CN112878137A - Colored anti-skid pavement structure and construction method thereof - Google Patents

Abstract

The invention discloses a colorful anti-skid pavement structure and a construction method thereof. The invention has simple structure, wide application range, short construction period, simple and efficient manufacture, can be used for new road construction, can be used for reconstructing various existing road structures, does not need to adjust street facilities, does not influence drainage, has light weight, does not increase the load bearing of the roadbed, has simple paving process, low construction cost and good economy; compared with the existing road, the paved color road surface can induce traffic, effectively promotes traffic safety, has good water dispersing performance and reduces water splashing; the anti-skid property is excellent, the braking distance can be shortened by about 40 percent, and the locking phenomenon can not be generated during braking; the durability and the impact resistance are good, the service life of a road is prolonged, and the manpower and financial investment for road maintenance are reduced; the noise on the road surface is low, improves the travelling comfort.

Description

Colored anti-skid pavement structure and construction method thereof

Technical Field

The invention relates to a colored anti-skid pavement structure and a construction method thereof, belonging to the technical field of road engineering construction.

Background

With the rapid development of economy in China, the road traffic volume has increased unprecedentedly, and the traditional white (cement concrete) pavement and black (asphalt) pavement can not meet the requirement of economic development on road traffic. Especially, the traffic problem in large cities is very serious, and if the traffic problem cannot be effectively solved and radically treated, the elbow brake is inevitably developed economically. At present, China is in the economic and rapid development stage, population density is high, and road traffic safety becomes a main social problem.

With the gradual improvement of traffic infrastructure, "safety" and "environment" will become two major topics for future road construction. Analyzing the causes of traffic accidents, more than 90% of the traffic accidents are caused by human negligence or errors, and the environment is used as a scene of human activities, is a non-language symbol, has profound influence on the human psychology, and then generates a guiding effect on the human behavior. Therefore, safety and environmental problems are directly related to the mind and behavior characteristics of people. It has been noticed in many countries around the world that paving a colored pavement can induce traffic, effectively promote traffic safety, beautify the environment, give people a good psychological feeling, and have dual attributes of practicality and artistic beauty. Accordingly, colored pavement is attracting interest and interest as a new pavement technology.

In order to reduce and prevent traffic accidents, various countries in the world research and test some functional road marking materials which are arranged at high-incidence points and sections of traffic accidents to replace drivers and improve the safety of roads. According to statistics, 21% -67% of traffic accidents are reduced by arranging colored pavements in Kancoded City, California, USA.

In some places with frequent traffic accidents, such as road intersections, ramps, turns, mountainous roads, narrow roads, deceleration areas, green roads, sidewalks, bicycle lanes, bus lanes, parks, squares, scenic spots and the like, the warning effect provided by adopting a pure colored pavement is not enough to completely improve the safety of the pavement, and the surface structure depth and the friction coefficient of the pavement need to be improved, so that the anti-skid performance of the pavement is improved, namely the colored anti-skid pavement is paved. At the place that traffic accident is frequent, colored anti-skidding road surface can not only play the warning effect, simultaneously because road surface antiskid coefficient promotes, possesses good anti-skidding effect, shortens braking distance, has reduced traffic accident effectively. Therefore, designing a road surface with longer service life for improving the Chinese traffic deterioration is an urgent problem to be solved in the road engineering construction.

Disclosure of Invention

In view of the above, the present invention provides a color antiskid pavement structure and a construction method thereof, which can overcome the defects of the prior art.

The purpose of the invention is realized by the following technical scheme:

the utility model provides a colored antiskid pavement structure, includes the road surface basic unit, has laid resin bonding bottom, colored aggregate resin skid resistant course and the waterproof finish coat of antiskid in proper order from the bottom up on road surface basic unit upper surface.

The thicknesses of the resin bonding bottom layer, the color aggregate resin anti-skid layer and the anti-skid waterproof cover surface layer are respectively 1-2mm, 7-12mm and 2-3 mm.

