A concrete pavement structure for steel bridge decks and a method of paving the same

Abstract

The application relates to the technical field of building engineering, and provides a concrete paving structure for a steel bridge deck and a paving method thereof, the paving structure comprising an anticorrosion layer on a steel bridge deck plate, a second-order solidified epoxy resin layer on the anticorrosion layer, and an asphalt concrete layer on the second-order solidified epoxy resin layer; the asphalt concrete layer contains a modifier with graphite nanosheets, SIS, UHMWPE, epoxy resin and naphthenic oil as main components; the application realizes significant improvement of the deformation followability of the paving structure by forming a specific second-order solidified epoxy resin layer and forming an asphalt concrete layer modified by a specific modifier on the second-order solidified epoxy resin layer, and the strength, the shear resistance and the fatigue resistance of the overall paving structure are improved. In addition, the paving structure has simple construction mode and wide application range.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building engineering, and particularly relates to a concrete paving structure for steel bridge deck and a paving method thereof. BACKGROUND

[0002] The bridge deck pavement layer is directly laid on the cement concrete or steel bridge deck plate, and the steel bridge deck paving structure needs to be able to withstand the load from the vehicle and the bridge itself, including the vertical load, lateral force, longitudinal force and the like. In addition, under the comprehensive action of climatic environment and geological factors, the deformation and stress thereof are far more complex than those of the highway pavement, and thus higher requirements are imposed on the strength, stability, fatigue durability and the like of the paving material.

[0003] The epoxy asphalt concrete and the cast asphalt concrete have excellent performance and good durability, and have been used as a typical scheme for steel bridge deck paving. However, the temperature during the paving of the cast asphalt concrete is as high as 210-260 DEG C, the steel plate is easily deformed by heat, and the deformation following performance of the paving material is required to be very high, and cracks are more likely to occur. At the same time, the cast asphalt concrete using the self-flow paving cannot be paved on the steel bridge deck with a large slope. The construction of the epoxy asphalt concrete is difficult, and the requirements on the time and temperature during the construction are very strict, which can directly affect the success or failure of the epoxy asphalt concrete paving. In the process of opening the traffic, due to the poor interlayer adhesion and low shear strength between the paving layers or between the paving layer and the bridge deck plate, the common diseases such as interlayer displacement, bumping, delamination and the like are caused on the bridge deck. Due to the insufficient strength of the concrete, especially in summer, the temperature of the bridge deck is much higher than that of the road surface, and the rutting and displacement diseases are easily aggravated.

[0004] In view of this, the present application is provided. SUMMARY

[0005] The present application provides a concrete paving structure for steel bridge deck and a paving method thereof, so as to solve the defects that the epoxy asphalt concrete and the cast asphalt concrete in the existing steel bridge deck paving scheme cannot be further optimized in the construction, strength, shear resistance and durability and the like. By forming a specific second-order cured epoxy resin layer and forming an asphalt concrete layer modified by a specific modifier on the second-order cured epoxy resin layer, the deformation following performance of the paving structure is significantly improved, the strength and shear resistance of the overall paving structure are improved, and the fatigue resistance is strengthened.

[0006] Specifically, the present application provides a concrete paving structure for steel bridge deck, comprising: a corrosion-proof layer located on a steel bridge deck plate, a second-order cured epoxy resin layer located on the corrosion-proof layer, and an asphalt concrete layer located on the second-order cured epoxy resin layer.

[0007] The asphalt concrete layer contains a modifier with graphite nanosheets, SIS, UHMWPE, epoxy resin and naphthenic oil as main components.

[0008] As described above, compared with conventional highways, the pavement structure suitable for steel bridge deck often faces more complex load environment, and the bridge deck climate is complex, especially more sensitive to temperature, and the existing steel bridge deck pavement scheme is difficult to further optimize in construction and durability, and the present application finds that by forming a specific second-order cured epoxy resin layer and forming an asphalt concrete layer modified by a specific modifier thereon, specifically, after the A component and the B component of the second-order cured epoxy resin are applied on the corrosion-proof layer, the first curing at room temperature is carried out, and the strength can meet the rolling of the construction vehicle, when the asphalt mixture is paved on the material after the first curing, the temperature of the asphalt concrete itself is relatively high, generally about 160 DEG C, which can promote the epoxy resin to accelerate the curing reaction, and under the action of high temperature, the epoxy resin softens, and the rolling mixture forms an embedded structure in the bonding layer, so that after the second epoxy resin reaction, the second-order cured epoxy resin layer and the asphalt concrete layer are connected closely and integrally, and the waterproof, corrosion-proof and bonding effects are considered, and the deformation follow-up property of the pavement structure is significantly improved, the strength and shear resistance of the overall pavement structure are improved, and the fatigue resistance of the pavement structure is strengthened.

[0009] The graphite nanosheet in the present application can select a material with a tensile strength of 5GPa, a density of 1000kg / m 3 , and a specific surface area of 20m 2 / g. Other materials containing graphene can also be used, but considering the cost performance and overall effect of modified asphalt, the present application preferentially selects graphite nanosheet.

[0010] According to the steel bridge deck concrete pavement structure provided by the present application, the pavement structure is composed of a corrosion-proof layer on the steel bridge deck plate, a second-order cured epoxy resin layer on the corrosion-proof layer, and an asphalt concrete layer of 4-6cm on the second-order cured epoxy resin layer.

[0011] The above pavement structure makes the pavement layer and the steel plate form an integral whole, and has outstanding waterproof, corrosion-proof, shear-resistant and anti-rutting performance, eliminates common diseases such as push, embrace, delamination and cracks of bridge deck pavement under high temperature and heavy load, greatly improves the fatigue resistance of the overall structure, especially the integral construction of the pavement layer, which is uniform, avoids the problems of interface pollution and complex process caused by multi-layer construction, and further ensures the excellent performance of the pavement structure.

[0012] According to the steel bridge deck concrete pavement structure provided by the present application, the tensile strength of the second-order cured epoxy resin layer is greater than or equal to 5.0MPa, the elongation at break is greater than or equal to 300%, and the bonding strength is greater than or equal to 3.0MPa.

[0013] The steel bridge concrete pavement structure provided by the application, the amount of the second-order solidified epoxy resin layer is 0.5-0.8 kg / m 2 .

[0014] The steel bridge concrete pavement structure provided by the application, in the modifier, the proportions of the graphite nanosheet, SIS, UHMWPE, epoxy resin and naphthenic oil are 1-2 parts, 30-40 parts, 20-30 parts, 15-20 parts and 5-10 parts respectively.

[0015] Preferably, the modifier is composed of 1-2 parts of graphite nanosheet, 30-40 parts of SIS, 20-30 parts of UHMWPE, 15-20 parts of epoxy resin, 1-2 parts of KH550, 1-2 parts of stearic acid and 5-10 parts of naphthenic oil.

[0016] The steel bridge concrete pavement structure provided by the application, the preparation method of the modifier is: first, the graphite nanosheet is added into the naphthenic oil and uniformly dispersed, then it is mixed with SIS, UHMWPE and epoxy resin and extruded and granulated at 180-230 DEG C, wherein the epoxy resin is used as a compatibilizer at the same time.

[0017] In the test, it is found that when the modifier composed of the above-mentioned formula is used, the dispersibility and stability of UHMWPE and graphite nanosheet in the asphalt concrete are very excellent, and the two can significantly improve the application performance of the steel bridge concrete pavement structure under high temperature and low temperature, and the lubricating effect of the graphite nanosheet also increases the compaction degree of the layer structure, increases the strength of the pavement structure, especially the epoxy resin, in addition to the general resin effect, it is also used as a compatibilizer, which is very beneficial to increase the adhesion of asphalt and stone, and helps to form an integral whole of the asphalt concrete layer and the second-order solidified epoxy resin layer.

[0018] The steel bridge concrete pavement structure provided by the application, the mass content of the modifier in the asphalt concrete layer is 0.5-1%, and the compaction degree of the asphalt concrete layer is more than 96%. The modifier in the application contains graphite nanosheet, and the asphalt can be inserted into the interlayer of the graphite nanosheet, which increases the cohesion of the internal structure of the asphalt mixture, enhances the anti-fracture performance of the asphalt mixture, gives the mixture super-high strength and excellent anti-fatigue performance, and the graphite nanosheet has excellent lubricating effect, so that the asphalt mixture has better compaction performance and workability, reduces the aging of the asphalt mixture and prolongs the service life of the pavement.

[0019] Preferably, the asphalt concrete layer is composed of the modifier, asphalt and mineral aggregate; the proportions of the modifier, asphalt and mineral aggregate are 0.5-1 part, 4-5 parts and 94-95.5 parts respectively.

[0020] The steel bridge concrete pavement structure comprises a corrosion-proof layer on a steel bridge deck, a second curing epoxy resin layer on the corrosion-proof layer, a 4-6 cm asphalt concrete layer on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer, and a 4-6 cm high-viscosity and high-elasticity SMA asphalt concrete layer on the bonding layer.

[0021] Preferably, the softening point of the high-viscosity and high-elasticity modified asphalt in the high-viscosity and high-elasticity SMA asphalt concrete layer is greater than or equal to 90 DEG C, the 5 DEG C ductility is greater than or equal to 40 cm, the dynamic viscosity is greater than or equal to 200,000 Pa s, the elastic recovery is greater than or equal to 95%, and the gradation is SMA-10 or SMA-13.

[0022] The high-viscosity and high-elasticity SMA asphalt concrete layer can be composed of 4-5 parts by weight of high-viscosity and high-elasticity modified asphalt and 95-96 parts by weight of mineral aggregate.

[0023] The steel bridge concrete pavement structure provided by the application is characterized in that the bonding layer is formed by second curing epoxy resin or water-based polymer modified emulsified asphalt, and the preferred amount is 0.6-1.2 kg / m 2 of the second curing epoxy resin.

[0024] The application further provides a pavement method for the steel bridge concrete pavement structure as described above, which comprises the following steps:

[0025] forming a corrosion-proof layer;

[0026] forming a second curing epoxy resin layer;

[0027] forming an asphalt concrete layer.

[0028] The application provides a steel bridge concrete pavement structure and a pavement method thereof, which form a specific second curing epoxy resin layer and an asphalt concrete layer modified by a specific modifier on the second curing epoxy resin layer, accelerate the reaction of the epoxy resin when paving the asphalt concrete, make the second curing epoxy resin layer and the asphalt concrete layer closely connected and integrated, and simultaneously play the roles of waterproofing, corrosion-proofing and bonding, and the deformation followability of the pavement structure is significantly improved, the strength and shear resistance of the overall pavement structure are improved, the durability is strengthened, and the pavement structure is particularly suitable for the pavement of a large-span steel bridge.

[0029] In addition, the pavement material of the application is simple to construct and can be completed by using conventional equipment, has no special requirements for construction temperature and time, and can be opened to traffic after the pavement temperature is reduced, without the need for long-term curing and the like, thereby reducing the influence on traffic. DETAILED DESCRIPTION

[0030] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0031] If a specific technology or condition is not specified in the embodiments, the technology or condition described in the literature in the art or according to the product manual is used. If the manufacturer of the reagent or instrument is not specified, it is a conventional product that can be purchased through a regular channel.

[0032] In the present application, the softening point of the high-viscosity and high-elasticity modified asphalt used in the high-viscosity and high-elasticity SMA asphalt concrete layer is 105℃, the 5℃ ductility is 55cm, the dynamic viscosity is 1.29 million Pa·s, and the elastic recovery is 99%.

[0033] Embodiment 1

[0034] A paving method of a steel bridge deck concrete paving structure, the steps of which are as follows:

[0035] (1) sandblasting and rust removal treatment is performed on the steel bridge deck;

[0036] (2) a zinc-rich epoxy paint is sprayed on the sandblasted and rust-removed steel bridge deck as a corrosion protection layer, and is allowed to stand until dry;

[0037] (3) a second-order curing epoxy resin material with a spraying amount of 0.8kg / m 3 is sprayed on the above corrosion protection layer, the material is composed of component A and component B, wherein component A is epoxy resin E44, component B is a polyamine curing agent composition, and the mass ratio of component A to component B is 1:1, and is allowed to stand until dry at room temperature;

[0038] (4) an asphalt concrete layer with a thickness of 4cm is formed on the layer structure obtained in step (3) by laying asphalt concrete with a temperature of 160℃, the asphalt concrete is rolled to a compaction degree of 98%, and the road surface temperature is allowed to drop to below 60℃; wherein the composition of the asphalt concrete is as follows in terms of weight fraction: 1 part of a modifier, 5 parts of a base asphalt, 94 parts of a mineral aggregate, and a gradation of AC-13, in the modifier, the composition is as follows in terms of weight fraction: 2 parts of graphite nanosheets, 40 parts of SIS, 30 parts of UHMWPE, 20 parts of an epoxy resin, 2 parts of KH550, 2 parts of stearic acid, and 10 parts of naphthenic oil, and the particle size of the modifier is 4mm or less.

[0039] (5) a brushing amount of 0.6kg / m 3The second order cured epoxy resin material (same as step (3)) of the present application is used as the adhesive layer, and is cured at room temperature until dry to the touch;

[0040] (6) A 4cm-thick high-viscosity high-elasticity SMA asphalt concrete layer is laid on the adhesive layer, and is rolled to a compaction degree of 98%, and is cooled until the road surface temperature is below 50℃, thereby obtaining the paving structure; wherein the high-viscosity high-elasticity SMA asphalt concrete layer comprises 5 parts of high-viscosity high-elasticity modified asphalt and 95 parts of mineral aggregate, and the gradation is SMA-13.

[0041] Example 2

[0042] A paving method of a steel bridge deck concrete paving structure, comprising the following steps:

[0043] (1) The same as example 1.

[0044] (2) The same as example 1.

[0045] (3) The same as example 1.

[0046] (4) The same as example 1, except that the thickness of the asphalt concrete layer formed is 5cm, thereby obtaining the steel bridge deck concrete paving structure.

[0047] Example 3

[0048] A paving method of a steel bridge deck concrete paving structure, comprising the following steps which are basically the same as example 1, except that step (4) is as follows:

[0049] (4) An asphalt concrete layer with a thickness of 4cm is formed on the waterproof adhesive layer by laying asphalt concrete with a temperature of 160℃, and is rolled to a compaction degree of 96%, and is cooled until the road surface temperature is below 60℃; wherein the asphalt concrete comprises 0.5 parts of a modifier, 5 parts of base asphalt, and 94.5 parts of mineral aggregate, and the gradation is AC-13; the modifier is the same as example 1.

[0050] Comparative Example 1

[0051] A paving method of a steel bridge deck concrete paving structure, comprising the following steps which are basically the same as example 1, except that the epoxy resin in the modifier of example 1 is replaced by SIS-g-MA.

[0052] Comparative Example 2

[0053] A method for paving a steel bridge deck concrete pavement structure, the steps of which are substantially the same as in Example 1, except that the two-stage cured epoxy resin material of step (3) in Example 1 is replaced by a conventional epoxy resin, wherein the A component is epoxy resin E44 and the B component is polyamide 650 curing agent composition, and the mass ratio of the A component to the B component is 50:50.

[0054] Comparative Example 3

[0055] A pavement structure composed of epoxy asphalt concrete, composed of the following from bottom to top:

[0056] Waterproof bonding layer: 0.68 kg / m 2 of epoxy asphalt.

[0057] Lower layer: 4 cm EA-13 epoxy asphalt concrete.

[0058] Bonding layer: 0.45 kg / m 2 of epoxy asphalt.

[0059] Upper layer: 4 cm SMA-13 modified asphalt concrete.

[0060] Comparative Example 4

[0061] A pavement structure composed of cast asphalt concrete, composed of the following from bottom to top:

[0062] Corrosion protection layer: acrylic corrosion protection paint.

[0063] Waterproof bonding layer; 2.5 kg / m 2 of methacrylic resin waterproof layer and 0.2 kg / m 2 of acrylic resin bonding agent.

[0064] Lower layer: 4 cm GA-10 cast asphalt concrete.

[0065] Bonding layer; 0.5 kg / m 2 of modified emulsified asphalt.

[0066] Upper layer: 4 cm SMA-13 modified asphalt concrete.

[0067] The pavement structures obtained in the above Examples 1-3 and Comparative Examples 1-4 were formed into test specimens, cured and tested for performance in accordance with the specifications "Test Code for Asphalt and Asphalt Mixture for Highway Engineering (JTG E20-2011)", "Technical Code for Design and Construction of Steel Bridge Deck Pavement" (JTG / T3364-02-2019), and the data are shown in Tables 1-2 below:

[0068] Table 1

[0069] Example 1 Example 2 Example 3 60°C dynamic stability (cycles / mm, 0.7 MPa) 21795 26840 20332 70°C dynamic stability (cycles / mm, 1.0 MPa) 13155 16032 12187 Fatigue life (100,000 cycles, 1200 με) 104 127 95 Tensile strength (23°C, MPa) 6.7 7.1 6.8 Tensile strength (60°C, MPa) 4.8 5.4 5.1 Cost per square meter (Yuan / m 2 ) 280 250 260

[0070] Table 2

[0071]

[0072] From the above data, it can be seen that the dynamic stability of the pavement structure of the application at 60℃ (0.7MPa) is 20000-27000 times / mm, the dynamic stability at 70℃ (1.0MPa) is 12000-17000 times / mm, the fatigue life (1200με) is 0.9-1.3 million times, the tensile strength (23℃) is 6-8MPa, the tensile strength (60℃) is 4-6MPa, and the cost per square meter is 250-280 yuan / m 2 The overall high-temperature performance, fatigue life and tensile strength of the pavement structure thereof are far higher than those of epoxy asphalt concrete and poured asphalt concrete technology, the cost per square meter is far lower than those of the two technologies, and the construction is simple, which can quickly develop traffic and has excellent performance-price ratio.

[0073] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of the application, but not to limit them; although the application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A concrete pavement structure for steel bridge decks, characterized by The paving structure is composed of an anticorrosive layer on a steel bridge deck, a second-cured epoxy resin layer on the anticorrosive layer, and a 4-6 cm asphalt concrete layer on the second-cured epoxy resin layer. The asphalt concrete layer contains a modifier with graphite nanosheets, SIS, UHMWPE, epoxy resin and naphthenic oil as main components. In the modifier, the proportions of graphite nanosheets, SIS, UHMWPE, epoxy resin and naphthenic oil are 1-2 parts, 30-40 parts, 20-30 parts, 15-20 parts and 5-10 parts, respectively, by weight. The paving structure is composed of an anticorrosive layer on a steel bridge deck, a second-cured epoxy resin layer on the anticorrosive layer, and a 4-6 cm asphalt concrete layer on the second-cured epoxy resin layer.

2. The steel bridge deck concrete pavement structure according to claim 1, characterized in that, The second-cured epoxy resin layer has a tensile strength of ≥5.0 MPa, an elongation at break of ≥300%, and a bonding strength of ≥3.0 MPa.

3. The steel bridge deck concrete pavement structure according to claim 1 or 2, characterized in that The modifier is composed of 1-2 parts of graphite nanosheets, 30-40 parts of SIS, 20-30 parts of UHMWPE, 15-20 parts of epoxy resin, 1-2 parts of KH550, 1-2 parts of stearic acid and 5-10 parts of naphthenic oil.

4. The steel bridge deck concrete pavement structure according to claim 1 or 2, characterized in that, The amount of the second curing epoxy resin layer is 0.5-0.8 kg / m 2 .

5. The steel bridge deck concrete pavement structure according to claim 3, characterized in that, The amount of the second curing epoxy resin layer is 0.5-0.8 kg / m 2 .

6. The steel bridge deck concrete pavement structure according to any one of claims 1, 2, 5, characterized in that, The modifier is composed of 1-2 parts of graphite nanosheets, 30-40 parts of SIS, 20-30 parts of UHMWPE, 15-20 parts of epoxy resin, 1-2 parts of KH550, 1-2 parts of stearic acid and 5-10 parts of naphthenic oil.

7. The steel bridge deck concrete pavement structure according to claim 3, characterized by The modifier is composed of 1-2 parts of graphite nanosheets, 30-40 parts of SIS, 20-30 parts of UHMWPE, 15-20 parts of epoxy resin, 1-2 parts of KH550, 1-2 parts of stearic acid and 5-10 parts of naphthenic oil.

8. The steel bridge deck concrete pavement structure according to claim 4, characterized by The preparation method of the modifier is: first, disperse and mix the graphite nanosheets in naphthenic oil, then mix them with SIS, UHMWPE and epoxy resin, and finally extrude and granulate at 180-230℃.

9. The steel bridge deck concrete pavement structure according to any one of claims 1, 2, 5, 7, 8, characterized in that, The preparation method of the modifier is: first, disperse and mix the graphite nanosheets in naphthenic oil, then mix them with SIS, UHMWPE and epoxy resin, and finally extrude and granulate at 180-230℃.

10. The steel bridge deck concrete pavement structure according to claim 3, characterized by The preparation method of the modifier is: first, disperse and mix the graphite nanosheets in naphthenic oil, then mix them with SIS, UHMWPE and epoxy resin, and finally extrude and granulate at 180-230℃.

11. The steel bridge deck concrete pavement structure according to claim 4, characterized in that, The preparation method of the modifier is: first, disperse and mix the graphite nanosheets in naphthenic oil, then mix them with SIS, UHMWPE and epoxy resin, and finally extrude and granulate at 180-230℃.

12. The steel bridge deck concrete pavement structure according to claim 6, characterized in that, The mass content of the modifier in the asphalt concrete layer is 0.5-1%, and the compactness of the asphalt concrete layer is above 96%.

13. The steel bridge deck concrete pavement structure according to any one of claims 1, 2, 5, 7, 8, 10-12, characterized in that, The mass content of the modifier in the asphalt concrete layer is 0.5-1%, and the compactness of the asphalt concrete layer is above 96%.

14. The steel bridge deck concrete pavement structure according to claim 3, characterized in that, The mass content of the modifier in the asphalt concrete layer is 0.5-1%, and the compactness of the asphalt concrete layer is above 96%.

15. The steel bridge deck concrete pavement structure according to claim 4, characterized in that, The mass content of the modifier in the asphalt concrete layer is 0.5-1%, and the compactness of the asphalt concrete layer is above 96%.

16. The steel bridge deck concrete pavement structure according to claim 6, characterized in that, ​ 17. The steel bridge deck concrete pavement structure of claim 9, wherein The mass content of the modifier in the asphalt concrete layer is 0.5-1%, and the compaction degree of the asphalt concrete layer is above 96%.

18. The steel bridge deck concrete pavement structure of claim 13, wherein, The asphalt concrete layer is composed of the modifier, asphalt and mineral aggregate; the proportions of the modifier, asphalt and mineral aggregate are 0.5-1 parts, 4-5 parts and 94-95.5 parts respectively according to weight.

19. The steel bridge deck concrete pavement structure according to any one of claims 14 to 17, characterized in that The asphalt concrete layer is composed of the modifier, asphalt and mineral aggregate; the proportions of the modifier, asphalt and mineral aggregate are 0.5-1 parts, 4-5 parts and 94-95.5 parts respectively according to weight.

20. The steel bridge deck concrete pavement structure according to any one of claims 1, 2, 5, 7, 8, 10-12, 14-17, characterized in that The pavement structure is composed of an anticorrosive layer on the steel bridge deck, a second curing epoxy resin layer on the anticorrosive layer, an asphalt concrete layer with a thickness of 4-6 cm on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer and a high-stickiness high-elasticity SMA asphalt concrete layer with a thickness of 4-6 cm on the bonding layer.

21. The steel bridge deck concrete pavement structure according to claim 3, characterized in that, The pavement structure is composed of an anticorrosive layer on the steel bridge deck, a second curing epoxy resin layer on the anticorrosive layer, an asphalt concrete layer with a thickness of 4-6 cm on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer and a high-stickiness high-elasticity SMA asphalt concrete layer with a thickness of 4-6 cm on the bonding layer.

22. The steel bridge deck concrete pavement structure according to claim 4, wherein The pavement structure is composed of an anticorrosive layer on the steel bridge deck, a second curing epoxy resin layer on the anticorrosive layer, an asphalt concrete layer with a thickness of 4-6 cm on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer and a high-stickiness high-elasticity SMA asphalt concrete layer with a thickness of 4-6 cm on the bonding layer.

23. The steel bridge deck concrete pavement structure according to claim 6, characterized in that, The pavement structure is composed of an anticorrosive layer on the steel bridge deck, a second curing epoxy resin layer on the anticorrosive layer, an asphalt concrete layer with a thickness of 4-6 cm on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer and a high-stickiness high-elasticity SMA asphalt concrete layer with a thickness of 4-6 cm on the bonding layer.

24. The steel bridge deck concrete pavement structure of claim 9, wherein, The pavement structure is composed of an anticorrosive layer on the steel bridge deck, a second curing epoxy resin layer on the anticorrosive layer, an asphalt concrete layer with a thickness of 4-6 cm on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer and a high-stickiness high-elasticity SMA asphalt concrete layer with a thickness of 4-6 cm on the bonding layer.

25. The steel bridge deck concrete pavement structure of claim 13, wherein, The pavement structure is composed of an anticorrosive layer on the steel bridge deck, a second curing epoxy resin layer on the anticorrosive layer, an asphalt concrete layer with a thickness of 4-6 cm on the second curing epoxy resin layer, a bonding layer on the asphalt concrete layer and a high-stickiness high-elasticity SMA asphalt concrete layer with a thickness of 4-6 cm on the bonding layer.

26. The steel bridge deck concrete pavement structure of claim 20, wherein The high-stickiness high-elasticity SMA asphalt concrete layer is composed of high-stickiness high-elasticity modified asphalt with a softening point of not less than 90 DEG C, a 5 DEG C ductility of not less than 40 cm, a dynamic viscosity of not less than 200000 Pa s, an elastic recovery of not less than 95% and a gradation of SMA-10 or SMA-13.

27. The steel bridge deck concrete pavement structure according to any of claims 21-25, characterized in that The high-stickiness high-elasticity SMA asphalt concrete layer is composed of high-stickiness high-elasticity modified asphalt with a softening point of not less than 90 DEG C, a 5 DEG C ductility of not less than 40 cm, a dynamic viscosity of not less than 200000 Pa s, an elastic recovery of not less than 95% and a gradation of SMA-10 or SMA-13.

28. The steel bridge deck concrete pavement structure of claim 20, wherein, The bonding layer is formed by the second curing epoxy resin or water-based high-molecular modified emulsified asphalt.

29. The steel bridge deck concrete pavement structure according to any of claims 21-26, characterized in that The adhesive layer is formed by a second-order cured epoxy resin or water-based polymer modified emulsified asphalt.

30. The steel bridge deck concrete pavement structure of claim 27, wherein, The adhesive layer is formed by a second-order cured epoxy resin or water-based polymer modified emulsified asphalt.

31. The steel bridge deck concrete pavement structure according to claim 28 or 30, characterized in that The adhesive layer is formed from a second order cured epoxy resin in an amount of 0.6 to 1.2 kg / m 2 2.

32. The steel bridge deck concrete pavement structure of claim 29, wherein, The adhesive layer is formed from a second order cured epoxy resin in an amount of 0.6 to 1.2 kg / m 2 2.

33. The method of placing a steel bridge deck concrete pavement structure according to any one of claims 1 to 32, characterized in that, Comprise: Forming a corrosion protection layer; Forming a second-order cured epoxy resin layer; Forming an asphalt concrete layer.

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