CN1935902A - Road fire-resistant asphalt - Google Patents
Road fire-resistant asphalt Download PDFInfo
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- CN1935902A CN1935902A CN 200510037412 CN200510037412A CN1935902A CN 1935902 A CN1935902 A CN 1935902A CN 200510037412 CN200510037412 CN 200510037412 CN 200510037412 A CN200510037412 A CN 200510037412A CN 1935902 A CN1935902 A CN 1935902A
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Abstract
The invention discloses road using inflaming retarding asphalt whose components part by weight are as follows: heavy traffic road petroleum asphalt 60-80, pentabromophenyl ether 3-8, magnesium hydroxide 5-20, aluminum hydroxide 5-20, coupling agent 0.3-0.7, tempering agent 1-3, and modifier 0.5-1.5. While burning it has high oxygen index to form stable charring layer to arise self extinguishing, little lamp black to reduce environment pollution. Thus it has wide application prospect, good socioeconomic performance. The preparing method is simple, effective, economic, convenient, and widely used.
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 consists of by weight: 60 parts～80 parts of heavy traffic paving asphalts; 3 parts～8 parts of decabromodiphenyl oxides; 5 parts～20 parts of magnesium hydroxides; 5 parts～20 parts in aluminium hydroxide; 0.3 part～0.7 part of coupling agent; 1 part～3 parts of blenders; 0.5 part～1.5 parts of properties-correcting agent.
Heavy traffic paving asphalt in the above-mentioned road fire-resistant asphalt component is AH-70.
In the above-mentioned road fire-resistant asphalt component, decabromodiphenyl oxide is a fire retardant; Magnesium hydroxide and aluminium hydroxide play the flame-retardant smoke inhibition effect,, both use more effective than independent use one simultaneously, and the flame-retardant smoke inhibition effect is best when both weight ratios are 1: 1; Coupling agent is selected titanate ester for use, can make magnesium hydroxide and aluminium hydroxide better be dispersed in the system; Properties-correcting agent is selected styrene-butadiene rubber(SBR) for use, and it improves the ductility of flame-retardant pitch; Blender can improve indexs such as the penetration degree, softening temperature of flame-retardant pitch, and blender is selected for use and extracted oil out, and the physical and chemical index such as the following table of extracting oil out are listed:
| Title | Extract oil standard out | Detection method |
| Color | Chocolate | |
| State | Thick liquid |
| Moisture, m% | ＜2.0 | GB/T260-88 | |
| Density p 20/g·cm -3 | 0.9400-0.9800 | GB 1884-92 | |
| Kinematic viscosity ν 40℃/mm 2·s -1 | ＞100 | GB/T265-88 | |
| Four components | Saturated branch, m% | 20-25 | ASTM D4124 |
| Fragrance divides, m% | 50-60 | ||
| Colloid, m% | 15-25 | ||
| Bituminous matter, m% | 1-3 | ||
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 decabromodiphenyl oxide, magnesium hydroxide, aluminium hydroxide, coupling agent and blender according to quantity, and stir while adding, make each component mix;
3, add properties-correcting agent: 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, it is bloated that properties-correcting agent is melted, continue high speed shear 30min under 5000～6000r/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 80 ℃, in shear history, flame-retardant pitch can be gradually intensification, intensification can not surpass 120 ℃, obtain road fire-resistant asphalt at last.
