KR100591536B1 - Colored asphalt and colored asphalt concrete using of the same - Google Patents

Abstract

The present invention relates to a modified colored asphalt and colored ascon using the same as a main raw material, a colored binder of black asphalt, by adding a diluent and a coloring pigment to the desired color.

Therefore, the present invention having the above-described configuration by adding a white filler and coloring pigment to lower the black chromaticity of low-cost black asphalt to express the color, reducing the manufacturing cost compared to the color asphalt using a transparent or semi-transparent binder, and As an eco-friendly construction material that can use waste synthetic resins with various colors, the conventional asphalt concrete using black asphalt, unlike the separate process for applying coloring pigments to conventional transparent binders and the device accordingly, must be installed. Color ascon can be produced in the manufacturing apparatus has the advantage that does not require a separate facility.

Modified, colored asphalt, colored asphalt, colored asphalt, binders, thinners, pigmented pigments

Description

Colored asphalt and colored asphalt concrete using of the same

The present invention relates to a modified colored asphalt and a colored ascon using the same, and more particularly, a colored binder of black asphalt as a main raw material, and a modified color characterized by expressing a desired color by adding a diluent and a coloring pigment thereto. The present invention relates to a color asphalt and a color asphalt using the same.

In general, color asphalt concrete (hereinafter referred to as 'color asphalt') is used for roads, sidewalks, bicycle lanes, roads such as trails, or public places or facilities such as stadium tracks, child protection areas, non-slip areas, parking lots, and parks. It is used as a road pavement construction material that is constructed to promote the safety of drivers and pedestrians and to provide a more beautiful city aesthetic.

In the early stages of the introduction of color asphalt concrete, black asphalt was used as a binder for color asphalt, but because of the dark color of asphalt close to black, it is very dark compared to the color intended to be manufactured. This production caused a limitation of the color representation of the color ascon.

In recent years, various technologies for using transparent or translucent transparent asphalt and transparency binder as binders have been researched and developed, and Korean Patent Application Publication No. 10-349087 (2002. 8. 5) As a transparent or semi-transparent binder instead of asphalt or cement, color ascone or semi-transparent asphalt of Patent Publication No. 10-368873 (registered on Jan. 8, 2003) using process oil, thermoplastic resin, thermoplastic elastomer, and rubbers. Method of manufacturing color ascones for roadway by adding desired color pigments using a colorless binder, or rubber latex, process oil, thermoplastic resin, dispersion pigment, etc. of Patent Publication No. 10-478631 (registered on March 15, 2005) Method of manufacturing a coloring binder for road pavement using or 10-200 5-111093 (published on Nov. 23, 2005) has developed techniques such as colorascon using a modifier of a stabilizer of an amide based polymer mixed with cellulose fibers in a colorless binder, but in the case of the above patents, transparent or translucent as a substitute binder. Disadvantages of color appearance have been overcome through the use of transparent asphalt and transparency binders, but the high manufacturing cost of transparent asphalt causes a sharp rise in the manufacturing cost of color ascon and the construction cost of color asphalt, which raises the burden on consumers. And the patents must be colored by applying a coloring pigment to a white or transparent binder, so it cannot be manufactured by using existing equipment in an ascon manufacturing apparatus using a conventional colored asphalt such as black, and using a separate device. Colored pigments on white or transparent binder To be colored because the complex is a production process, there was also a problem that should have a separate manufacturing apparatus.

Therefore, the present invention for solving the above problems by adding a white diluent and coloring pigments for lowering the black chromaticity of low-cost black asphalt to express the color, reducing the manufacturing cost compared to color asphalt using a transparent or semi-transparent binder It is an object of the present invention to provide a modified colored asphalt and a colored ascon using the same.

In addition, the present invention is to use a synthetic resin of a colored material, unlike the conventional resin must be a transparent material in order to increase the bonding force of the color ascon, it is a reforming characterized in that the environmentally friendly construction material that can be used for the waste synthetic resin of various colors Another object is to provide a color asphalt and a color asphalt using the same.

In addition, the present invention requires a separate facility because it is possible to produce a color ascon from the conventional asphalt concrete manufacturing apparatus using a black asphalt, unlike a separate process and a device for coloring by applying a coloring pigment to the transparent binder. Another purpose is to provide a modified colored asphalt and a colored ascon using the same.

The configuration of the present invention for solving the above problems is as follows.

In the color asphalt consisting of a binder, a modifier, a coloring pigment and a dispersant,

Modified colored asphalt, characterized in that consisting of 10 to 50% by weight of colored asphalt, 20 to 40% by weight of modifier, 5 to 25% by weight of diluent, 20 to 30% by weight of pigmented pigment and 5 to 20% by weight of dispersant. It relates to the used color as cone.

Colored asphalt which is the binder of the present invention serves to increase the binding force between the asphalt and the aggregate, the amount is preferably 10 to 50% by weight. If the amount of colored asphalt is less than 10% by weight, the binding strength with aggregate may be weakened due to the lack of main binder, and if it exceeds 50% by weight, the strength with aggregate is increased. There is a fear that the color by the added pigment is not sufficiently expressed. As the colored asphalt usable in the present invention, it is preferable to use black asphalt, and the color is not necessarily limited to black, and other colored asphalt may be used if necessary.

In the present invention, the color of asphalt is black, which means pure coloring or brown color on a black background.

The modifier of the present invention serves as a modifier to enhance the strength of the asphalt concrete by further strengthening the binding force when the colored asphalt is combined with the aggregate, the amount is preferably 20 to 40% by weight. If the amount of the modifier is less than 20% by weight, asphalt may weaken the binding strength with the aggregate due to the lack of the modifier, and if the amount of the modifier exceeds 40% by weight, the amount of the modifier is excessive. As a result, the strength of the ascon is too high, there is a risk of losing the unique properties of the ascon packaging. Modifiers usable in the present invention may be used by selecting one or more of synthetic resins such as petroleum resin, polyethylene resin, polypropylene resin, polystyrene resin, polyvinyl chloride resin, EVA resin. In addition, the synthetic resins may be used for waste synthetic resins such as colored waste vinyl, waste styrofoam, waste plastic, and the like.

The diluent of the present invention serves to lower the intrinsic chromaticity of the colored asphalt and the color modifier, and the amount of the diluent is preferably 5 to 25% by weight. When the amount of the diluent is less than 5% by weight, the color of black colored asphalt cannot be lowered, so the color of black, which is an intrinsic color of asphalt, may not be sufficiently expressed, and thus the color of added pigment may not be sufficiently expressed. In case of exceeding, the excessive use of diluent may sufficiently reduce the chromaticity of black, which is an inherent color of colored asphalt, but it may also lower the chromaticity of the coloring pigment added at this time, so there is a possibility that the desired color may not be sufficiently expressed. . That is, in the case of producing a red ascone colored binder, when white carbon or titanium dioxide, which is a diluent, is added to the black asphalt within the range of the amount used above, the color of black, which is an intrinsic color of the colored asphalt, is mixed by the white diluent. Will be lowered. At this time, by adding a red or green pigment within the range of usage, it is possible to express the color of the colored asphalt to a red or green color.

The amount of diluent used depends on the type of pigment used to produce the desired color. As an example, when the green color is to be expressed, a darker color such as red is used. By increasing the amount of diluent, the intrinsic chromaticity of the colored asphalt can be lowered as much as possible, and the green pigment can be expressed as much as possible by increasing the amount of the green pigment as compared to the amount of the general red pigment.

The diluents usable in the present invention above are preferably used by selecting one or more of white carbon, titanium dioxide, calcium carbonate, white stone powder, galvanized, clay, white powder, gypsum, and powder.

The coloring pigment of the present invention serves to express the color of the asphalt, the amount is preferably 20 to 30% by weight. If the amount of the pigment used is less than 20% by weight, there is a possibility that sufficient color may not be expressed due to the lack of the pigment used. If the amount of the pigment is more than 30% by weight, the main binder is relatively high due to the use of the pigment. Or the amount of the binding aid is insufficient, there is a fear that the bonding strength between the asphalt and the aggregate is weakened or the strength of ascon is lowered. In addition, the coloring pigments usable in the present invention are preferably red pigments, yellow pigments, or green pigments, and are not necessarily limited to pigments of the above-mentioned colors, and all of the pigments in which vivid colors can be expressed. In addition, the coloring pigment is not limited only to the type of pigment of the specific compound, any color pigments excellent in color expression can be used.

The dispersant of the present invention imparts softness and fluidity to the binder and the binder, and the diluent and the coloring pigment are uniformly dispersed to serve to increase the expression of color, the amount of which is preferably 5 to 20% by weight. If the amount of the diluent is less than 5% by weight, the softness and fluidity of the binder and the binder and the dispersibility of the diluent and the coloring pigment may be deteriorated, which may reduce the expression of color. Due to the increased content, the ductility and fluidity of the binder and the binder is improved, but there is a fear that the bonding strength of the asphalt is lowered. In addition, the dispersant usable in the present invention may be used by selecting one or more of an aromatic process oil, a paraffinic process oil, or a naphthenic process oil.

In addition, the modified colored asphalt according to the present invention may sufficiently express the color of the color, and may be added with conventional additives such as stabilizers, thickeners and the like to maintain the physical properties of the colored asphalt.

And the configuration of the color ascon according to the present invention is as follows.

In the colored asphalt manufactured using a modified colored asphalt,

The colored ascon is composed of 90 to 92% by weight of aggregates, 8 to 10% by weight of modified colored asphalt.

And the modified color asphalt uses 10 to 50% by weight of colored asphalt, 20 to 40% by weight modifier, 5 to 25% by weight diluent, 20 to 30% by weight pigment and 5 to 20% by weight dispersant.

In the present invention, when the amount of aggregate is less than 90% by weight or the amount of modified color asphalt is more than 10% by weight, the binding strength between the modified color asphalt and the aggregate is increased, but there is a concern that the mechanical strength of the color asphalt is lowered. If the amount of aggregate used exceeds 92% by weight or the amount of modified colored asphalt is less than 8% by weight, the binding strength between aggregates may be weakened due to insufficient amount of modified colored asphalt.

As the colored asphalt, it is preferable to use black asphalt.

The aggregate of the color ascon is aggregate, such as coarse aggregate, fine aggregate, filler, etc., which is commonly used, and the mixing ratio is determined by its use or design specification.

Hereinafter, the configuration of the present invention will be described in detail with reference to the following examples, and the present invention is not necessarily limited only by the following examples.

1. Manufacturing of modified color asphalt

According to the ingredients and composition ratios described in Table 1 below, a binder and a modifier were added into the mixer, mixed by heating at 180 ± 5 ° C. for 40 to 50 seconds, and then melted, followed by an aromatic process as a white diluent, a coloring pigment, and a dispersant. An oil was added and heat-mixed at 180 ± 5 ° C., thus producing a modified colored asphalt.

TABLE 1

                                                    (Unit: weight%)

Ingredient Example Comparative example One 2 3 4 One 2 3 4 bookbinder 10 ¹⁾ 50 ¹⁾ 20 ¹⁾ 40 ¹⁾ 45 ¹⁾ 40 ¹⁾ 45 ²⁾ 55 ²⁾ Petroleum resin 40 10 30 20 15 5 15 10 Calcium carbonate 10 15 10 15 20 30 20 - Aromatic oils 10 5 10 5 5 5 5 5 Pigmentation Pigment 30 ³⁾ 20 ⁴⁾ 30 ³⁾ 20 ⁴⁾ 15 ³⁾ 20 ⁴⁾ 15 ³⁾ 20 ⁴⁾

 Note 1) Black asphalt (AP-5 grade).

    2) It is a transparent binder (AP-4 grade).

    3) Red pigment (iron oxide).

    4) Green pigment (phthalocyanine green).

2. Manufacturing of Color Ascon

100 kg of the samples of Examples 1 to 4 and Comparative Examples 1 to 4 were respectively added to a mixer, followed by melting by heating and mixing at a temperature of 180 ± 5 ° C., adding 1 ton of aggregate to a sample in a molten state and heating for 40 to 50 seconds. Prepare by mixing. The aggregate is a mixture of 4 mesh to 13 mm color aggregate, 200 mesh to 4 mesh fine aggregate, and 200 mesh or less filler in a ratio of 6: 1.5: 1.

3. Physical property test of color ascon

The physical property test results of the colored ascone prepared using the modified colored asphalt prepared according to the compounding ratio of [Table 1] are as shown in Table 2 below.

                                   TABLE 2

Properties Reference value Example Comparative example One 2 3 4 One 2 3 4 Density (g / cm 3) - 2.33 2.36 2.34 2.37 2.34 2.31 2.33 2.32 Marshall stability (kgf) More than 350 908 898 905 950 930 895 912 880 Flow value (1/100 cm) 20-40 33 34 33 32 30 31 32 31 color Visual judgment ¹⁾ 5 5 5 5 2 3 4 5

  Note 1) The color shall be determined by visual observation in the following manner.

        Visual inspection is performed by five adult men and women with binocular vision greater than 1.0, and the total score is determined by dividing the score by 10. 5 is clearly expressed in color, 4 is slightly clear in color, and 4 is expressed in color. 3. In case of normal color, 2 is the case of low color expression and 1 is very low.

According to the contents of [Table 2], prepared by using the samples of Examples 1 to 4 and Comparative Examples 1 and 2, which are modified colored asphalt prepared using black asphalt (AP-5 grade) which is a sample of the colored binder. The color ascon was almost similar to the color ascone using the samples of Comparative Examples 3 and 4, which are colored asphalt prepared using a transparent binder (AP-4 grade).

In the case of Examples 1 to 4, the color was determined by using red pigments and green pigments on black asphalt, respectively. In the case of green color was remarkable, but in the case of Comparative Example 3, although the transparent binder was used, it was found that the color of the color less than 1 to 4 in the case of using black asphalt as a diluent of calcium carbide.

In Comparative Examples 1 and 2, too much calcium carbonate, which is a diluent, was used in the black asphalt binder, or the color was usually expressed in low or low colors due to lack of coloring pigments.

Therefore, although the colored ascone prepared according to Examples 1 to 4 used black asphalt as a colored binder, it was found that the expression of the color was the same as compared with Comparative Example 4 using the transparent binder. In the case of Example 3, although the transparent binder was used, it can be seen that the expression of color is lower than that of Examples 1 to 4 using black asphalt.

The modified color asphalt and color asphalt according to the present invention has been described in detail through a number of examples. However, the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art in addition to the above specific embodiments.

Modified color asphalt and color asphalt according to the present invention by the equivalence interpretation in accordance with the proposition that the easy to express the color to be prepared by diluting the original color of the original using a variety of intrinsic color diluents claim Should be considered to belong. And the above theory according to the present invention can be applied to the production of color aggregates, other construction materials in addition to color asphalt and color asphalt.

In addition, the present invention can be easily mixed with the mixed material for ascon through the ascon manufacturing process, any material that does not inhibit the expression of the required properties of the ascon through the above mixing is possible.

Therefore, the present invention having the above-described configuration by adding a white diluent and coloring pigment to lower the black chromaticity of low-cost black asphalt to express the color, to reduce the manufacturing cost compared to the color asphalt using a transparent or semi-transparent binder, and As an eco-friendly construction material that can use waste synthetic resins with various colors, the conventional asphalt concrete using black asphalt, unlike the separate process for applying coloring pigments to conventional transparent binders and the device accordingly, must be installed. Color ascon can be produced in the manufacturing apparatus has the advantage that does not require a separate facility.

Claims (9)

In the color asphalt consisting of a binder, a modifier, a coloring pigment and a dispersant, Modified color asphalt, characterized in that composed of 10 to 50% by weight of colored asphalt, 20 to 40% by weight of modifier, 5 to 25% by weight of diluent, 20 to 30% by weight of pigmented pigment and 5 to 20% by weight of dispersant. The method of claim 1, The colored asphalt is modified colored asphalt, characterized in that the black asphalt. The method of claim 1, The modifying agent is a modified color asphalt, characterized in that one or more selected from synthetic resins such as petroleum resin, polyethylene resin, polypropylene resin, polystyrene resin, polyvinyl chloride resin, EVA resin. The method of claim 1, The diluent is a modified color asphalt, characterized in that one or more selected from among white carbon, titanium dioxide, calcium carbonate, white stone powder, galvanized, clay, soft white, gypsum, arc. The method of claim 1, The coloring pigment is a modified color asphalt, characterized in that the red pigment, yellow pigment or green pigment. The method of claim 1, The dispersant is a modified color asphalt, characterized in that one or more of the aromatic process oil, paraffinic process oil or naphthenic process oil can be selected and used. In the colored asphalt manufactured using a modified colored asphalt, The color ascon is made of aggregate 90 to 92% by weight, modified color asphalt 8 to 10% by weight, The modified color asphalt is composed of 10 to 50% by weight of colored asphalt, 20 to 40% by weight of modifier, 5 to 25% by weight of diluent, 20 to 30% by weight of pigment, and 5 to 20% by weight of dispersant. And the colored asphalt is black asphalt The color as corn characterized by. delete delete