The front pavement base layer is a cement concrete base layer or an asphalt mixture base layer of which the upper surface is provided with a rough-cut groove structure;

the resin bonding bottom layer is a resin bonding agent for road construction, and the resin bonding agent is a water-based epoxy bonding agent, a water-based polyurethane bonding agent or an unsaturated resin bonding agent;

the anti-slip layer of the color aggregate is composed of a resin binder and a color aggregate, wherein the specific gravity of the resin binder and the color aggregate is 30-50%;

the antiskid waterproof top coat is a thin layer structure formed by self-drying a resin binder and a lithium silicate aqueous solution.

The color aggregate is a color glass aggregate or a color ceramic aggregate which has clear edges and no impurities; the color aggregate has a single particle size of 3-5 mm, a minimum polishing value of more than 45, Mohs hardness of more than 6.8, firmness of more than 12%, a crushing value of less than 15%, a content of elongated flat particles of less than 5%, moisture of less than 0.5%, uniform and consistent color and no obvious color difference.

A construction method of a colorful antiskid pavement comprises the following steps:

s1, performing measurement lofting according to a design drawing;

s2, carrying out pavement base course treatment;

s3, inspecting and repairing the base course of the pavement;

s4, manufacturing the material on site, and brushing the resin binder on the pavement base layer for multiple times to form a resin binder bottom layer;

s5, paving a colorful aggregate resin anti-skid layer on the dried resin bonding bottom layer;

s6, and finally spraying to manufacture the antiskid waterproof cover surface layer.

In the step s1, according to the design drawing, a road centerline and a side line are drawn on the road base layer, and an elevation is measured every 5 meters along the center of the road;

the method comprises the following steps of setting a plurality of leveling piles so as to recheck the nearby road surface during construction, wherein the setting method of the leveling piles comprises the following steps:

arranging a center pile every 20 meters on a road center line according to the elevation and the road arch cross slope; adding a center pile at a curve starting point and a longitudinal slope turning point; setting temporary level points according to buildings fixed on two sides of the route; setting a temporary leveling pile every 100 meters or so.

In the steps s2 and s3, the pavement base course is polished, and floating dust on the surface of the base course is cleaned, so that the surface of the base course is dry and dust-free; and rechecking the base course, and filling and leveling the base course with the damaged or low-out part by using resin mortar, wherein the resin mortar is paved for 4-6 hours.

In the step s4, the resin binder is prepared on site, and the components for preparing the resin binder are proportionally placed into a stirring container and stirred by a motor for at least 10 minutes to prepare the resin binder; wherein the resin binder must be used up within 30 minutes;

in order to enhance the binding force between the pavement and the color aggregate antiskid layer, brushing resin binder on the pavement base layer for 2-3 times to form a resin binder bottom layer, wherein the interval time of each time is 2-4 hours;

in the step s5, the color aggregate resin anti-slip layer (3) is prepared by the following steps:

s5.1, preparing the resin binder again according to the method of the step s4, uniformly pouring the resin binder on a working surface, and scraping the resin binder by using a special adhesive scraper;

s5.2, uniformly spreading aggregate, and then using special sand rakes to lightly smear a colored sand layer to be flat;

s5.3, staying for 15-30 minutes after the aggregates are scattered, and carrying out adhesive tape and trimming operation;

s5.4, after at least 4 hours, recovering the color aggregate so as to recycle;

in the step s5, an anti-slip waterproof cover coat is formed on the anti-slip layer of the color aggregate resin, and the forming process comprises the following steps:

preparing the resin binder again according to the method of the step s4, and brushing a layer of resin binder on the surface of the resin binder after the color aggregates on the color aggregate resin anti-skid layer are recovered to be clean so as to lock floating sand which cannot be completely removed;

and after the resin binder is completely dried, spraying a layer of lithium silicate aqueous solution, and after the resin binder is completely dried, preparing the colored antiskid pavement structure.

Compared with the prior art, the color antiskid pavement structure and the construction method thereof disclosed by the invention comprise a pavement base layer, wherein a resin bonding bottom layer, a color aggregate resin antiskid layer and an antiskid waterproof top coat are sequentially paved on the upper surface of the pavement base layer from bottom to top. The pavement base layer is an original common cement concrete pavement or a common asphalt mixture pavement; or the pavement base structure is manufactured by adopting the existing road manufacturing process, so that the invention can be directly paved on the original cement concrete pavement or asphalt pavement without a special base structure; the anti-slip layer of the colored aggregate resin adopts colored glass or colored ceramic glass aggregate, and the color stability is good; because the adopted aggregate is color glass or color ceramic glass aggregate, the hardness is large, the polishing value is large, the edge angle performance is good, the firmness is good, the color antiskid pavement has excellent skid resistance, good durability and impact resistance, and can keep good road performance under heavy traffic load; and finally, an anti-slip waterproof cover coat is laid on the color aggregate resin anti-slip layer, the resin of the anti-slip waterproof cover coat locks floating sand which cannot be thoroughly removed, the color aggregate is further bonded, a thin layer formed by self-drying lithium silicate water solution of the anti-slip waterproof cover coat has the effects of anti-slip, waterproof and wear-resistant, and the anti-slip performance of the color anti-slip pavement is further improved.

The invention has the beneficial effects that:

(1) the invention has simple structure, wide application range, short construction period, simple and efficient manufacture, can be used for new road construction, can be used for reconstructing various existing road structures, does not need to adjust street facilities, does not influence drainage, has light weight, does not increase the load bearing of the roadbed, has simple paving process, low construction cost and good economy;

(2) compared with the existing road, the road has good water dispersing performance and reduces water splashing; the anti-skid property is excellent, the braking distance can be shortened by about 40 percent, the locking phenomenon can not be generated during braking, and the driving safety is effectively improved; the durability and the impact resistance are good, the service life of a road is prolonged, and the manpower and financial investment for road maintenance are reduced; the noise on the road surface is low, and the driving comfort is improved;

(3) the colored pavement can induce traffic, effectively promote traffic safety, beautify environment, bring good psychological feeling to people and have the dual attributes of practicability and artistic beauty.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings, in which:

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

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are illustrative of the invention only and are not limiting upon the scope of the invention.

Example 1

As shown in fig. 1, a color antiskid pavement structure comprises a pavement base layer 1, wherein a resin bonding bottom layer 2, a color aggregate resin antiskid layer 3 and an antiskid waterproof cover surface layer 4 are sequentially paved on the upper surface of the pavement base layer 1 from bottom to top.

The thicknesses of the resin bonding bottom layer 2, the color aggregate resin anti-skid layer 3 and the anti-skid waterproof cover surface layer 4 are respectively 1-2mm, 7-12mm and 2-3 mm.

The pavement base layer 1 is a cement concrete base layer or an asphalt mixture base layer. The cement concrete base layer is a common cement concrete pavement, and the upper surface of the common cement concrete pavement is provided with a napping and carving groove structure; the asphalt mixture base layer is a common asphalt mixture pavement.

Specifically, the pavement base layer 1 is an original common cement concrete pavement or a common asphalt mixture pavement; or the pavement base structure is manufactured by adopting the existing road manufacturing process.

The resin bonding bottom layer is a resin bonding agent for road construction, and preferably, the resin bonding agent can be a water-based epoxy bonding agent, a water-based polyurethane bonding agent or an unsaturated resin bonding agent.

The water-based epoxy adhesive comprises water-based epoxy resin, a curing agent, an accelerant, a stabilizing agent and a flatting agent, wherein the components in parts by weight are as follows: 2-4 parts of curing agent, 1-2 parts of accelerator, 1-2 parts of stabilizer, 1-2 parts of flatting agent and the balance of waterborne epoxy resin.

The waterborne polyurethane adhesive comprises waterborne polyurethane, a chain extender, a stabilizer and a flatting agent, wherein the components in parts by weight are as follows: 2-4 parts of chain extender, 1-2 parts of stabilizer, 1-2 parts of flatting agent and the balance of waterborne polyurethane;

the unsaturated polyester resin binder comprises unsaturated polyester resin, an initiator, an accelerator and a flatting agent, wherein the components in parts by weight are as follows: 2-4 parts of initiator, 1-2 parts of accelerator, 1-2 parts of flatting agent and the balance of unsaturated polyester resin.

