阅读说明：本技术 透水路面用高强增韧快速固化化学改性树脂沥青及其制备方法 (High-strength toughened fast-curing chemically modified resin asphalt for permeable pavement and preparation method thereof ) 是由 魏亚 封基良 孙武云 张林艳 于 2019-09-17 设计创作，主要内容包括：本发明公开了透水路面用高强增韧快速固化化学改性树脂沥青及其制备方法,该沥青由A、B、C三个组分组成,A组分为环氧树脂；B组分由道路石油沥青100份、天然橡胶3-20份和活性增容剂3-15份组成；C组分由固化剂100份和固化促进剂为0.5-2.5份组成；A组分与B组分的质量比为10-30:100,A组份与C组分固化剂的质量比为100:50-200；本发明树脂沥青,具有强度高、韧柔性好、固化速度快、使用寿命长、耐久性好等优点；A组分与B组分分开存储稳定性好,施工应用方便。本发明适用于各种路面作为透水抗滑表层的粘结料,既能起到提高路面抗滑性能、减少噪音、延长路面使用寿命等,又能起到建设海绵城市作用,应用前景广。(The invention discloses a high-strength toughened fast-cured chemically modified resin asphalt for permeable pavements and a preparation method thereof, wherein the asphalt consists of A, B, C three components, wherein the component A is epoxy resin; the component B consists of 100 parts of road petroleum asphalt, 3-20 parts of natural rubber and 3-15 parts of active compatibilizer; the component C consists of 100 parts of curing agent and 0.5-2.5 parts of curing accelerator; the mass ratio of the component A to the component B is 10-30:100, and the mass ratio of the component A to the component C is 100: 50-200; the resin asphalt has the advantages of high strength, good toughness and flexibility, high curing speed, long service life, good durability and the like; the component A and the component B are separated, and have good storage stability and convenient construction and application. The invention is suitable for various road surfaces as the binding material of the permeable antiskid surface layer, can improve the antiskid performance of the road surface, reduce noise, prolong the service life of the road surface and the like, can play a role in building sponge cities, and has wide application prospect.)

1. The high-strength toughened fast-curing chemically modified resin asphalt for the permeable pavement is characterized by comprising the following components in percentage by weight: the composition comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B is 10-30:100, and the mass ratio of the component A to the component C is 100: 50-200;

the component A is epoxy resin;

the component B comprises the following components in parts by mass:

road petroleum asphalt 100 parts

3-20 parts of natural rubber

3-15 parts of active compatibilizer

The component C comprises the following components in parts by mass:

100 portions of curing agent

0.5-2.5 parts of curing accelerator.

2. The high-strength toughening rapid curing chemical modified resin asphalt for the permeable pavement according to claim 1, which is characterized in that: the epoxy resin is bisphenol A type epoxy resin.

3. The high-strength toughening rapid curing chemical modified resin asphalt for the permeable pavement according to claim 1, which is characterized in that: the road petroleum asphalt is No. 70 or No. 90 or No. 110 road petroleum A-grade or B-grade common asphalt.

4. The high-strength toughening rapid curing chemical modified resin asphalt for the permeable pavement according to claim 1, which is characterized in that: the natural rubber is used as a toughening and softening agent and is milky white glue juice flowing out after rubber tapping of rubber trees or a product thereof.

5. The high-strength toughening rapid curing chemical modified resin asphalt for the permeable pavement according to claim 1, which is characterized in that: the active compatibilizer is one or a mixture of more of extract oil of a furfural section in petroleum refining, phenolic residue oil distilled by decomposition of cumene hydroperoxide, pine oil series rubber oil, coal tar series rubber oil, or paraffin base, naphthenic base or aromatic base and aromatic base modified petroleum series rubber oil.

6. The high-strength toughening rapid curing chemical modified resin asphalt for the permeable pavement according to claim 1, which is characterized in that: the curing agent is a high-molecular amine curing agent or an acid liver curing agent.

7. The high-strength toughening rapid curing chemical modified resin asphalt for the permeable pavement according to claim 1, which is characterized in that: the curing accelerator is benzyl dimethylamine or phenol or imidazole accelerator.

8. The preparation method of the high-strength toughening fast curing chemically modified resin asphalt for the permeable pavement according to any one of claims 1 to 7, which is characterized by comprising the following steps: the method comprises the following steps of adding an active compatibilizer into the petroleum asphalt for roads according to the mass part of the asphalt as claimed in claim 1, heating the mixture to 130 ℃ and 160 ℃, and uniformly stirring the mixture; uniformly stirring to obtain a mixture, which is called as the mixture 1 for short; gradually adding natural rubber into the mixture 1 after constant temperature, uniformly mixing by adopting a high-speed shearing or stirring mode to prepare a component B of the high-strength toughened and fast-cured chemically modified resin asphalt, and placing the component B into a drying oven at the temperature of 130-160 ℃ for later use; respectively mixing a curing agent and a curing accelerator according to the mass parts in the claim 1 at normal temperature, heating to 120-160 ℃, and uniformly stirring to obtain a component C of the high-strength toughened fast-curing chemically modified resin asphalt; the component A is epoxy resin, and is placed in an oven, and the temperature is raised to 60-80 ℃ for standby; uniformly mixing the component A, the component B and the component C according to the mass ratio of the component A, the component B and the component C in the claim 1 to obtain the high-strength toughened and rapidly-cured chemically-modified resin asphalt; A. b, C the components are physically mixed before mixing, the performance is improved and improved by blending, A, B, C three components are mixed, the curing agent and the epoxy resin are subjected to curing reaction to form an epoxy curing system which is a continuous phase, the curing agent and the epoxy resin are uniformly mixed outside to form a three-dimensional insoluble infusible thermosetting network structure of a filling phase, the material is subjected to phase transition, and the filling phase plays roles of increasing flexibility and toughening in the continuous phase; the added natural rubber material has good self-healing capability, the uniformly dispersed filaments can play a bridging role, the bonding force and the flexibility of the material are enhanced, the brittle fracture of the high-strength toughened and rapidly cured chemically modified resin asphalt is avoided, and the material performance is improved; the curing accelerator is added into the curing agent, so that the curing speed of the high-strength toughened and fast-curing chemically modified resin asphalt under medium and low temperature conditions can be improved, and the application range is widened.

Technical Field

The invention relates to the technical field of asphalt and preparation methods thereof, in particular to high-strength toughened and fast-cured chemically modified resin asphalt for a permeable pavement and a preparation method thereof.

Background

With the improvement of economic development and the requirements of driving safety and comfort, the requirements on road surface skid resistance and driving noise reduction are more and more urgent. The permeable pavement is used as a solution of a sponge city, has the effects of reducing noise, improving anti-skid performance, reducing water mist and water drift in rainy days and the like, and can greatly improve the driving safety. However, even when a high-viscosity physically modified asphalt is used, early diseases such as water damage and migration are prominent due to insufficient adhesion during use.

The epoxy asphalt is converted from thermoplastic to thermosetting after being cured, has the characteristics of irreversible curing reaction and high bonding strength, and after being doped into natural rubber, the natural rubber has excellent self-adhesive property, good dispersibility and processability, can avoid brittle failure through bridging effect and a three-dimensional filamentous structure, and obviously improves the flexibility of the epoxy material. The high-temperature, low-temperature, water stability and fatigue resistance of the mixed material are obviously improved, and the road surface material is a long-service-life road surface material and has good application prospect.

Disclosure of Invention

The invention aims to provide high-strength toughened fast-curing chemically modified resin asphalt for permeable pavements and a preparation method thereof, and the high-strength toughened fast-curing chemically modified resin asphalt has the advantages of high bonding strength, good flexibility, long service life and the like. The road surface water-permeable agent is suitable for water-permeable pavements such as large traffic and heavy traffic, plays roles in improving driving safety, reducing noise and the like, and has a wide application prospect.

The purpose of the invention is realized by the following technical scheme:

the high-strength toughened fast-curing chemically modified resin asphalt for the permeable pavement comprises a component A, a component B and a component C, wherein the mass ratio of the component A to the component B is 10-30:100, and the mass ratio of the component A to the component C is 100: 50-200;

the component A is epoxy resin;

the component B comprises the following components in parts by mass:

road petroleum asphalt 100 parts

3-20 parts of natural rubber

3-15 parts of active compatibilizer

The component C comprises the following components in parts by mass:

100 portions of curing agent

0.5-2.5 parts of curing accelerator

The epoxy resin is bisphenol A type epoxy resin.

The road petroleum asphalt is No. 70 or No. 90 or No. 110 road petroleum A-grade or B-grade common asphalt.

The natural rubber is used as a toughening and softening agent and is milky white glue juice flowing out after rubber tapping of rubber trees or a product thereof.

The active compatibilizer is one or a mixture of more of extract oil of a furfural section in petroleum refining, phenolic residue oil distilled by decomposition of cumene hydroperoxide, pine oil series rubber oil, coal tar series rubber oil, or paraffin base, naphthenic base or aromatic base and aromatic base modified petroleum series rubber oil.

The curing agent is a high-molecular amine curing agent or an acid liver curing agent.

The curing accelerator is benzyl dimethylamine or phenol or imidazole accelerator.

The preparation method of the high-strength toughened fast-curing chemically modified resin asphalt for the permeable pavement comprises the steps of adding an active compatibilizer into the road petroleum asphalt according to the mass parts, heating to 130-160 ℃, and uniformly stirring; uniformly stirring to obtain a mixture, which is called as the mixture 1 for short; gradually adding natural rubber into the mixture 1 after constant temperature, uniformly mixing by adopting a high-speed shearing or stirring mode to prepare a component B of the high-strength toughened and fast-cured chemically modified resin asphalt, and placing the component B into a drying oven at the temperature of 130-160 ℃ for later use; respectively mixing the curing agent and the curing accelerator according to the mass parts at normal temperature, heating to 120-160 ℃, and uniformly stirring to obtain a component C of the high-strength toughened fast-curing chemically modified resin asphalt; the component A is epoxy resin, and is placed in an oven, and the temperature is raised to 60-80 ℃ for standby; and uniformly mixing the component A, the component B and the component C according to the required mass percentage to obtain the high-strength toughened and rapidly-cured chemically-modified resin asphalt. A. B, C the components are physically mixed before mixing, the performance is improved and enhanced by blending, A, B, C three components are mixed, the curing agent and the epoxy resin are subjected to curing reaction to form an epoxy curing system which is a continuous phase, the curing agent and the epoxy resin are uniformly mixed outside to form a three-dimensional insoluble infusible thermosetting network structure of a filling phase, the material is subjected to phase transition, and the filling phase plays roles of increasing flexibility and toughening in the continuous phase. The added natural rubber material has good self-healing capability, the uniformly dispersed filaments can play a bridging role, the bonding force and the flexibility of the material are enhanced, the brittle fracture of the high-strength toughened and fast-curing chemically modified resin asphalt is avoided, and the material performance is improved. The curing accelerator is added into the curing agent, so that the curing speed of the high-strength toughened and rapidly cured chemically modified resin asphalt under medium and low temperature conditions can be improved, and the application range is widened.

Compared with the prior art, the invention has the following advantages:

the permeable pavement is a large-pore structure, the contact area of aggregate is small, the requirements on the adhesive strength and the adhesive property are high, in order to avoid early damage caused by insufficient strength due to incapability of quick curing after construction, the cementing material is required to be high in flexibility and strength and can be quickly cured, the hidden danger caused by overlong maintenance period after construction is reduced, the invention takes the natural rubber which is abundant in Yunnan as the main toughening and softening agent, the flexibility of the epoxy material is improved, the damage caused by brittle fracture of the epoxy asphalt can be avoided, after the curing accelerator is added, the curing speed of the epoxy asphalt material under the condition of medium and low temperature is also improved, and the application range and the limitation are smaller. The high-strength toughened fast-curing chemically modified resin asphalt prepared by the invention is applied to permeable pavements, can obviously reduce water mist and water drift generated during driving in rainy days, improves the anti-skid property and driving safety of the pavements, can be used as a binder of permeable mixtures for expressways and urban roads, and has wide application range.

Detailed Description

The present invention is further illustrated by the following specific examples, which are not intended to be limiting.