CN212656065U - Thin-layer asphalt pavement structure - Google Patents
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- CN212656065U CN212656065U CN202021030081.7U CN202021030081U CN212656065U CN 212656065 U CN212656065 U CN 212656065U CN 202021030081 U CN202021030081 U CN 202021030081U CN 212656065 U CN212656065 U CN 212656065U
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Abstract
The utility model discloses a thin-layer asphalt pavement structure, which comprises a base surface body, a cured epoxy resin layer, a pre-wrapped asphalt gravel layer and a thin-layer asphalt pavement layer; a solidified epoxy resin layer is arranged on the base surface body; and the pre-coated asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer. The utility model discloses a thin layer asphalt structure of mating formation can improve bond strength between layer and shear strength between layer.
Description
Technical Field
The utility model relates to a thin layer pitch structure of mating formation.
Background
The thin-layer asphalt overlay is a hot-mix asphalt concrete overlay with a compacted thickness of 2-3 cm, compared with the traditional asphalt overlay. The thin asphalt overlay is one of the important measures for the preventive maintenance of the asphalt pavement and is also an important pavement structure for additionally paving an asphalt layer on the concrete pavement. The hot-mix asphalt concrete cover surface is thin, the cost is saved in the production and construction processes of the asphalt mixture, and the energy consumption is reduced. Meanwhile, due to the characteristics of thinness and light dead weight, the method has small change on the road surface elevation and the stress state of the bridge, and is particularly suitable for the maintenance layer of the bridge and the tunnel which has the limitation on the secondary constant load of a pavement system or has the requirement on the clearance height.
Due to the thin thickness of thin asphalt mat, the application of thin asphalt mat generally has the following two technical difficulties: 1. is not easy to compact. The thin asphalt overlay has a small thickness and a fast heat dissipation, so that it is difficult to achieve a high degree of compactness. The difficulty is mainly solved by adopting a special high-frequency low-amplitude vibratory roller for compaction and an asphalt mixture warm mixing technology. 2. The thin asphalt overlay is not easy to be firmly bonded with the base surface. In order to increase the adhesion between the thin asphalt overlay and the base surface, it is often used to spray adhesive oil or to provide a connection structure layer. The adhesive layer oil or the connecting structure layer comprises emulsified asphalt, water-based epoxy, a chip seal, a resin seal and the like.
CN204343131U discloses a durable cement pavement thin-layer overlay pavement structure. A fiber seal layer is laid on the road surface from bottom to top, then a high-elastic modified asphalt concrete layer is laid, and then an ultra-thin wearing layer is laid. The paving structure in the patent document increases the bonding strength with the original road surface compared with the conventional cement pavement asphalt concrete paving structure. CN204690593U discloses a cement concrete bridge floor asphalt thin layer pavement structure, including cement concrete bridge face board and SMA-13 high-viscosity asphalt concrete layer, is provided with waterborne epoxy asphalt waterproof bonding layer between cement concrete bridge face board and the SMA-13 high-viscosity asphalt concrete layer. CN107513940A discloses a cement concrete bridge face environment-friendly thin-layer asphalt pavement structure, from bottom to top respectively including cement decking, waterproof tie coat and asphalt pavement layer after handling.
However, in view of the application of the current thin asphalt overlay (i.e. thin asphalt pavement), the thin asphalt pavement is subject to shear failure due to interlayer adhesion failure, i.e. the adhesion of the thin asphalt overlay to the base surface still needs to be further improved.
Accordingly, it is desirable to provide a thin-layer asphalt pavement structure that can improve the interlaminar bond strength and the interlaminar shear strength.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thin layer pitch structure of mating formation, it can improve the thin layer pitch layer of mating formation and the base face body between the layer bonding strength. Further, the utility model discloses can also improve the interlaminar shear strength between thin layer pitch layer of mating formation and the base face body. Furthermore, the utility model discloses application scope is wide, and is applicable in cement concrete base face, asphalt concrete base face and steel sheet base face.
The utility model adopts the following technical scheme to realize the purpose.
The utility model provides a thin-layer asphalt pavement structure, which comprises a base surface body, a cured epoxy resin layer, a pre-coated asphalt gravel layer and a thin-layer asphalt pavement layer; a solidified epoxy resin layer is arranged on the base surface body; and the pre-coated asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer.
According to the utility model discloses a thin layer asphalt structure of mating formation, preferably, the thickness on solidification epoxy layer is 0.8 ~ 6 mm.
According to the thin-layer asphalt pavement structure of the utility model, preferably, a part of the pre-coated asphalt gravel layer is embedded into the cured epoxy resin layer; the gravel embedded in the cured epoxy resin layer of the pre-coated asphalt gravel layer is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer.
According to the utility model discloses a thin layer asphalt pavement structure, preferably, at least some in the embedding pitch rubble both with thin layer asphalt pavement layer contacts, again with base face body contact.
According to the utility model discloses a thin layer asphalt pavement structure, preferably, the pre-coated asphalt gravel layer is a layer formed by pre-coated asphalt basalt gravel; the particle size of the basalt macadam pre-wrapped with the asphalt is 5-10 mm.
According to the utility model discloses a thin layer asphalt pavement structure, preferably, the thickness of wrapping in advance covering the pitch rubble layer with the basalt rubble spread meter of wrapping in advance covering pitch is 3 ~ 8kg/m2。
According to the utility model discloses a thin layer asphalt pavement structure, preferably, the thin layer asphalt pavement layer is selected from one of following: (1) a layer formed by an asphalt mastic macadam mixture, (2) a layer formed by easily-compacted asphalt concrete, or (3) a layer formed by an open-graded drainage asphalt wear layer.
According to the utility model discloses a thin layer asphalt pavement structure, preferably, the thickness on thin layer asphalt pavement layer is 15 ~ 29 mm.
According to the utility model discloses a thin layer asphalt pavement structure, preferably, the thickness on thin layer asphalt pavement layer is 15 ~ 25 mm.
According to the utility model discloses a thin layer asphalt pavement structure, preferably, base face body includes cement concrete base face, asphalt concrete base face or steel sheet base face.
The utility model discloses a set gradually the solidification epoxy layer on the base face body, pre-wrap up and cover pitch metalling and thin-layer pitch layer of mating formation for base face body and pre-wrap up and cover pitch metalling, thin-layer pitch layer of mating formation organic whole, thereby improve base face body and thin-layer pitch layer between the layer bond strength and layer shear strength of mating formation, thereby can reduce the production of lapse shear failure.
Drawings
Fig. 1 is a schematic structural diagram of the thin-layer asphalt pavement structure of the present invention.
Wherein, 1-a basal plane body; 2-curing the epoxy resin layer; 3-pre-wrapping an asphalt gravel layer; 4-thin asphalt pavement layer.
Detailed Description
The present invention will be further described with reference to the following embodiments, but the scope of the present invention is not limited thereto.
The utility model discloses a thin-layer asphalt pavement structure includes base face body, solidification epoxy layer, wraps up in advance and covers pitch metalling and thin-layer asphalt layer of mating formation. The base surface body is sequentially provided with a cured epoxy resin layer, a pre-wrapped asphalt gravel layer and a thin asphalt pavement layer. A pre-wrapped asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer. The utility model discloses a solidification epoxy layer covers pitch metalling with the parcel in advance and lays thin-layer pitch layer of mating formation and base face body bonding to form the organic whole, improved thin-layer pitch layer of mating formation and the layer between the base face body bonding strength and layer shear strength.
The utility model discloses in, the base face body includes cement concrete base face, bituminous concrete base face or steel sheet base face. Before paving, the base surface needs to be treated. For asphalt concrete base surfaces, it is necessary to remove surface dirt, mud cake and loose aggregate. For cement concrete base surfaces, sand blasting treatment and cleaning of the base surface are required until no laitance or dust exists. For the base surface of the steel plate, sand blasting is needed to remove rust until the cleanliness is not lower than Sa2.5 grade and the roughness is 40-100 mu m. Thus, the base surface body and the thin asphalt pavement layer are firmly bonded together, and the interlayer bonding strength is improved.
The utility model discloses a thickness of solidification epoxy layer is 0.8 ~ 6mm, and preferably 1 ~ 5mm, more preferably 1 ~ 4 mm. The epoxy resin curing layer is a mixture of epoxy resin and curing agent obtained by uniformly mixing the epoxy resin and the curing agent, and the mixture is brushed or rolled on the base surface body to form a mixture layer of the epoxy resin and the curing agent. The epoxy resin in the mixture layer does not react with the curing agent at normal temperature, and is cured and molded under the action of high temperature generated when the thin asphalt pavement layer is laid, so that a cured epoxy resin layer is formed by the mixture layer of the epoxy resin and the curing agent. The thickness of the cured epoxy resin layer of the present invention refers to the thickness of the coating film, i.e., the thickness of the mixture layer of the epoxy resin and the curing agent which is coated or rolled. According to one embodiment of the present invention, the epoxy resin is model E51 or E44. The kind of the curing agent used in the present invention is not particularly limited, and those commonly used in the art may be used. The cured epoxy resin layer is arranged on the base surface body, so that the interlayer bonding strength between the thin-layer asphalt pavement layer and the base surface body is improved.
The utility model discloses a wrap up in advance and cover some embedding of pitch metalling cured epoxy layer. The gravel embedded in the cured epoxy resin layer of the pre-coated asphalt gravel layer is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer. At least a part embedded in the bituminous macadamThe asphalt pavement layer is in contact with the thin asphalt pavement layer and the base surface body. According to a preferred embodiment of the present invention, all of the embedded asphalt macadam is in contact with both the thin asphalt pavement layer and the base surface body. Thus being beneficial to improving the interlayer bonding strength and the interlayer shearing strength between the thin asphalt pavement layer and the base surface body. The pre-coated asphalt-coated gravel layer is a layer formed by pre-coated asphalt-coated basalt gravel. The basalt macadam pre-wrapped with asphalt means that a layer of ultrathin asphalt film is pre-infiltrated and bonded on the surface of required basalt macadam particles. The particle size of the basalt macadam pre-wrapped with the asphalt is 5-10 mm. The thickness of the pre-coated asphalt gravel layer is 3-8 kg/m measured by the spreading amount of the basalt gravel pre-coated with asphalt2Preferably 5 to 8kg/m2More preferably 5 to 7kg/m2. The utility model discloses in, need to wrap in advance during the construction and cover the basalt rubble of pitch and adopt artifical or machine spread on the mixture layer of epoxy and curing agent, at this moment, still do not form the solidification epoxy layer, consequently, the basalt rubble of wrapping in advance and covering the pitch has partly imbed in the mixture layer of epoxy and curing agent. When the thin asphalt pavement layer is laid, the mixture layer of the epoxy resin and the curing agent is cured and formed under the action of high temperature, and then a cured epoxy resin layer is formed. The formed cured epoxy resin layer is bonded with the pre-coated asphalt gravel layer more firmly.
And paving a thin asphalt pavement layer on the upper side of the pre-coated asphalt gravel layer according to the requirements of construction specifications. In certain embodiments, the thin asphalt pavement is a layer formed from an asphalt mastic macadam mix. The mixture of mastic asphalt and macadam is abbreviated as SMA. In other embodiments, the thin asphalt pavement is a layer of multi-macadam asphalt concrete. The easy-to-compact asphalt mixture is abbreviated as ECA. In still other embodiments, the thin asphalt pavement is a layer formed from an open-graded drainage asphalt mix. The open-graded drainage asphalt mixture is abbreviated as OGFC. According to a specific embodiment of the present invention, the thin asphalt pavement layer is formed of SMA-5 or SMA-10. According to another embodiment of the present invention, the thin asphalt layer is formed by ECA-10. According to a further embodiment of the present invention, the thin asphalt pavement is formed by OGFC-10. The thickness of the thin asphalt pavement layer is 15-29 mm, preferably 15-27 mm, and more preferably 15-25 mm. When the thin asphalt pavement layer is paved, the mixture layer of the epoxy resin and the curing agent is cured and molded under the high-temperature action of the thin asphalt pavement layer, and a cured epoxy resin layer is formed; thereby forming the thin-layer asphalt pavement structure of the utility model. Therefore, the organic whole body can be formed between the base surface body and the cured epoxy resin layer as well as between the pre-wrapped asphalt gravel layer and the thin asphalt pavement layer, so that the interlayer bonding strength and the interlayer shearing strength between the thin asphalt pavement layer and the base surface body can be improved.
According to one embodiment of the utility model, the thin-layer asphalt pavement structure of the utility model comprises a base surface body, a cured epoxy resin layer, a pre-coated asphalt gravel layer and a thin-layer asphalt pavement layer; a solidified epoxy resin layer is arranged on the base surface body; and the pre-coated asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer.
The thickness of the cured epoxy resin layer is 1-5 mm. Embedding a part of the pre-coated asphalt gravel layer into the cured epoxy resin layer; the gravel embedded in the cured epoxy resin layer is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer. The pre-coated asphalt gravel layer is a layer formed by pre-coated asphalt basalt gravel; the particle size of the basalt macadam pre-wrapped with the asphalt is 5-10 mm. The thickness of the pre-coated asphalt gravel layer is 5-8 kg/m based on the spreading amount of the basalt gravel coated with asphalt2. The thin-layer asphalt pavement layer is formed by asphalt horseshoe resin macadam mixture. The thickness of the thin asphalt pavement layer is 15-29 mm. By adopting the thickness and the dosage of each layer and the arrangement mode of each layer, the overall performance of the thin-layer asphalt pavement structure can be improved, and the interlayer bonding strength and the shearing strength are effectively improved.
According to another embodiment of the present invention, the thin asphalt pavement structure of the present invention comprises a base surface body, a cured epoxy resin layer, a pre-coated asphalt gravel layer and a thin asphalt pavement layer; a solidified epoxy resin layer is arranged on the base surface body; and the pre-coated asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer.
The thickness of the cured epoxy resin layer can be 1-4 mm. Embedding a part of the pre-coated asphalt gravel layer into the cured epoxy resin layer; the gravel embedded in the cured epoxy resin layer is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer. The pre-coated asphalt gravel layer is a layer formed by pre-coated asphalt basalt gravel; the particle size of the basalt macadam pre-wrapped with the asphalt is 5-10 mm. The thickness of the pre-coated asphalt gravel layer is 5-8 kg/m based on the spreading amount of the basalt gravel coated with asphalt2. The thin asphalt pavement layer is a layer formed by multi-macadam asphalt concrete. The thickness of the thin asphalt pavement layer is 15-25 mm. By adopting the thickness and the dosage of each layer and the arrangement mode of each layer, the overall performance of the thin-layer asphalt pavement structure can be improved, and the interlayer bonding strength and the shearing strength are effectively improved.
According to another embodiment of the present invention, the thin asphalt pavement structure of the present invention comprises a base surface bulk cured epoxy resin layer, a pre-coated asphalt gravel layer and a thin asphalt pavement layer; a solidified epoxy resin layer is arranged on the base surface body; and the pre-coated asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer.
The thickness of the cured epoxy resin layer is 1-4 mm. Embedding a part of the pre-coated asphalt gravel layer into the cured epoxy resin layer; the gravel embedded in the cured epoxy resin layer is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer. The pre-coated asphalt gravel layer is a layer formed by pre-coated asphalt basalt gravel; the particle size of the basalt macadam pre-wrapped with the asphalt is 5-10 mm. The thickness of the pre-coated asphalt gravel layer is 5-7 kg/m based on the spreading amount of the basalt gravel coated with asphalt2. The thin-layer asphalt pavement layer is a layer formed by open-graded epoxy asphalt mixture. The thickness of the thin asphalt pavement layer is 15-27 mm. By adopting the thickness and the dosage of each layer and the arrangement mode of each layer, the overall performance of the thin-layer asphalt pavement structure can be improved, and the interlayer bonding strength and the shearing strength are effectively improved.
The utility model discloses a forming method of thin layer asphalt pavement structure includes following step:
1) and (4) processing the basal plane body. For the asphalt concrete base surface, surface dirt, mud blocks and loose aggregates are removed. For cement base surfaces, the base surfaces are sand blasted and cleaned to be free of laitance and dust. And for the base surface of the steel plate, sand blasting is carried out to remove the rust until the roughness is 80 mu m, and the cleanliness is Sa2.5 grade.
2) And uniformly mixing the epoxy resin and the curing agent, and brushing or rolling the mixture on the basal surface body to form a mixture layer of the epoxy resin and the curing agent. The thickness of the mixture layer of the epoxy resin and the curing agent is 0.8-6 mm.
3) And spreading the basalt macadam pre-coated with the asphalt on a mixture layer of epoxy resin and a curing agent to form a pre-coated asphalt macadam layer.
4) And paving a thin asphalt pavement layer on the upper side of the pre-wrapped asphalt gravel layer, wherein the thickness of the thin asphalt pavement layer is 15-29 mm. Curing and molding the mixture layer of the epoxy resin and the curing agent by the high temperature of the thin asphalt pavement layer to form a cured epoxy resin layer; thereby forming the thin-layer asphalt pavement structure of the utility model. Naturally cooling to below 60 ℃, and opening the traffic for use.
Example 1
Fig. 1 is a schematic structural diagram of the thin-layer asphalt pavement structure of the present invention. The thin-layer asphalt pavement structure of this embodiment includes base surface body 1, solidification epoxy layer 2, pre-coated asphalt gravel layer 3 and thin-layer asphalt pavement layer 4. The base surface body 1 is a cement concrete base surface. A cured epoxy layer 2 is provided on the base body 1. The thickness of the cured epoxy layer 2 was 4 mm. A pre-coated asphalt gravel layer 3 is arranged between the cured epoxy resin layer 2 and the thin asphalt pavement layer 4. A part of the pre-coated asphalt gravel layer 3 is embedded in the cured epoxy resin layer 2. Pre-wrapped asphalt-coated crushed stone layer3 the macadam embedded in the cured epoxy resin layer 2 is called embedded asphalt macadam, and the embedded asphalt macadam is uniformly distributed in the cured epoxy resin layer 2. At least a part of the embedded asphalt macadam is in contact with both the thin asphalt pavement layer 4 and the base surface body 1. The pre-coated asphalt-coated gravel layer 3 is a layer formed by pre-coated asphalt-coated basalt crushed stones. The thickness of the pre-coated asphalt gravel layer is 8kg/m based on the spreading amount of the basalt gravel coated with asphalt2. The thin asphalt pavement layer is formed by OGFC-10. The thickness of the thin asphalt pavement layer 4 is 25 mm.
Example 2
Fig. 1 is a schematic structural diagram of the thin-layer asphalt pavement structure of the present invention. The thin-layer asphalt pavement structure of this embodiment includes base surface body 1, solidification epoxy layer 2, pre-coated asphalt gravel layer 3 and thin-layer asphalt pavement layer 4. The base body 1 is an asphalt concrete base. A cured epoxy layer 2 is provided on the base body 1. The thickness of the cured epoxy layer 2 was 2.5 mm. A pre-coated asphalt gravel layer 3 is arranged between the cured epoxy resin layer 2 and the thin asphalt pavement layer 4. A part of the pre-coated asphalt gravel layer 3 is embedded in the cured epoxy resin layer 2. The gravel embedded in the cured epoxy resin layer 2 of the pre-coated asphalt gravel layer 3 is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer 2. At least a part of the embedded asphalt macadam is in contact with both the thin asphalt pavement layer 4 and the base surface body 1. The pre-coated asphalt-coated gravel layer 3 is a layer formed by pre-coated asphalt-coated basalt crushed stones. The thickness of the pre-coated asphalt gravel layer is 6kg/m based on the spreading amount of the basalt gravel coated with asphalt2. The thin asphalt paving layer is a layer formed by SMA-5. The thickness of the thin asphalt pavement layer 4 is 15 mm.
Example 3
Fig. 1 is a schematic structural diagram of the thin-layer asphalt pavement structure of the present invention. The thin-layer asphalt pavement structure of this embodiment includes base surface body 1, solidification epoxy layer 2, pre-coated asphalt gravel layer 3 and thin-layer asphalt pavement layer 4. The base body 1 is a steel plate base. The base surface body 1 is provided with a curingAnd an epoxy resin layer 2. The thickness of the cured epoxy layer 2 was 1.5 mm. A pre-coated asphalt gravel layer 3 is arranged between the cured epoxy resin layer 2 and the thin asphalt pavement layer 4. A part of the pre-coated asphalt gravel layer 3 is embedded in the cured epoxy resin layer 2. The gravel embedded in the cured epoxy resin layer 2 of the pre-coated asphalt gravel layer 3 is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer 2. At least a part of the embedded asphalt macadam is in contact with both the thin asphalt pavement layer 4 and the base surface body 1. The pre-coated asphalt-coated gravel layer 3 is a layer formed by pre-coated asphalt-coated basalt crushed stones. The thickness of the pre-coated asphalt gravel layer is 5kg/m based on the spreading amount of the basalt gravel coated with asphalt2. The thin asphalt pavement layer is a layer formed by SMA-10. The thickness of the thin asphalt pavement layer 4 is 20 mm.
Comparative example 1
The difference from the embodiment 1 is that only the modified asphalt emulsion bonding layer is arranged between the base surface body and the thin asphalt pavement layer; the modified asphalt emulsified bonding layer is an SBR modified emulsified asphalt bonding layer.
Examples of the experiments
The thin-layer asphalt pavement structures of examples 1 to 3 and the thin-layer asphalt pavement structure of comparative example 1 were subjected to interlayer adhesion strength and interlayer shear strength tests, and the results are shown in table 1.
The test method of the interlayer bonding strength and the interlayer shear strength refers to test methods in appendix B and appendix C of pavement design and construction technical specification of highway steel bridge decks.
TABLE 1
According to the table, the utility model discloses a thin layer asphalt pavement structure can obviously improve thin layer asphalt pavement layer and the base face between the layer bond strength and the interlaminar shear strength, especially interlaminar shear strength obtains obviously improving to can reduce the production of shearing destruction, prolong the life-span of thin layer asphalt pavement structure, increase the durability.
The present invention is not limited to the above embodiments, and any variations, modifications, and substitutions that may occur to those skilled in the art may be made without departing from the spirit of the present invention.
Claims (10)
1. A thin-layer asphalt pavement structure is characterized by comprising a base surface body, a cured epoxy resin layer, a pre-coated asphalt gravel layer and a thin-layer asphalt pavement layer; a solidified epoxy resin layer is arranged on the base surface body; and the pre-coated asphalt gravel layer is arranged between the cured epoxy resin layer and the thin asphalt paving layer.
2. The thin asphalt pavement structure as claimed in claim 1, wherein the thickness of the cured epoxy resin layer is 0.8-6 mm.
3. The thin asphalt pavement structure as claimed in claim 1, wherein a portion of the pre-coated asphalt mastic layer is embedded in the cured epoxy resin layer; the gravel embedded in the cured epoxy resin layer of the pre-coated asphalt gravel layer is called embedded asphalt gravel, and the embedded asphalt gravel is uniformly distributed in the cured epoxy resin layer.
4. The thin asphalt pavement structure according to claim 3, wherein at least a portion of the embedded asphalt macadam is in contact with both the thin asphalt pavement layer and the base body.
5. The thin asphalt pavement structure as claimed in claim 4, wherein the pre-coated asphalt macadam layer is a layer formed by pre-coated asphalt basalt macadam; the particle size of the basalt macadam pre-wrapped with the asphalt is 5-10 mm.
6. The thin asphalt pavement structure as claimed in claim 5, wherein the thin asphalt pavement structure is formed by a method comprising the steps ofThe thickness of the pre-coated asphalt gravel layer is 3-8 kg/m based on the spreading amount of the pre-coated asphalt basalt gravel2。
7. The thin asphalt pavement structure according to claim 1, wherein the thin asphalt pavement layer is selected from one of the following: (1) a layer formed by an asphalt mastic macadam mixture, (2) a layer formed by easily-compacted asphalt concrete, or (3) a layer formed by an open-graded drainage asphalt wear layer.
8. The thin asphalt pavement structure according to claim 1, wherein the thickness of the thin asphalt pavement layer is 15-29 mm.
9. The thin asphalt pavement structure according to claim 8, wherein the thickness of the thin asphalt pavement layer is 15-25 mm.
10. The thin-layer asphalt pavement structure as claimed in any one of claims 1 to 9, wherein the base body comprises a cement concrete base, an asphalt concrete base or a steel plate base.
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