CN111423846A - Waterproof bonding layer material for bridge and tunnel road surface and preparation method and application thereof - Google Patents
Waterproof bonding layer material for bridge and tunnel road surface and preparation method and application thereof Download PDFInfo
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J195/00—Adhesives based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/32—Coherent pavings made in situ made of road-metal and binders of courses of different kind made in situ
- E01C7/325—Joining different layers, e.g. by adhesive layers; Intermediate layers, e.g. for the escape of water vapour, for spreading stresses
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/40—Plastics
Abstract
The invention discloses a waterproof bonding layer material for bridge and tunnel pavements, and a preparation method and application thereof. The material comprises waterborne epoxy resin, a waterborne epoxy resin curing agent aqueous solution, emulsified asphalt, waterborne polyurethane emulsion, graphene oxide, mineral active ultrafine powder and the like. Uniformly mixing aqueous epoxy resin, emulsified asphalt, aqueous polyurethane emulsion, graphene oxide and mineral active ultrafine powder to form a component A; aqueous solution of waterborne epoxy resin curing agent is used as a component B; and uniformly mixing the component A and the component B. The invention solves the defects of high cost, low strength, poor toughness, poor cohesiveness and the like of the existing waterproof bonding layer material, and obtains the environment-friendly material with low cost, high strength, good toughness, good durability, excellent cohesiveness and waterproof performance.
Description
Technical Field
The invention relates to a waterproof bonding layer material for bridge and tunnel pavements, and a preparation method and application thereof, and belongs to the technical field of road engineering materials.
Background
The high-speed development of urban modern construction makes the requirements on road service level more strict. However, the construction of urban infrastructure, especially road system, often lags behind the needs of economic development, the urban traffic flow is not smooth, the traffic jam phenomenon is increasingly serious, the road service level is rapidly reduced, and the upgrading and reconstruction of urban roads become an urgent matter, so that urban viaducts, urban tunnels and the like are continuously emerging, and the bridge and tunnel engineering gradually becomes an important part of the urban traffic construction system and bears heavy traffic tasks.
At present, the bridge and tunnel road pavement in cities at home and abroad mainly adopts a composite road surface structure, namely, an asphalt surface layer is paved on a cement concrete panel, and a waterproof bonding layer of the bridge and tunnel road surface is arranged between the cement concrete panel and the asphalt surface layer. The waterproof bonding layer has the function of connecting an upper structural layer and a lower structural layer to form an integral structure, ensures good stability between the cement concrete panel and a pavement layer, has main functions of bonding, waterproofing, stress absorption and the like, and has good stability and durability to play a very important role in the safety of the whole bridge tunnel structure.
At present, asphalt is used as a matrix material in most of waterproof bonding materials in China, and the waterproof bonding materials mainly comprise coil materials and coatings. Because the working environment of the bridge and tunnel road surface is more harsh than that of the common road surface, the problems of poor cohesiveness and easy water seepage mainly exist in the practical use, in addition, the construction is more complex, and the ever-increasing road performance requirements cannot be met. Later China began to research the water-based epoxy emulsified asphalt waterproof binding material, and the water-based epoxy emulsified asphalt waterproof binding material has the advantages of improving the binding property and the waterproofness, and has the defects of high brittleness, weak impact resistance, insufficient durability and higher cost, so that the application of the water-based epoxy emulsified asphalt waterproof binding material is greatly limited.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the existing bridge and tunnel road surface waterproof bonding layer material has the technical problems of high brittleness, weak impact resistance, insufficient durability, high cost and the like.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
the waterproof bonding layer material for the bridge and tunnel pavement is characterized by comprising the following components in percentage by mass:
preferably, the solid mass content of the water-based epoxy resin is 42-57%.
Preferably, the mass content of the curing agent in the aqueous solution of the waterborne epoxy resin curing agent is 35-55%; the curing agent adopts at least one of aliphatic amine, aromatic amine and acid anhydride which are modified by hydration.
