CN101077932B - Flame-proof asphalt for road and preparation method thereof - Google Patents
Flame-proof asphalt for road and preparation method thereof Download PDFInfo
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- CN101077932B CN101077932B CN2006100821422A CN200610082142A CN101077932B CN 101077932 B CN101077932 B CN 101077932B CN 2006100821422 A CN2006100821422 A CN 2006100821422A CN 200610082142 A CN200610082142 A CN 200610082142A CN 101077932 B CN101077932 B CN 101077932B
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Abstract
The present invention discloses one kind of fire retardant road asphalt, which consists of AH-90 or AH-130 heavy traffic road petroleum asphalt 70-85 weight portions, decabromodiphenylethane 3-6 weight portions, zinc borate 3-8 weight portions, antimony trioxide 3-8 weight portions, modifier 0.5-1.5 weight portions and magnesium hydroxide up to 11 weight portions. The present invention also discloses the preparation process of the fire retardant road asphalt. The fire retardant road asphalt has relatively high oxygen index, capacity of forming HBr with gaseous shielding fire retarding effect and capacity of forming stable charring layer and self extinguishing to eliminate combustion, and wide application foreground.
Description
[technical field]
The present invention relates to a kind of pitch, in particular, what the present invention relates to is a kind of road fire-resistant asphalt.
[background technology]
Pitch is the finished product of refining of petroleum, is the cheapness of architectural extensive employing and abundant material of construction, is used for waterproof, protection against the tide, anticorrosion, antirust, antiseep etc.Its some performance be synthetic rubber, synthetic resins can not compare.But pitch has easy burning, burning to produce the characteristics of a large amount of black smokes, the molten drop that is heated, trickling, has very big fire hazard, and it is used and also is subjected to certain restriction.For this reason, the difficult burning research of bituminous has very big realistic meaning.
Along with the raising that road user road pavement ride quality requires, bituminous concrete pavement smooth, wear-resisting, low noise may replace cement concrete pavement, and becomes the development main flow of tunnel road surface gradually.And according to report both domestic and external as can be known: in the use on medium pitch road surface, tunnel, the fire that traffic accident causes is a problem that must be noted that in the tunnel road surface use.After in the tunnel traffic accident taking place, cause that the road surface catches fire, because of the intensity of a fire develops swift and violent, personnel have little time to evacuate and cause bigger loss of life and personal injury, the country and people's lives and properties are caused unnecessary loss. in addition, produce a large amount of black smokes when pitch catches fire, again environment has been caused severe contamination.
The difficult burning technology of bituminous is the hot issue of the Insurance of various countries' fire-fighting circle in recent years institute common concern., mainly be to be used for aspects such as flame-retardant textile, building malthoid, fire-retardant building materials, the used clothes of firemen abroad, be applied to fire-retardant still not the seeing of bitumen for road use the research of fire retardant material.Domestic research to flame-retardant pitch mainly is to be used to build malthoid, is used for road and does not still see.
[summary of the invention]
The present invention is that oxygen index, smoke density and the flue gas grade when a kind of the burning is provided meets the road fire-resistant asphalt of country for the relevant regulations of fire retardant material.Another object of the present invention provides the preparation method of above-mentioned road fire-resistant asphalt.
A kind of road fire-resistant asphalt comprises by weight: 70 parts～85 parts of heavy traffic paving asphalts; 3 parts～6 parts in decabromodiphenyl ethane; 3 parts～8 parts of zinc borates; 3 parts～8 parts of antimonous oxides; 0.5 part～1.5 parts of properties-correcting agent.
Above-mentioned road fire-resistant asphalt can also add magnesium hydroxide, and maximum adding quantity is 11 parts.
Heavy traffic paving asphalt in the above-mentioned road fire-resistant asphalt component is AH-90 or AH-130, uses AH-90 can prepare the flame-retardant pitch that meets the AH-70 standard, uses AH-130 can prepare the flame-retardant pitch that meets the AH-90 standard.
In the above-mentioned road fire-resistant asphalt component, TDE, zinc borate and antimonous oxide are the fire retardants with synergistic effect, and zinc borate also has smoke suppressing effect; Magnesium hydroxide then is an anti-flaming smoke-inhibiting agent; Properties-correcting agent is selected styrene-butadiene rubber(SBR) for use, and it improves the temperature-sensitive performance of flame-retardant pitch.
The preparation method of above-mentioned road fire-resistant asphalt comprises the steps:
1) fusion heavy traffic paving asphalt: make the heavy traffic paving asphalt of certainweight remain on 80 ℃, reach molten state;
2) add additive: in molten asphalt, add TDE, antimonous oxide, zinc borate according to quantity, can also add magnesium hydroxide, and stir while adding, make each component mix;
3) add properties-correcting agent: Yi Bian add properties-correcting agent, use high-speed shearing machine at 1000r/min down cut 10min on one side, make the properties-correcting agent swelling, continue high speed shear 30min under 3000～4000r/min again, properties-correcting agent is tapered under shearing action, finally be uniformly distributed in the pitch with fine particle, shearing starting temperature is 120 ℃～130 ℃, in shear history, and the intensification that flame-retardant pitch can be gradually, intensification can not surpass 170 ℃, obtains road fire-resistant asphalt at last.
Flame-retardant pitch of the present invention has higher oxygen index, when burning, can generate HBr, SbBr on the one hand
3Deng, have the flame retardant effect that gas phase shields; Can promote the formation of carbide on the other hand, thereby form stable carburization zone, make fire end, produce from putting out phenomenon at burning surface.If the presence of fire of flame-retardant pitch road surface, loss of life and personal injury and property damage all can be less, flame-retardant pitch has more wide application prospect and favorable social and economic benefits.The flame-retardant pitch preparation method is simple, effectively, and economy, and easy to use, widely applicable.
[embodiment]
Fire retardant is by physics or chemical action, at flame zone with coagulate phase region combustion processes is disturbed, to realize reducing combustionvelocity, reaches fire-retardant purpose.It generally is to reach fire-retardant purpose by following one or more approach: endothermic effect, covering blanketing effect, trans effect, retarding effect, synergistic effect.The fire retardant mechanism of fire retardant is summarised as: trap heat mechanism, gas phase fire retardant mechanism, coagulation phase fire retardant mechanism.
The fire retardant mechanism of decabromodiphenyl ethane is: on the one hand because decomposes has produced hydrogen halide, the very big radical HO of activity that has produced when having caught pitch burning cracking has cut off the chain reaction of radical HO, and asphalt fuel combustion speed is reduced greatly; On the other hand because the promotor that this fire retardant is a carbide to be generated, when add a certain amount of after, the formation speed of carbide is greater than the carbide dropleting speed, thereby formed stable charring layer at burning surface, produces from putting out phenomenon, makes fire end; The fire retardant mechanism of antimonous oxide is: Sb
2O
3They can react and generate SbBr under comparatively high temps with TDE
3The gas that the geometric ratio air is also heavy.This gas hold-up forms difficult gas-flow cover, wherein a SbBr on the surface of combustionmaterial
3Gas is a kind of high-efficiency fire-extinguishant.The one, it has stoped the generation of free radical HO and H; The 2nd, SbBr
3Further hydrolysis generates Sb
2O
3Particulate covers the combustionmaterial surface, plays heat insulation, anoxybiotic effect; The 3rd, this SbBr
3Be the promotor that carbide generates, form stable carburization zone at burning surface, make fire end, produce from putting out phenomenon, so the flame retardant effect of its flame retardant effect when being used alone fire retardant is far better, but the burning fuming amount is bigger.The mechanism that magnesium hydroxide flame retardant presses down cigarette is: the thermal endothermic decomposition reaction mainly takes place at the initial stage of substance combustion in them, produces a large amount of water, and water further evaporates and absorbs a large amount of heat energy, plays the effect that reduces oxygen concn in combustion system temperature and the diluted system.The fire retardant mechanism of zinc borate: zinc borate can be simultaneously at condensed phase and gas phase performance fire retardation.It at high temperature melts, and forms the vitreous state coating layer, dehydration at high temperature subsequently, and other effects of evaporation of water heat absorption and water vapor help to make burning from putting out.Zinc borate after the dehydration can promote the formation of inorganic carbon-coating, is difficult to light and burn, and has isolation action.When zinc borate and halogenated flame retardant and time spent, can decompose the hydrogen halide reaction that produces with fire retardant itself and fire retardant.In the presence of halogen compounds, generate halogenation boron, zinc halide, suppress and catch the free hydroxyl, stop combustion chain reaction, form the solid phase tectum simultaneously, the air of isolated burning surface stops flame to burn away and can bring into play smoke elimination fire extinguishing effect.
The each component that uses among the embodiment is:
Standard that reagent name meets or manufacturer
Heavy traffic paving asphalt AH-90 and AH-130 meet the GB/T15180-2000 standard
Magnesium hydroxide (1000 order) Jinan safe star Fine Chemical Co., Ltd
TDE Jinan safe star Fine Chemical Co., Ltd
Antimonous oxide Jinan safe star Fine Chemical Co., Ltd
Zinc borate Jinan safe star Fine Chemical Co., Ltd
Properties-correcting agent, styrene-butadiene rubber(SBR) (SBR) Zibo Gao Shi science, industry and trade company limited
Embodiment 1:
Take by weighing by weight: heavy traffic paving asphalt AH-90,75 parts; 6 parts of TDE; 6 parts of antimonous oxides; 6 parts of zinc borates; 6 parts of magnesium hydroxides; 1.5 parts of properties-correcting agent.
At first, in molten asphalt, add TDE, magnesium hydroxide, antimonous oxide zinc borate, and stir while adding, make each component to be blended in uniformly in the pitch heavy traffic paving asphalt AH-90 fusion when 80 ℃ of the constant temperature; Add properties-correcting agent then, add properties-correcting agent on one side, use high-speed shearing machine at 1000r/min down cut 10min on one side, make the properties-correcting agent swelling, continue high speed shear 30min under 3000～4000r/min again, properties-correcting agent is tapered under shearing action, finally is uniformly distributed in the pitch with fine particle, and shearing starting temperature is 120 ℃～130 ℃, in shear history, flame-retardant pitch can be gradually intensification, intensification can not surpass 170 ℃, obtain the AH-70 road fire-resistant asphalt at last.
Embodiment 2:
Take by weighing by weight: heavy traffic paving asphalt AH-90,80 parts; 4 parts of TDE; 8 parts of antimonous oxides; 8 parts of zinc borates; 1 part of properties-correcting agent.Preparation process obtains the AH-70 road fire-resistant asphalt at last with embodiment 1.
Embodiment 3:
Take by weighing by weight: heavy traffic paving asphalt AH-90,85 parts; 3 parts of TDE; 3 parts of antimonous oxides; 3 parts of zinc borates; 5 parts of magnesium hydroxides; 1 part of properties-correcting agent.Preparation process obtains the AH-70 road fire-resistant asphalt at last with embodiment 1.
Embodiment 4:
Take by weighing by weight: heavy traffic paving asphalt AH-130,70 parts; 3.5 parts of TDE; 6.5 parts of antimonous oxides; 7.0 parts of zinc borates; 11 parts of magnesium hydroxides; 1 part of properties-correcting agent.Preparation process obtains the AH-90 road fire-resistant asphalt at last with embodiment 1.
Embodiment 5:
Take by weighing by weight: heavy traffic paving asphalt AH-130,75 parts; 5 parts of TDE; 7 parts of antimonous oxides; 7 parts of zinc borates; 5.5 parts of magnesium hydroxides; 0.5 part of properties-correcting agent.Preparation process obtains the AH-90 road fire-resistant asphalt at last with embodiment 1.
The flame-retardant pitch that obtains among the embodiment is by following standard testing: penetration degree GB/T4509, softening temperature GB/T4507, ductility GB/T4508, petroleum products flash-point and determination of ignition point method (opening agar diffusion method) GB/T267, wax content SH/T0625, Thin Film Oven Test TFOT GB/T5304, oxygen index method GB2406-93, smoke density GB/T8627-1999, material producing smoke toxicity grading GA132-1996, gained data such as following table:
From last table, can find out, ductility, penetration degree and softening temperature by the flame-retardant pitch of the present invention preparation have all reached the requirement of stipulating among the heavy traffic paving asphalt GB/T15180-2000, and oxygen index is all greater than 27, and smoke density is all less than 75, the flue gas toxity grade safe one-level (ZA that is as the criterion
1), reached the related request of country to fire retardant material.
In the actual use of flame-retardant pitch, by behind the deployed flame-retardant pitch of above-mentioned steps, in mixing and stirring the process of compound, can also in mineral aggregate, add and press down fumicants aluminium hydroxide, add-on is 8%～12% of a flame-retardant pitch weight, smoke suppressing effect is better after adding.To cause serious segregation phenomenon if aluminium hydroxide directly added in the flame-retardant pitch.
Claims (5)
1. a road fire-resistant asphalt comprises: 70 parts～85 parts of heavy traffic paving asphalts by weight; 4 parts～6 parts of TDE; 3 parts～8 parts of zinc borates; 3 parts～8 parts of antimonous oxides; 0.5 part～1.5 parts of properties-correcting agent; Described properties-correcting agent is styrene-butadiene rubber(SBR).
2. road fire-resistant asphalt according to claim 1 also adds magnesium hydroxide, and maximum adding quantity is 11 parts.
3. road fire-resistant asphalt according to claim 1 and 2, heavy traffic paving asphalt in the component is AH-90 or AH-130, use AH-90 can prepare the flame-retardant pitch that meets the AH-70 standard, use AH-130 can prepare the flame-retardant pitch that meets the AH-90 standard.
4. the preparation method of road fire-resistant asphalt according to claim 3 comprises the steps:
1) fusion heavy traffic paving asphalt: make the heavy traffic paving asphalt of certainweight remain on 80 ℃, reach molten state:
2) add additive: in molten asphalt, add TDE, antimonous oxide, zinc borate according to quantity, and stir while adding, make each component mix;
3) add properties-correcting agent: Yi Bian add properties-correcting agent, use high-speed shearing machine at 1000r/min down cut 10min on one side, make the properties-correcting agent swelling, continue high speed shear 30min under 3000r/min～4000r/min again, properties-correcting agent is tapered under shearing action, finally be uniformly distributed in the pitch with fine particle, shearing starting temperature is 120 ℃～130 ℃, in shear history, and the intensification that flame-retardant pitch can be gradually, intensification can not surpass 170 ℃, obtains road fire-resistant asphalt at last.
5. the preparation method of road fire-resistant asphalt according to claim 3 comprises the steps:
1) fusion heavy traffic paving asphalt: make the heavy traffic paving asphalt of certainweight remain on 80 ℃, reach molten state:
2) add additive: in molten asphalt, add TDE, antimonous oxide, zinc borate, magnesium hydroxide according to quantity, and stir while adding, make each component mix;
3) add properties-correcting agent: Yi Bian add properties-correcting agent, use high-speed shearing machine at 1000r/min down cut 10min on one side, make the properties-correcting agent swelling, continue high speed shear 30min under 3000r/min～4000r/min again, properties-correcting agent is tapered under shearing action, finally be uniformly distributed in the pitch with fine particle, shearing starting temperature is 120 ℃～130 ℃, in shear history, and the intensification that flame-retardant pitch can be gradually, intensification can not surpass 170 ℃, obtains road fire-resistant asphalt at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100821422A CN101077932B (en) | 2006-05-23 | 2006-05-23 | Flame-proof asphalt for road and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100821422A CN101077932B (en) | 2006-05-23 | 2006-05-23 | Flame-proof asphalt for road and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101077932A CN101077932A (en) | 2007-11-28 |
| CN101077932B true CN101077932B (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100821422A Expired - Fee Related CN101077932B (en) | 2006-05-23 | 2006-05-23 | Flame-proof asphalt for road and preparation method thereof |
Country Status (1)
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| CN (1) | CN101077932B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101723633B (en) * | 2009-11-27 | 2012-05-16 | 长安大学 | Self-induced road surface micro-surfacing material and preparation method |
| CN101786833B (en) * | 2009-12-28 | 2012-06-27 | 长安大学 | Method for preparing multifunctional mineral asphalt concrete pavement material |
| CN107286554A (en) * | 2017-06-28 | 2017-10-24 | 常州万博金属构件厂 | A kind of flame-retardant pitch and preparation method thereof |
| CN108003381A (en) * | 2017-12-22 | 2018-05-08 | 重庆鑫路捷科技股份有限公司 | Strengthen the pitch smoke suppressant of smoke suppressing and include its mix asphalt |
| CN111187518A (en) * | 2020-03-27 | 2020-05-22 | 蒋文彬 | Flame-retardant modified asphalt material and preparation process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659381A (en) * | 1986-03-28 | 1987-04-21 | Manville Corporation | Flame retarded asphalt blend composition |
| CN1569963A (en) * | 2003-07-25 | 2005-01-26 | 深圳市海川实业股份有限公司 | Fire-retardant and modified asphalt mixture |
| 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 |
| CN1760279A (en) * | 2005-10-13 | 2006-04-19 | 武汉理工大学 | Method for preparing fire-fighting noise rreduced, skidproof material of road surface in tunnel |
-
2006
- 2006-05-23 CN CN2006100821422A patent/CN101077932B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4659381A (en) * | 1986-03-28 | 1987-04-21 | Manville Corporation | Flame retarded asphalt blend composition |
| CN1569963A (en) * | 2003-07-25 | 2005-01-26 | 深圳市海川实业股份有限公司 | Fire-retardant and modified asphalt mixture |
| 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 |
| CN1760279A (en) * | 2005-10-13 | 2006-04-19 | 武汉理工大学 | Method for preparing fire-fighting noise rreduced, skidproof material of road surface in tunnel |
Non-Patent Citations (1)
| Title |
|---|
| Shaopeng Wu,et al..Experimental investigation of related properties of asphalt binders containing various flame retardants.Fuel.2005,851298-1304. * |
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| CN101077932A (en) | 2007-11-28 |
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Assignee: Shenzhen Oceanpower New Material Technology Co., Ltd. Assignor: Shenzhen Oceanpower industry Limited by Share Ltd| Shenzhen OceanPower Engineering Technology Co., Ltd. Contract record no.: 2012440020073 Denomination of invention: Flame-proof asphalt for road and preparation method thereof Granted publication date: 20110525 License type: Exclusive License Open date: 20071128 Record date: 20120419 |
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Owner name: SHENZHEN OCEANPOWER NEW MATERIALS TECHNOLOGY CO., Free format text: FORMER OWNER: HAICHUAN INDUSTRY CO., LTD., SHENZHEN Effective date: 20140408 Free format text: FORMER OWNER: OCEANPOWER CORP. Effective date: 20140408 |
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Effective date of registration: 20140408 Address after: 518040 Guangdong city of Shenzhen province Futian District Che Kung Temple Cheonan digital city building F3.8, block D, floor seven C Patentee after: Shenzhen Oceanpower New Material Technology Co., Ltd. Address before: 518040 Guangdong city of Shenzhen province Futian District Che Kung Temple Cheonan digital city building F3.8, block D, floor seven C Patentee before: Haichuan Industry Co., Ltd., Shenzhen Patentee before: Oceanpower Corp. |
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