Anti-skid layer pavement structure and construction method

Abstract

The application relates to the technical field of pavement construction, in particular to an anti-skid layer pavement structure and a construction method; the anti-skid layer pavement structure comprises a roadbed layer, an anti-skid layer and a gravel layer, dust and impurities on the surface of the roadbed layer are cleaned, diabase is mixed with softened asphalt in a mixer, meanwhile, epoxy resin is heated to 80-90 DEG C, a curing agent is heated to 60 DEG C, the epoxy resin and the curing agent are mixed after reaching the specified temperature, and are added into the mixer, the mixer continues to be stirred, the anti-skid layer material is obtained, the anti-skid layer material is loaded into a hopper of a paver, the anti-skid layer material is paved by starting the paver, the anti-skid layer material is compacted by starting a road roller, then gravel layer material is scattered on the anti-skid layer material after the initial rolling, the second rolling is carried out by starting the road roller, and the anti-skid pavement is obtained, the anti-skid performance of the road is improved, the vehicle skidding is avoided, and the high-speed driving safety of the vehicle on the road is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the pavement construction technical field, especially to an anti-skid layer pavement structure and a construction method. BACKGROUND

[0002] Highway is an important part of road transportation, and highway paving is an important part of national infrastructure. A large number of highways can improve the speed of economic development, improve the connectivity between cities, and thus improve the convenience of life. At present, highways are usually asphalt pavements, which have been widely used in pavement construction in China due to their flatness, wear resistance, and suitability for driving.

[0003] However, after the construction of highway asphalt pavement, the anti-skid performance gradually decreases with time, which easily leads to vehicle skidding and safety hazards during high-speed driving of vehicles on the road. SUMMARY

[0004] The present application aims to provide an anti-skid layer pavement structure and a construction method, which aims to solve the technical problem that the anti-skid performance of highway asphalt pavement gradually decreases with time, which easily leads to vehicle skidding and safety hazards during high-speed driving of vehicles on the road.

[0005] To achieve the above-mentioned purpose, the present application adopts an anti-skid layer pavement structure, which comprises a roadbed layer, an anti-skid layer and a gravel layer, wherein the roadbed layer, the anti-skid layer and the gravel layer are arranged from bottom to top.

[0006] The present application also provides a construction method for an anti-skid layer pavement, which comprises the following steps:

[0007] Clean the dust and impurities on the surface of the roadbed layer and keep the roadbed surface dry;

[0008] Prepare limestone, diabase, epoxy resin, toughening agent, curing agent and asphalt as raw materials for preparing the anti-skid layer;

[0009] Heat the asphalt to 90-100℃ softening;

[0010] Mix and stir the diabase and the softened asphalt in a mixer, and heat during the mixing process;

[0011] Heat the epoxy resin to 80-90℃ and the curing agent to 60℃, mix the epoxy resin and the curing agent after reaching the specified temperature to obtain a mixture;

[0012] Add the mixture to the mixer and continue stirring to obtain an anti-skid layer material;

[0013] The anti-skid layer material is loaded on the self-unloading vehicle and transported to the construction site, and the anti-skid layer material is unloaded into the hopper of the paver;

[0014] The paver is started to uniformly spread the anti-skid layer material on the roadbed layer, and the spreading temperature is higher than 110-130℃;

[0015] The roller is started to initially compact the anti-skid layer material;

[0016] The gravel layer material is spread on the initially compacted anti-skid layer material, and the roller is started to secondarily compact, so that the gravel layer material on the anti-skid layer plays a caulking effect, and an anti-skid road surface is obtained;

[0017] The anti-skid road surface is maintained.

[0018] In the step of mixing the diabase and the softened asphalt in the mixer and heating during the mixing process:

[0019] The mixing time is 5-10 min.

[0020] In the step of adding the mixture into the mixer, controlling the mixer to continue mixing, and obtaining the anti-skid layer material:

[0021] The mixing time is 30-60 s.

[0022] In the step of starting the paver to uniformly spread the anti-skid layer material on the roadbed layer, and the spreading temperature is higher than 110-130℃:

[0023] The spreading speed is controlled to be 2-6 m / min.

[0024] In the step of maintaining the anti-skid road surface:

[0025] The maintenance time is 8-10 days.

[0026] The anti-skid layer pavement structure and construction method of the present application clean dust and impurities on the surface of the roadbed layer and keep the surface of the roadbed dry, prepare limestone, diabase, epoxy resin, toughening agent, curing agent and asphalt as raw materials for preparing the anti-skid layer, first heat the asphalt to 90-100°C to soften, then mix and stir the diabase and the softened asphalt in a mixer, heat during the mixing process, at the same time, heat the epoxy resin to 80-90°C and the curing agent to 60°C, mix the epoxy resin and the curing agent after reaching the specified temperature to obtain a mixture, then add the mixture into the mixer, continue to stir the mixture to obtain the anti-skid layer material, then load the anti-skid layer material into a self-unloading vehicle to transport to the construction site, unload the anti-skid layer material into the hopper of the paver, start the paver to uniformly spread the anti-skid layer material on the roadbed layer, the spreading temperature should be higher than 110-130°C, then start the road roller to initially compact the anti-skid layer material, then spread the gravel layer material on the anti-skid layer material after the initial compaction, start the road roller to secondarily compact the gravel layer material to achieve the caulking effect of the gravel layer material on the anti-skid layer, thus obtaining the anti-skid pavement, and finally maintain the anti-skid pavement to increase the anti-skid performance of the road, avoid the skidding of the driving vehicle, and improve the high-speed driving safety of the vehicle on the road. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0028] Figure 1 is the step flow chart of the first embodiment of the present application.

[0029] Figure 2 is the step flow chart of the second embodiment of the present application.

[0030] Figure 3 is the step flow chart of the third embodiment of the present application. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application

[0032] The first embodiment is:

[0033] Please refer toFigure 1 , Figure 1 This is a flowchart of the steps of the first embodiment of the present invention. The present invention adopts an anti-skid pavement structure, which includes a road base, an anti-skid layer and a crushed stone layer, wherein the road base, the anti-skid layer and the crushed stone layer are arranged from bottom to top.

[0034] This invention provides a construction method for anti-skid pavement, comprising the following steps:

[0035] S1: Clean the dust and impurities on the surface of the roadbed and keep the roadbed surface dry;

[0036] S2: Prepare limestone, diabase, epoxy resin, toughening agent, curing agent and asphalt as raw materials for preparing the anti-skid layer;

[0037] S3: Soften the asphalt by heating it to 90°C;

[0038] S4: Mix diabase and softened asphalt in a mixing machine for 5 minutes. Heat the mixture during the mixing process to 170°C.

[0039] S5: Heat the epoxy resin to 80°C and the curing agent to 60°C. After reaching the specified temperature, mix the epoxy resin and the curing agent to obtain a mixture.

[0040] S6: Add the mixture into the mixer and control the mixer to continue mixing for 30 seconds to obtain the anti-slip layer material;

[0041] S7: Load the anti-skid layer material into a dump truck and transport it to the construction site, and unload the anti-skid layer material into the hopper of the paver;

[0042] S8: Start the paver to spread the anti-skid layer material evenly on the road base. The paving temperature should be higher than 110℃ and the paving speed should be controlled at 2m / min.

[0043] S9: Start the road roller to perform initial compaction of the anti-slip layer material;

[0044] S10: Spread the crushed stone layer material on the anti-skid layer material after the initial compaction, start the road roller for secondary compaction, and use the crushed stone layer material to fill the joints on the anti-skid layer to obtain an anti-skid pavement.

[0045] S11: Maintenance of anti-skid pavement, maintenance time 8 days.

[0046] In this embodiment, dust and impurities on the surface of the road base are cleaned and the road base surface is kept dry. Limestone, diabase, epoxy resin, toughening agent, curing agent, and asphalt are prepared as raw materials for preparing the anti-skid layer. First, the asphalt is heated to 90°C to soften it. Then, the diabase and softened asphalt are mixed in a mixing mill for 5 minutes. During the mixing process, heating is carried out at a temperature of 170°C. At the same time, the epoxy resin is heated to 80°C and the curing agent is heated to 60°C. After reaching the specified temperature, the epoxy resin and curing agent are mixed to obtain a mixture. The mixture is then added to the mixing mill, and the mixing mill is controlled to continue mixing for 30 seconds to obtain the anti-skid layer material. The anti-skid layer material is then... The anti-skid layer material is loaded onto dump trucks and transported to the construction site. It is then unloaded into the paver's hopper. The paver is started to spread the material evenly on the road base, maintaining a paving temperature above 110℃ and a paving speed of 2 m / min. A roller is then started to perform initial compaction of the anti-skid layer material. Crushed stone material is then spread on top of the initially compacted anti-skid layer, and the roller is started again for secondary compaction. This process seals the joints in the crushed stone layer, creating an anti-skid pavement. Finally, the anti-skid pavement is cured for 8 days. This method increases the road's anti-skid performance, prevents vehicles from skidding, and improves the safety of vehicles traveling at high speeds.

[0047] The second embodiment is as follows:

[0048] Please see Figure 2 , Figure 2 This is a flowchart of the steps of the first embodiment of the present invention. The present invention adopts an anti-skid pavement structure, which includes a road base, an anti-skid layer and a crushed stone layer, wherein the road base, the anti-skid layer and the crushed stone layer are arranged from bottom to top.

[0049] This invention provides a construction method for anti-skid pavement, comprising the following steps:

[0050] S1: Clean the dust and impurities on the surface of the roadbed and keep the roadbed surface dry;

[0051] S2: Prepare limestone, diabase, epoxy resin, toughening agent, curing agent and asphalt as raw materials for preparing the anti-skid layer;

[0052] S3: Soften the asphalt by heating it to 95°C;

[0053] S4: Mix diabase and softened asphalt in a mixing machine for 7.5 minutes. Heat the mixture during the mixing process to 175°C.

[0054] S5: Heat the epoxy resin to 85°C and the curing agent to 60°C. After reaching the specified temperature, mix the epoxy resin and the curing agent to obtain a mixture.

[0055] S6: Add the mixture into the mixer and control the mixer to continue mixing for 45 seconds to obtain the anti-slip layer material;

[0056] S7: Load the anti-skid layer material into a dump truck and transport it to the construction site, and unload the anti-skid layer material into the hopper of the paver;

[0057] S8: Start the paver to spread the anti-skid layer material evenly on the road base. The paving temperature should be above 120℃ and the paving speed should be controlled at 4m / min.

[0058] S9: Start the road roller to perform initial compaction of the anti-slip layer material;

[0059] S10: Spread the crushed stone layer material on the anti-skid layer material after the initial compaction, start the road roller for secondary compaction, and use the crushed stone layer material to fill the joints on the anti-skid layer to obtain an anti-skid pavement.

[0060] S11: Maintenance of anti-skid pavement, maintenance time 9 days.

[0061] In this embodiment, dust and impurities on the surface of the road base are cleaned and the road base surface is kept dry. Limestone, diabase, epoxy resin, toughening agent, curing agent, and asphalt are prepared as raw materials for preparing the anti-skid layer. First, the asphalt is heated to 95°C to soften it. Then, the diabase and softened asphalt are mixed in a mixing mill for 7.5 minutes. During the mixing process, heating is carried out at a temperature of 175°C. At the same time, the epoxy resin is heated to 85°C and the curing agent is heated to 60°C. After reaching the specified temperature, the epoxy resin and curing agent are mixed to obtain a mixture. The mixture is then added to the mixing mill, and the mixing mill is controlled to continue mixing for 45 seconds to obtain the anti-skid layer material. The materials are loaded onto dump trucks and transported to the construction site. The anti-skid layer material is then unloaded into the paver's hopper. The paver is then started to spread the anti-skid layer material evenly on the road base. The paving temperature should be above 120℃, and the paving speed should be controlled at 4m / min. Next, a road roller is started to perform the initial compaction of the anti-skid layer material. Then, a crushed stone layer is spread on the initially compacted anti-skid layer material, and the road roller is started for a second compaction. This crushed stone layer acts as a joint filler on the anti-skid layer, resulting in an anti-skid pavement. Finally, the anti-skid pavement is cured for 9 days. Through the above methods, the anti-skid performance of the road is increased, preventing vehicles from skidding and improving the safety of vehicles driving at high speeds.

[0062] The third embodiment is as follows:

[0063] Please see Figure 3 , Figure 3 This is a flowchart of the steps of the first embodiment of the present invention. The present invention adopts an anti-skid pavement structure, which includes a road base, an anti-skid layer and a crushed stone layer, wherein the road base, the anti-skid layer and the crushed stone layer are arranged from bottom to top.

[0064] This invention provides a construction method for anti-skid pavement, comprising the following steps:

[0065] S1: Clean the dust and impurities on the surface of the roadbed and keep the roadbed surface dry;

[0066] S2: Prepare limestone, diabase, epoxy resin, toughening agent, curing agent and asphalt as raw materials for preparing the anti-skid layer;

[0067] S3: Soften the asphalt by heating it to 100°C;

[0068] S4: Mix diabase and softened asphalt in a mixing machine for 10 minutes. Heat the mixture during the mixing process to 180°C.

[0069] S5: Heat the epoxy resin to 90°C and the curing agent to 60°C. After reaching the specified temperature, mix the epoxy resin and the curing agent to obtain a mixture.

[0070] S6: Add the mixture into the mixer and control the mixer to continue mixing for 60 seconds to obtain the anti-slip layer material;

[0071] S7: Load the anti-skid layer material into a dump truck and transport it to the construction site, and unload the anti-skid layer material into the hopper of the paver;

[0072] S8: Start the paver to spread the anti-skid layer material evenly on the road base. The paving temperature should be higher than 130℃ and the paving speed should be controlled at 6m / min.

[0073] S9: Start the road roller to perform initial compaction of the anti-slip layer material;

[0074] S10: Spread the crushed stone layer material on the anti-skid layer material after the initial compaction, start the road roller for secondary compaction, and use the crushed stone layer material to fill the joints on the anti-skid layer to obtain an anti-skid pavement.

[0075] S11: Maintenance of anti-skid pavement, maintenance time 10 days.

[0076] In this embodiment, dust and impurities on the surface of the road base are cleaned and the road base surface is kept dry. Limestone, diabase, epoxy resin, toughening agent, curing agent, and asphalt are prepared as raw materials for preparing the anti-skid layer. First, the asphalt is heated to 100°C to soften it. Then, the diabase and softened asphalt are mixed in a mixing mill for 10 minutes. During the mixing process, heating is carried out at a temperature of 180°C. At the same time, the epoxy resin is heated to 90°C and the curing agent is heated to 60°C. After reaching the specified temperature, the epoxy resin and curing agent are mixed to obtain a mixture. The mixture is then added to the mixing mill, and the mixing mill is controlled to continue mixing for 60 seconds to obtain the anti-skid layer material. The anti-skid layer material is then... The anti-skid layer material is loaded onto dump trucks and transported to the construction site. It is then unloaded into the paver's hopper. The paver is started to spread the material evenly on the road base, maintaining a paving temperature above 130℃ and a paving speed of 6 m / min. A roller is then started for initial compaction of the anti-skid layer material. Crushed stone material is then spread on top of the initially compacted material, and the roller is started for secondary compaction, effectively sealing the joints in the crushed stone layer to create an anti-skid pavement. Finally, the anti-skid pavement is cured for 10 days. This process increases the road's anti-skid performance, prevents vehicles from skidding, and improves the safety of vehicles traveling at high speeds.

[0077] The above description discloses only one preferred embodiment of the present invention, and should not be construed as limiting the scope of the present invention. Those skilled in the art will understand that all or part of the processes of the above embodiments can be implemented, and equivalent changes made in accordance with the claims of the present invention are still within the scope of the invention.

Claims

1. A skid-resistant pavement structure, characterized in that, It includes a road base layer, an anti-skid layer, and a crushed stone layer, wherein the road base layer, the anti-skid layer, and the crushed stone layer are arranged from bottom to top; The construction method for the anti-skid pavement structure to which the anti-skid layer pavement is applicable includes the following steps: Clean the dust and impurities from the surface of the roadbed and keep the roadbed surface dry; Prepare limestone, diabase, epoxy resin, toughening agent, curing agent and asphalt as raw materials for preparing the anti-skid layer; Soften the asphalt by heating it to 90-100℃; The diabase and softened asphalt are mixed in a mixing machine for 5 to 10 minutes. During the mixing process, the mixture is heated to a temperature of 170 to 180°C. The epoxy resin is heated to 80-90℃, and the curing agent is heated to 60℃. After reaching the specified temperature, the epoxy resin and curing agent are mixed to obtain a mixture. Add the mixture into the mixer and control the mixer to continue mixing for 30-60 seconds to obtain the anti-slip layer material; The anti-skid layer material is loaded onto dump trucks and transported to the construction site, and then unloaded into the hopper of the paver. Start the paver to spread the anti-skid layer material evenly on the road base. The paving temperature should be higher than 110~130℃, and the paving speed should be controlled at 2~6m / min. Start the road roller to perform initial compaction of the anti-slip layer material; The crushed stone layer material is spread on the anti-skid layer material after the initial compaction, and the road roller is started for secondary compaction. The crushed stone layer material on the anti-skid layer has a joint-sealing effect, resulting in an anti-skid pavement. Maintenance of anti-skid pavement should be carried out for 8-10 days.

Images