CN110950579B - Flexible splicing material and preparation method thereof - Google Patents
Flexible splicing material and preparation method thereof Download PDFInfo
- Publication number
- CN110950579B CN110950579B CN201911283673.1A CN201911283673A CN110950579B CN 110950579 B CN110950579 B CN 110950579B CN 201911283673 A CN201911283673 A CN 201911283673A CN 110950579 B CN110950579 B CN 110950579B
- Authority
- CN
- China
- Prior art keywords
- asphalt
- flexible
- parts
- splicing material
- elasticity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/50—Flexible or elastic materials
- C04B2111/503—Elastic materials
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a flexible splicing material and a preparation method thereof, wherein the flexible splicing material comprises high-elasticity flexible asphalt, graded aggregate and rubber particles, and the mass ratio of the high-elasticity flexible asphalt to the graded aggregate to the rubber particles is 30-40: 100: 10-15; the high-elasticity flexible asphalt comprises the following components in parts by weight: 100 parts of matrix asphalt, 15-25 parts of nano-scale rubber powder, 2-5 parts of an activating agent, 1-2.5 parts of an epoxy adhesive, 0.5-1.2 parts of polyvinyl alcohol fiber and 6-10 parts of a composite synergist. The aggregate is basalt with high proportion and large particle size, the formed gap is filled with large oilstone-high elastic flexible asphalt, and the void ratio is close to zero, so that the flexible splicing material has good deformation performance, can bear +/-3.5 cm of telescopic deformation, and reduces the occurrence probability of the reflection cracks of the pavement structure; on the other hand, the high-temperature stability of the flexible splicing material is ensured, and the dynamic stability reaches 3500 times/mm, so that the flexible splicing material has good road performance.
Description
Technical Field
The invention relates to the technical field of road engineering, in particular to a paving material for tunnel and concrete bridge deck and a preparation method thereof.
Background
The reflection cracks above the deformation joints of the tunnel and the concrete bridge are main defect types of bridge and tunnel pavement, and have important influence on the durability of a pavement structure. At present, a common modified asphalt mixture and a resin-based mixture are mainly adopted as filling materials in a reflection crack repairing mode, although the problem of cracks of a bridge and tunnel pavement structure is relieved to a certain extent, the filling materials are poor in deformation resistance and capable of bearing the maximum deformation of +/-2.5 cm, and deformation requirements are difficult to meet at deformation joints of an inlet and an outlet of a tunnel and structural settlement joints inside the tunnel, so that secondary crack diseases are easy to occur after the filling materials are applied for a period of time, and the durability of the filling materials is insufficient.
The invention ZL201510977281.0 provides a resin-based expansion joint filling material; the invention ZL201310219802.7 provides a modified asphalt expansion joint filling material, which mainly resists the expansion deformation of a lower concrete plate paved by the filling material, but has poor self-deformation capability and insufficient material durability.
In view of the defects of the existing concrete bridge and tunnel pavement, the inventor of the invention actively researches and innovates based on the practical experience and professional knowledge which are abundant for many years in the design and manufacture of the products and the application of the theory, so as to create a flexible splicing material and a preparation method thereof, and the flexible splicing material has higher practicability. After continuous research and design and repeated trial production and improvement, the invention with practical value is finally created.
Disclosure of Invention
The invention mainly aims to overcome the defects of the existing concrete bridge and tunnel pavement, and provides a flexible splicing material and a preparation method thereof, which improve the durability of a pavement structure, are more practical and have industrial utilization value.
The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme.
The flexible splicing material comprises high-elasticity flexible asphalt, graded aggregate and rubber particles, wherein the mass ratio of the high-elasticity flexible asphalt to the graded aggregate to the rubber particles is 30-40: 100: 10-15; when the proportion of the high-elasticity flexible asphalt is higher than 40, the excessive free high-elasticity flexible asphalt mucilage on the surface of the aggregate can be caused, the acting force among graded aggregates is reduced, and the integral strength of the mixture is reduced; when the proportion of the high-elasticity flexible asphalt is lower than 30, an oil film on the surface of the aggregate becomes thin, so that the flexible splicing material becomes brittle, the deformation capability is poor, and cracking is easy to generate.
The high-elasticity flexible asphalt comprises the following components in parts by weight:
100 parts of matrix asphalt;
15-25 parts of nano-scale rubber powder: when the using amount of the rubber powder is more than 25 parts, the rubber is oxidized and broken chains to form more COOH and C ═ O groups under the high-temperature condition, and simultaneously, the volatilization of saturated components and the dehydration of aromatic components in the asphalt are caused, so that the compatibility of the rubber powder and the matrix asphalt is reduced; when the using amount of the rubber powder is less than 15 parts, the compatibility of the matrix asphalt and the rubber powder is insufficient, the partial chain segment of the rubber molecule and the asphaltene micelle are not uniformly distributed, the flexible splicing asphalt cement is unstable, and a compatible system which is easy to separate is generated.
2-5 parts of an activating agent: when the using amount of the activating agent is more than 5 parts, the rubber powder is excessively cracked; when the amount is less than 2 parts, the surface of the rubber powder is insufficiently activated, and the surface reactivity and polarity of the rubber powder are reduced.
1-2.5 parts of epoxy adhesive: when the using amount of the epoxy adhesive is more than 2.5 parts, the epoxy groups are increased, the thermoplastic asphalt is converted into a thermosetting body, and the elasticity of the flexible splicing material adhesive is reduced.
0.5-1.2 parts of polyvinyl alcohol fiber: when the dosage of the polyvinyl alcohol fiber is more than 1.2 parts, the cementing material of the flexible splicing material obviously has hardening phenomenon, and the toughness of the material is reduced.
6-10 parts of a composite synergist: when the amount of the composite synergist is more than 10 parts, the asphalt becomes brittle by the organic wax component, and further the low-temperature bending damage resistance of the flexible splicing material is reduced.
The preferred flexible splicing material is one in which the matrix asphalt is 70#～110#A base asphalt.
The optimized flexible splicing material has the particle size of the nano-scale rubber powder of 80-250 nm, the rubber powder within the particle size range can increase the contact specific surface area and compatibility with the matrix asphalt, the content of rubber hydrocarbon is not less than 65%, the content of ash is not more than 5%, the purity of the rubber powder is ensured, and the influence of other impurities such as ash on the performance of the flexible splicing material is reduced. By using the superfine rubber powder, the specific surface area of the rubber powder can be increased, the action areas of free radicals on the surface of the rubber powder and carboxylic acid and other functional groups in the matrix asphalt are increased, the compatibility of the rubber powder and the asphalt is enhanced, and a foundation is laid for improving the integral deformation resistance of the material.
According to the preferable flexible splicing material, the activating agent is selected from at least one of sodium hypochlorite, chlorous acid, dichromic acid and waste engine oil, the content of available chlorine is not less than 7%, the melting point of the activating agent is not less than 210 ℃, the heating decrement is not more than 0.5%, and the phenomenon that the oxidation of the rubber powder is reduced due to the reaction of the sodium hypochlorite and impurities such as metal ions in the air can be avoided.
Because the activating agent is a strong oxidizing agent, active groups such as methylene, double bonds and the like on the surface of the activating agent are oxidized into hydroxyl, aldehyde and shuttle groups, the surface of the rubber powder is activated, the surface of the rubber powder is fluffy and has a flocculent structure, the contact area between the surface of the rubber powder and the matrix asphalt is further increased, the light oil in the asphalt can be favorably penetrated into the rubber powder, the modification effect of the rubber powder on the matrix asphalt is fully exerted, and the reactivity and the polarity of the surface of the rubber powder are increased.
According to the preferable flexible splicing material, the gelation time of the epoxy adhesive is not less than 25min, the compatibility time with asphalt is ensured, the tensile strength is not less than 18MPa, and the elongation at 20 ℃ is not less than 50%. The epoxy resin adhesive enables the rubber powder to have good pressure sensitivity and hot solubility on one hand, and on the other hand, the epoxy resin adhesive has a C chain compatible with asphalt saturated components and a small amount of benzene rings compatible with asphalt aromatic components, namely the epoxy resin adhesive further promotes the rubber powder and the matrix asphalt to be better compatible.
The preferable flexible splicing material has the length of the polyvinyl alcohol fiber of 15 +/-0.5 mm and the dry elongation at break of not less than 10 percent, and further enhances the cracking resistance of the flexible splicing material.
The preferable flexible splicing material has the composite synergist with the Brookfield viscosity of not less than 4200 MPa-s at 150 ℃ and the melting point of not less than 140 ℃, and the elastic recovery capability of the flexible splicing material is improved by the high-viscosity composite synergist. The composite synergist contains 10000-15000 high-molecular long-chain polyolefin, and can effectively adjust the components and molecular weight distribution of the matrix asphalt, namely when the temperature rises, the long-chain polyolefin in the composite synergist adsorbs saturated components with similar structures to the long-chain polyolefin in the composite synergist to swell and dissolve to form a stable solution without segregation, so that the asphalt melting is accelerated, and the kinematic viscosity of the asphalt is reduced; when the temperature is reduced, the composite synergist forms a reticular crystal structure in the asphalt, so that the stability of the asphalt is improved, and the composite synergistic effect is achieved.
The optimized flexible splicing material has the graded aggregate being basalt broken stone, the crushing value being not more than 25%, the needle flake content being not more than 15%, the maximum grain size being 19mm, and the aggregate grading range: the passing rate of 16mm sieve meshes is 75-80%, the passing rate of 13.2mm sieve meshes is 42-50%, and the passing rate of 9.5mm sieve meshes is 10-15%.
A preparation method of a flexible splicing material comprises the following steps:
s1, weighing each component material of the high-elasticity flexible asphalt according to the weight proportion;
s2, heating the substrate asphalt to 180 ℃, then sending the substrate asphalt into a reaction kettle, feeding the nano-scale rubber powder, an activating agent, an epoxy adhesive, polyvinyl alcohol fibers and a composite synergist into the reaction kettle through a material lifting machine, stirring and mixing the mixture with the substrate asphalt at a high temperature for 30min, and shearing and dispersing the mixture through a modified colloid mill to obtain high-elasticity flexible asphalt;
s3, weighing the high-elasticity flexible asphalt, the aggregate gradation and the rubber particles according to the weight proportion;
s4, preparing graded aggregate according to the mixing proportion, preheating to 170-190 ℃, adding into mixing equipment, and mixing for 20-30 s;
s5, weighing the rubber particles according to the mass ratio, adding the rubber particles into S4 mixing equipment, and mixing for 10-20S;
s6, heating the high-elastic flexible asphalt at 180-190 ℃ for 3-6 h, adding the high-elastic flexible asphalt into an S4 mixing device, and mixing for 60-100S to obtain the flexible splicing material.
The flexible splicing material mixture prepared by the preparation method of the flexible splicing material is preferably adopted, the dynamic stability at 60 ℃ is not less than 3000 times/mm, the low-temperature bending failure strain is not less than 10000 mu xi, and the void ratio of the mixture is not more than 0.5%.
In conclusion, the invention has the following beneficial effects:
(1) the flexible splicing material adopts high-elasticity flexible asphalt as a flexible splicing material cementing material, and is mainly characterized in that additives such as superfine nanoscale rubber powder, an activating agent, an epoxy adhesive, polyvinyl alcohol fibers, a composite synergist and the like are added into matrix asphalt to soften and toughen the matrix asphalt, the activating agent increases the compatibility of the rubber powder and the matrix asphalt, the epoxy adhesive further modifies the rubber asphalt, and the polyvinyl alcohol fibers and the composite synergist respectively improve the deformation resistance, the high temperature stability, the low temperature stability and the water stability of a flexible splicing material mixture.
(2) According to the flexible splicing material, the aggregate is basalt with high proportion and large particle size, the formed gaps are filled with large oilstone-high elastic flexible asphalt, and the void ratio is almost zero, so that the flexible splicing material has good deformation performance, can bear +/-3.5 cm of telescopic deformation, and reduces the occurrence probability of reflection cracks of a pavement structure; on the other hand, the high-temperature stability of the flexible splicing material is ensured, and the dynamic stability reaches 3500 times/mm, so that the flexible splicing material has good road performance.
Detailed Description
In order to make the objects, the preparation method and the advantages of the present invention clearer, the present invention will be further described in detail with reference to the following examples.
The raw materials adopted by the invention are as follows:
matrix asphalt: 70# of Jiangsu Zhongyi passway New Material Co Ltd
Nano-level rubber powder: suzhou Runjie environmental protection New Material Co., Ltd
Activating agent: sodium hypochlorite, Zhang Jia Kong Yidelong International trade Co., Ltd
Epoxy adhesive: glycidyl ester type epoxy resin, ME310, Shanghai shouxing industries Ltd
Polyvinyl alcohol fibers: polyvinyl alcohol, Changzhou Tianyi engineering fibers Co., Ltd
Compound synergist: science and technology development Co Ltd of Jiangsu Zhonglu New Material
Aggregate: jiangsu Maodi group Co., Ltd
Rubber particles: suzhou Runjie environmental protection New Material Co., Ltd
Example 1
The flexible splicing material is prepared by the following steps:
s1, weighing according to the following weight ratio: 70#100 parts of matrix asphalt, 15 parts of nano-scale rubber powder, 2 parts of activating agent, 1.5 parts of epoxy adhesive, 1 part of polyvinyl alcohol fiber and 6 parts of composite synergistAnd (4) portions are obtained.
S2, heating the matrix asphalt to 180 ℃, feeding the matrix asphalt into a reaction kettle, feeding the nano-scale rubber powder, an activating agent, an epoxy adhesive, polyvinyl alcohol fibers and a composite synergist into the reaction kettle, stirring and mixing the nano-scale rubber powder, the activating agent, the epoxy adhesive, the polyvinyl alcohol fibers and the composite synergist with the matrix asphalt at a high temperature for 30min, and shearing and dispersing the mixture by a modified colloid mill to prepare high-elasticity flexible asphalt;
s3, weighing according to the following weight ratio: 30 parts of high-elasticity flexible asphalt prepared by S2, 100 parts of graded aggregate and 10 parts of rubber particles.
Wherein, the passing rate of 19mm sieve holes of the graded aggregate is 100 percent, the passing rate of 16mm sieve holes is 75 percent, the passing rate of 13.2mm sieve holes is 42 percent, and the passing rate of 9.5mm sieve holes is 10 percent.
S4, heating the graded aggregate to 170-190 ℃, adding the heated graded aggregate into mixing equipment, and mixing for 20-30 s;
s5, adding the rubber particles into an S4 mixing device, and mixing for 10-20S;
s6, heating the high-elasticity flexible asphalt at 190 ℃ for 5h, adding the high-elasticity flexible asphalt into an S4 mixing device, and mixing for 100S to obtain the flexible splicing material.
Example 2
The flexible splicing material is prepared by the following steps:
s1, weighing according to the following weight ratio: 70#100 parts of matrix asphalt, 20 parts of nano-scale rubber powder, 3 parts of an activating agent, 2 parts of an epoxy adhesive, 1.2 parts of polyvinyl alcohol fiber and 8 parts of a composite synergist.
S2, heating the substrate asphalt to 180 ℃, feeding the substrate asphalt into a reaction kettle, feeding the nano-scale rubber powder, a vulcanizing agent, an epoxy adhesive, polyvinyl alcohol fibers and a composite synergist into the reaction kettle, stirring and mixing the nano-scale rubber powder, the vulcanizing agent, the epoxy adhesive, the polyvinyl alcohol fibers and the composite synergist with the substrate asphalt at a high temperature for 30min, and shearing and dispersing the mixture by a modified colloid mill to prepare high-elasticity flexible asphalt;
s3, weighing according to the following weight ratio: 35 parts of high-elasticity flexible asphalt prepared by S2, 100 parts of graded aggregate and 13 parts of rubber particles.
Wherein, the passing rate of 19mm sieve holes of the graded aggregate is 100 percent, the passing rate of 16mm sieve holes is 75 percent, the passing rate of 13.2mm sieve holes is 45 percent, and the passing rate of 9.5mm sieve holes is 12 percent.
S4, heating the graded aggregate to 170-190 ℃, adding the heated graded aggregate into mixing equipment, and mixing for 20-30 s;
s5, adding the rubber particles into an S4 mixing device, and mixing for 10-20S;
s6, heating the high-elasticity flexible asphalt at 190 ℃ for 5h, adding the high-elasticity flexible asphalt into an S4 mixing device, and mixing for 100S to obtain the flexible splicing material.
Example 3
The flexible splicing material is prepared by the following steps:
s1, weighing according to the following weight ratio: 70#100 parts of matrix asphalt, 25 parts of nano-scale rubber powder, 5 parts of an activating agent, 2.5 parts of an epoxy adhesive, 1.2 parts of polyvinyl alcohol fiber and 10 parts of a composite synergist.
S2, heating the substrate asphalt to 180 ℃, feeding the substrate asphalt into a reaction kettle, feeding the nano-scale rubber powder, a vulcanizing agent, an epoxy adhesive, polyvinyl alcohol fibers and a composite synergist into the reaction kettle, stirring and mixing the nano-scale rubber powder, the vulcanizing agent, the epoxy adhesive, the polyvinyl alcohol fibers and the composite synergist with the substrate asphalt at a high temperature for 30min, and shearing and dispersing the mixture by a modified colloid mill to prepare high-elasticity flexible asphalt;
s3, weighing according to the following weight ratio: 40 parts of high-elasticity flexible asphalt prepared by S2, 100 parts of graded aggregate and 15 parts of rubber particles.
Wherein, the passing rate of 19mm sieve holes of the graded aggregate is 100 percent, the passing rate of 16mm sieve holes is 80 percent, the passing rate of 13.2mm sieve holes is 50 percent, and the passing rate of 9.5mm sieve holes is 15 percent.
S4, heating the graded aggregate to 170-190 ℃, adding the heated graded aggregate into mixing equipment, and mixing for 20-30 s;
s5, adding the rubber particles into an S4 mixing device, and mixing for 10-20S;
s6, heating the high-elasticity flexible asphalt at 190 ℃ for 5h, adding the high-elasticity flexible asphalt into an S4 mixing device, and mixing for 100S to obtain the flexible splicing material.
And (3) performance verification:
the dynamic stability of the structure is tested according to T0719-2011 and the low-temperature bending failure strain of the structure is tested according to T0715-2011 by referring to road engineering asphalt and asphalt mixture test procedures provided in the embodiments 1-3; meanwhile, the deformation amount which can be adapted by the structure is tested by referring to the Texas mat tester test invented by the Texas State traffic science research institute (TTI) in the United states. Test data are recorded to table 1.
TABLE 1 structural Properties
| Degree of dynamic stability (times/mm) | Breaking strain (mu epsilon) | Deflection (cm) | |
| Example 1 | 6143 | 66826 | ±3.48 |
| Example 2 | 6268 | 59077 | ±3.36 |
| Example 3 | 6194 | 65710 | ±3.41 |
The experimental data show that the splicing material prepared by the method has stronger deformation resistance which is far higher than +/-2.5 cm and better durability.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (6)
1. A flexible splicing material is characterized in that: the asphalt comprises high-elasticity flexible asphalt, graded aggregate and rubber particles, wherein the mass ratio of the high-elasticity flexible asphalt to the graded aggregate to the rubber particles is 30-40: 100: 10-15;
the high-elasticity flexible asphalt comprises the following components in parts by weight:
100 portions of base asphalt
15-25 parts of nano-scale rubber powder
2-5 parts of activating agent
1-2.5 parts of epoxy adhesive
0.5-1.2 parts of polyvinyl alcohol fiber
6-10 parts of a composite synergist; the activating agent is at least one of sodium hypochlorite, chlorous acid, dichromic acid or waste engine oil; the effective chlorine content of the activating agent is not less than 7 percent; the gel time of the epoxy adhesive is not less than 25min, the tensile strength is not less than 18MPa, and the elongation at 20 ℃ is not less than 50%; the brookfield viscosity of the composite synergist is not less than 4200MPa & s at 150 ℃, and the melting point is not less than 140 ℃; the composite synergist contains 10000-15000 high-molecular long-chain polyolefin;
the aggregate grading range is as follows: the passing rate of the sieve with the size of 19mm is 100 percent, the passing rate of the sieve with the size of 16mm is 75 to 80 percent, the passing rate of the sieve with the size of 13.2mm is 42 to 50 percent, and the passing rate of the sieve with the size of 9.5mm is 10 to 15 percent.
2. The flexible splice material of claim 1 wherein: the particle size of the nano-scale rubber powder is 80-250 nm.
3. The flexible splicing material of claim 1, wherein: the length of the polyvinyl alcohol fiber is 15 +/-0.5 mm, and the dry breaking elongation is not less than 10%.
4. The flexible splicing material of claim 1, wherein: the graded aggregate is basalt broken stone, the crushing value is not more than 25%, and the needle sheet content is not more than 15%.
5. The preparation method of the flexible splicing material according to any one of claims 1 to 4, characterized by comprising the following steps:
s1, weighing each component material of the high-elasticity flexible asphalt according to parts by weight;
s2, heating the substrate asphalt, then sending the heated substrate asphalt into a reaction kettle, adding other component materials of the high-elasticity flexible asphalt, stirring and mixing the components at a high temperature in the reaction kettle, and shearing and dispersing the components by a modified colloid mill to obtain the high-elasticity flexible asphalt;
s3, respectively weighing high-elasticity flexible asphalt, aggregate and rubber particles according to the mass ratio;
s4, preparing graded aggregate according to a mixing proportion, preheating to 170-190 ℃, adding into mixing equipment, and mixing for 20-30 s;
s5, weighing rubber particles according to the mass ratio, adding the rubber particles into an S4 mixing device, and mixing for 10-20S;
s6, heating the high-elasticity flexible asphalt prepared by the step S2 at 180-190 ℃, adding the high-elasticity flexible asphalt into a stirring device S4, and stirring to obtain the flexible splicing material.
6. The preparation method of the flexible splicing material according to claim 5, wherein the prepared mixture of the flexible splicing material has a dynamic stability at 60 ℃ of not less than 3000 times/mm, a low-temperature bending failure strain of not less than 10000 μ ξ, and a mixture void ratio of not more than 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911283673.1A CN110950579B (en) | 2019-12-13 | 2019-12-13 | Flexible splicing material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911283673.1A CN110950579B (en) | 2019-12-13 | 2019-12-13 | Flexible splicing material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110950579A CN110950579A (en) | 2020-04-03 |
| CN110950579B true CN110950579B (en) | 2022-04-15 |
Family
ID=69981644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911283673.1A Active CN110950579B (en) | 2019-12-13 | 2019-12-13 | Flexible splicing material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110950579B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629405A (en) * | 2009-07-24 | 2010-01-20 | 武汉理工大学 | Waterproof bond stress absorbing bridge deck pavement material preparation method |
| CN101870818A (en) * | 2010-07-15 | 2010-10-27 | 上海道柯特沥青科技有限公司 | Durable rubber asphalt and preparation method thereof |
| CN102718438A (en) * | 2012-04-30 | 2012-10-10 | 武汉理工大学 | Bridge floor seamless expansion joint material with large expansion amount and preparation method thereof |
| CN103145882A (en) * | 2013-03-13 | 2013-06-12 | 南开大学 | Surface oxidation modification process for waste tire rubber powder for modification of asphalt |
| CN103288385A (en) * | 2013-06-04 | 2013-09-11 | 重庆佳厚建筑材料有限公司 | Expansion joint material for bridge and expansion joint structure |
| CN104018424A (en) * | 2014-05-10 | 2014-09-03 | 浙江大学宁波理工学院 | Bridge expansion joint repairing method |
| CN108659555A (en) * | 2018-05-09 | 2018-10-16 | 廖福润 | A kind of high-viscosity high-elasticity asphalt and preparation method thereof for expansion joints without seals |
-
2019
- 2019-12-13 CN CN201911283673.1A patent/CN110950579B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629405A (en) * | 2009-07-24 | 2010-01-20 | 武汉理工大学 | Waterproof bond stress absorbing bridge deck pavement material preparation method |
| CN101870818A (en) * | 2010-07-15 | 2010-10-27 | 上海道柯特沥青科技有限公司 | Durable rubber asphalt and preparation method thereof |
| CN102718438A (en) * | 2012-04-30 | 2012-10-10 | 武汉理工大学 | Bridge floor seamless expansion joint material with large expansion amount and preparation method thereof |
| CN103145882A (en) * | 2013-03-13 | 2013-06-12 | 南开大学 | Surface oxidation modification process for waste tire rubber powder for modification of asphalt |
| CN103288385A (en) * | 2013-06-04 | 2013-09-11 | 重庆佳厚建筑材料有限公司 | Expansion joint material for bridge and expansion joint structure |
| CN104018424A (en) * | 2014-05-10 | 2014-09-03 | 浙江大学宁波理工学院 | Bridge expansion joint repairing method |
| CN108659555A (en) * | 2018-05-09 | 2018-10-16 | 廖福润 | A kind of high-viscosity high-elasticity asphalt and preparation method thereof for expansion joints without seals |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110950579A (en) | 2020-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109722046B (en) | Colored emulsified asphalt, preparation method thereof and colored micro-surfacing | |
| US20080271639A1 (en) | Addition of spent activated carbon to asphalt compositions and to coking units as feedstock or quencher | |
| CN102173663A (en) | Waterborne epoxy modified emulsified asphalt concrete for steel bridge surface and preparation method thereof | |
| Fang et al. | Performance of single-component epoxy resin for crack repair of asphalt pavement | |
| Babagoli | Laboratory investigation of the performance of binders and asphalt mixtures modified by carbon nano tube, poly phosphoric acid, and styrene butadiene rubber | |
| CN109135309B (en) | Durable auxiliary agent for enhancing ageing resistance of asphalt | |
| CN115011131A (en) | Low-temperature anti-cracking asphalt mixture and preparation method thereof | |
| WO2019214097A1 (en) | Low-temperature environmental-friendly high-rubber asphalt having high performance and production process therefor | |
| CN112430012A (en) | Basalt composite fiber and asphalt mixture containing basalt composite fiber | |
| CN110950579B (en) | Flexible splicing material and preparation method thereof | |
| CN113235351B (en) | Airport pavement structure with asphalt layer paved on old cement airport runway and paving method thereof | |
| CN108640499A (en) | A kind of preparation method and device of basalt fibre particle | |
| CN104212189B (en) | The preparation method of PUR viscosity modified road pitch | |
| CN111747687A (en) | Repair type high-speed pavement asphalt mixture and preparation method thereof | |
| CN105541181A (en) | Rubber powder pavement material and construction method thereof | |
| CN112280323A (en) | Preparation method of asphalt regenerant with large-proportion RAP mixing amount | |
| CN114015356B (en) | Nano-cellulose modified SBR emulsified asphalt fog sealing material and preparation method and application thereof | |
| CN116789393A (en) | Emulsifier type cold-mixing and cold-paving asphalt mixture and preparation method thereof | |
| CN114426416B (en) | Reactive quick-setting asphalt pavement cold repair material capable of being stored for long time and preparation method thereof | |
| CN110272230B (en) | High-performance slurry seal asphalt mixture and preparation method thereof | |
| CN104194359B (en) | A kind of PUR viscosity modified road pitch | |
| CN113185847A (en) | Environment-friendly economical asphalt composition and application thereof | |
| CN115057657B (en) | Ultrathin wearing layer paving method based on high-viscosity emulsified asphalt | |
| CN115043613B (en) | Fiber rib-geopolymer emulsified asphalt pavement pit repairing material and preparation method thereof | |
| CN118255542A (en) | Asphalt mixture water stabilizer and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |