A road structure steel bridge pavement laying process

Abstract

The present invention provides a road structure steel bridge pavement paving process, which belongs to the technical field of bridge and highway engineering. The road structure steel bridge pavement paving process comprises the following steps: cracks, loose objects and oil stains on the bridge base are treated. Waterproof coiled material is laid on top of the wall base. Heated asphalt particles are laid on the upper layer of the waterproof coiled material. Emulsified asphalt adhesive is evenly sprayed on the asphalt layer, and the emulsified asphalt adhesive penetrates into the waterproof coiled material along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt adhesive is compacted using a road roller. The method of spraying the emulsified asphalt adhesive on the loose asphalt layer and then compacting the asphalt layer using a compacting device can make the emulsified asphalt adhesive fully contact with the asphalt particles, improve the bonding performance between the asphalt particles in the asphalt layer, and the asphalt particles on the surface of the asphalt layer are less likely to fall off, which has a better protective effect on the asphalt layer.

Description

Technical Field

[0001] The invention relates to the field of bridge and highway engineering, and in particular to a road structure steel bridge pavement paving process. Background Art

[0002] The asphalt paving technology of bridge pavement is a complex and delicate process. The process flow of asphalt paving on bridge pavement mainly includes key steps such as pre-construction preparation, asphalt paving, asphalt paving construction, construction precautions, construction quality inspection and post-construction maintenance to ensure that the paved asphalt layer has excellent durability and driving comfort.

[0003] After the asphalt pavement in the prior art is laid, after a period of vehicle rolling, due to the poor adhesion between the particles on the asphalt surface, asphalt particles are easily detached from the asphalt surface, which then causes the asphalt pavement to become bumpy, affecting the comfort of vehicle driving. Summary of the invention

[0004] In order to make up for the above shortcomings, the present invention provides a road structure steel bridge pavement paving process, which aims to improve the problem of asphalt particles falling out due to poor surface adhesion of the asphalt layer.

[0005] The present invention is achieved in that:

[0006] The present invention provides a road structure steel bridge pavement paving process, comprising the following steps:

[0007] S1: Bridge deck base construction treatment, cracks, loose objects and oil stains on the bridge base are treated, and base treatment agent is applied to enhance the bonding strength between the waterproof membrane and the base;

[0008] S2: Construction and treatment of the road surface waterproof layer. After applying the base treatment agent on the bridge deck base, apply the adhesive layer, and then lay the waterproof membrane on the wall base;

[0009] S3: laying asphalt granules, laying the heated asphalt granules on the upper layer of the waterproof membrane;

[0010] S4: Spray the emulsified asphalt adhesive evenly on the asphalt layer. The emulsified asphalt adhesive penetrates into the waterproof membrane along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt adhesive is compacted using a roller.

[0011] In one embodiment of the present invention, after the asphalt layer in step S4 is laid, the emulsified asphalt glue is sprayed on the asphalt layer at a certain interval.

[0012] In one embodiment of the present invention, the spraying amount of the emulsified asphalt glue is 0.5 to 0.9 kilograms per square meter.

[0013] In one embodiment of the present invention, the amount of emulsified asphalt glue sprayed on the asphalt particles in the early stage of road rolling in step S4 is 3.6-4.5 kilograms per square meter.

[0014] In one embodiment of the present invention, the material used to fill the cracks in the bridge base surface in step S1 is one of modified asphalt, epoxy resin, and polyurethane material.

[0015] In one embodiment of the present invention, the pavement waterproofing membrane in step S2 is a modified asphalt waterproofing membrane or a synthetic polymer waterproofing membrane.

[0016] In one embodiment of the present invention, the modified asphalt waterproof membrane is at least one of an SBS modified asphalt waterproof membrane or an APP modified asphalt waterproof membrane.

[0017] In one embodiment of the present invention, the synthetic polymer waterproof membrane is at least one of an EPDM rubber waterproof membrane, a PVC waterproof membrane or a TPO waterproof membrane.

