CN117211163A - Steel bridge deck pavement structure of non-motor vehicle lane and preparation method thereof - Google Patents
Steel bridge deck pavement structure of non-motor vehicle lane and preparation method thereof Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 138
- 239000010959 steel Substances 0.000 title claims abstract description 138
- 238000002360 preparation method Methods 0.000 title abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 188
- 229920005989 resin Polymers 0.000 claims abstract description 171
- 239000011347 resin Substances 0.000 claims abstract description 171
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000010410 layer Substances 0.000 claims abstract description 81
- 239000002994 raw material Substances 0.000 claims abstract description 47
- 235000019445 benzyl alcohol Nutrition 0.000 claims abstract description 36
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 claims abstract description 34
- 239000010426 asphalt Substances 0.000 claims abstract description 29
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 26
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 26
- 239000003822 epoxy resin Substances 0.000 claims abstract description 24
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 24
- 239000011384 asphalt concrete Substances 0.000 claims abstract description 17
- 239000004952 Polyamide Substances 0.000 claims abstract description 14
- 229920002647 polyamide Polymers 0.000 claims abstract description 14
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims abstract description 10
- 239000002344 surface layer Substances 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 112
- 238000003756 stirring Methods 0.000 claims description 38
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 26
- 238000002156 mixing Methods 0.000 claims description 26
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 24
- 238000003892 spreading Methods 0.000 claims description 21
- 239000000835 fiber Substances 0.000 claims description 19
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 19
- 239000004575 stone Substances 0.000 claims description 19
- 238000005488 sandblasting Methods 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 238000005096 rolling process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 claims description 5
- 230000003749 cleanliness Effects 0.000 claims description 5
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- 230000000149 penetrating effect Effects 0.000 claims description 3
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- 230000001070 adhesive effect Effects 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 7
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Abstract
The application discloses a steel bridge deck pavement structure of a non-motor vehicle lane and a preparation method thereof, and relates to the technical field of road pavement. On one hand, the steel bridge deck pavement structure of the non-motor vehicle lane is characterized in that a cold-mix resin bonding layer, a cold-mix resin mixture layer and an asphalt concrete layer are sequentially paved on the surface layer of a bridge deck steel plate from bottom to top; the cold-mix resin bonding layer comprises the following components in percentage by weight: 1 and a component A and a component B. The component A comprises the following raw materials: 618 epoxy resin, benzyl alcohol, 70# asphalt, styrene-isoprene-styrene block copolymer and carbon nano-tubes; the component B comprises the following raw materials: t31,650 polyamide, benzyl alcohol and 70# bitumen. The application develops a novel material aiming at the steel bridge deck pavement structure of the non-motor vehicle lane, improves the cohesiveness between the steel bridge deck pavement structure of the non-motor vehicle lane and the steel bridge deck, and effectively prevents the non-motor vehicle lane from cracking.
Description
Technical Field
The application relates to the technical field of railway paving, in particular to a steel bridge deck paving structure of a non-motor vehicle lane.
Background
With the increasing popularity of sharing single vehicles and sharing electric vehicles, more and more people choose to travel by bicycles or electric vehicles, and therefore, higher requirements are put forward on non-motor vehicle pavement. Compared with the pavement of a common pavement non-motor vehicle lane, the pavement of the steel bridge surface non-motor vehicle lane has higher requirement.
Due to the comprehensive and repeated effects of factors such as driving load and climate environment, the pavement of the steel bridge surface is easy to damage and destroy too early, and the whole stress function of the steel bridge and the normal operation of traffic and transportation are seriously affected. When the weather temperature changes, the steel plate is easy to generate thermal expansion and cold contraction to generate deformation, the surface of the steel plate is smoother, the cohesiveness is lower, and the steel plate is difficult to integrate with a pavement layer. In addition, the steel bridge pavement layer is impacted by the driving load, so that the steel bridge pavement layer is deformed, cracked, empty slot, slid and other adverse conditions are caused.
Therefore, a novel special material for paving the steel bridge deck non-motor vehicle lanes needs to be developed, and the cohesiveness of the steel bridge deck and a paving layer and the performances of preventing diseases such as deformation, cracking and the like are enhanced.
Disclosure of Invention
In order to solve at least one technical problem, a novel special material for paving a steel bridge deck non-motor vehicle road surface is developed, the cohesiveness of the steel bridge deck and a paving layer is enhanced, and the performances of deformation, cracking and other diseases are prevented.
On one hand, according to the steel bridge deck pavement structure of the non-motor vehicle lane, the cold-mix resin bonding layer, the cold-mix resin mixed layer and the asphalt concrete layer are paved on the surface layer of the bridge deck steel plate from bottom to top in sequence;
wherein, cold mix resin tie coat includes cold mix resin binder, cold mix resin binder includes that the weight ratio is 1:1, a component A and a component B;
the component A comprises the following raw materials in parts by weight: 40-60 parts of 618 epoxy resin, 5-20 parts of benzyl alcohol, 5-20 parts of 70# asphalt, 5-15 parts of styrene-isoprene-styrene segmented copolymer and 2-5 parts of carbon nano tubes;
the component B comprises the following raw materials in parts by weight: 20-40 parts of T31, 5-20 parts of 650 polyamide, 10-25 parts of benzyl alcohol and 5-20 parts of 70# asphalt.
By adopting the technical scheme, the steel bridge deck pavement structure of the non-motor vehicle lane prepared by adopting specific raw materials and proportions has good steel plate cohesiveness and deformation and cracking resistance. 618 epoxy resin has excellent adhesive property, can strengthen the adhesive force between the steel plate and each pavement layer, has good heat resistance, and can keep the stability and performance of the pavement structure in a high-temperature environment. The styrene-isoprene-styrene block copolymer has good cohesive force, good cohesiveness and good compatibility with other additives, can be well adhered with other raw materials and steel plates to form firm binding force, has good elasticity and higher tensile strength, can keep good flexibility at low temperature, and can prevent diseases such as layer changing, sliding and the like of a pavement structure. The carbon nano tube has excellent mechanical properties, can obviously improve the bearing capacity and deformation resistance of the pavement structure, can also effectively resist the expansion of cracks, and improves the crack resistance of the bridge deck pavement material. T31 and 650 polyamide can fill the capillary hole and the crack of structure of mating formation, strengthens the bearing capacity and the durability of structure of mating formation, also can form the waterproof membrane of one deck seal, can prevent effectively that moisture from permeating to the bridge floor lower floor, protection steel sheet from water corrosion and damage.
Optionally, in the steel bridge deck pavement structure of the non-motor vehicle lane, the weight ratio of 618 epoxy resin to benzyl alcohol to 70# asphalt in the component A of the cold-mix resin binder is 5:1:1.
By adopting the technical scheme, the proportion of 618 epoxy resin, benzyl alcohol and 70# asphalt in the component A of the cold-mix resin binder is further limited, so that the binding force between the cold-mix resin binder layer and the steel plate and the cold-mix resin mixed material layer can be further improved, and diseases such as sliding and deformation of a paving structure caused by smooth surfaces of the steel plate are effectively prevented.
Optionally, in the steel bridge deck pavement structure of the non-motor vehicle lane, in the component A of the cold-mix resin binder, the weight ratio of the styrene-isoprene-styrene block copolymer to the carbon nano tube is 3:1.
By adopting the technical scheme, the proportion of the styrene-isoprene-styrene block copolymer and the carbon nano tube in the component A of the cold-mix resin binder is further limited, so that the high-low temperature resistance of the cold-mix resin binder is further improved. Meanwhile, the surface of the carbon nano tube has high delocalized large pi bond energy which forms pi-pi interaction with styrene molecules with poor compatibility with asphalt in the styrene-isoprene-styrene segmented copolymer, so that the compatibility of the styrene-isoprene-styrene segmented copolymer and asphalt is improved, and the stability of a paving structure can be further improved.
Optionally, in the steel bridge deck pavement structure of the non-motor vehicle lane, in the component A of the cold-mix resin binder, the block ratio of the styrene block to the isoprene block in the styrene-isoprene-styrene block copolymer is 15-30:70-85.
By adopting the technical scheme, the styrene-isoprene-styrene block copolymer has the thermoplasticity of styrene plastics and the rebound resilience and flexibility of isoprene rubber, and meanwhile, the isoprene of the middle block has a methyl side chain, so that the styrene-isoprene-styrene block copolymer has good cohesive force, good cohesiveness and good compatibility. By limiting the block ratio of the styrene block to the isoprene block, the excellent performance of the styrene-isoprene-styrene block copolymer can further improve the stability of various aspects of paving structures.
1. Optionally, in the steel bridge deck pavement structure of the non-motor vehicle lane, the cold-mix resin bonding layer further comprises 5-10 parts of benzyl alcohol modified polyacrylonitrile fiber, the cold-mix resin bonding material further comprises benzyl alcohol modified polyacrylonitrile fiber, and the weight ratio of the benzyl alcohol modified polyacrylonitrile fiber to the components A and B of the cold-mix resin bonding material is (0.2-0.4): 1:1.
optionally, the benzyl alcohol modified polyacrylonitrile fiber has a length of 6-10mm.
By adopting the technical scheme, the benzyl alcohol modified polyacrylonitrile fiber is further added, the length of the added benzyl alcohol modified polyacrylonitrile fiber is further limited, the strength and toughness of the cold-mix resin bonding layer and the low-temperature cracking resistance can be effectively enhanced, and simultaneously, the hydroxyl groups, carboxyl groups and other groups of the benzyl alcohol modified polyacrylonitrile fiber can be subjected to crosslinking reaction with the epoxy resin to form a reticular structure, so that the bonding among the raw materials of the cold-mix resin bonding layer is tighter, and the prepared paving structure is good in strength, toughness, low-temperature resistance and stability.
In a second aspect, the application provides a method for preparing the steel bridge deck pavement structure of the non-motor vehicle lane, which comprises the following steps:
s1, taking the raw materials of the component A, putting the raw materials into a container according to the weight ratio, mixing and fully stirring to prepare the component A for later use;
taking the raw materials of the component B, putting the raw materials into another container according to the weight ratio, mixing and fully stirring to prepare the component B for standby;
then mixing A, B components according to a proportion and fully stirring to prepare a cold-mix resin binder;
s2, uniformly coating the cold-mix resin binder prepared in the step S1 on a steel plate, spreading a layer of broken stone, and curing to form a cold-mix resin binder;
s3, uniformly coating the cold-mix resin binder on the surface of the crushed stone, penetrating the cold-mix resin binder into gaps of the crushed stone, and spreading the cold-mix resin mixture on the cold-mix resin binder to form a cold-mix resin mixture layer;
s4, pouring asphalt concrete on the cold-mix resin mixture layer to form an asphalt concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
By adopting the technical scheme, the preparation method of the steel bridge deck pavement structure of the non-motor vehicle lane is simple to operate, and the prepared steel bridge deck pavement structure of the non-motor vehicle lane has good steel plate cohesiveness and deformation and cracking resistance.
Optionally, the preparation method of the steel bridge deck pavement structure of the non-motor vehicle lane further comprises the step of sand blasting the steel plate to remove rust, wherein the cleanliness of the steel plate after sand blasting and rust removal is not lower than the Sa2.5 level, and the roughness is 50-100 mu m.
Through adopting above-mentioned technical scheme, rust corrosion and oxide layer on steel sheet surface can effectively be got rid of in the sand blasting rust cleaning, prevents further corruption, prolongs the life of steel bridge, can increase the roughness on steel sheet surface simultaneously, provides better cohesiveness, makes the layer of mating formation and the combination of steel sheet more firm.
Optionally, in the method for preparing the steel bridge deck pavement structure of the non-motor vehicle lane, the thickness of the cold mix resin mixture layer in the step S3 is 1.5-3cm, and the thickness of the asphalt concrete layer in the step S4 is 4-5cm.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the steel bridge deck pavement structure of the non-motor vehicle lane prepared by adopting specific raw materials and proportions has good steel plate cohesiveness and deformation and cracking resistance. 618 epoxy resin has excellent adhesive property, can strengthen the adhesive force between the steel plate and each pavement layer, has good heat resistance, and can keep the stability and performance of the pavement structure in a high-temperature environment. The styrene-isoprene-styrene block copolymer has good cohesive force, good cohesiveness and good compatibility with other additives, can be well adhered with other raw materials and steel plates to form firm binding force, has good elasticity and higher tensile strength, can keep good flexibility at low temperature, and can prevent diseases such as layer changing, sliding and the like of a pavement structure. The carbon nano tube has excellent mechanical properties, can obviously improve the bearing capacity and deformation resistance of the pavement structure, can also effectively resist the expansion of cracks, and improves the crack resistance of the bridge deck pavement material. T31 and 650 polyamide can fill the capillary hole and the crack of structure of mating formation, strengthens the bearing capacity and the durability of structure of mating formation, also can form the waterproof membrane of one deck seal, can prevent effectively that moisture from permeating to the bridge floor lower floor, protection steel sheet from water corrosion and damage.
2. The preparation method of the steel bridge deck pavement structure of the non-motor vehicle lane is simple to operate, and the prepared steel bridge deck pavement structure of the non-motor vehicle lane has good steel plate cohesiveness and deformation, cracking and other disease prevention performances. The rust and oxide layer on the surface of the steel plate can be effectively removed by sand blasting and rust removal before paving, further corrosion is prevented, the service life of the steel bridge is prolonged, meanwhile, the roughness of the surface of the steel plate can be increased, better cohesiveness is provided, and the paving layer and the steel plate are combined more firmly.
Detailed Description
The present application will be described in further detail with reference to examples.
The application designs a steel bridge deck pavement structure of a non-motor vehicle lane, wherein a cold-mix resin bonding layer, a cold-mix resin mixture layer and an asphalt concrete layer are sequentially paved on the surface layer of a bridge deck steel plate from bottom to top;
wherein, cold mix resin tie coat includes cold mix resin binder, cold mix resin binder includes that the weight ratio is 1:1, a component A and a component B;
the component A comprises the following raw materials in parts by weight: 40-60 parts of 618 epoxy resin, 5-20 parts of benzyl alcohol, 5-20 parts of 70# asphalt, 5-15 parts of styrene-isoprene-styrene segmented copolymer and 2-5 parts of carbon nano tubes;
the component B comprises the following raw materials in parts by weight: 20-40 parts of T31, 5-20 parts of 650 polyamide, 10-25 parts of benzyl alcohol and 5-20 parts of 70# asphalt.
The steel bridge deck pavement structure of the non-motor vehicle lane is prepared by the following method, and comprises the following steps:
s1, taking the raw materials of the component A, putting the raw materials into a container according to the weight ratio, mixing and fully stirring to prepare the component A for later use;
taking the raw materials of the component B, putting the raw materials into another container according to the weight ratio, mixing and fully stirring to prepare the component B for standby;
then mixing A, B components according to a proportion and fully stirring to prepare a cold-mix resin binder;
s2, uniformly coating the cold-mix resin binder prepared in the step S1 on a steel plate, spreading a layer of broken stone, and curing to form a cold-mix resin binder;
s3, uniformly coating the cold-mix resin binder on the surface of the crushed stone, penetrating the cold-mix resin binder into gaps of the crushed stone, and spreading the cold-mix resin mixture on the cold-mix resin binder to form a cold-mix resin mixture layer;
s4, pouring asphalt concrete on the cold-mix resin mixture layer to form an asphalt concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
The steel bridge deck pavement structure of the non-motor vehicle lane can be applied to the field of non-motor vehicle lane bridges.
The application aims to solve the problems that the pavement of the steel bridge surface is easy to be damaged and destroyed too early due to the comprehensive and repeated actions of factors such as driving load, climate environment and the like, and the integral stress function of the steel bridge and the normal operation of traffic and transportation are seriously affected. When the weather temperature changes, the steel plate is easy to generate thermal expansion and cold contraction to generate deformation, the surface of the steel plate is smoother, the cohesiveness is lower, and the steel plate is difficult to integrate with a pavement layer. In addition, the steel bridge pavement layer is impacted by the driving load, so that the steel bridge pavement layer is deformed, cracked, empty slot, slid and other adverse conditions are caused.
The application starts from the technical problems, and the steel bridge deck pavement structure of the non-motor vehicle lane prepared by adopting specific raw materials and proportions has good steel plate cohesiveness and deformation and cracking resistance and other diseases. 618 epoxy resin has excellent adhesive property, can strengthen the adhesive force between the steel plate and each pavement layer, has good heat resistance, and can keep the stability and performance of the pavement structure in a high-temperature environment. The styrene-isoprene-styrene block copolymer has good cohesive force, good cohesiveness and good compatibility with other additives, can be well adhered with other raw materials and steel plates to form firm binding force, has good elasticity and higher tensile strength, can keep good flexibility at low temperature, and can prevent diseases such as layer changing, sliding and the like of a pavement structure. The carbon nano tube has excellent mechanical properties, can obviously improve the bearing capacity and deformation resistance of the pavement structure, can also effectively resist the expansion of cracks, and improves the crack resistance of the bridge deck pavement material. T31 and 650 polyamide can fill the capillary hole and the crack of structure of mating formation, strengthens the bearing capacity and the durability of structure of mating formation, also can form the waterproof membrane of one deck seal, can prevent effectively that moisture from permeating to the bridge floor lower floor, protection steel sheet from water corrosion and damage.
The raw materials adopted by the application are all from commercial products, and the specific conditions are as follows: 618 epoxy resin, jiangsu Sanmu group Co., ltd;
benzyl alcohol, hubei green home materials Co., ltd., purity 99.95%;
70# asphalt, purity 99% from general practice (Shaanxi) Co., ltd;
t31 epoxy hardener, henan Tianze Co., ltd;
650 polyamide, danshenbao limited;
styrene-isoprene-styrene block copolymer, beijing Walker biotechnology Co., ltd, purity 99%;
carbon nanotubes, jiaxing Bonus New materials Co., ltd;
polyacrylonitrile fiber, shandong Hengyi New Material Co., ltd;
the cold mix resin binders of examples 1-17 and comparative examples 1-3 below were tested for breaking strength, elongation at break, cure time, fingering time, pullout strength according to the JT/T1131-2017 test method, with the specifications shown in Table 1.
Breaking strength: refers to the ability of the bond interface to fracture when subjected to an external force after bonding with a cold mix resin binder.
Elongation at break: refers to the percentage of tensile deformation that a specimen can undergo before breaking in a tensile breaking test. This index reflects the ductility and flexibility of the cold mix resin binder when subjected to tensile forces. The higher the elongation at break, the greater the tensile deformation which can occur under stress, and the better the toughness.
Curing time: refers to the time required for the cold mix resin binder to reach a usable state from a liquid state.
Finger dry time: refers to the time that the surface of the cold-mix resin binder is completely dry and tack-free after construction.
Drawing strength: refers to the evaluation of the adhesive property and the tensile strength index of the cold-mix resin binder in the drawing test. The index is used to measure the bond strength between the cold mix resin binder and other materials.
Table 1 technical requirements for Cold mix resin binders
| Detecting items | Technical requirements |
| Finger dry time (25 ℃ C.) | 8.0h≤t≤10h |
| Curing time (25 ℃ C.) | ≤72h |
| Elongation at break (25 ℃ C.) | ≥70％ |
| Breaking strength (25 ℃ C.) | ≥10MPa |
| Drawing strength (70 ℃ C.) | ≥3.0MPa |
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Preparation examples 1-5 preparation of Cold mix resin binders
Preparation example 1
In preparation example 1, the cold-mix resin binder comprises a component A and a component B, and the raw materials and the amounts thereof are as follows:
a component: 40g618 epoxy resin, 5g benzyl alcohol, 5g70# pitch, 5g styrene-isoprene-styrene block copolymer and 2g carbon nanotubes;
wherein, in the styrene-isoprene-styrene block copolymer, the block ratio of the styrene block to the isoprene block is 15:85;
and the component B comprises the following components: 20g of T31 epoxy hardener, 5g of 650 polyamide, 10g of benzyl alcohol and 5g of No. 70 bitumen.
The preparation method of the cold-mix resin binder comprises the following steps: putting the raw materials of the component A into a container, mixing and stirring at the stirring speed of 500rpm for 1h; putting the raw materials of the component B into another container, mixing and stirring at the stirring speed of 500rpm for 1h; mixing and stirring the component A and the component B with equal mass at the stirring speed of 800rpm for 2 hours to obtain a cold-mixed resin binder;
preparation example 2
In preparation example 2, the cold-mix resin binder comprises a component A and a component B, and the raw materials and the amounts thereof are as follows: a component: 45g618 epoxy resin, 8g benzyl alcohol, 8g70# pitch, 5g styrene-isoprene-styrene block copolymer and 3g carbon nanotubes;
wherein, in the styrene-isoprene-styrene block copolymer, the block ratio of the styrene block to the isoprene block is 20:80; and the component B comprises the following components: 30g of T31 epoxy hardener, 10g of 650 polyamide, 10g of benzyl alcohol and 15g of No. 70 bitumen.
The preparation method of the cold-mix resin binder comprises the following steps: the component A raw materials are put into a container to be mixed and stirred, the stirring speed is 600rpm, and the stirring time is 1h; putting the raw materials of the component B into another container, mixing and stirring at 600rpm for 1h; mixing and stirring the component A and the component B with equal mass at 900rpm for 2 hours to obtain a cold-mixed resin binder;
preparation example 3
In preparation example 3, the cold-mix resin binder comprises a component A and a component B, and the raw materials and the amounts thereof are as follows: a component: 50g618 epoxy resin, 10g benzyl alcohol, 10g70# pitch, 12g styrene-isoprene-styrene block copolymer and 4g carbon nanotubes;
wherein, in the styrene-isoprene-styrene block copolymer, the block ratio of the styrene block to the isoprene block is 25:75; and the component B comprises the following components: 25g of T31 epoxy hardener, 10g of 650 polyamide, 15g of benzyl alcohol and 10g of 70# asphalt.
The preparation method of the cold-mix resin binder comprises the following steps: putting the raw materials of the component A into a container, mixing and stirring at the stirring speed of 700rpm for 0.5h; putting the raw materials of the component B into another container, mixing and stirring at the stirring speed of 700rpm for 0.5h; mixing and stirring the component A and the component B with equal mass at 900rpm for 1h to obtain a cold-mixed resin binder;
preparation example 4
In preparation example 4, the cold-mix resin binder comprises a component A and a component B, and the raw materials and the amounts thereof are as follows: a component: 55g618 epoxy resin, 15g benzyl alcohol, 15g70# asphalt, 10g styrene-isoprene-styrene block copolymer and 4g carbon nano tube;
wherein, in the styrene-isoprene-styrene block copolymer, the block ratio of the styrene block to the isoprene block is 30:70; and the component B comprises the following components: 35g of T31 epoxy hardener, 15g of 650 polyamide, 20g of benzyl alcohol and 15g of 70# bitumen.
The preparation method of the cold-mix resin binder comprises the following steps: putting the raw materials of the component A into a container, mixing and stirring at 800rpm for 0.5h; putting the raw materials of the component B into another container, mixing and stirring at 800rpm for 0.5h; mixing and stirring the component A and the component B with equal mass at the stirring speed of 1000rpm for 1h to obtain a cold-mixed resin binder;
preparation example 5
In preparation example 5, the cold-mix resin binder comprises a component A and a component B, and the raw materials and the amounts thereof are as follows: a component: 60g618 epoxy resin, 20g benzyl alcohol, 20g70# asphalt, 15g styrene-isoprene-styrene block copolymer and 5g carbon nano tube;
wherein, in the styrene-isoprene-styrene block copolymer, the block ratio of the styrene block to the isoprene block is 30:70; and the component B comprises the following components: 40g of T31 epoxy hardener, 20g of 650 polyamide, 25g of benzyl alcohol and 20g of No. 70 bitumen.
The preparation method of the cold-mix resin binder comprises the following steps: putting the raw materials of the component A into a container, mixing and stirring at the stirring speed of 700rpm for 0.5h; putting the raw materials of the component B into another container, mixing and stirring at the stirring speed of 700rpm for 0.5h; mixing and stirring the component A and the component B with equal mass at the stirring speed of 1000rpm for 1h to obtain a cold-mixed resin binder;
preparation example 6 preparation of Cold mix resin mixture
Preparation example 6
In preparation example 6, the cold-mix resin mixture layer comprises a component C and a component D, and the raw materials and the amounts thereof are as follows: and C, component: 30g618 epoxy resin, 15g benzyl alcohol and 15g70# bitumen;
and D, component: 10g of T31 epoxy hardener, 25g of 650 polyamide, 15g of benzyl alcohol and 10g of No. 70 bitumen.
The preparation method of the cold-mix resin mixture comprises the following steps: putting the raw materials of the component C into a container, mixing and stirring at 600rpm for 1h; putting the raw materials of the component D into another container, mixing and stirring at 600rpm for 1h; mixing and stirring the component C and the component D with equal mass at the stirring speed of 800rpm for 2 hours to obtain a cold-mixed resin mixture;
examples 1 to 5
Example 1
A preparation method of a steel bridge deck pavement structure of a non-motor vehicle lane comprises the following steps:
s1, taking the cold-mix resin binder prepared in the preparation example 1;
s2, uniformly coating the cold-mix resin binder prepared in the preparation example 1 on a steel plate, spreading a layer of single-particle-size broken stone with the diameter of 3-5mm on the surface of the steel plate, and curing to obtain a cold-mix resin binder;
s3, uniformly spreading the cold-mix resin binder prepared in the preparation example 1 on the cold-mix resin binder, wherein the cold-mix resin binder permeates into gaps of crushed stone, and spreading the cold-mix resin mixture layer prepared in the preparation example 6 on the cold-mix resin binder by 1.5 cm; and S4, pouring asphalt concrete for 4cm on the cold-mix resin mixed material layer to form a concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
Example 2
A preparation method of a steel bridge deck pavement structure of a non-motor vehicle lane comprises the following steps:
s1, taking the cold-mix resin binder prepared in preparation example 2;
s2, uniformly coating the cold-mix resin binder prepared in the preparation example 2 on a steel plate, spreading a layer of single-particle-size broken stone with the diameter of 3-5mm on the surface of the steel plate, and curing to obtain the cold-mix resin binder;
s3, uniformly spreading the cold-mix resin binder prepared in the preparation example 2 on the cold-mix resin binder, wherein the cold-mix resin binder permeates into gaps of crushed stone, and spreading the cold-mix resin mixture layer prepared in the preparation example 6 on the cold-mix resin binder for 2 cm; and S4, pouring asphalt concrete for 4.5cm on the cold-mix resin mixed material layer to form a concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
Example 3
A preparation method of a steel bridge deck pavement structure of a non-motor vehicle lane comprises the following steps:
s1, taking the cold-mix resin binder prepared in preparation example 3;
s2, uniformly coating the cold-mix resin binder prepared in the preparation example 3 on a steel plate, spreading a layer of single-particle-size broken stone with the diameter of 3-5mm on the surface of the steel plate, and curing to obtain the cold-mix resin binder;
s3, uniformly spreading the cold-mix resin binder prepared in the preparation example 3 on the cold-mix resin binder, wherein the cold-mix resin binder permeates into gaps of crushed stone, and spreading the cold-mix resin mixture layer prepared in the preparation example 6 on the cold-mix resin binder by 2.5 cm; and S4, pouring asphalt concrete for 4cm on the cold-mix resin mixed material layer to form a concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
Example 4
A preparation method of a steel bridge deck pavement structure of a non-motor vehicle lane comprises the following steps:
s1, taking the cold-mix resin binder prepared in preparation example 4;
s2, uniformly coating the cold-mix resin binder prepared in the preparation example 4 on a steel plate, spreading a layer of single-particle-size broken stone with the diameter of 3-5mm on the surface of the steel plate, and curing to obtain the cold-mix resin binder;
s3, uniformly spreading the cold-mix resin binder prepared in the preparation example 4 on the cold-mix resin binder, wherein the cold-mix resin binder permeates into gaps of crushed stone, and spreading the cold-mix resin mixture layer prepared in the preparation example 6 on the cold-mix resin binder for 3 cm; and S4, pouring asphalt concrete for 5cm on the cold-mix resin mixed material layer to form a concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
Example 5
A preparation method of a steel bridge deck pavement structure of a non-motor vehicle lane comprises the following steps:
s1, taking the cold-mix resin binder prepared in preparation example 5;
s2, uniformly coating the cold-mix resin binder prepared in the preparation example 5 on a steel plate, spreading a layer of single-particle-size broken stone with the diameter of 3-5mm on the surface of the steel plate, and curing to obtain the cold-mix resin binder;
s3, uniformly spreading the cold-mix resin binder prepared in the preparation example 5 on the cold-mix resin binder, wherein the cold-mix resin binder permeates into gaps of crushed stone, and spreading the cold-mix resin mixture layer prepared in the preparation example 6 on the cold-mix resin binder for 2 cm;
and S4, pouring asphalt concrete for 5cm on the cold-mix resin mixed material layer to form a concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
Comparative examples 1 to 4
Comparative example 1
This comparative example 1 differs from example 1 in that: the content of carbon nanotubes in this comparative example was 1kg.
Comparative example 2
This comparative example 2 differs from example 1 in that: the content of carbon nanotubes in this comparative example was 8kg.
Comparative example 3
This comparative example 3 differs from example 1 in that: the content of the styrene-isoprene-styrene block copolymer in this comparative example was 1kg.
Comparative example 4
This comparative example 4 differs from example 1 in that: the content of the styrene-isoprene-styrene block copolymer in this comparative example was 20kg.
The cold mix resin binders prepared in examples 1-5 and comparative examples 1-4 were tested for properties and the test results are recorded in table 2.
TABLE 2 summary of Performance test tables for examples 1-5 and comparative examples 1-4
As shown in the results of Table 2, the cold-mix resin binder prepared by the raw material dosage and proportion and the preparation method provided by the application has excellent comprehensive performance, so that the steel bridge deck pavement structure has better toughness and stronger bonding force between the steel bridge deck pavement structure and a steel plate when the cold-mix resin binder is adopted to prepare the steel bridge deck pavement structure of a non-motor vehicle lane. From the results of examples 1 to 5, comparative examples 1 to 4 and Table 1, on the one hand, when the amounts of carbon nanotubes and styrene-isoprene-styrene block copolymer were small, the various indexes tested failed to meet the various technical requirements of the cold mix resin binder; on the other hand, when the amount of the carbon nanotube and the styrene-isoprene-styrene block copolymer is too large, although the basic technical requirements of each index can be satisfied, the cost is too high, and even the adhesive property and the cracking resistance of the cold mix resin binder are not good yet in example 1. Therefore, it is important to select an appropriate amount of carbon nanotubes and styrene-isoprene-styrene block copolymer.
Example 6
Example 6 differs from example 3 in that: in the component A of the cold-mix resin bonding layer in the embodiment, the mass of 618 epoxy resin is 40g, the mass of benzyl alcohol is 15g, the mass of 70# asphalt is 15g, and the weight ratio of the 618 epoxy resin to the 70# asphalt is 8:3:3.
Example 7
Example 7 differs from example 3 in that: in the component A of the cold-mix resin bonding layer in the embodiment, the weight of 618 epoxy resin is 60g, the weight of benzyl alcohol is 5g, the weight of 70# asphalt is 5g, and the weight ratio of the 618 epoxy resin to the 70# asphalt is 12:1:1.
Example 8
Example 8 differs from example 3 in that: in the component A of the cold-mix resin bonding layer in this embodiment, the weight of the styrene-isoprene-styrene block copolymer is 11g, the weight of the carbon nanotube is 5g, and the weight ratio of the two is 2.2:1.
Example 9
Example 9 differs from example 3 in that: in the component A of the cold-mix resin bonding layer in this embodiment, the weight of the styrene-isoprene-styrene block copolymer is 14g, the weight of the carbon nanotube is 2g, and the weight ratio of the two is 7:1.
Example 10
Example 10 differs from example 3 in that: in the cold mix resin adhesive layer A component of this example, the block ratio of the styrene segment to the isoprene segment in the styrene-isoprene-styrene block copolymer in the cold mix resin adhesive layer A component is 10:90.
Example 11
Example 11 differs from example 3 in that: in the cold mix resin adhesive layer A component of this example, the block ratio of the styrene segment to the isoprene segment in the styrene-isoprene-styrene block copolymer in the cold mix resin adhesive layer A component is 40:60.
Example 12
Example 12 differs from example 3 in that: based on the embodiment 3, the cold-mix resin binder in the embodiment further comprises benzyl alcohol modified polyacrylonitrile fiber with the length of 10mm, and the benzyl alcohol modified polyacrylonitrile fiber, the component A and the component B are mixed according to the weight ratio of 0.3:1:1 to obtain the cold-mix resin binder; the remaining steps, conditions and parameters were the same as in example 3.
Example 13
Example 13 differs from example 3 in that: based on the embodiment 3, the cold-mix resin binder in the embodiment further comprises benzyl alcohol modified polyacrylonitrile fiber with the length of 8mm, and the benzyl alcohol modified polyacrylonitrile fiber, the component A and the component B are mixed according to the weight ratio of 0.2:1:1 to obtain the cold-mix resin binder; the remaining steps, conditions and parameters were the same as in example 3.
Example 14
Example 14 differs from example 3 in that: based on the embodiment 3, the cold-mix resin binder in the embodiment further comprises benzyl alcohol modified polyacrylonitrile fiber with the length of 6mm, and the benzyl alcohol modified polyacrylonitrile fiber, the component A and the component B are mixed according to the weight ratio of 0.4:1:1 to obtain the cold-mix resin binder; the remaining steps, conditions and parameters were the same as in example 3.
Example 15
Example 15 differs from example 3 in that: based on the embodiment 3, the preparation method of the embodiment further comprises, before the step S2, sand blasting the steel plate to remove rust, wherein the cleanliness of the steel plate after sand blasting and rust removal is of the Sa2.5 grade, and the roughness is 50 μm; the remaining steps, conditions and parameters were the same as in example 3.
Example 16
Example 16 differs from example 3 in that: based on the embodiment 3, the preparation method of the embodiment further comprises, before the step S2, sand blasting the steel plate to remove rust, wherein the cleanliness of the steel plate after sand blasting and rust removal is of the Sa2.5 grade, and the roughness is 80 μm; the remaining steps, conditions and parameters were the same as in example 3.
Example 17
Example 17 differs from example 3 in that: based on the embodiment 3, the preparation method of the embodiment further comprises, before the step S2, sand blasting the steel plate to remove rust, wherein the cleanliness of the steel plate after sand blasting and rust removal is of the Sa2.5 grade, and the roughness is 100 μm; the remaining steps, conditions and parameters were the same as in example 3.
The cold mix resin binders prepared in examples 6-17 were tested for properties and the test results are reported in table 3.
TABLE 3 Performance test summary tables for examples 6-17 and example 3
As can be seen from the results of examples 6-7 and example 3, the weight ratio of 618 epoxy resin, benzyl alcohol and 70# asphalt in the cold-mix resin bonding layer A component can influence various indexes of the cold-mix resin bonding material, and when the weight of 618 epoxy resin, benzyl alcohol and 70# asphalt in the cold-mix resin bonding layer A component is 5:1:1, the prepared cold-mix resin bonding material has excellent comprehensive performance, so that the steel bridge deck pavement structure has better toughness, and the bonding force between the steel bridge deck pavement structure and the steel plate is stronger;
from the results of examples 8 to 9 and example 3, the weight ratio of the styrene-isoprene-styrene block copolymer to the carbon nanotubes in the cold-mix resin bonding layer A component is changed to affect various indexes of the cold-mix resin bonding material, and when the weight ratio of the styrene-isoprene-styrene block copolymer to the carbon nanotubes in the cold-mix resin bonding layer A component is 3:1, the prepared cold-mix resin bonding material has excellent comprehensive performance, so that the steel bridge deck pavement structure has better toughness, and the bonding force between the steel bridge deck pavement structure and the steel plate is stronger;
from the results of examples 10-11 and example 3, changing the block ratio of the styrene-isoprene-styrene block copolymer affects the properties of the cold mix resin binder, and when the block ratio of the styrene segment to the isoprene segment is 15-30:70-85, the prepared cold mix resin binder has excellent comprehensive properties, so that the steel bridge deck pavement structure has better toughness, and the binding force between the steel bridge deck pavement structure and the steel plate is stronger;
from the results of examples 12-14 and example 3, the addition of a certain length of benzyl alcohol modified polyacrylonitrile fiber can obviously improve various indexes of the cold-mix resin binder, which indicates that the benzyl alcohol modified polyacrylonitrile fiber can strengthen various performances of the cold-mix resin binder, so that the steel bridge deck pavement structure has better toughness, and the bonding force between the steel bridge deck pavement structure and the steel plate is stronger;
from the results of examples 12 to 14 and example 3, the adhesion between the steel bridge deck pavement structure and the steel sheet can be enhanced by sand blasting the steel sheet and then coating the steel sheet with the cold mix resin binder.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. A steel bridge deck pavement structure of a non-motor vehicle lane is characterized in that a cold-mix resin bonding layer, a cold-mix resin mixture layer and an asphalt concrete layer are sequentially paved on a bridge deck steel plate surface layer from bottom to top;
wherein, cold mix resin tie coat includes cold mix resin binder, cold mix resin binder includes that the weight ratio is 1:1, a component A and a component B;
the component A comprises the following raw materials in parts by weight: 40-60 parts of 618 epoxy resin, 5-20 parts of benzyl alcohol, 5-20 parts of 70# asphalt, 5-15 parts of styrene-isoprene-styrene segmented copolymer and 2-5 parts of carbon nano tubes;
the component B comprises the following raw materials in parts by weight: 20-40 parts of T31, 5-20 parts of 650 polyamide, 10-25 parts of benzyl alcohol and 5-20 parts of 70# asphalt.
2. The steel bridge deck pavement structure of a non-motor vehicle lane according to claim 1, wherein the weight ratio of 618 epoxy resin, benzyl alcohol and 70# asphalt in the cold-mix resin binder component A is 5:1:1.
3. The steel bridge deck pavement structure of a non-motor vehicle lane according to claim 1, wherein the weight ratio of the styrene-isoprene-styrene block copolymer to the carbon nanotubes in the cold mix resin binder component a is 3:1.
4. The steel bridge deck pavement structure of a non-motor vehicle according to claim 1, wherein in the cold-mix resin binder a component, the block ratio of styrene segment to isoprene segment is 15-30:70-85.
5. The steel bridge deck pavement structure of a non-motor vehicle lane according to claim 1, wherein the cold mix resin binder further comprises benzyl alcohol modified polyacrylonitrile fibers, and the weight ratio of the benzyl alcohol modified polyacrylonitrile fibers to the components a and B of the cold mix resin binder is (0.2-0.4): 1:1.
6. the steel bridge deck pavement structure for a non-motor vehicle lane according to claim 5, wherein the benzyl alcohol modified polyacrylonitrile fiber has a length of 6-10mm.
7. A method of making a steel deck pavement structure for a non-motor vehicle lane as defined in claim 1, comprising the steps of:
s1, taking the raw materials of the component A, putting the raw materials into a container according to the weight ratio, mixing and fully stirring to prepare the component A for later use;
taking the raw materials of the component B, putting the raw materials into another container according to the weight ratio, mixing and fully stirring to prepare the component B for standby;
then mixing A, B components according to a proportion and fully stirring to prepare a cold-mix resin binder;
s2, uniformly coating the cold-mix resin binder prepared in the step S1 on a steel plate, spreading a layer of broken stone, and curing to form a cold-mix resin binder;
s3, uniformly coating the cold-mix resin binder on the surface of the crushed stone, penetrating the cold-mix resin binder into gaps of the crushed stone, and spreading the cold-mix resin mixture on the cold-mix resin binder to form a cold-mix resin mixture layer;
s4, pouring asphalt concrete on the cold-mix resin mixture layer to form an asphalt concrete layer, and then rolling to obtain the steel bridge deck pavement structure of the non-motor vehicle lane.
8. The method for manufacturing a steel bridge deck pavement structure for a non-motor vehicle lane according to claim 7, wherein the method further comprises the step of sand blasting the steel plate before the step S2, wherein the cleanliness of the steel plate after sand blasting is not lower than the level Sa2.5, and the roughness is 50-100 μm.
9. The method for preparing a steel bridge deck pavement structure for a non-motor vehicle lane according to claim 7, wherein the thickness of the cold mix resin mixture layer in the step S3 is 1.5-3cm, and the thickness of the asphalt concrete layer in the step S4 is 4-5cm.
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