CN102757198A - Environment-friendly flaming retarding bituminous mixture and preparation method thereof - Google Patents
Environment-friendly flaming retarding bituminous mixture and preparation method thereof Download PDFInfo
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- CN102757198A CN102757198A CN2012102858925A CN201210285892A CN102757198A CN 102757198 A CN102757198 A CN 102757198A CN 2012102858925 A CN2012102858925 A CN 2012102858925A CN 201210285892 A CN201210285892 A CN 201210285892A CN 102757198 A CN102757198 A CN 102757198A
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- asphalt
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Abstract
The invention discloses an environment-friendly flaming retarding bituminous mixture and a preparation method thereof. The preparation method includes fully mixing 0.5%-1.5% of flame retardants and 98.5%-99.5% of the bituminous mixture under certain conditions to obtain the environment-friendly flaming retarding bituminous mixture. The preparation method is simple and good in compatibility and dispersibility; the mixture is non-toxic, pollution-free, free from generating toxic gases during the flaming retarding process and good in energy conservation and environmental protection performances; mechanical properties and weather abilities of the bituminous mixture are not reduced; and flaming retarding effects of the bituminous mixture are improved, prices are low, and production costs are reduced.
Description
Technical field
The present invention relates to the transport development field, relate in particular to a kind of environmental-protection flame-retardant asphalt and preparation method thereof.
Background technology
Bituminous pavement is all adopted on external most vcehicular tunnel road surface; And China ordinary highway tunnel is imported and exported in the certain limit and freeway tunnel, in order to improve the driving vision, improves traffic safety; Reduce noise; Generally also adopt bituminous pavement, particularly high performance asphalt, the 15.3rd regulation of " vcehicular tunnel design specifications " (JTG D70-2004): vcehicular tunnels at different levels can adopt bituminous concrete pavement; Can adopt good flame resistance in case of necessity, the oil mat structure of help throwing light on, reflective characteristic is good.The employing sliding resistance is good in the tunnel at present, noise is little, the comfortable flame-retardant pitch paving of driving progressively becomes the main flow of mating formation.
With resin and rubber is the pitch of matrix, has certain combustibility, is to cause leading cause of fire when occurrence of traffic accident, can stop polymer materials to ignite or suppresses the additive that flame disseminates and fire retardant is one type.Using of flame-retardant pitch will have realistic meaning for rescue client's life and protection national wealth as striving for the valuable rescue time after the bituminous pavement presence of fire.
The fire retardant that is used for matrix material should possess following performance: 1. flame retarding efficiency is high, can give good self-extinguishing of matrix material or flame retardancy; 2. have good mutual capacitive, can well melt mutually with matrix material and be prone to and disperse; 3. have suitable decomposition temperature, promptly under the processing temperature of matrix material, do not decompose, but when the matrix material decomposes, can decompose rapidly again to bring into play fire-retardant effect; 4. nontoxic or low toxicity, odorless, do not pollute, in fire-retardant process, do not produce toxic gas; 5. with matrix material and time spent, do not reduce mechanical property, weathering resistance and the heat-drawn wire etc. of matrix material; 6. good endurance can be retained in the goods of matrix material for a long time, brings into play its fire retardation.
Prior art all is to adopt fire retardant is added in the pitch, through special process, is processed into flame-retardant pitch; Its one side, complete processing is complicated, improves its manufacturing cost; On the other hand, the fire retardant proportion of employing is greater than bituminous proportion, and both blendings are poor; Be easy to generate segregation, influence the effect of flame-retardant pitch.And the Chinese invention patent of publication number 1580129 discloses a kind of " Fire-retardant modified asphaltum mixture ", and its halogenated fire-retardants that adopts is a kind of highly toxic substance, and some fields are disabled or limit the use of in the world, can cause bigger destruction to environment.
Therefore, prior art awaits to improve and development.
Summary of the invention
Deficiency in view of above-mentioned prior art the object of the present invention is to provide a kind of environmental-protection flame-retardant asphalt and preparation method thereof, improves the bituminous flame retarding efficiency, improves its dispersing property, and it is more even that fire retardant is mixed with pitch.
Technical scheme of the present invention is following:
A kind of environmental-protection flame-retardant asphalt, it comprises following component:
Fire retardant 0.5%～1.5%
Asphalt 98.5%～99.5%.
Described environmental-protection flame-retardant asphalt, wherein, said fire retardant comprises following component:
Inorganic combustion inhibitor 50%～90%
Zinc borate 8%～50%
Zeyssatite 1%～10%
Surface-modifying agent 0.1%～0.3%.
Described environmental-protection flame-retardant asphalt, wherein, said inorganic combustion inhibitor is flame retardant of magnesium hydroxide or aluminium hydroxide fire retardant, said surface-modifying agent is titanate ester or silicane.
Described environmental-protection flame-retardant asphalt, wherein, said asphalt comprises following component:
Pitch or modifying asphalt 3.5%～8%
Gather materials 80%～90%
Breeze 5%～15%.
A kind of method for preparing the environmental-protection flame-retardant asphalt, it may further comprise the steps:
Fully mix under A, fire retardant and 140 ℃ of-190 ℃ of conditions of asphalt of 98.5%～99.5% and obtain the environmental-protection flame-retardant asphalt 0.5%～1.5%.
Described preparation method, wherein, what said steps A was concrete comprises:
A1, the inorganic combustion inhibitor with 50%～90%, 8%～50% zinc borate and 1%～10% zeyssatite join in the reaction kettle, evenly stir 5-15 minute;
A2, again 0.3% surface-modifying agent is sprayed in the reaction kettle, be heated to 50 ℃～80 ℃, stirred 30～50 minutes, stop heating, obtain said fire retardant after the cooling.
Described preparation method, wherein, what said steps A was concrete comprises: A3, the pitch with 3.5%～8% or modifying asphalt, 80%～90% gather materials and breeze thorough mixing under 140 ℃ of-190 ℃ of conditions of 3%～15%, obtain said asphalt.
Described preparation method, wherein, said inorganic combustion inhibitor is flame retardant of magnesium hydroxide or aluminium hydroxide fire retardant, surface-modifying agent is titanate ester or silicane.
Beneficial effect: a kind of environmental-protection flame-retardant asphalt provided by the invention and preparation method thereof, its compound method is simple, has good blending with dispersed; It is nontoxic, do not pollute, and in fire-retardant process, does not produce toxic gas, has good energy-conserving and environment-protective performance; And can not reduce the mechanical property and the weathering resistance of asphalt; Improved the flame retardant effect of asphalt, cheap, reduced its manufacturing cost.
Description of drawings
Fig. 1 is the schematic flow sheet of preparation fire retardant among the present invention.
Embodiment
The invention provides a kind of environmental-protection flame-retardant asphalt and preparation method thereof, clearer, clear and definite for making the object of the invention, technical scheme and effect, below to further explain of the present invention.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The invention provides a kind of environmental-protection flame-retardant asphalt, it comprises following component:
Fire retardant 0.5%～1.5%
Asphalt 98.5%～99.5%.
In another preferred embodiment of the present invention, said fire retardant comprises following component: 50%～90% inorganic combustion inhibitor, 8%～50% zinc borate, 1%～10% zeyssatite and 0.1%～0.3% surface-modifying agent.
Further, said asphalt comprises following component: 3.5%～8% pitch or modifying asphalt, 80%～90% gather materials and 5%～15% breeze.
And said inorganic combustion inhibitor can adopt flame retardant of magnesium hydroxide or aluminium hydroxide fire retardant, and said surface-modifying agent can adopt titanate ester or silicane.Obvious, said inorganic combustion inhibitor and said surface-modifying agent also can adopt other suitable chemical substances.
The present invention also provides a kind of method for preparing the environmental-protection flame-retardant asphalt, and it may further comprise the steps:
Thorough mixing under 140 ℃ of-190 ℃ of conditions of inorganic combustion inhibitor with 0.5%～1.5% and 98.5%～99.5% asphalt obtains the environmental-protection flame-retardant asphalt.Soon 0.5%～1.5% fire retardant is pressed the need addition content in the asphalt, and equivalent substitution part breeze joins in the breeze, is prepared into breeze fire retardant compound;
With the breeze consumption of breeze fire retardant compound by the Bitumen Mix Design requirement, be spiked into asphalt, thorough mixing under 140 ℃ of-190 ℃ of conditions is prepared into the environmental-protection flame-retardant asphalt.
The present invention prepares concrete the comprising of said fire retardant method:
Step 101: the inorganic combustion inhibitor with 50%～90%, 8%～50% zinc borate and 1%～10% zeyssatite join in the reaction kettle, evenly stir 5-15 minute;
Step 102: again 0.1%～0.3% surface-modifying agent is sprayed in the reaction kettle, be heated to 50 ℃～80 ℃, stirred 30～50 minutes, stop heating, obtain said fire retardant after the cooling.
In another preferred embodiment of the present invention, pitch with 3.5%～8% or modifying asphalt, 80%～90% gather materials and breeze thorough mixing under 140 ℃ of-190 ℃ of conditions of 5%～15%, obtain said asphalt.
And said inorganic combustion inhibitor is flame retardant of magnesium hydroxide or aluminium hydroxide fire retardant, and surface-modifying agent is titanate ester or silicane.
For the technical scheme of the present invention of description further, below enumerate concrete embodiment.
Embodiment 1
Marinco H, 26g zinc borate, the 5.7g zeyssatite of 71g were evenly stirred 15 minutes, and then add the surface-modifying agent of 0.3g, be heated to 80 ℃, stirred 45 minutes, the sealing of cooling back obtains said fire retardant.
The fire retardant of 103g is mixed stirring with the breeze of 897g, process breeze fire retardant compound.
With gathering materials and the fire-retardant compound of the breeze of 1000g thorough mixing under 160 ℃ of conditions of the modifying asphalt of 589g, 8500g, obtain the environmental-protection flame-retardant asphalt.As shown in table 1, be asphalt mineral aggregate gradation reckoner of the present invention.
Table 1
Best bitumen aggregate ratio is 6.2, is the SBS modifying asphalt.
Embodiment 2
Marinco H, 39kg zinc borate, the 8.3kg zeyssatite of 103kg were evenly stirred 15 minutes, and then add the surface-modifying agent of 0.3kg, heat 80 ℃, stirred 45 minutes, the sealing of cooling back obtains said fire retardant.
The fire retardant of 150kg is mixed stirring with the breeze of 1350kg, process breeze fire retardant compound.
The breeze fire retardant compound that gathers materials with 1500kg of the modifying asphalt of 600kg, 9000kg is being obtained said asphalt behind the thorough mixing under 160 ℃ of conditions.
As shown in table 2, be asphalt mineral aggregate gradation reckoner of the present invention.
Table 2
Best bitumen aggregate ratio is 5.7, is the SBS modifying asphalt.
For more detailed description the present invention, existing performance with embodiment 1, embodiment 2 and plain asphalt compound is tested, and its test result is as shown in table 3.
Table 3
| Test subject | Embodiment 1 | Embodiment 2 | The plain asphalt compound |
| Dynamic stability (inferior/mm) | 6148 | 5481 | ?5723 |
| Low-temperature bending breaking strain (μ ε) | 4215 | 4326 | 3865 |
| Immersion residual stability (%) | 94.3 | 95.2 | 92.6 |
| Freeze thawing splitting retained strength is than (%) | 92.1 | 86.7 | 91 |
| Infiltration coefficient (mL/min) | 0 | 0 | 0 |
| Pitch leakage analysis losing △ m (%) | 0.07 | 0.06 | 0.05 |
| Asphalt disperses and loses △ S (%) | 4.8 | 4.2 | 5.2 |
| Oxygen index | 26 | 26 | 20 |
Should be understood that application of the present invention is not limited to above-mentioned giving an example, concerning those of ordinary skills, can improve or conversion that all these improvement and conversion all should belong to the protection domain of accompanying claims of the present invention according to above-mentioned explanation.
Claims (8)
1. environmental-protection flame-retardant asphalt, it comprises following component:
Fire retardant 0.5%～1.5%
Asphalt 98.5%～99.5%.
2. environmental-protection flame-retardant asphalt according to claim 1 is characterized in that, said fire retardant comprises following component:
Inorganic combustion inhibitor 50%～90%
Zinc borate 8%～50%
Zeyssatite 1%～10%
Surface-modifying agent 0.1%～0.3%.
3. environmental-protection flame-retardant asphalt according to claim 2 is characterized in that, said fire retardant is flame retardant of magnesium hydroxide or aluminium hydroxide fire retardant, and surface-modifying agent is titanate ester or silicane.
4. environmental-protection flame-retardant asphalt according to claim 1 is characterized in that, said asphalt comprises following component:
Pitch or modifying asphalt 3.5%～8%
Gather materials 80%～90%
Breeze 5%～15%.
5. method for preparing the environmental-protection flame-retardant asphalt, it may further comprise the steps:
Fully mix under A, fire retardant and 140 ℃ of-190 ℃ of conditions of asphalt of 98.5%～99.5% and obtain the environmental-protection flame-retardant asphalt 0.5%～1.5%.
6. preparation method according to claim 5 is characterized in that, what said steps A was concrete comprises:
A1, the inorganic combustion inhibitor with 50%～90%, 8%～50% zinc borate and 1%～10% zeyssatite join in the reaction kettle, evenly stir 5-15 minute;
A2, again 0.3% surface-modifying agent is sprayed in the reaction kettle, be heated to 50 ℃～80 ℃, stirred 30～50 minutes, stop heating, obtain said fire retardant after the cooling.
7. preparation method according to claim 5; It is characterized in that; What said steps A was concrete comprises: A3, the pitch with 3.5%～8% or modifying asphalt, 80%～90% gather materials and breeze thorough mixing under 140 ℃-190 ℃ condition of 5%～15%, obtain said asphalt after the cooling.
8. preparation method according to claim 6 is characterized in that, said inorganic combustion inhibitor is flame retardant of magnesium hydroxide or aluminium hydroxide fire retardant, and surface-modifying agent is titanate ester or silicane.
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| CN2012102858925A CN102757198A (en) | 2012-08-13 | 2012-08-13 | Environment-friendly flaming retarding bituminous mixture and preparation method thereof |
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| CN2012102858925A CN102757198A (en) | 2012-08-13 | 2012-08-13 | Environment-friendly flaming retarding bituminous mixture and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554931A (en) * | 2013-10-17 | 2014-02-05 | 王朝辉 | Modified asphalt with hot-mix emission reduction and flame-retardant smoke suppression functions |
| CN104844073A (en) * | 2015-04-27 | 2015-08-19 | 苏州科技学院 | Water-blown warm-mix flame-retardant asphalt mixture, and preparation and design method thereof |
| CN108329703A (en) * | 2018-02-06 | 2018-07-27 | 郑州大学 | A kind of smoke-inhibiting type asphalt flame-retardant agent and preparation method thereof |
| CN114477835A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Anti-flying powder, anti-flying flame-retardant asphalt mixture and preparation method thereof |
| CN114685849A (en) * | 2020-12-30 | 2022-07-01 | 江苏苏博特新材料股份有限公司 | Asphalt flame retardant, flame-retardant modified asphalt thereof and flame-retardant modified asphalt mixture |
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| CN1580129A (en) * | 2003-08-06 | 2005-02-16 | 深圳市海川实业股份有限公司 | Flame-retared modified asphalt mixed stock |
| US20050261407A1 (en) * | 2004-05-21 | 2005-11-24 | Building Materials Investment Corporation | White reflective coating for modified bitumen membrane |
| CN1935903A (en) * | 2005-09-22 | 2007-03-28 | 深圳市海川实业股份有限公司 | Halogen-free roadfire-resistant asphalt |
| CN101037314A (en) * | 2007-04-20 | 2007-09-19 | 东南大学 | Road surface material mixed with inorganic flaming-resistant agent and asphalt-mastic-broken stone |
| CN101173105A (en) * | 2007-10-19 | 2008-05-07 | 武汉理工大学 | Flame-proof filling material special for tunnel sheet pavement |
| CN102153874A (en) * | 2011-05-16 | 2011-08-17 | 山东交通学院 | Composite modified asphalt and preparation method thereof |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1580129A (en) * | 2003-08-06 | 2005-02-16 | 深圳市海川实业股份有限公司 | Flame-retared modified asphalt mixed stock |
| US20050261407A1 (en) * | 2004-05-21 | 2005-11-24 | Building Materials Investment Corporation | White reflective coating for modified bitumen membrane |
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| CN101173105A (en) * | 2007-10-19 | 2008-05-07 | 武汉理工大学 | Flame-proof filling material special for tunnel sheet pavement |
| CN102153874A (en) * | 2011-05-16 | 2011-08-17 | 山东交通学院 | Composite modified asphalt and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554931A (en) * | 2013-10-17 | 2014-02-05 | 王朝辉 | Modified asphalt with hot-mix emission reduction and flame-retardant smoke suppression functions |
| CN103554931B (en) * | 2013-10-17 | 2016-04-27 | 王朝辉 | A kind of have the modifying asphalt that heat mixes reduction of discharging and flame-retardant smoke inhibition effect |
| CN104844073A (en) * | 2015-04-27 | 2015-08-19 | 苏州科技学院 | Water-blown warm-mix flame-retardant asphalt mixture, and preparation and design method thereof |
| CN108329703A (en) * | 2018-02-06 | 2018-07-27 | 郑州大学 | A kind of smoke-inhibiting type asphalt flame-retardant agent and preparation method thereof |
| CN114477835A (en) * | 2020-10-27 | 2022-05-13 | 中国石油化工股份有限公司 | Anti-flying powder, anti-flying flame-retardant asphalt mixture and preparation method thereof |
| CN114477835B (en) * | 2020-10-27 | 2023-01-10 | 中国石油化工股份有限公司 | Anti-scattering agent, anti-scattering flame-retardant asphalt mixture and preparation method thereof |
| CN114685849A (en) * | 2020-12-30 | 2022-07-01 | 江苏苏博特新材料股份有限公司 | Asphalt flame retardant, flame-retardant modified asphalt thereof and flame-retardant modified asphalt mixture |
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