Preferably, the emulsified asphalt is cationic emulsified asphalt with the solid mass content of 50-60%.
Preferably, the aqueous polyurethane emulsion is any one or more of pure aqueous polyurethane nanoemulsion, aqueous silicon-containing polyurethane nanoemulsion, aqueous fluorine-containing polyurethane nanoemulsion and aqueous polyurethane-acrylate copolymerization nanoemulsion, and the solid mass content of the aqueous polyurethane emulsion is 37-52%.
Preferably, the graphene oxide is an aqueous solution with the concentration of 1-2 mg/m L.
Preferably, the mineral active ultrafine powder is ultrafine fly ash and/or silica fume, and the average particle size is less than 9 mu m.
The invention also provides a preparation method of the waterproof bonding layer material for the bridge and tunnel pavement, which is characterized in that under the room temperature condition, the aqueous epoxy resin, the emulsified asphalt, the aqueous polyurethane emulsion, the graphene oxide and the mineral active ultrafine powder are uniformly mixed to form a component A; aqueous solution of waterborne epoxy resin curing agent is used as a component B; and uniformly mixing the component A and the component B.
The invention also provides application of the waterproof bonding layer material for bridge and tunnel pavements in road engineering.
Preferably, the bridge and tunnel pavement waterproof bonding layer material is used as a waterproof bonding layer to compound a bridge deck asphalt pavement layer and a cement concrete bridge base layer together.
The construction main process of the waterproof bonding layer material for the bridge and tunnel pavement comprises the following steps: the method comprises the steps of cement concrete panel pretreatment, spraying of waterproof bonding layer materials, curing of the waterproof bonding layer materials, asphalt concrete pavement and overall maintenance of the pavement.
The cement concrete panel pretreatment is to roughen the surface of the panel by adopting a full-automatic cleaning machine, clean impurities on the surface and improve the binding force between a waterproof binding layer material and the cement concrete panel.
The spraying of the waterproof bonding layer material refers to that the waterproof bonding layer material of the bridge and tunnel pavement prepared by the method is sprayed on the pretreated cement concrete panel by a spraying vehicle, and the spraying amount is 0.7-1 kg/m2Note that the longitudinal splice overlaps the sprinkled portion by 10 cm.
The maintenance of the waterproof bonding layer material refers to that after the waterproof bonding layer material is spread, the traffic is required to be sealed and dried under natural conditions, the maintenance is carried out until the material is not adhered to the wheels and the crawler of the paver, the maintenance time is about 2 days generally, and then the asphalt concrete material is spread.
The invention adds waterborne polyurethane emulsion, graphene oxide and mineral active ultrafine powder on the basis of the traditional waterborne epoxy asphalt waterproof bonding layer material.
The water-based polyurethane emulsion is added for improving the flexibility and the impact resistance of the bonding layer material, reducing the brittleness and simultaneously improving the overall waterproof performance and the durability of the bonding layer material.
The graphene oxide contains a large number of oxygen-containing functional groups including hydroxyl groups, epoxy groups and the like, has good water solubility, can be well dispersed in a water-based epoxy resin system, can greatly increase the mechanical property of a bonding layer material as a reinforcing phase, and improves the durability.
The mineral active ultrafine powder can be filled into a coarse pore structure area of a cement concrete interface transition area, the compactness of an interface transition layer is improved, the composite hydration effect of the mineral active ultrafine powder can obviously improve the bonding strength of the interface area between concrete and a bonding layer material, in addition, the addition of the mineral active ultrafine powder can replace a part of resin to achieve the effect of an additive, and the construction cost is reduced.
The aqueous solution of the waterborne epoxy resin and the waterborne epoxy resin curing agent can be cured at normal temperature, has long curing time and can artificially control the construction time.
The water-based epoxy asphalt waterproof bonding layer material provided by the invention can be mixed and paved at room temperature, and has small environmental pollution.