Flame-retardant pitch of the present invention has higher oxygen index, has formed stable charring layer at burning surface, produces from putting out phenomenon, makes fire end.Black smoke during the flame-retardant pitch burning is few, reduces the pollution to environment.If the presence of fire of flame-retardant pitch road surface, loss of life and personal injury and property damage all can be less, have more wide application prospect and favorable social and economic benefits.The 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 oxide is: on the one hand because decomposes has produced hydrogen halide, caught the very big radical HO of activity that has produced when pitch burns cracking, cut off the chain reaction of radical HO, 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 mechanism that magnesium hydroxide and aluminium hydroxide flame-retardant press down cigarette is: the thermal endothermic decomposition reaction mainly takes place at the initial stage of substance combustion in them, produce a large amount of water, 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.Under identical loading level, different aluminium hydroxide, its flame retardant effect difference of magnesium hydroxide proportioning are not obvious, and two kinds of compound uses are then good than independent result of use, though because all be dehydration reaction, but on decomposition temperature and caloric receptivity, difference is arranged.Magnesium hydroxide needs just dehydration under higher temperature, and the carbonization effect is arranged simultaneously.And the caloric receptivity of aluminium hydroxide is relatively littler, and because of its effect that suppresses the material temperature rising is not so good as magnesium hydroxide, both then can replenish mutually in compound use, and its flame retardant properties is better than independent result of use.Magnesium hydroxide has smoke suppressing effect preferably than aluminium hydroxide.
The each component that uses among the embodiment is:
Standard that reagent name meets or manufacturer
Heavy traffic paving asphalt AH-70 and AH-90 meet the GB/T15180-2000 standard
Magnesium hydroxide (1000 order) Jinan safe star Fine Chemical Co., Ltd
Aluminium hydroxide (1000 order) Jinan safe star Fine Chemical Co., Ltd
Decabromodiphynly oxide Jinan safe star Fine Chemical Co., Ltd
Coupling agent: titanic acid ester TC-114 Anhui Tai Chang chemical industry company limited
Properties-correcting agent: styrene-butadiene rubber(SBR) (SBR) Zibo Gao Shi science, industry and trade company limited
Blender: extracting oily physical and chemical index out, to meet following table listed
| Title | Extract oil standard out | Extract oily measured value out | Detection method | |
| Color | Chocolate | Chocolate | ||
| State | Thick liquid | Thick liquid | ||
| Moisture, m% | ＜2.0 | 1.52 | GB/T260-88 | |
| Density p 20/g·cm -3 | 0.9400-0.9800 | 0.9528 | GB 1884-92 | |
| Kinematic viscosity ν 40℃/mm 2·s -1 | ＞100 | 435.17 | GB/T265-88 | |
| Four components | Saturated branch, m% | 20-25 | 22.09 | ASTM D4124 |
| Fragrance divides, m% | 50-60 | 53.54 | ||
| Colloid, m% | 15-25 | 20.19 | ||
| Bituminous matter, m% | 1-3 | 1.39 | ||
Embodiment 1:
Take by weighing by weight: 60 parts of heavy traffic paving asphalt AH-70; 8 parts of decabromodiphenyl oxides; 20 parts of magnesium hydroxides; 20 parts in aluminium hydroxide; 0.6 part of coupling agent; 1.5 parts of blenders; 0.5 part of properties-correcting agent.
At first with heavy traffic paving asphalt AH-70 fusion when 80 ℃ of the constant temperature, in molten asphalt, add decabromodiphenyl oxide, magnesium hydroxide, aluminium hydroxide, coupling agent and blender, and stir while adding, make each component to be blended in uniformly in the pitch, 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, it is bloated that properties-correcting agent is melted, continue high speed shear 30min under 5000～6000r/min again, properties-correcting agent is tapered under shearing action, finally is uniformly distributed in the pitch with fine particle, makes flame-retardant pitch like this.
Embodiment 2:
Take by weighing by weight: 80 parts of heavy traffic paving asphalt AH-70; 3 parts of decabromodiphenyl oxides; 5 parts of magnesium hydroxides; 10 parts in aluminium hydroxide; 0.45 part of coupling agent; 2 parts of blenders; 1.5 parts of properties-correcting agent.Preparation process is with embodiment 1.
Embodiment 3:
Take by weighing by weight: 65 parts of heavy traffic paving asphalt AH-70; 6 parts of decabromodiphenyl oxides; 10 parts of magnesium hydroxides; 5 parts in aluminium hydroxide; 0.3 part of coupling agent; 1 part of blender; 0.8 part of properties-correcting agent.Preparation is with embodiment 1.
Embodiment 4:
Take by weighing by weight: 70 parts of heavy traffic paving asphalt AH-90; 7 parts of decabromodiphenyl oxides; 15 parts of magnesium hydroxides; 10 parts in aluminium hydroxide; 0.7 part of coupling agent; 3 parts of blenders; 1 part of properties-correcting agent.Preparation process is with embodiment 1.
Embodiment 5:
Take by weighing by weight: 70 parts of heavy traffic paving asphalt AH-90; 6 parts of decabromodiphenyl oxides; 10 parts of magnesium hydroxides; 10 parts in aluminium hydroxide; 0.6 part of coupling agent; 2 parts of blenders; 0.8 part of properties-correcting agent.Preparation process is 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/T 4508, petroleum products flash-point and determination of ignition point method (opening agar diffusion method) GB/T267, oxygen index method GB/T 2406-93, smoke density GB/T 8627-1999, material producing smoke toxicity grading GA 132-1996, gained data such as following table:
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Heavy traffic paving asphalt | ||
| The asphalt component kind | AH-70 | AH-70 | AH-70 | AH-90 | AH-90 | AH-70 | AH-90 |
| 25 ℃ of penetration degrees (ddm) | 68.2 | 69.8 | 67.3 | 92 | 90 | 60～80 | 80～100 |
| Softening temperature ℃ | 46.8 | 44.2 | 45.1 | 45.4 | 44.8 | 44～54 | 42～52 |
| 15 ℃ of ductilities (cm) | 102.6 | 104.3 | 103.5 | 104.0 | 103.8 | ≥100 | ≥100 |
| Flash-point ℃ | 283 | 278 | 281 | 280 | 281 | ≥230 | ≥230 |
| Oxygen index | 32 | 30 | 31 | 33 | 32.5 | ----- | ----- |
| Smoke density | 46 | 47 | 44 | 50 | 48 | ----- | ----- |
| The flue gas toxity grade | Accurate safe one-level (ZA 1) | Accurate safe one-level (ZA 1) | Accurate safe one-level (ZA 1) | Accurate safe one-level (ZA 1) | Accurate safe one-level (ZA 1) | ----- | ----- |
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.
Claims (5)
1, a kind of road fire-resistant asphalt consists of by weight: 60 parts～80 parts of heavy traffic paving asphalts; 3 parts～8 parts of decabromodiphenyl oxides; 5 parts～20 parts of magnesium hydroxides; 5 parts～20 parts in aluminium hydroxide; 0.3 part～0.7 part of coupling agent; 1 part～3 parts of blenders; 0.5 part～1.5 parts of properties-correcting agent.
2, road fire-resistant asphalt according to claim 1, the heavy traffic paving asphalt in the component are AH-70.
3, road fire-resistant asphalt according to claim 1 and 2, coupling agent is selected titanate ester for use; Properties-correcting agent is selected styrene-butadiene rubber(SBR) for use; Blender is selected for use and is extracted oil out, and the physical and chemical index of extracting oil out should meet following table and require:
4, road fire-resistant asphalt according to claim 3, magnesium hydroxide and aluminium hydroxide weight ratio are 1: 1 in the component.
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 decabromodiphenyl oxide, magnesium hydroxide, aluminium hydroxide, coupling agent and blender according to quantity, and stir while adding, make each component mix;
3) add properties-correcting agent: 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, it is bloated that properties-correcting agent is melted, continue high speed shear 30min under 5000～6000r/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 80 ℃, in shear history, flame-retardant pitch can be gradually intensification, intensification can not surpass 120 ℃, obtain road fire-resistant asphalt at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100374123A CN1935902B (en) | 2005-09-22 | 2005-09-22 | Road fire-resistant asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100374123A CN1935902B (en) | 2005-09-22 | 2005-09-22 | Road fire-resistant asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1935902A true CN1935902A (en) | 2007-03-28 |
| CN1935902B CN1935902B (en) | 2010-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100374123A Expired - Fee Related CN1935902B (en) | 2005-09-22 | 2005-09-22 | Road fire-resistant asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1935902B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432001C (en) * | 2007-04-20 | 2008-11-12 | 东南大学 | Road surface material mixed with inorganic flaming-resistant agent and asphalt-mastic-broken stone |
| CN101724280B (en) * | 2009-12-07 | 2012-01-04 | 长安大学 | Method for preparing road asphalt suitable for microwave heating |
| CN105131619A (en) * | 2015-08-21 | 2015-12-09 | 中国路桥工程有限责任公司 | Inorganic flame retardant modified asphalt and preparation process thereof |
| CN105733278A (en) * | 2014-12-11 | 2016-07-06 | 中国石油天然气股份有限公司 | Preparation method of flame-retarding asphalt |
| CN106336675A (en) * | 2016-09-14 | 2017-01-18 | 南京林业大学 | Composite flame retardant formula for inhibiting asphalt combustion process and preparation method of composite flame retardant formula |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2755682C3 (en) * | 1977-12-14 | 1981-02-12 | Chemische Werke Huels Ag, 4370 Marl | Flame-retardant thermoplastic bituminous melt |
| US4659381A (en) * | 1986-03-28 | 1987-04-21 | Manville Corporation | Flame retarded asphalt blend composition |
| US5100715A (en) * | 1990-03-26 | 1992-03-31 | Gs Roofing Products Company, Inc. | Fire resistant roofing system |
| CN1074434C (en) * | 1998-04-20 | 2001-11-07 | 徐润宝 | Synthetic liquid asphalt for heavy traffic flow |
| CN100419026C (en) * | 2003-07-25 | 2008-09-17 | 深圳市海川实业股份有限公司 | Fire-retardant and modified asphalt mixture |
| CN100424134C (en) * | 2003-08-06 | 2008-10-08 | 深圳市海川实业股份有限公司 | Flame-retared modified asphalt mixed stock |
-
2005
- 2005-09-22 CN CN2005100374123A patent/CN1935902B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432001C (en) * | 2007-04-20 | 2008-11-12 | 东南大学 | Road surface material mixed with inorganic flaming-resistant agent and asphalt-mastic-broken stone |
| CN101724280B (en) * | 2009-12-07 | 2012-01-04 | 长安大学 | Method for preparing road asphalt suitable for microwave heating |
| CN105733278A (en) * | 2014-12-11 | 2016-07-06 | 中国石油天然气股份有限公司 | Preparation method of flame-retarding asphalt |
| CN105131619A (en) * | 2015-08-21 | 2015-12-09 | 中国路桥工程有限责任公司 | Inorganic flame retardant modified asphalt and preparation process thereof |
| CN106336675A (en) * | 2016-09-14 | 2017-01-18 | 南京林业大学 | Composite flame retardant formula for inhibiting asphalt combustion process and preparation method of composite flame retardant formula |
| CN106336675B (en) * | 2016-09-14 | 2018-12-14 | 南京林业大学 | A kind of composite flame-proof agent prescription and preparation method thereof inhibiting pitch combustion process |
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| Publication number | Publication date |
|---|---|
| CN1935902B (en) | 2010-07-14 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Oceanpower Corp. Assignor: Haichuan Industry Co., Ltd., Shenzhen Contract fulfillment period: 2008.8.9 to 2015.1.17 contract change Contract record no.: 2008440000275 Denomination of invention: Flame-proof asphalt for road and preparation method thereof License type: Exclusive license Record date: 20081014 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.9 TO 2015.1.17; CHANGE OF CONTRACT Name of requester: SHENZHEN HAICHUAN ENGINEERING TECHNOLOGY CO., LTD. Effective date: 20081014 |
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