The anti-slip layer 3 is composed of a resin binder and a color aggregate, wherein the specific gravity of the resin binder and the color aggregate is 30-50%.

The color aggregate is clear and clean color glass aggregate or color ceramic aggregate without impurities.

The color aggregate has a single particle size of 3-5 mm, a minimum polishing value of more than 45, Mohs hardness of more than 6.8, firmness of more than 12%, a crushing value of less than 15%, a content of elongated flat particles of less than 5%, moisture of less than 0.5%, uniform and consistent color and no obvious color difference.

The antiskid waterproof cover surface layer 4 is a thin layer structure formed by self-drying of resin binder and lithium silicate aqueous solution.

The construction method based on the colored anti-skid pavement structure specifically comprises the following steps:

s1, performing measurement lofting according to a design drawing;

s2, carrying out the treatment of the pavement base layer 1;

s3, inspecting and repairing the pavement base layer 1;

s4, manufacturing the material on site, and brushing the resin adhesive on the pavement base layer (1) for a plurality of times to form a resin adhesive bottom layer (2);

s5, paving a colorful aggregate resin anti-skid layer 3 on the dried resin bonding bottom layer 2;

s6, spraying to make the antiskid waterproof cover surface layer 4.

Before the construction process, the preparation of required materials and construction equipment is carried out: conveying the resin binder material, the color aggregate and the lithium silicate aqueous solution to a specified working point by a special vehicle; and one 3 kilowatt generator, one engineering vehicle, a special road surface grinding machine, an electric stirrer and a batch of hand-held electric and manual tools are equipped.

In step s1, the original common cement concrete pavement or common asphalt mixture pavement is used as the pavement base layer 1; or the pavement base layer 1 is manufactured by adopting the existing road manufacturing process, the center line and the side line of the road are drawn according to the design drawing, and the elevations are measured every 5 meters along the center of the road;

and a plurality of leveling piles are arranged so as to be convenient for rechecking on the nearby road surface during construction, all inspection and measurement lofting are conducted under the guidance or supervision of a supervision engineer, and the next procedure is conducted after the supervision engineer approves the pavement.

The setting method of the leveling pile comprises the following steps: arranging a center pile every 20 meters on a road center line according to the elevation and the road arch cross slope; adding a center pile at a curve starting point and a longitudinal slope turning point; setting temporary level points according to buildings fixed on two sides of the route; setting a temporary leveling pile every 100 meters or so.

In step s2, the process of treating the pavement base 1 comprises the following steps: and (3) polishing the base layer, polishing the surface layer of the working surface by adopting a special polishing tool, and cleaning floating dust by using a broom, a dust collector and a blower to ensure that the surface of the base layer must be dry and dustless.

In step s3, the primary inspection process includes: and (4) rechecking the base course, and filling and leveling by using resin mortar if the base course is damaged or partially falls out. And after the supervision engineer approves the process, performing the next process. Wherein, according to the material performance, the resin mortar needs to be maintained for 4-6 hours.

Step s4, preparing the resin binder on site, putting the material components into a stirring container according to the proportion, and stirring for at least 10 minutes by adopting a motor to obtain the resin binder; wherein the prepared resin binder must be used up within 30 minutes;

in order to enhance the binding force between the pavement and the color aggregate antiskid layer, 2-3 times of resin binder is coated on the pavement base layer to form a resin binder bottom layer 2, and the time interval of each time depends on the material, weather and environmental conditions, and is preferably 2-4 hours;

in step s5, the manufacturing process of the color aggregate resin anti-slip layer 3 is as follows:

s5.1, preparing the resin binder again according to the method of the step s4, uniformly pouring the resin binder on a working surface, and scraping the resin binder by using a special adhesive scraper;

s5.2, uniformly spreading aggregate, and then using special sand rakes to lightly smear a colored sand layer to be flat;

s5.3, taking out the adhesive tape after a certain time, and trimming;

s5.4, after a period of time, recovering the color aggregate;

in steps s5.1 and s5.2, in order to ensure the binding force of the anti-slip layer of the color aggregate, the resin binder and the color aggregate are used according to the proportion of 30-50%.

In the step s5.3, the adhesive tape is taken out after the bone material is scattered for about 15-30 minutes, and then proper trimming is carried out after the adhesive tape is taken out;

in step s5.4, after at least 4 hours, the floating sand can be recovered, manual recovery or machine recovery can be adopted during recovery, and the recovered color sand is not polluted as much as possible and can be recycled.

In step s6, an anti-slip waterproof cover surface layer 4 is manufactured on the color aggregate resin anti-slip layer 3, and the specific procedures are as follows:

preparing the resin binder again according to the method of the step s4, and brushing a layer of resin binder on the surface of the color aggregate resin anti-slip layer 3 after the color aggregates on the color aggregate resin anti-slip layer are recovered to be clean so as to lock floating sand which cannot be completely removed;

and after the resin binder is completely dried, spraying a layer of lithium silicate aqueous solution, and completely drying to obtain the colored antiskid pavement structure.

And after completion, cleaning the garbage, recovering the color sand, loading the residual materials into a truck, and transporting the residual materials back to a designated warehouse.

Example 2

The existing cement concrete pavement structure is formed by paving common cement concrete by adopting the existing road construction process, and the surface of the cement concrete pavement structure is formed into a napping and grooving structure by adopting a napping process.

Example 3

The existing asphalt pavement structure is formed by paving common asphalt mixture by adopting the existing road construction process, and the upper layer of the asphalt pavement is dense-graded asphalt mixture (AC-13 mixture).

Example 4

The existing asphalt pavement structure is formed by paving common asphalt mixture by adopting the existing road construction process, and the upper surface layer of the asphalt pavement is discontinuous graded asphalt mixture (SMA-13 mixture).

Example 5

The existing asphalt pavement structure is formed by paving common asphalt mixture by adopting the existing road construction process, and the upper surface layer of the asphalt pavement is open-graded asphalt mixture (OGFC-13 mixture).

The following tests are performed on the surfaces of the pavement structures in examples 1 to 5, and the test results are shown in table 1, and it can be seen from table 1 that the surface performance indexes of the pavement structure in example 1 are obviously superior to those of the pavement structures in examples 2 to 5.

TABLE 1 test results

Experiment detection project	Example 1	Example 2	Example 3	Example 4	Example 5	Experimental protocols
							Depth of formation (TD)/mm	3.2	0.5	0.7	1.0	1.5	T 0961—1995
Anti-skid value (BPN)	84	30	48	54	66	T 0964—2008
							Transverse force coefficient SFC60	87	42	53	61	67
Average noise level/dB	66	92	82	76	72

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention without departing from the technical spirit of the present invention are within the scope of the present invention.

Claims (10)

1. The utility model provides a colored antiskid road surface structure which characterized in that: the anti-skid road surface base layer comprises a road surface base layer (1), wherein a resin bonding bottom layer (2), a color aggregate resin anti-skid layer (3) and an anti-skid waterproof finish coat (4) are sequentially paved on the upper surface of the road surface base layer (1) from bottom to top.

2. A colored non-skid pavement structure according to claim 1, characterized in that: the thicknesses of the resin bonding bottom layer (2), the color aggregate resin anti-skid layer (3) and the anti-skid waterproof cover surface layer (4) are respectively 1-2mm, 7-12mm and 2-3 mm.

3. A colored antiskid pavement structure according to claim 2, characterized in that: the pavement base layer (1) is a cement concrete base layer or an asphalt mixture base layer of which the upper surface is provided with a rough-cut groove structure;

the resin bonding bottom layer (2) is a resin bonding agent for road construction, and the resin bonding agent is a water-based epoxy bonding agent, a water-based polyurethane bonding agent or an unsaturated resin bonding agent;

the anti-slip layer (3) is composed of a resin binder and a color aggregate, wherein the specific gravity of the resin binder and the color aggregate is 30-50%;

the antiskid waterproof cover coat (4) is a thin layer structure formed by self-drying a resin binder and a lithium silicate aqueous solution.

4. A colored antiskid pavement structure according to claim 2, characterized in that: the color aggregate is a color glass aggregate or a color ceramic aggregate which has clear edges and no impurities; the color aggregate has a single particle size of 3-5 mm, a minimum polishing value of more than 45, Mohs hardness of more than 6.8, firmness of more than 12%, a crushing value of less than 15%, a content of elongated flat particles of less than 5%, moisture of less than 0.5%, uniform and consistent color and no obvious color difference.

5. The construction method of the colorful antiskid pavement is characterized by comprising the following steps:

s1, performing measurement lofting according to a design drawing;

s2, carrying out the treatment of the road surface base layer (1);

s3, inspecting and repairing the pavement base layer (1);

s4, manufacturing the material on site, and brushing the resin adhesive on the pavement base layer (1) for a plurality of times to form a resin adhesive bottom layer (2);

s5, paving a colorful aggregate resin anti-slip layer (3) on the dried resin bonding bottom layer (2);

s6, and finally spraying to manufacture the antiskid waterproof finish coat (4).

6. The construction method of a colored antiskid pavement according to claim 5, wherein: step s1, drawing a road center line and side lines on the road base layer (1) according to a design drawing, and measuring elevations every 5 meters along the center of the road;

the method comprises the following steps of setting a plurality of leveling piles so as to recheck the nearby road surface during construction, wherein the setting method of the leveling piles comprises the following steps:

arranging a center pile every 20 meters on a road center line according to the elevation and the road arch cross slope; adding a center pile at a curve starting point and a longitudinal slope turning point; setting temporary level points according to buildings fixed on two sides of the route; setting a temporary leveling pile every 100 meters or so.

7. The construction method of a colored antiskid pavement according to claim 2, characterized in that: in the steps s2 and s3, the pavement base layer (1) is polished, floating dust on the surface of the base layer is cleaned, and the surface of the base layer is dry and dustless; and rechecking the base course, and filling and leveling the base course with the damaged or low-out part by using resin mortar, wherein the resin mortar is paved for 4-6 hours.

8. The construction method of a colored antiskid pavement according to claim 2, characterized in that: step s4, preparing the resin binder on site, putting the components for preparing the resin binder into a stirring container according to the proportion, and stirring for at least 10 minutes by adopting a motor to prepare the resin binder; wherein the resin binder must be used up within 30 minutes;

in order to enhance the binding force between the pavement and the color aggregate antiskid layer, resin binder is coated on the pavement base layer for 2-3 times to form a resin binder bottom layer (2), and the interval time of each time is 2-4 hours.

9. The construction method of a colored antiskid pavement according to claim 2, characterized in that: in step s5, the color aggregate resin anti-slip layer (3) is prepared by the following steps:

s5.1, preparing the resin binder again according to the method of the step s4, uniformly pouring the resin binder on a working surface, and scraping the resin binder by using a special adhesive scraper;

s5.2, uniformly spreading aggregate, and then using special sand rakes to lightly smear a colored sand layer to be flat;

s5.3, staying for 15-30 minutes after the aggregates are scattered, and carrying out adhesive tape and trimming operation;

and 5.4, after at least 4 hours, recovering the color aggregate so as to recycle the color aggregate.

10. The construction method of a colored antiskid pavement according to claim 2, characterized in that: in step s6, an anti-skid waterproof finish coat (4) is manufactured on the color aggregate resin anti-skid layer (3), and the manufacturing process comprises the following steps:

preparing the resin binder again according to the method of the step s4, and brushing a layer of resin binder on the surface of the color aggregate resin anti-slip layer (3) after the color aggregates on the color aggregate resin anti-slip layer are recovered to be clean so as to lock floating sand which cannot be completely removed;

and after the resin binder is completely dried, spraying a layer of lithium silicate aqueous solution, and after the resin binder is completely dried, preparing the colored antiskid pavement structure.

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