[0018] The beneficial effects of the present invention are as follows: the present invention obtains a highway structural steel bridge pavement paving process through the above-mentioned design, and the method of spraying emulsified asphalt glue on the loose asphalt layer and then using compaction equipment to compact the asphalt layer can make the emulsified asphalt glue fully contact with the asphalt particles, thereby improving the bonding performance between the asphalt particles in the asphalt layer, and the asphalt particles on the surface of the asphalt layer are less likely to fall off, which has a better protective effect on the asphalt layer, and also improves the service life of the asphalt layer on the road surface. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Example 1

[0021] The present invention provides a road structure steel bridge pavement paving process, comprising the following steps:

[0022] S1: Bridge deck base construction treatment, cracks, loose objects and oil stains on the bridge base are treated, and base treatment agent is applied to enhance the bonding strength between the waterproof membrane and the base;

[0023] S2: Construction and treatment of the road surface waterproof layer. After applying the base treatment agent on the bridge deck base, apply the adhesive layer, and then lay the waterproof membrane on the wall base;

[0024] S3: laying asphalt granules, laying the heated asphalt granules on the upper layer of the waterproof membrane;

[0025] S4: Spray the emulsified asphalt adhesive evenly on the asphalt layer. The emulsified asphalt adhesive penetrates into the waterproof membrane along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt adhesive is compacted using a roller.

[0026] The present invention discloses a road surface paving process for a highway structural steel bridge. The cracks, loose materials and oil stains on the bridge base are treated, and a base treatment agent is applied to enhance the bonding force between the waterproof coiled material and the base. After the base treatment agent is applied to the bridge deck base, a glue layer is applied, and then the waterproof coiled material is laid on the wall base. After that, the heated asphalt particles are laid on the upper layer of the waterproof coiled material. Finally, the emulsified asphalt glue is evenly sprayed on the asphalt layer, and the emulsified asphalt glue penetrates into the waterproof coiled material along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt glue is compacted using a road roller. The method of spraying the emulsified asphalt glue on the loose asphalt layer and then compacting the asphalt layer using a compaction device can make the emulsified asphalt glue fully contact with the asphalt particles, improve the bonding performance between the asphalt particles in the asphalt layer, and the asphalt particles on the surface of the asphalt layer are less likely to fall off, which has a better protective effect on the asphalt layer and also improves the service life of the asphalt layer on the road surface.

[0027] In the above specific implementation, after the asphalt layer in step S4 is laid, the emulsified asphalt glue is sprayed onto the asphalt layer at a certain interval. The spraying amount of the emulsified asphalt glue is 0.5 kg per square meter. The emulsified asphalt glue is subsequently sprayed onto the surface of the asphalt layer so that the emulsified asphalt glue can continue to fill in the gaps in the asphalt layer to stabilize and improve the bonding performance between the asphalt layer and the emulsified asphalt glue.

[0028] Furthermore, the amount of emulsified asphalt glue sprayed on the asphalt particles in the early stage of road rolling in step S4 is 3.6 kilograms per square meter.

[0029] In the specific setting, the material used for filling the cracks on the bridge base surface in step S1 is one of modified asphalt, epoxy resin, and polyurethane material. Among them, modified asphalt is suitable for cracks with larger crack widths and has good adhesion and weather resistance. Polyurethane coating has the characteristics of high elasticity, wear resistance, chemical corrosion resistance, etc., and is suitable for filling various cracks. Epoxy resin has the characteristics of high strength, high adhesion, chemical corrosion resistance, etc., and is suitable for filling cracks that require high-strength bonding.

[0030] Specifically, the pavement waterproofing membrane in step S2 is a modified asphalt waterproofing membrane or a synthetic polymer waterproofing membrane. The modified asphalt waterproofing membrane is at least one of SBS modified asphalt waterproofing membrane or APP modified asphalt waterproofing membrane. SBS modified asphalt waterproofing membrane is a rollable sheet waterproofing material made of SBS rubber modified petroleum asphalt as a coating material, fiber fabric or fiber felt as a matrix, and powder, granular, sheet or film material as a covering material. The performance characteristics are good low-temperature flexibility, high heat resistance, good elongation, long service life, simple construction, and low pollution. APP modified asphalt waterproofing membrane is a waterproofing membrane made of polyester tire, glass fiber felt, glass fiber reinforced polyester felt as a tire base, random polypropylene (APP) or polyolefin polymers (APAO, APO, etc.) as a petroleum asphalt modifier, and both sides are covered with isolation materials. The performance characteristics are good low-temperature flexibility and high temperature resistance, good water resistance, strong abrasion resistance, and a wide range of applications.

[0031] Furthermore, the synthetic polymer waterproofing membrane is at least one of EPDM rubber waterproofing membrane, PVC waterproofing membrane or TPO waterproofing membrane. EPDM rubber waterproofing membrane is a high-elastic rubber waterproofing membrane made of EPDM rubber as the main body, mixed with appropriate chemical additives and a certain amount of filling materials, and processed through processes such as batching, mixing, filtering, extrusion molding, vulcanization, inspection, rolling, and packaging. The performance characteristics include high elongation at break, good high and low temperature resistance, strong corrosion resistance, and high construction technology requirements. PVC waterproofing membrane is a polymer waterproofing membrane made of PVC resin with imported additives such as plasticizers, UV inhibitors, anti-aging agents, stabilizers, etc. The performance characteristics include super aging resistance, chemical corrosion resistance, excellent low-temperature flexibility, good dimensional stability, good plasticity, and convenient and reliable detail processing. TPO waterproofing membrane adopts polymerization technology, with thermoplastic polyolefin (TPO) synthetic resin formed by combining ethylene propylene rubber and polypropylene as base material, and polycool or glass fiber mesh cloth as internal reinforcement material to make a sheet-shaped rollable waterproof material. Performance characteristics include excellent tensile properties, tear resistance, puncture resistance; excellent high and low temperature weather resistance; excellent corrosion resistance, toxic bacteria resistance, anti-aging and UV resistance; hot air welding, convenient construction, high seam peeling strength.

[0032] Example 2

[0033] The present invention provides a road structure steel bridge pavement paving process, comprising the following steps:

[0034] S1: Bridge deck base construction treatment, cracks, loose objects and oil stains on the bridge base are treated, and base treatment agent is applied to enhance the bonding strength between the waterproof membrane and the base;

[0035] S2: Construction and treatment of the road surface waterproof layer. After applying the base treatment agent on the bridge deck base, apply the adhesive layer, and then lay the waterproof membrane on the wall base;

[0036] S3: laying asphalt granules, laying the heated asphalt granules on the upper layer of the waterproof membrane;

[0037] S4: Spray the emulsified asphalt adhesive evenly on the asphalt layer. The emulsified asphalt adhesive penetrates into the waterproof membrane along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt adhesive is compacted using a roller.

[0038] The present invention discloses a road surface paving process for a highway structural steel bridge. The cracks, loose materials and oil stains on the bridge base are treated, and a base treatment agent is applied to enhance the bonding force between the waterproof coiled material and the base. After the base treatment agent is applied to the bridge deck base, a glue layer is applied, and then the waterproof coiled material is laid on the wall base. After that, the heated asphalt particles are laid on the upper layer of the waterproof coiled material. Finally, the emulsified asphalt glue is evenly sprayed on the asphalt layer, and the emulsified asphalt glue penetrates into the waterproof coiled material along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt glue is compacted using a road roller. The method of spraying the emulsified asphalt glue on the loose asphalt layer and then compacting the asphalt layer using a compaction device can make the emulsified asphalt glue fully contact with the asphalt particles, improve the bonding performance between the asphalt particles in the asphalt layer, and the asphalt particles on the surface of the asphalt layer are less likely to fall off, which has a better protective effect on the asphalt layer and also improves the service life of the asphalt layer on the road surface.

[0039] In the above specific implementation, after the asphalt layer in step S4 is laid, the emulsified asphalt glue is sprayed onto the asphalt layer at a certain interval. The spraying amount of the emulsified asphalt glue is 0.7 kg per square meter. The emulsified asphalt glue is subsequently sprayed onto the surface of the asphalt layer so that the emulsified asphalt glue can continue to fill in the gaps in the asphalt layer to stabilize and improve the bonding performance between the asphalt layer and the emulsified asphalt glue.

[0040] Furthermore, the amount of emulsified asphalt glue sprayed on the asphalt particles in the early stage of road rolling in step S4 is 4 kilograms per square meter.

[0041] In the specific setting, the material used for filling the cracks on the bridge base surface in step S1 is one of modified asphalt, epoxy resin, and polyurethane material. Among them, modified asphalt is suitable for cracks with larger crack widths and has good adhesion and weather resistance. Polyurethane coating has the characteristics of high elasticity, wear resistance, chemical corrosion resistance, etc., and is suitable for filling various cracks. Epoxy resin has the characteristics of high strength, high adhesion, chemical corrosion resistance, etc., and is suitable for filling cracks that require high-strength bonding.

[0042] Specifically, the pavement waterproofing membrane in step S2 is a modified asphalt waterproofing membrane or a synthetic polymer waterproofing membrane. The modified asphalt waterproofing membrane is at least one of SBS modified asphalt waterproofing membrane or APP modified asphalt waterproofing membrane. SBS modified asphalt waterproofing membrane is a rollable sheet waterproofing material made of SBS rubber modified petroleum asphalt as a coating material, fiber fabric or fiber felt as a matrix, and powder, granular, sheet or film material as a covering material. The performance characteristics are good low-temperature flexibility, high heat resistance, good elongation, long service life, simple construction, and low pollution. APP modified asphalt waterproofing membrane is a waterproofing membrane made of polyester tire, glass fiber felt, glass fiber reinforced polyester felt as a tire base, random polypropylene (APP) or polyolefin polymers (APAO, APO, etc.) as a petroleum asphalt modifier, and both sides are covered with isolation materials. The performance characteristics are good low-temperature flexibility and high temperature resistance, good water resistance, strong abrasion resistance, and a wide range of applications.

[0043] Furthermore, the synthetic polymer waterproofing membrane is at least one of EPDM rubber waterproofing membrane, PVC waterproofing membrane or TPO waterproofing membrane. EPDM rubber waterproofing membrane is a high-elastic rubber waterproofing membrane made of EPDM rubber as the main body, mixed with appropriate chemical additives and a certain amount of filling materials, and processed through processes such as batching, mixing, filtering, extrusion molding, vulcanization, inspection, rolling, and packaging. The performance characteristics include high elongation at break, good high and low temperature resistance, strong corrosion resistance, and high construction technology requirements. PVC waterproofing membrane is a polymer waterproofing membrane made of PVC resin with imported additives such as plasticizers, UV inhibitors, anti-aging agents, stabilizers, etc. The performance characteristics include super aging resistance, chemical corrosion resistance, excellent low-temperature flexibility, good dimensional stability, good plasticity, and convenient and reliable detail processing. TPO waterproofing membrane adopts polymerization technology, with thermoplastic polyolefin (TPO) synthetic resin formed by combining ethylene propylene rubber and polypropylene as base material, and polycool or glass fiber mesh cloth as internal reinforcement material to make a sheet-shaped rollable waterproof material. Performance characteristics include excellent tensile properties, tear resistance, puncture resistance; excellent high and low temperature weather resistance; excellent corrosion resistance, toxic bacteria resistance, anti-aging and UV resistance; hot air welding, convenient construction, high seam peeling strength.

[0044] Example 3

[0045] The present invention provides a road structure steel bridge pavement paving process, comprising the following steps:

[0046] S1: Bridge deck base construction treatment, cracks, loose objects and oil stains on the bridge base are treated, and base treatment agent is applied to enhance the bonding strength between the waterproof membrane and the base;

[0047] S2: Construction and treatment of the road surface waterproof layer. After applying the base treatment agent on the bridge deck base, apply the adhesive layer, and then lay the waterproof membrane on the wall base;

[0048] S3: laying asphalt granules, laying the heated asphalt granules on the upper layer of the waterproof membrane;

[0049] S4: Spray the emulsified asphalt adhesive evenly on the asphalt layer. The emulsified asphalt adhesive penetrates into the waterproof membrane along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt adhesive is compacted using a roller.

[0050] The present invention discloses a road surface paving process for a highway structural steel bridge. The cracks, loose materials and oil stains on the bridge base are treated, and a base treatment agent is applied to enhance the bonding force between the waterproof coiled material and the base. After the base treatment agent is applied to the bridge deck base, a glue layer is applied, and then the waterproof coiled material is laid on the wall base. After that, the heated asphalt particles are laid on the upper layer of the waterproof coiled material. Finally, the emulsified asphalt glue is evenly sprayed on the asphalt layer, and the emulsified asphalt glue penetrates into the waterproof coiled material along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt glue is compacted using a road roller. The method of spraying the emulsified asphalt glue on the loose asphalt layer and then compacting the asphalt layer using a compaction device can make the emulsified asphalt glue fully contact with the asphalt particles, improve the bonding performance between the asphalt particles in the asphalt layer, and the asphalt particles on the surface of the asphalt layer are less likely to fall off, which has a better protective effect on the asphalt layer and also improves the service life of the asphalt layer on the road surface.

[0051] In the above specific implementation, after the asphalt layer in step S4 is laid, the emulsified asphalt glue is sprayed onto the asphalt layer at a certain interval. The spraying amount of the emulsified asphalt glue is 0.9 kg per square meter. The emulsified asphalt glue is subsequently sprayed onto the surface of the asphalt layer so that the emulsified asphalt glue can continue to fill in the gaps in the asphalt layer to stabilize and improve the bonding performance between the asphalt layer and the emulsified asphalt glue.

[0052] Furthermore, the amount of emulsified asphalt glue sprayed on the asphalt particles in the early stage of road rolling in step S4 is 4.5 kg per square meter.

[0053] In the specific setting, the material used for filling the cracks on the bridge base surface in step S1 is one of modified asphalt, epoxy resin, and polyurethane material. Among them, modified asphalt is suitable for cracks with larger crack widths and has good adhesion and weather resistance. Polyurethane coating has the characteristics of high elasticity, wear resistance, chemical corrosion resistance, etc., and is suitable for filling various cracks. Epoxy resin has the characteristics of high strength, high adhesion, chemical corrosion resistance, etc., and is suitable for filling cracks that require high-strength bonding.

[0054] Specifically, the pavement waterproofing membrane in step S2 is a modified asphalt waterproofing membrane or a synthetic polymer waterproofing membrane. The modified asphalt waterproofing membrane is at least one of SBS modified asphalt waterproofing membrane or APP modified asphalt waterproofing membrane. SBS modified asphalt waterproofing membrane is a rollable sheet waterproofing material made of SBS rubber modified petroleum asphalt as a coating material, fiber fabric or fiber felt as a matrix, and powder, granular, sheet or film material as a covering material. The performance characteristics are good low-temperature flexibility, high heat resistance, good elongation, long service life, simple construction, and low pollution. APP modified asphalt waterproofing membrane is a waterproofing membrane made of polyester tire, glass fiber felt, glass fiber reinforced polyester felt as a tire base, random polypropylene (APP) or polyolefin polymers (APAO, APO, etc.) as a petroleum asphalt modifier, and both sides are covered with isolation materials. The performance characteristics are good low-temperature flexibility and high temperature resistance, good water resistance, strong abrasion resistance, and a wide range of applications.

