CN109181330B - Asphalt flame retardant for roads and preparation method and application thereof - Google Patents
Asphalt flame retardant for roads and preparation method and application thereof Download PDFInfo
- Publication number
- CN109181330B CN109181330B CN201811171569.9A CN201811171569A CN109181330B CN 109181330 B CN109181330 B CN 109181330B CN 201811171569 A CN201811171569 A CN 201811171569A CN 109181330 B CN109181330 B CN 109181330B
- Authority
- CN
- China
- Prior art keywords
- flame retardant
- asphalt
- parts
- roads
- construction waste
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to an asphalt flame retardant for roads and a preparation method and application thereof. The asphalt flame retardant for the road comprises the following components in parts by weight: 40-60 parts of inorganic flame retardant, 7-10 parts of phenolic resin, 5-10 parts of fiber, 25-40 parts of nitrogen flame retardant and 1-3 parts of silane coupling agent. The asphalt flame retardant for the road is simple in preparation process, environment-friendly and excellent in compatibility with asphalt.
Description
Technical Field
The invention relates to an asphalt flame retardant for roads and a preparation method and application thereof.
Background
The asphalt mixture is one of the most common road paving materials because of its characteristics of damping, comfort, easy maintenance, etc. Asphalt as residue after petroleum distillation has certain flammability, which often causes fire when traffic accidents occur, and is accompanied by the phenomenon of asphalt pavement ignition caused by high temperature, thus not only causing environmental pollution, but also increasing the difficulty of disaster relief and emergency rescue.
In order to avoid the above phenomenon, a flame retardant is often added to asphalt to improve the flame retardant property of the asphalt. The currently commonly used asphalt flame retardant is that a certain amount of organic phosphorus flame retardant and nitrogen flame retardant are added into asphalt. The manufacturing cost of the two components is high, and the organic components in the organic phosphorus system are decomposed to generate harmful gas in the high-temperature storage process, so that the flame retardant effect of the asphalt is influenced, the environment is harmed, and the environment-friendly requirement is not met; secondly, the asphalt mixed with the flame retardant is easy to have the phenomena of layering and segregation and the like, so that the stability of the asphalt is reduced.
Disclosure of Invention
The invention provides an asphalt flame retardant for roads, a preparation method and application thereof, the preparation process is simple, the environment is protected, the compatibility with asphalt is excellent, and the problems in the prior art are solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the asphalt flame retardant for the road comprises the following components in parts by weight: 40-60 parts of inorganic flame retardant, 7-10 parts of phenolic resin, 5-10 parts of fiber, 25-40 parts of nitrogen flame retardant and 1-3 parts of silane coupling agent.
The inorganic flame retardant is a construction waste with the particle size larger than 300 meshes, and the construction waste is a construction waste containing calcium hydroxide, alumina gel, ettringite and calcium silicate hydrate.
The mass fraction of the calcium hydroxide in the construction waste is 15-20%, and the mass fraction of the aluminum gel is 5-30%.
The fiber is basalt fiber; the nitrogen flame retardant is ammonium polyphosphate and melamine; the silane coupling agent is KH550 or KH 570.
The ammonium polyphosphate is ammonium polyphosphate with the polymerization degree n being more than 500; the weight ratio of the ammonium polyphosphate to the melamine is 4:1-9: 1.
The preparation method of the asphalt flame retardant for the road comprises the following operation steps:
putting the inorganic flame retardant, the phenolic resin, the fiber, the nitrogen flame retardant and the silane coupling agent into a ball mill according to the weight parts, grinding until the particle size of the material is more than 200 meshes, heating to 80-140 ℃, and preserving heat for 20-30min to obtain the flame-retardant phenolic resin.
The asphalt flame retardant for the road is applied to the asphalt for the road, and the mass fraction of the asphalt flame retardant for the road added in the asphalt for the road is 18%.
