阅读说明：本技术 一种sp彩绘沥青基础面施工方法 (SP colored drawing asphalt foundation surface construction method ) 是由 毛以卫 陈缘 孙航 苏展超 厉振杰 于 2021-06-15 设计创作，主要内容包括：本发明提供一种SP彩绘沥青基础面施工方法,包括素土层、水泥砂砾层、沥青层以及彩绘层,彩绘层包括依次设置在沥青层上的底层、加强层、彩绘涂层以及保护膜层,彩绘层为高分子聚合物涂料和高强度耐磨骨料的混合物,彩绘层的施工方法包括在沥青层路面上勾划出不同区域的彩色部位图案轮廓；手持喷枪对图案轮廓内依次喷涂底层和加强层；在加强层上手工用细毛刷蘸彩色涂料绘制图案；在绘制的图案上用喷雾器均匀喷洒一层彩色路面保护膜层；对喷洒保护膜层的炉门进行封闭养护。既能够使沥青路面具有丰富的造型及赏心悦目的色彩,使传统沥青路面光彩亮丽,又能够保护沥青路面,使彩色路面的效果具有高强度、高耐磨、高延展性、高粘着力和高抗污性的特点。(The invention provides a construction method of an SP colored drawing asphalt foundation surface, which comprises a plain soil layer, a cement gravel layer, an asphalt layer and a colored drawing layer, wherein the colored drawing layer comprises a bottom layer, a reinforcing layer, a colored drawing coating layer and a protective film layer which are sequentially arranged on the asphalt layer; spraying a bottom layer and a reinforcing layer in the pattern contour by a handheld spray gun in sequence; manually dipping the color paint on the reinforcing layer by a fine hairbrush to draw patterns; uniformly spraying a layer of colorful pavement protection film on the drawn pattern by using a sprayer; and sealing and maintaining the furnace door sprayed with the protective film layer. The asphalt pavement has the advantages of being rich in modeling and attractive in color, enabling the traditional asphalt pavement to be bright and beautiful, protecting the asphalt pavement, and enabling the color pavement to have the advantages of being high in strength, wear resistance, ductility, adhesion and dirt resistance.)

1. A construction method of SP colored drawing asphalt foundation surface is characterized by comprising the following steps: comprises a rammed plain soil layer, a cement gravel layer arranged on the plain soil layer, and an asphalt layer arranged on the cement gravel layer, wherein the asphalt layer is provided with a colored drawing layer, the colored drawing layer comprises a bottom layer, a reinforcing layer, a colored drawing coating layer and a protective film layer which are sequentially arranged on the asphalt layer, the colored drawing layer is a mixture of high-molecular polymer coating and high-strength wear-resistant aggregate, and the construction method of the colored drawing layer comprises the following steps of,

firstly, drawing the color part pattern outlines of different areas on the asphalt layer pavement;

secondly, spraying a bottom layer and a reinforcing layer in the pattern contour by a handheld spray gun in sequence;

dipping the color paint on the reinforcing layer manually by using a fine hairbrush to draw patterns;

step four, uniformly spraying a layer of colorful pavement protection film layer on the drawn pattern by using a sprayer;

and step five, performing closed maintenance on the furnace door sprayed with the protective film layer, wherein the maintenance time is not less than 48 hours when the temperature is above 30 ℃ in the maintenance period, and the maintenance time is not less than 96 hours when the temperature is below 15 ℃.

2. The SP colored drawing asphalt foundation surface construction method as claimed in claim 1, which is characterized in that: the asphalt of the back layer is required to adopt AC-10 fine particle type modified asphalt.

3. The SP colored drawing asphalt foundation surface construction method as claimed in claim 1, which is characterized in that: the bottom layer and the reinforcing layer are sprayed with a Street Bond 120A/B coating and a Street Bond150A/B coating respectively, and the protective film layer is a Street Bond protective film.

4. The SP colored drawing asphalt foundation surface construction method as claimed in claim 3, wherein: when the bottom layer and the reinforcing layer are sprayed, the spray gun is held by hand, the height of the spray gun is 30-40 cm away from a pattern contour area corresponding to the colored drawing ground, the spray gun nozzle moves in a reciprocating spiral track to spray the colored coatings of the bottom layer and the surface layer in sequence, the hairbrush follows the spray gun, the colored coatings are uniformly coated on the area defined by the pattern contour, and the reinforcing layer and the like are sprayed after the bottom layer is dried.

5. The SP colored drawing asphalt foundation surface construction method as claimed in claim 1, which is characterized in that: the thickness of the colored drawing layer is 0.8-1 mm.

6. The SP colored drawing asphalt foundation surface construction method as claimed in claim 1, which is characterized in that: the construction temperature of the colored drawing pavement is between 5 and 35 ℃, and the construction can not be carried out in rainy and snowy days and when the pavement is wet.

7. The SP colored drawing asphalt foundation surface construction method as claimed in any one of claims 1 to 6, which is characterized in that: when the original asphalt pavement is sprayed with the colored drawing layer, the original asphalt pavement needs to be comprehensively detected, the flatness, compactness and good drainage of the asphalt pavement are checked, and whether water accumulation exists in rainy days or not is checked, and if the problem exists, the asphalt pavement is repaired firstly, and the spraying treatment is carried out after the pavement is kept clean.

Technical Field

The invention relates to the technical field of building construction, in particular to a construction method of an SP colored drawing asphalt foundation surface.

Background

At present, with the improvement of the demand and the change of the environment, colored patterns need to be drawn on the asphalt ground to increase the aesthetic degree of the road surface, and the colored drawing on the asphalt ground is generally divided into two types, one is to perform colored drawing after newly building a base asphalt road surface, and the other is to perform colored drawing on the original asphalt ground, for example, runways of places suitable for sports such as a plurality of sports centers, stadiums, schools, outdoor fitness runways and the like which are built before are adopted, because the building time is relatively early, and the runways are in an outdoor open-air state in many cases, although the original foundation of the engineering is the asphalt ground, the strength is firm, the ground flatness is good, but the open-air loop asphalt ground is easy to be damaged in the long-term use process, therefore, the runways need to be renovated, however, no matter when the colored drawing on the original asphalt ground or the newly built asphalt ground, the pattern formed by the existing colored drawing mode has poor color beauty, poor adhesion effect, no protection effect on asphalt pavement, easy fading phenomenon in the long-term use process, and poor wear resistance, ductility and dirt resistance of the color drawing on the inside of the conventional asphalt.

Disclosure of Invention

In order to solve some or some technical problems in the prior art, the invention provides the SP colored drawing asphalt base surface construction method, which can enable the asphalt pavement to have rich shapes and pleasing colors, enables the traditional asphalt pavement to be bright and beautiful, can protect the asphalt pavement, and enables the color pavement to have the characteristics of high strength, high wear resistance, high ductility, high adhesion and high dirt resistance.

In order to solve the above-mentioned existing technical problem, the invention adopts the following scheme:

a SP colored drawing asphalt foundation surface construction method comprises a rammed plain soil layer, a cement gravel layer arranged on the plain soil layer, and an asphalt layer arranged on the cement gravel layer, wherein a colored drawing layer is arranged on the asphalt layer, the colored drawing layer comprises a bottom layer, a reinforcing layer, a colored drawing coating layer and a protective film layer which are sequentially arranged on the asphalt layer, the colored drawing layer is a mixture of high-molecular polymer coating and high-strength wear-resistant aggregate, the construction method of the colored drawing layer comprises the following steps,

firstly, drawing the color part pattern outlines of different areas on the asphalt layer pavement;

secondly, spraying a bottom layer and a reinforcing layer in the pattern contour by a handheld spray gun in sequence;

dipping the color paint on the reinforcing layer manually by using a fine hairbrush to draw patterns;

step four, uniformly spraying a layer of colorful pavement protection film layer on the drawn pattern by using a sprayer;

and step five, performing closed maintenance on the furnace door sprayed with the protective film layer, wherein the maintenance time is not less than 48 hours when the temperature is above 30 ℃ in the maintenance period, and the maintenance time is not less than 96 hours when the temperature is below 15 ℃.

Further, the asphalt of the back layer requires the use of AC-10 fine particle type modified asphalt.

Further, the bottom layer and the reinforcing layer are sprayed with a Street Bond 120A/B coating and a Street Bond150A/B coating respectively, and the protective film layer adopts a Street Bond protective film.

Further, when the bottom layer and the reinforcing layer are sprayed, the spray gun is held by hand, the height of the spray gun is 30-40 cm away from a pattern contour area corresponding to the colored drawing ground, the gun nozzle moves in a reciprocating spiral track to spray the colored coatings of the bottom layer and the surface layer in sequence, the brush follows the spray gun, the colored coatings are uniformly coated in the area defined by the pattern contour, and the reinforcing layer and the like are sprayed after the bottom layer is dried.

Further, the thickness of the colored drawing layer is 0.8-1 mm.

Furthermore, the construction temperature of the colored drawing pavement is between 5 and 35 ℃, and the colored drawing pavement cannot be constructed in rainy and snowy days and when the pavement is wet.

Furthermore, when the original asphalt pavement is sprayed with the colored drawing layer, the original asphalt pavement needs to be comprehensively detected, the flatness, compactness and good drainage of the asphalt pavement are checked, and whether water accumulation exists in rainy days or not is checked, and if the problem exists, the asphalt pavement is repaired firstly, and the pavement is kept clean and then is sprayed.

Compared with the prior art, the invention has the beneficial effects that:

the high-molecular polymer paint and the high-strength wear-resistant aggregate are adopted to carry out color coating on the asphalt pavement, the color of the asphalt pavement can be added after the color coating, the coating effect has the characteristics of high strength, high wear resistance, high ductility, high adhesion, high dirt resistance and the like, the application of the SP-top high-molecular polymer color painting technology enables the asphalt pavement to have rich shapes and pleasing colors, the asphalt pavement has the characteristics of protecting the pavement and brightening the traditional asphalt pavement, the color painted pavement has good flatness, beautiful appearance and strong color contrast, and is suitable for tourist roads, green roads, bicycle tracks, large squares, playgrounds, parking lots, kindergartens and the like.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

In the figure: the soil comprises a plain soil layer 1, a cement sand gravel layer 2, an asphalt layer 3, a bottom layer 4, a reinforcing layer 5, a colored drawing coating layer 6, a protective film layer 7 and a colored drawing layer 8.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 1, a construction method of SP colored drawing asphalt base surface includes a rammed plain soil layer 1, a cement sand gravel layer 2 arranged on the plain soil layer 1, and an asphalt layer 3 arranged on the cement sand gravel layer 2, wherein a colored drawing layer 8 is arranged on the asphalt layer 3, the colored drawing layer 8 includes a bottom layer 4, a reinforcing layer 5, a colored drawing coating layer 6 and a protective film layer 7 which are arranged on the asphalt layer 3 in sequence, the colored drawing layer 8 is a mixture of high molecular polymer paint and high-strength wear-resistant aggregate, the construction method of the colored drawing layer 8 includes,

firstly, drawing the color part pattern outlines of different areas on the road surface of an asphalt layer 3;

secondly, spraying a bottom layer 4 and a reinforcing layer 5 in the pattern contour by a handheld spray gun in sequence;

dipping the color paint on the reinforcing layer 5 manually by using a fine hairbrush to draw patterns;

step four, uniformly spraying a layer of colorful pavement protection film layer 7 on the drawn pattern by using a sprayer;

and step five, performing closed maintenance on the furnace door sprayed with the protective film layer 7, wherein the maintenance time is not less than 48 hours when the temperature is more than 30 ℃ in the maintenance period, and the maintenance time is not less than 96 hours when the temperature is less than 15 ℃.

The adopted high molecular polymer coating and the high-strength wear-resistant aggregate are used for carrying out color coating on the asphalt pavement, the color of the asphalt pavement can be added after the color coating, and the coating effect has the characteristics of high strength, high wear resistance, high ductility, high adhesion, high dirt resistance and the like. The application of the SP-tipped high polymer colored drawing technology enables the asphalt pavement to have rich shapes and pleasing colors, and has the characteristics of protecting the pavement and enabling the traditional asphalt pavement to be bright and beautiful. Meanwhile, the colored drawing road has good flatness, beautiful appearance and strong color contrast, and is suitable for tourist roads, green roads, bicycle tracks, large squares, playgrounds, parking lots, kindergartens and the like.

The colored drawing pavement has the outstanding advantages of attractive appearance, striking look and skid resistance, can meet the due pavement performance requirement of a common pavement as a pavement structure, and can be sprayed and colored drawn on various asphalt concrete pavements or cement concrete pavements, so that the pavement is bright in color and more convenient to shape.

The following work is required before spraying:

(1) and (4) checking the flatness, compactness and good drainage of the asphalt pavement and whether the problem of water accumulation exists in rainy days.

(2) For disease treatment, for example, dirt such as mud blocks and the like which cannot be removed by a dust blower on the road surface needs to be manually removed by a small tool shovel; when engine oil or other oil stains are encountered, the oil stains are firstly cleaned by a cleaning agent, then cleaned by clean water and finally dried.

(3) And dust blowing, namely blowing dust and small stones on the asphalt pavement out of the pavement by using the strong blowing force of a gasoline dust blower to keep the pavement clean.

The color blending of each coating is kept consistent during layer construction, and the local color difference of the same color is not allowed to occur, so that the overall effect is distorted; after the edge folding and painting, the edge folding line is straight and is not allowed to have a sawtooth shape; the paint is firmly adhered to the surface layer, and is not hollowly and crack-free on the surface; the grains on the surface of the coating are consistent; the surface is smooth, wear-resisting and skid-proof, and the design requirements are met.

The further improvement is that the asphalt of the inner layer is required to adopt AC-10 fine particle type modified asphalt; the bottom layer 4 and the reinforcing layer 5 are sprayed with Street Bond 120A/B paint and Street Bond150A/B paint respectively, and the protective film layer 7 adopts a Street Bond protective film; when the bottom layer 4 and the reinforcing layer 5 are sprayed, a hand-held spray gun is used for spraying at a height of 30-40 cm away from a pattern contour area corresponding to the painted ground, a gun nozzle moves in a reciprocating spiral track to be vertical to the ground to successively spray the color coatings of the bottom layer 4 and the surface layer, a brush follows the spray gun, the color coatings are uniformly coated in the area defined by the pattern contour, and the reinforcing layer 5 and the bottom layer 4 are sprayed after being dried; the thickness of the colored drawing layer 8 is 0.8-1 mm.

If the coating hardness is not high, the coating is easy to wear, and many water-based coatings wear quickly under the soaking of moisture and rainwater, and have no flexible effect, if the coating is too hard and has no ductility, the coating can crack on the asphalt surface, and can damage the asphalt per se, if the anti-skid and friction increase is not considered, the pavement coating can form potential threats to pedestrians and vehicles, and meanwhile, common coatings often fade under the action of ultraviolet rays, so that the overall design effect and the use experience are influenced, the road surface inevitably contacts various vehicle leakage liquids, and if the coating does not have excellent chemical properties, the road surface can be corroded and damaged quickly. The SteetBond coating is not corroded by chemicals such as engine oil, gasoline, snow melting agent and the like, so that the bottom layer 4 asphalt is protected, the abrasion resistance and the impact resistance of the SteetBond coating are far higher than those of the original pavement, the SteetBond coating has ductility, is suitable for severe day-night temperature difference change, contains all water-based components, has no solvent damaging the environment, can be recycled by 100 percent along with the asphalt, and does not need to be thrown and washed completely, partially damaged and maintained locally on the whole pavement during maintenance. If the asphalt is kept at a normal temperature and a constant temperature, the asphalt has an extension force, so that the generation of pavement cracks is reduced, the ultraviolet resistance function is realized, the urban heat island effect is reduced, the pavement temperature is reduced, and the service life is prolonged.

The further improvement is that the construction temperature of the colored drawing pavement is between 5 and 35 ℃, and the colored drawing pavement cannot be constructed in rainy and snowy days and when the pavement is wet.

The further improvement is that when the original asphalt pavement is sprayed with the colored drawing layer 8, the original asphalt pavement needs to be comprehensively detected, the flatness, compactness and good drainage of the asphalt pavement are checked, and whether water accumulation exists in rainy days or not is checked, and if the problem exists, the asphalt pavement is repaired firstly, and the pavement is kept clean and then is sprayed.

When the original basic road surface of the engineering is an asphalt road surface, the original basic road surface has firm strength and better ground flatness; after the original base surface is treated, SB (StreetBond)120, SB (StreetBond)150 and a manual local colored drawing and spraying protective layer can be directly sprayed, and the adopted material is water-soluble high-molecular polymer paint. And (3) performing on-site pavement treatment, cleaning, paying off and coating stirring, and performing operation construction by using a cold spray type spraying machine.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.