, hexane, isopentane, heptane, an octane, an isooctane; Alicyclic hydrocarbons such as cyclopentane, methylcyclopentane, cyclohexane, methylcyclohexane and ethylcyclohexane; Aromatic hydrocarbons, such as benzene, ethylbenzene, and xylene, etc. are mentioned, These are used individually or in mixture of 2 or more types, respectively. The usage-amount of a hydrocarbon solvent is normally used so that monomer concentration may be 1 weight%-50 weight%.

As a polar compound, For example, ether, such as tetrahydrofuran, diethyl ether, anisole, dimethoxybenzene, and ethylene glycol dimethyl ether; Amines such as triethylamine, tetramethylenediamine, N-dimethylaniline and pyridine; Thioethers, phosphines, phosphoamides, alkylbenzenesulfonic acids, alkoxides such as potassium and sodium, and the like, and the like are appropriately selected according to the required performance. The amount of the polar compound to be used is appropriately determined depending on the kind of the compound and required properties, but is usually in the range of 0.001 to 1 mol, preferably 0.01 to 0.5 mol, based on 1 mol of the organolithium compound.

As an organolithium compound used as an initiator, polyfunctional initiators, such as an organic monolithium compound and an organolithium compound, etc. are mentioned, As a specific example, n-butyllithium, sec-butyllithium, tert- butyllithium, n-hexyl lithium, iso-hexyl lithium, phenyl lithium, naphthyl lithium, hexamethylene di lithium, butadienyl di lithium, isoprenyl di lithium, and the like. Generally, organomonolithium compounds are used, and these are used individually or in combination of 2 or more types, respectively. The amount to be used is appropriately selected depending on the molecular weight of the target polymer and the type of the organolithium compound. For example, n-butyllithium is generally used in an amount of 0.001 to 1 part by weight, preferably 0.01 to 1 part by weight based on 100 parts by weight of the monomer. It is the range of 1 weight part.

The polymerization reaction may be either an isothermal reaction or an adiabatic reaction, and is usually carried out at a temperature range of 0 to 150 ° C, preferably 20 to 120 ° C.

Examples of the block copolymer include tin tetrachloride, tin dichloride, tin tetrabromide, silicon tetrachloride, silicon tetrabromide, silicon tetraiodide, germanium tetrachloride, lead dichloride, methyl trichlorosilane, and dimethyl dichloro after the polymerization reaction as described above. Silane, butyltrichlorosilane, dibutyldichlorotin, bistrichlorosilylethane, bistrichlorostanylethane, tetramethoxysilicone, tetramethoxytin, tetraethoxysilicone, tetraethoxytin, tetrabutoxysilicone, Metal compounds such as tetrabutoxytin; Unsaturated nitriles such as ethyl acrylonitrile; Dihalogenated hydrocarbons such as dibromobenzene, dichlorobenzene and dibroethylene; Carbonic acid esters such as dimethyl adipic acid, diethyl adipic acid, ethyl benzoate, dimethyl terephthalate, diethyl terephthalate, dimethyl phthalate and dimethyl isophthalate; Carboxylic acid halides such as terephthalic acid dichloride, phthalic acid dichloride, isophthalic acid dichloride and adipic acid dichloride; Polyfunctional coupling agents, such as carbon tetrachloride, can be used.

These polyfunctional coupling agents are used individually or in mixture of 2 or more types, and their usage is normally 0.01-2 equivalent, preferably 0.05-1.0 equivalent, more preferably 0.1-0.5 equivalent per organolithium compound. to be. Coupling reaction is normally performed at 0 to 150 degreeC in 0.1 to 20 hours.

As the block copolymer, one partially or completely hydrogenated can be used. Hydrogenation includes (1) heterogeneous catalysts in which metals such as Ni, Rt, Pd, and Ru are supported on a carrier such as carbon, silica, alumina, diatomaceous earth, or (2) organic acid salts such as Ni, Co, Fe, Cr, or It is performed using a homogeneous catalyst, such as a Tigra type catalyst using a acetylacetone salt and a reducing agent, such as organic A1, or organic complex catalysts, such as organometallic compounds, such as Ru and Rh. Generally, the method of adding hydrogen in the presence of a hydrogenation catalyst in an inert solvent is employ | adopted.

It is also possible to use a block copolymer prepared by adding a modifier after the polymerization reaction. Examples of the modifier include unsaturated carboxylic acids such as maleic anhydride, imino compounds, cyanamide compounds, adiginyl compounds, and amide compounds.

The vinyl aromatic hydrocarbon conjugated diene block copolymer of the present invention is used alone or in combination of two or more of those having a melt flow value of less than 15 g / 10 min under conditions of a test temperature of 200 ° C. and a test load of 49.03 N (5 kgf). This melt flow value is a value measured by the extrusion speed when the melted thermoplastic synthetic resin is extruded through a die having a predetermined length and diameter. The melt flow value is an index for the fluidity, viscosity, and kinematic viscosity of the thermoplastic synthetic resin in solution. . If the melt flow value is larger than the above-mentioned range, the shape retaining properties of the asphalt modifier are poor, and for example, the asphalt modifiers processed into pellets stick to each other, which causes an obstacle to long-term storage.

<Process oil>

In the present invention, the process oil may be plant oil such as rice bran oil, soybean oil, animal oil such as fish oil, whale oil, petroleum heavy hydrocarbon oil such as cylinder oil, lubricating oil, and the like. In consideration, it is preferable to use petroleum heavy hydrocarbon oil, and especially aromatic hydrocarbon oil. Of course, it is also possible to use the process oil which consists of a paraffinic or a naphthenic hydrocarbon.

The process oil preferably has an aromatic component content in the process oil of 25 to 40% by weight, and a kinematic viscosity at 40 ° C in the range of 400 to 800 mm 2 / s. Here, "aromatic component content" has shown content of the aromatic hydrocarbons, such as benzene, naphthalene, anthracene, and the whole derivative in which various functional groups, such as a vinyl group, were added to these aromatic hydrocarbons. About the aromatic component content of process oil, it can measure in accordance with a conventional method. If the content of the aromatic component and the kinematic viscosity in the process oil exceeds the above ranges, problems such as sticking of the modifier pellets to each other during adhesion or storage of the pelletizer blade when the modifier is processed into pellets are preferable. Not. If the aromatic component content and the kinematic viscosity value in the process oil are lower than the above ranges, the shape retention when the asphalt modifier is processed into, for example, pellets becomes poor. The proportion of the remaining components other than the aromatic components, such as the naphthenic component and the paraffin component, is not particularly limited.

The amount of process oil used is preferably 50 to 120 parts by weight based on 100 parts by weight of the block copolymer. More preferably, it is 50-75 weight part. When the amount of process oil used is less than the minimum, properties such as solubility and elongation in asphalt are lowered, and the draindown value is too high. On the contrary, if the maximum is exceeded, the softening point, toughness, and the like are deteriorated, which is undesirable.

<Adhesiveness grant resin>

The tackifying resin used in the present invention is not particularly limited as long as it is generally used industrially, and examples thereof include coumarone indene resin, phenol resin, pt-butylphenol acetylene resin, phenol formaldehyde resin, Telpene-phenol resins, polytelpenes, xylene-formaldehyde resins, C5 petroleum resins, C9 petroleum resins, dicyclopentadiene resins, polybutenes, rosin and the like, modified products thereof by hydrogenated substances or maleic anhydride Etc. can be mentioned.

These tackifying resins can be used individually or in mixture of 2 or more types, respectively. As for the usage-amount of tackifying resin, 30-120 weight part is preferable with respect to 100 weight part of block copolymers. When the usage-amount of tackifying resin is less than 30 weight part, characteristics, such as the softening point of a packaging material mixture, 60 degreeC viscosity, and dynamic stability, are inferior. In addition, the solubility in the packaging material (asphalt) is also poor, and the draindown value of the final drainable packaging mixture becomes too high. On the contrary, when the usage-amount of tackifying resin exceeds 120 weight part, characteristics, such as toughness and rigidity, of a packaging material mixture fall.

<Rubber>

In the modifying additive of the present invention, 20 to 40 parts by weight of rubber is added to 100 parts by weight of each of the above components, that is, vinyl aromatic hydrocarbon conjugated diene block copolymer, process oil, and tackifying resin. What is necessary is just to use this rubber generally used for industrial products, For example, SBR (styrene-butadiene rubber), chloroprene rubber, natural rubber, polyisoprene rubber, polybutadiene rubber, nitrile rubber, ethylene-propylene rubber, Acrylic rubber, isoprene-isobutyl rubber, etc. can be used. The rubber may be used in an emulsion state or may be used in a solid state. In the case of an emulsion state, when it converts into solid content, 20 weight part or more and 40 weight part or less rubber | gum are added. When the rubber is less than 20 parts by weight, the viscosity of the final drainable pavement mixture is low, the workability is lowered, and when the amount of rubber added is more than 40 parts by weight, the workability of the asphalt modification additive is poor. In addition, physical strength, such as flow resistance, of the packaging mixture is lowered.

As a method of adding rubber, when the block copolymer, the process oil and the tackifying resin are mixed, the rubber is added and mixed under a constant treatment, for example, heating, to obtain a uniform composition, and a predetermined shape and size as necessary. It can be molded. According to this method, it is not necessary to carry and store a modification additive and rubber separately, and labor is not required. In addition, the production efficiency is improved because it is possible to put them at once when mixed in the packaging material.

Another method of adding rubber is a separation method in which a uniform composition is obtained by mixing a block copolymer, a process oil, and a tackifying resin to perform a uniform treatment, and adding rubber when incorporating the composition into a packaging material. That is, when adding a modification additive to a packaging material, you may make it add a rubber component and another component separately like this separation method. According to this system, it is possible to add an appropriate amount of rubber in accordance with the properties of the packaging material.

The amount of aggregate used is preferably 85 to 95% by weight in the packaging mixture substrate, in terms of plastic deformation resistance and high porosity, so it is preferable in terms of drainage packaging.

The preparation of such color drainable packaging mixtures is possible in two ways. The first method comprises the step of adding 85 to 95% by weight of aggregates heated to 160-200 ° C. into the mixer; To 100 parts by weight of the vinylaromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes, it contains 30 to 120 parts by weight of tackifying resin and 50 to 120 parts by weight of process oil, and the total amount of these components. 4 to 10% by weight of a colorless binder obtained by adding 0.15 to 1.5 parts by weight of a modifying additive containing 20 to 40 parts by weight of rubber to 100 parts by weight of the mixture for color drainage packaging was heated to 140-170 ° C. to a mixer. Spraying; And 1-5% by weight of an inorganic pigment.

Another method comprises the step of adding 85 to 95% by weight of aggregates heated to 160-200 ° C into the mixer; Heating 4-10% by weight of the colorless binder to 140-170 ° C. and spraying it into the mixer; Adding 1-5% by weight of an inorganic pigment; And 30 to 120 parts by weight of the tackifying resin and 50 to 120 parts by weight of the process oil, with respect to 100 parts by weight of the vinyl aromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes. It comprises a step of separately adding 0.15 ~ 1.5 parts by weight to a modified additive containing 20 to 40 parts by weight of rubber based on 100 parts by weight of the total amount.

Hereinafter, the present invention will be described in detail with reference to Examples. However, the scope of the present invention is not limited by the description of the Examples.

< Example  1>

160% by weight of aggregate 94% by weight of 19mm sieve 100%, 13mm sieve 90-100%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2-7% After heating and drying at 200 ° C., the mixture was put into a mixer and dried for about 15 seconds, followed by spraying 4.75% by weight of a colorless binder heated at 140 to 160 ° C. to the aggregate for 10 seconds, followed by adding 0.25% by weight of a modifying additive. The mixture was further mixed for about 30 seconds, and 1% by weight of the inorganic pigment was mixed to prepare a color drainable packaging mixture. Using the obtained color drainable packaging mixture, the test specimen for physical properties was prepared by compacting 50 times on both sides at the temperature of the mixture at 160 ° C.

The modifying additive is 30% by weight of styrene-isoprene block copolymer having a melt flow value of 2g / 10min at 200 ° C, 20% by weight of styrene-ethylene / butylene block copolymer having a meltflow value of 6g / 10min at 200 ° C As a resin, 25 weight% of 15 weight% of telpenphenol resins, 40 degreeC kinematic viscosity 425mm <2> / s, and 40 weight% of aromatic components were used as process oil, and 10 weight% of SBR was used for the rubber.

The physical properties test was carried out using asphalt mixtures before and after compacting the Marshall stability and porosity according to the KS F 2351 bitumen mixture's compressive strength test method, and the Cantabro loss rate according to the Cantabros wear test method in the Japanese Drainage Packaging Technical Guidelines. Was carried out. The drain down test was performed using the test method of Chapter 9 of asphalt concrete pavement.

<Example 2>

25% sieve 100%, 19mm sieve 95-100%, 13mm sieve 50-80%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2-7% 94 wt% of the aggregates were dried by heating to 160 ~ 200 ℃. Thereafter, the mixture was put into a mixer, dried for about 15 seconds, and mixed with the aggregate by spraying 5% by weight of the colorless binder heated at 140 to 160 ° C. containing 10% by weight of the additive amount of the colorless binder to the aggregate. 1% of inorganic pigment was added and further mixed for about 30 seconds to prepare a color drainable packaging mixture. Using the obtained color drainable packaging mixture, the test specimen for physical properties was prepared by compacting 50 times on both sides at the temperature of the mixture at 160 ° C.

The modifying additive is 25% by weight of styrene-isoprene block copolymer having a melt flow value of 2g / 10min at 200 ° C, 25% by weight of styrene-butadiene block copolymer having a meltflow value of 1g / 10min or less at 200 ° C, and telphen as a tackifying resin. 22 weight% of 18 weight% phenol resins, 40 degreeC kinematic viscosity 425mm <2> / s, and 40 weight% of aromatic components were used as process oil, and 10 weight% of CR was used for the rubber.

Using the prepared specimens, Marshall stability, porosity, and cantabros loss rate were measured as in Example 1, and a drain down test was conducted using the mixture before compacting. The results are shown in Table 1 below.

Comparative Example 1

In the same manner as in Example 1, a color drainage packaging mixture was prepared, but no modification additives were added. Marshall porosity and cantabro loss rate were measured with respect to the obtained color drainable packaging mixture, and the drain down test was done using the mixture before compacting. The results are shown in Table 1 below.

 Example 1  Example 2  Comparative Example 1 Modified additive addition amount (%, compared to colorless binder)  5  10  0  density  1960  1999  1973  Porosity (%)  21.4  20.2  20.5  Marshall stability (Kgf / ㎠)  985  1140  Not measurable Cantabros Loss Rate (%)  10.2  3.3  50 or more  Dynamic Stability (times / mm)  8438  11550  Not measurable  Draindown value (%)  0.14  0.13  0.47

** Standard: Porosity: 20% or higher, Marshall stability: 500 or higher, Cantabros loss rate: 20 or lower, Dynamic stability: 3000 or higher

Looking at the test results of the physical properties of the mixture of the above table it can be seen that the mixture Marshall stability of the Example has a significantly larger value than the mixture Marshall stability of the Comparative Example. This shows that the mixture of Examples has a higher strength than the mixture of Comparative Examples, and has a greater resistance to various stresses. In addition, it can be seen that the mixture prepared by the method of the example has a higher resistance to scattering of aggregates, desorption of the mixture, and the like. From the results of the drain down experiment, it can be seen that the mixtures of Examples and Comparative Examples in which the same amount of the colorless binder is added have smaller draindown values than the Comparative Examples. This is to increase the flow resistance of the colorless binder by adding a modification additive as in the embodiment, to thicken the colorless binder coating the aggregate.

In addition, Korean Patent Application Laid-Open No. 10-2005-74414 discloses asphalt mixtures of 4 to 8% by weight of the asphalt composition in which 0.1 to 50 parts by weight of the asphalt modifier and 50 to 100 parts by weight of the asphalt are mixed with 92 to 96% by weight of the aggregates. In the mixture, the asphalt modifier is 10 to 60 parts by weight of tackifier resin, mineral process oil, liquid resin and liquid butadiene high part, polybutene, polyisobutylene based on 100 parts by weight of radial styrene-butadiene-styrene mixed base resin It relates to a special asphalt mixture, characterized in that the asphalt modifier composed of 5 to 70 parts by weight of the processing aid selected from oils, fatty oils substituted with a polar functional group. The above-mentioned patent relates to drainage asphalt produced using a soft black straight asphalt as a binder. On the other hand, in the present application, a transparent binder was used. In addition, in the case of the present application, Marshall stability and dynamic stability were significantly higher than those of the above-mentioned patent.

In addition, when comparing Examples 4 and 5 (the modifier was added to 9% by weight of the binder (black asphalt)) and Example 1 of the present invention, the modified additive in the present invention 5% by weight compared to the colorless binder In addition, Marshall stability and dynamic stability were significantly increased.

Table 2 below summarizes the comparison of the two inventions.

Drainage Asphalt Inventive collar drainage packaging material  Binder properties  Softness  River castle  Used binder  Straight asphalt  Colorless binder  color  black  Transparency  Marshall Stability (kg / ㎠)  612-710  985-1,140  Dynamic Stability (times / mm)  5,240-6,280  8,438 ~ 11,550  Porosity (%)  20  20

As described in detail above, the color drainage pavement mixture prepared by adding the modifying additive according to the present invention greatly improves the physical properties of the general color pavement mixture, prevents cracking and plastic deformation, and quickly drains the road surface to drive the vehicle. Improves stability, prevents water splashing around, maintains many voids in the package, reduces vehicle running noise, shortens the braking distance of the vehicle, and provides various colors to enhance harmony and aesthetics with the surrounding landscape. Build roads that are considered and differentiated.

Claims (9)

In the method for producing a mixture for color drainage packaging containing aggregates, binders and inorganic pigments, a) adding 85 to 95% by weight of aggregates heated to 160-200 ° C. into a mixer; b) 4 to 10% by weight of the colorless binder to which 0.15 to 1.5 parts by weight of the modifying additive is added to 100 parts by weight of the color drainage packaging mixture and heated to 140-170 ° C., and sprayed into the mixer; c) adding 1-5% by weight of an inorganic pigment; The modifying additive is   (A) For 100 parts by weight of the vinylaromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes,   (B) 30 to 120 parts by weight of tackifying resin,   (C) Aromatic component content is 25 to 40% by weight, and the kinematic viscosity at 40 ° C contains 50 to 120 parts by weight of process oil in the range of 400 to 800 mm 2 / s,   (D) A method for producing a color drainable packaging mixture, further comprising 20 to 40 parts by weight of rubber with respect to 100 parts by weight of the total amount of the components (A), (B) and (C). In the method for producing a mixture for color drainage packaging containing aggregates, binders and inorganic pigments, a) adding 85 to 95% by weight of aggregates heated to 160-200 ° C. into a mixer; b) heating 4-10% by weight of the colorless binder to 140-170 ° C. and spraying it into the mixer; c) adding 1-5% by weight of an inorganic pigment; And d) (A) To 100 parts by weight of the vinylaromatic hydrocarbon conjugated diene block copolymer having a melt flow value of less than 15 g / 10 minutes.    (B) 30 to 120 parts by weight of tackifying resin,    (C) Aromatic component content is 25 to 40% by weight, and the kinematic viscosity at 40 ° C contains 50 to 120 parts by weight of process oil in the range of 400 to 800 mm 2 / s,    (D) 0.15 to 1.5 weight percent of a modifying additive additionally containing 20 to 40 parts by weight of rubber relative to 100 parts by weight of the total amount of the components (A), (B) and (C), relative to 100 parts by weight of the color drainage packaging mixture. Separately adding step; Method of producing a color mixture for drainage packaging comprising a. The aggregate has a particle size range of 19mm sieve 100%, 13mm sieve 90-100%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2-7% based on the percentage of mass passed. Method for producing a mixture for color drainage packaging characterized in that the aggregate having. The aggregate is 25% sieve 100%, 19mm sieve 95-100%, 13mm sieve 50-80%, 5mm sieve 10-35%, 2.5mm sieve 10-25%, 0.08mm sieve 2 A method for producing a color drainable packaging mixture, characterized in that the aggregate having a particle size range of -7%. The particle size range of the aggregate of 13 mm sieve 100%, 10 mm sieve 90-100%, 5 mm sieve 10-35%, 2.5 mm sieve 10-25%, 0.08 mm sieve 2-7% Method for producing a mixture for color drainage packaging characterized in that the aggregate having. delete The method according to any one of claims 1 to 5, A method for producing a color drainable packaging mixture, characterized in that more than 0% by weight to 50% by weight of the aggregate is a color aggregate. The method according to any one of claims 1 to 5, Aggregate is a method for producing a color drainage pavement mixture, characterized in that the recycled aggregate obtained from the waste of the existing pavement using more than 0% by weight 100% by weight of the total aggregate. The color drainage pavement mixture prepared by the method of claim 1 or 2 is transported to the site, and after the asphalt finisher is placed, a voltage of at least three times with a 12-15 ton makadem roller at 150-165 ° C and 10 at 110-150 ° C. -14ton tandem roller at least three times the voltage, 80-110 ℃ at least two times with a tire roller voltage roller packaging construction method characterized in that the packaging.