The invention has the beneficial effects that:
the preparation process of the asphalt flame retardant for the road is simple, environment-friendly and excellent in compatibility with asphalt, the construction waste is used for replacing an organic phosphorus flame retardant, and effective flame retardants such as aluminum glue, calcium hydroxide and the like in the construction waste can be decomposed and absorb a large amount of heat in a high-temperature environment, so that the temperature of an asphalt mixture is reduced; the calcium hydroxide and the aluminum glue in the finely ground construction waste are used as flame retardants, so that the production cost of enterprises can be reduced, and the profits of the enterprises can be improved; in addition, the use of the construction waste can realize the environmental protection of the product and the maximization of the benefit, and the safety of the road asphalt is improved while the waste resources are fully and comprehensively utilized; the basalt fiber component in the invention is matched with other components, so that the flame retardant asphalt mixture has flame retardant property, and can simultaneously perform a reinforcement effect on the asphalt mixture, thereby improving the road performance of the asphalt mixture; in addition, the silane coupling agent in the flame retardant can enhance the bonding performance of the asphalt and the flame retardant, effectively avoids the phenomena of segregation, delamination and the like of the flame retardant in the asphalt, and ensures the stability of the asphalt material. The components of the invention are scientifically and reasonably matched, and the asphalt flame retardant for the road, which has stable performance and effective flame retardance, is obtained on the basis of effectively saving cost and comprehensively utilizing wastes through the cooperation of the components.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments.
The asphalt used in the embodiment of the invention is 70# matrix asphalt; the asphalt limit oxygen index is measured according to the asphalt combustion performance measurement-oxygen index method. In the aspect of the storage stability test of the asphalt, the asphalt mixed with the flame retardant is placed into a stability test tube and placed in an oven at 163 ℃ for 5 hours, the upper layer asphalt and the lower layer asphalt are respectively taken to test the softening point, the penetration degree and the ductility of the asphalt, and the tests of the softening point, the penetration degree and the ductility of the asphalt are carried out according to the test regulations of the asphalt and the asphalt mixture for road engineering.
Example 1
The asphalt flame retardant for the road is prepared from the following raw materials in parts by mass:
60 parts of 350-mesh inorganic flame retardant, 9 parts of phenolic resin, 5 parts of basalt fiber, 25 parts of nitrogen flame retardant and 1 part of silane coupling agent KH 570; wherein the inorganic flame retardant comprises 15% by mass of calcium hydroxide and 20% by mass of alumina gel; the nitrogen flame retardant comprises 20 parts of ammonium polyphosphate and 5 parts of melamine;
the raw materials are put into a ball mill for grinding until the particle size of the materials is 300 meshes, then the materials are heated to 140 ℃, and the temperature is kept for 30min to obtain the asphalt flame retardant. Adding the asphalt flame retardant into the matrix asphalt, wherein the adding amount is 18%, and after uniformly stirring, testing the storage stability, softening point, penetration degree, ductility and limited oxygen index of the asphalt.
Example 2
The asphalt flame retardant for the road is prepared from the following raw materials in parts by mass:
40 parts of 400-mesh inorganic flame retardant, 7 parts of phenolic resin, 10 parts of basalt fiber, 40 parts of nitrogen flame retardant and 3 parts of silane coupling agent KH 550; wherein the inorganic flame retardant comprises 20% of calcium hydroxide by mass and 30% of alumina gel by mass; the nitrogen flame retardant comprises 36 parts of ammonium polyphosphate and 4 parts of melamine;
the raw materials are put into a ball mill for grinding until the particle size of the materials is 260 meshes, then the materials are heated to 80 ℃, and the temperature is kept for 20min to obtain the asphalt flame retardant. Adding the asphalt flame retardant into the matrix asphalt, wherein the adding amount is 18%, and after uniformly stirring, testing the storage stability, softening point, penetration degree, ductility and limited oxygen index of the asphalt.
Example 3
The asphalt flame retardant for the road is prepared from the following raw materials in parts by mass:
50 parts of 380-mesh inorganic flame retardant, 10 parts of phenolic resin, 8 parts of basalt fiber, 30 parts of nitrogen flame retardant, 1 part of silane coupling agent KH550 and 1 part of silane coupling agent KH 570; wherein the inorganic flame retardant comprises 18% of calcium hydroxide by mass and 15% of alumina gel by mass; the nitrogen flame retardant comprises 26 parts of ammonium polyphosphate and 4 parts of melamine;
the raw materials are put into a ball mill for grinding until the particle size of the materials is 350 meshes, then the materials are heated to 110 ℃, and the temperature is kept for 25min to obtain the asphalt flame retardant. Adding the asphalt flame retardant into the matrix asphalt, wherein the adding amount is 18%, and after uniformly stirring, testing the storage stability, softening point, penetration degree, ductility and limited oxygen index of the asphalt.