Compared with the prior art, the invention has the beneficial effects that:
the waterproof bonding layer material for the bridge and tunnel road surface, the preparation method and the application thereof provided by the invention solve the defects of high cost, low strength, poor toughness, poor cohesiveness and the like of the existing pure water-based epoxy asphalt waterproof bonding layer material, fully play the excellent performances of all components, obtain an environment-friendly material which is moderate in manufacturing cost, adjustable in curing time, good in toughness, high in cohesive strength, excellent in impact resistance and waterproof performance, good in durability, simple in preparation process, convenient to operate and excellent in cohesive performance and waterproof effect, are suitable for the bridge and tunnel road surface waterproof layer with severe traffic conditions, and have obvious economical efficiency and technical quality reliability.
Drawings
Fig. 1 is a schematic cross-sectional structure view of the waterproof bonding layer material for bridge and tunnel pavements provided by the invention.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
The solid content of the aqueous epoxy resin adopted in the embodiments 1-10 is 42-57%, the aqueous epoxy curing agent is aqueous modified aliphatic amine and/or aromatic amine and/or acid anhydride, the solid content is 35-55%, the aqueous epoxy curing agent is a combination of aqueous modified aliphatic amine and aqueous modified aromatic amine, the weight ratio of the two is 1:0.5-2, the emulsified asphalt is cationic emulsified asphalt with the solid content of 50-60%, the aqueous polyurethane emulsion is a combination of one or more of pure aqueous polyurethane nano emulsion, aqueous silicon-containing polyurethane nano emulsion, aqueous fluorine-containing polyurethane nano emulsion and aqueous polyurethane-acrylate copolymer nano emulsion, the solid content is 37-52%, the aqueous polyurethane emulsion is a combination of aqueous polyurethane nano emulsion and aqueous silicon-containing polyurethane nano emulsion, the weight ratio of the two is 10:7, the aqueous polyurethane emulsion is a combination of aqueous polyurethane nano emulsion, aqueous silicon-containing polyurethane nano emulsion and aqueous fluorine-containing polyurethane nano emulsion, the weight ratio of the three is 10:4:3, the graphene oxide is an aqueous solution with the concentration of 1-2 mg/m L, the mineral active silica ash particle size is less than 1-8 μm, and the ultrafine active coal ash is an ultrafine powder of 1-8.
The preparation method of the waterproof bonding layer material for bridge and tunnel pavements adopted in the embodiments 1 to 10 comprises the following steps:
the method comprises the following steps: under the condition of room temperature, uniformly mixing aqueous epoxy resin, emulsified asphalt, aqueous polyurethane emulsion, graphene oxide aqueous solution and mineral active ultrafine powder to form a component A; the waterborne epoxy resin curing agent is used as a component B;
step two: and (3) uniformly mixing the component A and the component B in a contact manner to obtain the water-based epoxy asphalt waterproof bonding layer material.
In the step one, the process of obtaining the component a can be performed according to the following steps: firstly, uniformly contacting and mixing the aqueous epoxy resin and the aqueous polyurethane emulsion to obtain a mixture 1, then sequentially adding the graphene oxide aqueous solution and the mineral activity ultrafine powder into the mixture 1, dispersing at a high speed for 2-3 min by using a high-speed dispersion machine under the condition of 3000-5000 rpm to obtain a mixture 2, and then uniformly contacting and mixing the mixture 2 with emulsified asphalt to obtain a component A.
In the method provided by the present invention, the method for uniformly mixing by contacting is not particularly limited as long as various materials can be sufficiently and uniformly mixed.
In the method provided by the invention, each operation step is carried out under the conditions of normal temperature and normal pressure.
The waterproof bonding layer material for bridge and tunnel pavements provided by the invention can be suitable for waterproof engineering of bridges, tunnels, pavements with large longitudinal slopes and common pavements with severe traffic conditions and the like.
The waterproof bonding layer material for bridge and tunnel pavements can be used according to the conventional pavement bonding layer material using method in the field.
Each of the raw materials mentioned in examples 1 to 10 is a commercially available product.
In examples 1 to 10, the mechanical property evaluation of the waterproof adhesive layer material for bridge and tunnel pavements was carried out according to the following method: the shear strength, the pull strength and the bonding strength of the waterproof bonding layer material are tested according to the method specified in JC/T975-.
Examples 1 to 10
The formulations of examples 1-10 are shown in Table 1.
TABLE 1
In examples 1-10, the specific selection of components is as follows:
the selection of the components in examples 1-5 is as follows: the water-based polyurethane emulsion (the weight ratio of the water-based polyurethane nano emulsion to the water-based silicon-containing polyurethane emulsion is 3:2), the water-based epoxy resin curing agent (the weight ratio of the water-based modified aliphatic amine to the water-based modified aromatic amine is 2:1), and the mineral active ultrafine powder (the weight ratio of the ultrafine fly ash to the silica fume is 4: 1).
In example 6, the aqueous polyurethane emulsion was composed of an aqueous polyurethane nanoemulsion and an aqueous fluorine-containing polyurethane emulsion at a weight ratio of 3: 1.
The aqueous polyurethane emulsion used in example 7 was an aqueous polyurethane-acrylate copolymer emulsion.
The waterborne epoxy resin curing agent used in example 8 was a waterborne modified aliphatic amine.
The aqueous epoxy resin curing agent used in example 9 was a water-based modified aromatic amine.
The mineral activated micropowder in example 10 consists of micropowder coal ash and silica fume in a weight ratio of 1: 1.
The following tests were conducted on the samples of the waterproof bonding layer materials for bridge and tunnel roads in examples 1 to 10, and the test results are shown in Table 2. As can be seen from Table 2, the samples of the waterproof bonding layer materials for bridge and tunnel roads in examples 1 to 10
TABLE 2
The bridge and tunnel pavement waterproof bonding layer materials prepared in the embodiments 1 to 10 are used as the waterproof bonding layer 1 to compound the bridge deck asphalt pavement layer 2 and the cement concrete bridge base layer 3 together.
The construction main process of the waterproof bonding layer material for the bridge and tunnel pavement comprises the following steps: the method comprises the steps of cement concrete panel pretreatment, spraying of waterproof bonding layer materials, curing of the waterproof bonding layer materials, asphalt concrete pavement and overall maintenance of the pavement.
The cement concrete panel pretreatment is to roughen the surface of the panel by adopting a full-automatic cleaning machine, clean impurities on the surface and improve the binding force between a waterproof binding layer material and the cement concrete panel.
The spraying of the waterproof bonding layer material refers to that the waterproof bonding layer material of the bridge and tunnel pavement prepared by the method is sprayed on the pretreated cement concrete panel by a spraying vehicle, and the spraying amount is 0.7-1 kg/m2Note thatThe longitudinal engagement is intended to overlap the sprinkled portion by 10 cm.
The maintenance of the waterproof bonding layer material refers to that after the waterproof bonding layer material is spread, the traffic is required to be sealed and dried under natural conditions, the maintenance is carried out until the material is not adhered to the wheels and the crawler of the paver, the maintenance time is about 2 days generally, and then the asphalt concrete material is spread.
Claims (10)
1. The waterproof bonding layer material for the bridge and tunnel pavement is characterized by comprising the following components in percentage by mass:
2. the bridge and tunnel waterproof bonding layer material of claim 1, wherein the solid mass content of the water-based epoxy resin is 42-57%.
3. The bridge and tunnel road waterproof bonding layer material of claim 1, wherein the mass content of the curing agent in the aqueous solution of the waterborne epoxy resin curing agent is 35-55%; the curing agent adopts at least one of aliphatic amine, aromatic amine and acid anhydride which are modified by hydration.
4. The bridge and tunnel road waterproof bonding layer material of claim 1, wherein the emulsified asphalt is cationic emulsified asphalt with a solid mass content of 50-60%.
5. The bridge and tunnel road waterproof bonding layer material of claim 1, wherein the aqueous polyurethane emulsion is any one or more of pure aqueous polyurethane nanoemulsion, aqueous silicon-containing polyurethane nanoemulsion, aqueous fluorine-containing polyurethane nanoemulsion and aqueous polyurethane-acrylate copolymerization nanoemulsion, and the solid mass content of the aqueous polyurethane emulsion is 37-52%.
6. The bridge and tunnel road waterproof bonding layer material of claim 1, wherein the graphene oxide is an aqueous solution with a concentration of 1-2 mg/m L.
7. The waterproof bonding layer material for bridges and tunnels as claimed in claim 1, wherein the mineral active ultrafine powder is ultrafine fly ash and/or silica fume, and the average particle size is less than 9 μm.
8. The method for preparing the waterproof bonding layer material for the bridge and tunnel pavement according to any one of claims 1 to 7, wherein the component A is formed by uniformly mixing aqueous epoxy resin, emulsified asphalt, aqueous polyurethane emulsion, graphene oxide and mineral active ultrafine powder at room temperature; aqueous solution of waterborne epoxy resin curing agent is used as a component B; and uniformly mixing the component A and the component B.
9. Use of the waterproof bonding layer material for bridge and tunnel roads of any one of claims 1-7 in road engineering.
10. Use according to claim 9, characterized in that the bridge and tunnel waterproof bonding layer material is used as a waterproof bonding layer (1) to compound a bridge deck asphalt pavement layer (2) and a cement concrete bridge base layer (3).
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112411302A (en) * | 2020-11-18 | 2021-02-26 | 西安公路研究院 | Impermeable composite material and preparation method thereof, impermeable pavement and construction method thereof |
| CN112709132A (en) * | 2020-12-31 | 2021-04-27 | 南通福伦利新材料有限公司 | Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface |
| CN113881341A (en) * | 2021-11-12 | 2022-01-04 | 郑州大学 | High-performance fog sealing layer material and application thereof |
| CN115030027A (en) * | 2022-07-20 | 2022-09-09 | 哈尔滨工业大学 | Environment-friendly bridge pavement structure suitable for low-temperature environment and construction method thereof |
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| JPS62141084A (en) * | 1985-12-13 | 1987-06-24 | Ibiden Co Ltd | Thermosetting adhesive |
| US4911983A (en) * | 1985-12-10 | 1990-03-27 | Ibiden Company, Ltd. | Adhesion structures and method of producing the same |
| CN105482676A (en) * | 2015-12-24 | 2016-04-13 | 太原市路邦科技有限公司 | Salt-storage epoxy/polyurethane composite coating material for highway and preparation method thereof |
| CN105925244A (en) * | 2016-07-11 | 2016-09-07 | 江苏燕宁新材料科技发展有限公司 | Water-based epoxy asphalt waterproof adhesive layer material and preparation method thereof |
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| CN112411302A (en) * | 2020-11-18 | 2021-02-26 | 西安公路研究院 | Impermeable composite material and preparation method thereof, impermeable pavement and construction method thereof |
| CN112411302B (en) * | 2020-11-18 | 2022-07-15 | 西安公路研究院 | Impermeable composite material and preparation method thereof, impermeable pavement and construction method thereof |
| CN112709132A (en) * | 2020-12-31 | 2021-04-27 | 南通福伦利新材料有限公司 | Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface |
| CN112709132B (en) * | 2020-12-31 | 2023-02-28 | 南通福伦利新材料有限公司 | Preparation and spraying method of normal-temperature asphalt stress absorption film for heavy corrosion prevention of steel bridge deck/steel base surface |
| CN113881341A (en) * | 2021-11-12 | 2022-01-04 | 郑州大学 | High-performance fog sealing layer material and application thereof |
| CN113881341B (en) * | 2021-11-12 | 2022-12-09 | 郑州大学 | High-performance fog sealing layer material and application thereof |
| CN115030027A (en) * | 2022-07-20 | 2022-09-09 | 哈尔滨工业大学 | Environment-friendly bridge pavement structure suitable for low-temperature environment and construction method thereof |
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Application publication date: 20200717 |