[0055] Furthermore, the synthetic polymer waterproofing membrane is at least one of EPDM rubber waterproofing membrane, PVC waterproofing membrane or TPO waterproofing membrane. EPDM rubber waterproofing membrane is a high-elastic rubber waterproofing membrane made of EPDM rubber as the main body, mixed with appropriate chemical additives and a certain amount of filling materials, and processed through processes such as batching, mixing, filtering, extrusion molding, vulcanization, inspection, rolling, and packaging. The performance characteristics include high elongation at break, good high and low temperature resistance, strong corrosion resistance, and high construction technology requirements. PVC waterproofing membrane is a polymer waterproofing membrane made of PVC resin with imported additives such as plasticizers, UV inhibitors, anti-aging agents, stabilizers, etc. The performance characteristics include super aging resistance, chemical corrosion resistance, excellent low-temperature flexibility, good dimensional stability, good plasticity, and convenient and reliable detail processing. TPO waterproofing membrane adopts polymerization technology, with thermoplastic polyolefin (TPO) synthetic resin formed by combining ethylene propylene rubber and polypropylene as base material, and polycool or glass fiber mesh cloth as internal reinforcement material to make a sheet-shaped rollable waterproof material. Performance characteristics include excellent tensile properties, tear resistance, puncture resistance; excellent high and low temperature weather resistance; excellent corrosion resistance, toxic bacteria resistance, anti-aging and UV resistance; hot air welding, convenient construction, high seam peeling strength.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A road structure steel bridge pavement paving process, characterized in that: The steps include: S1: Bridge deck base construction treatment, cracks, loose objects and oil stains on the bridge base are treated, and base treatment agent is applied to enhance the bonding strength between the waterproof membrane and the base; S2: Construction and treatment of the road surface waterproof layer. After applying the base treatment agent on the bridge deck base, apply the adhesive layer, and then lay the waterproof membrane on the wall base; S3: laying asphalt granules, laying the heated asphalt granules on the upper layer of the waterproof membrane; S4: Spray the emulsified asphalt adhesive evenly on the asphalt layer. The emulsified asphalt adhesive penetrates into the waterproof membrane along the gaps between the asphalt particles in the asphalt layer, and the asphalt layer with the emulsified asphalt adhesive is compacted using a roller.

2. A road structure steel bridge pavement paving process according to claim 1, characterized in that: After the asphalt layer in step S4 is laid, the emulsified asphalt glue is sprayed on the asphalt layer at a certain interval.

3. A road structure steel bridge pavement paving process according to claim 2, characterized in that: The spraying amount of the emulsified asphalt glue is 0.5 to 0.9 kilograms per square meter.

4. A road structure steel bridge pavement paving process according to claim 1, characterized in that: The amount of emulsified asphalt glue sprayed on the asphalt particles in the early stage of road rolling in step S4 is 3.6-4.5 kilograms per square meter.

5. The highway structural steel bridge pavement paving process according to claim 1, characterized in that: The material used to fill the cracks on the bridge base surface in step S1 is one of modified asphalt, epoxy resin and polyurethane material.

6. A highway structural steel bridge pavement paving process according to claim 1, characterized in that: The pavement waterproofing membrane in step S2 is a modified asphalt waterproofing membrane or a synthetic polymer waterproofing membrane.

7. A road structure steel bridge pavement paving process according to claim 6, characterized in that: The modified asphalt waterproofing membrane is at least one of SBS modified asphalt waterproofing membrane and APP modified asphalt waterproofing membrane.

8. A road structure steel bridge pavement paving process according to claim 6, characterized in that: The synthetic polymer waterproofing membrane is at least one of EPDM waterproofing membrane, PVC waterproofing membrane or TPO waterproofing membrane.