Table 1: asphalt Performance test results with addition of flame retardants of examples 1 to 3
As can be seen from Table 1, the softening point penetration degree and ductility of the upper layer asphalt and the lower layer asphalt which are added with 18 percent of the asphalt flame retardant meet the requirements of the specification and are similar, and the asphalt flame retardant shows good stability; secondly, the combustion performance exceeds the standards for flame-retardant asphalt mixes. Wherein the blank set is the property of the No. 70 base asphalt.
The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.
The present invention is not described in detail, but is known to those skilled in the art.
Claims (5)
1. An asphalt fire retardant for roads is characterized in that: the composition comprises the following components in parts by weight: 40-60 parts of inorganic flame retardant, 7-10 parts of phenolic resin, 5-10 parts of fiber, 25-40 parts of nitrogen flame retardant and 1-3 parts of silane coupling agent;
the inorganic flame retardant is a construction waste with the particle size of more than 300 meshes, and the construction waste is a construction waste containing calcium hydroxide, alumina gel, ettringite and calcium silicate hydrate;
the nitrogen flame retardant is ammonium polyphosphate and melamine, wherein the ammonium polyphosphate is ammonium polyphosphate with the polymerization degree n being more than 500; the weight ratio of ammonium polyphosphate to melamine is 4:1-9: 1.
2. the asphalt flame retardant for roads according to claim 1, wherein: the mass fraction of the calcium hydroxide in the construction waste is 15-20%, and the mass fraction of the aluminum gel is 5-30%.
3. The asphalt flame retardant for roads according to claim 1, wherein: the fiber is basalt fiber; the silane coupling agent is KH550 or KH 570.
4. A method for producing the asphalt flame retardant for roads according to any one of claims 1 to 3, characterized in that: the method comprises the following operation steps:
putting the inorganic flame retardant, the phenolic resin, the fiber, the nitrogen flame retardant and the silane coupling agent into a ball mill according to the weight parts, grinding until the particle size of the material is more than 200 meshes, heating to 80-140 ℃, and preserving heat for 20-30min to obtain the flame-retardant phenolic resin.
5. Use of the asphalt flame retardant for roads according to any one of claims 1 to 3 in asphalt for roads, characterized in that: the mass fraction of the road asphalt flame retardant added in the road asphalt is 18%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171569.9A CN109181330B (en) | 2018-10-09 | 2018-10-09 | Asphalt flame retardant for roads and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811171569.9A CN109181330B (en) | 2018-10-09 | 2018-10-09 | Asphalt flame retardant for roads and preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109181330A CN109181330A (en) | 2019-01-11 |
| CN109181330B true CN109181330B (en) | 2021-04-27 |
Family
ID=64947326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811171569.9A Active CN109181330B (en) | 2018-10-09 | 2018-10-09 | Asphalt flame retardant for roads and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109181330B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659381A (en) * | 1986-03-28 | 1987-04-21 | Manville Corporation | Flame retarded asphalt blend composition |
| CN101624474A (en) * | 2009-08-04 | 2010-01-13 | 重庆中交科技股份有限公司 | Halogen-free environmental protection flame-retardant asphalt for tunnel road surface |
| CN101880408A (en) * | 2010-06-25 | 2010-11-10 | 北京盛大华源科技有限公司 | Flame retardant and preparation method thereof |
| CN102311648A (en) * | 2010-07-02 | 2012-01-11 | 黄长健 | Environmental-protection asphalt antiflaming smoke suppression modifier |
| CN102953511A (en) * | 2012-11-12 | 2013-03-06 | 苏州金螳螂建筑装饰股份有限公司 | Anti-flaming wooden decoration panel |
| CN104609888A (en) * | 2015-01-27 | 2015-05-13 | 中云河北发泡陶瓷科技有限公司 | Production process of foamed ceramics |
| CN104710803A (en) * | 2015-03-16 | 2015-06-17 | 山西省交通科学研究院 | Asphalt fire retardant for tunnel pavement |
| CN106497099A (en) * | 2016-10-21 | 2017-03-15 | 吴迪 | A kind of preparation method of Colophonium with green non-poisonous fire retardant |
| CN108250778A (en) * | 2018-01-15 | 2018-07-06 | 长安大学 | The compound fire retardant stage by stage of tunnel sheet pavement environmental protection and preparation method and application |
-
2018
- 2018-10-09 CN CN201811171569.9A patent/CN109181330B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659381A (en) * | 1986-03-28 | 1987-04-21 | Manville Corporation | Flame retarded asphalt blend composition |
| CN101624474A (en) * | 2009-08-04 | 2010-01-13 | 重庆中交科技股份有限公司 | Halogen-free environmental protection flame-retardant asphalt for tunnel road surface |
| CN101880408A (en) * | 2010-06-25 | 2010-11-10 | 北京盛大华源科技有限公司 | Flame retardant and preparation method thereof |
| CN102311648A (en) * | 2010-07-02 | 2012-01-11 | 黄长健 | Environmental-protection asphalt antiflaming smoke suppression modifier |
| CN102953511A (en) * | 2012-11-12 | 2013-03-06 | 苏州金螳螂建筑装饰股份有限公司 | Anti-flaming wooden decoration panel |
| CN104609888A (en) * | 2015-01-27 | 2015-05-13 | 中云河北发泡陶瓷科技有限公司 | Production process of foamed ceramics |
| CN104710803A (en) * | 2015-03-16 | 2015-06-17 | 山西省交通科学研究院 | Asphalt fire retardant for tunnel pavement |
| CN106497099A (en) * | 2016-10-21 | 2017-03-15 | 吴迪 | A kind of preparation method of Colophonium with green non-poisonous fire retardant |
| CN108250778A (en) * | 2018-01-15 | 2018-07-06 | 长安大学 | The compound fire retardant stage by stage of tunnel sheet pavement environmental protection and preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109181330A (en) | 2019-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100535056C (en) | Flame-proof filling material special for tunnel sheet pavement | |
| CN112961528A (en) | Environment-friendly fireproof coating and preparation method thereof | |
| CN100535055C (en) | Fire-retardant modified asphalt material and preparing method | |
| CN102604396B (en) | Synergic flame retardance asphalt material and preparation method thereof | |
| CN105254206B (en) | A kind of asphalt flame-retardant agent, its preparation method and application | |
| Wang et al. | Double-layered co-microencapsulated ammonium polyphosphate and mesoporous MCM-41 in intumescent flame-retardant natural rubber composites | |
| CN105384387A (en) | Composite flame retardant and preparation method and application thereof | |
| CN109293281B (en) | Modified asphalt mixture and preparation method thereof | |
| KR101546506B1 (en) | Recycled Cold Asphalt Concrete Mixture | |
| CN111187560B (en) | Ultrahigh-voltage flame-retardant insulating powder for outdoor busbar and preparation method thereof | |
| CN109504232A (en) | A kind of epoxy intumescent fire retardant paint enhanced by a variety of carbon-based materials | |
| CN103044937A (en) | Flame-retardant smoke-suspension asphalt for environment-friendly road and preparation method of asphalt | |
| CN116004082A (en) | Light solvent-free epoxy intumescent fire retardant coating for automobile power battery packs and energy storage equipment and preparation method thereof | |
| CN106904929A (en) | A kind of non-ignitable granules of polystyrene warming plate preparation method of A grades of fire prevention | |
| CN100419026C (en) | Fire-retardant and modified asphalt mixture | |
| CN109181330B (en) | Asphalt flame retardant for roads and preparation method and application thereof | |
| CN100424134C (en) | Flame-retared modified asphalt mixed stock | |
| CN102757198A (en) | Environment-friendly flaming retarding bituminous mixture and preparation method thereof | |
| CN105131619A (en) | Inorganic flame retardant modified asphalt and preparation process thereof | |
| CN111995296A (en) | Self-compacting asphalt mixture and preparation method thereof | |
| Ren et al. | Microcapsule preparation of melamine and orange peel charcoal encapsulated by sodium alginate and its effect on combustion performance of epoxy resins | |
| CN111117269A (en) | Efficient asphalt flame retardant and preparation method thereof | |
| CN103253884A (en) | Composite fire retardant for bituminous mixture | |
| CN110128838B (en) | Flame-retardant smoke-inhibiting modified emulsified asphalt and preparation method and application thereof | |
| CN102849989A (en) | Hot-mixed and hot-paved modified asphalt mixture with reduced emission and preparation method of asphalt mixture |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210401 Address after: No. 1239 Siping Road, Yangpu District, Shanghai, 2003 Applicant after: TONGJI University Applicant after: SHANDONG EXPRESSWAY NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 250002 Shandong High Speed Engineering Technology Center, 12550 East Second Ring Road, Jinan City, Shandong Province Applicant before: SHANDONG EXPRESSWAY NEW MATERIAL TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |