CN100564456C - Fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound - Google Patents
Fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound Download PDFInfo
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- CN100564456C CN100564456C CNB2005100333636A CN200510033363A CN100564456C CN 100564456 C CN100564456 C CN 100564456C CN B2005100333636 A CNB2005100333636 A CN B2005100333636A CN 200510033363 A CN200510033363 A CN 200510033363A CN 100564456 C CN100564456 C CN 100564456C
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- heavy traffic
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 40
- 239000010426 asphalt Substances 0.000 title claims abstract description 30
- 150000001875 compounds Chemical class 0.000 title claims abstract description 16
- 210000000003 hoof Anatomy 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 18
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229920000642 polymer Polymers 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims abstract description 11
- 239000003381 stabilizer Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 9
- 235000019738 Limestone Nutrition 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000006028 limestone Substances 0.000 claims description 4
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- 108020001077 Anthranilate Phosphoribosyltransferase Proteins 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract 1
- 239000004567 concrete Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 150000002736 metal compounds Chemical class 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 125000001246 bromo group Chemical class Br* 0.000 description 2
- 150000004768 bromobenzenes Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical group 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- 206010000369 Accident Diseases 0.000 description 1
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 244000050510 Cunninghamia lanceolata Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- -1 Polybrominated biphenyl oxide compound Chemical class 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 229920004935 Trevira® Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- 239000011384 asphalt concrete Substances 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 125000005393 dicarboximide group Chemical group 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000003340 retarding agent Substances 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229920005613 synthetic organic polymer Polymers 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to building material field, be specifically related to a kind of fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound that tunnel road surface is mated formation that is used for, it is characterized in that selecting for use fire retardant to add asphalt, make compound have flame retardant properties, and give full play to the pavement performance advantage of pitch horse's hoofs fat crushed stones (SMA) compound, the component of fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound comprises heavy traffic asphaltum, polymer modifiers, fire retardant gathers materials, filler, fiber stabilizer.
Description
Technical field
Invention relates to a kind of asphalt, especially a kind of modified asphalt mixture that is applicable to the risen flame retardant effect of vcehicular tunnel paving.
Background technology
Be accompanied by the fast development of China's motorway, the quantity of vcehicular tunnel is also in continuous increase.Vcehicular tunnel is as a special road section of highway, length does not wait to several kilometers from hundreds of rice, imagination is at this special road section, in case the automobile circuit fire takes place, automobile goods fire and traffic accident car collision, goods automobile (particularly tank wagon) are overturned the fire that causes, phenomenons such as smog is big, temperature is high, smoke evacuation is difficult, evacuation is difficult, fire attack difficulty can occur, its consequence is hardly imaginable.A lot of these class accidents had taken place in China and foreign countries' highway circle, suffered heavy losses.This shows,, should do one's utmost from all kinds of disaster hidden-troubles of source elimination based on strick precaution for the fire safety problem of vcehicular tunnel.
At present, domestic most of tunnel road surface generally adopts cement concrete or pitch to mat formation, though to a certain extent, the relative bituminous concrete pavement of cement concrete pavement is better than bituminous concrete pavement at aspects such as water tolerance, the feature of environmental protection, and can also avoid obnoxious flavour that pitch comes out to harm that human body caused when mating formation.But, according to domestic and international many studies show that, advantages such as cement concrete has been difficult to satisfy the requirement on road surface in the modern tunnel, and bituminous concrete pavement is comfortable with its driving, noise is little, airborne dust is few, easy to maintenance are widely used, and are the major project materials that is used for road construction at present.
The same with most of synthetic organic polymers, pitch has combustibility in air, along with its as the widespread use of material of construction on engineering, just progressively rise by the danger of the fire that it caused.Especially as long pavement material apart from road surface in the tunnel, in case vehicle fire takes place, bituminous pavement also can be on fire simultaneously or be generated dense smoke, thereby in the difficulty that has increased the weight of fire and personnel escape virtually.For example, the second in the world long tunnel Switzerland St.Gotthard Tunnel fire disaster tragic incident, because the on-the-spot various a large amount of toxic gases that material combustion discharged without fire-retardant finish that use, thereby making the very fast at short notice death by suffocation of people, number is 41 people nearly.
In order to solve the tunnel fire proofing problem, at present, people reduce the combustibility of bituminous pavement in the tunnel by taking two kinds of different modes.A kind of is to add fire retardant in bituminous concrete, by in itself and the pitch during flammable organic compound burning institute decompose and produce material and react, thereby slow down or stop the incendiary chain reaction, reach fire-retardant purpose.Another kind is to adopt to smear the back-fire relief heat-resistant coating on the supercrust of asphalt concrete pavement, plays the fp effect by isolating blacktop.
People such as Li Zuwei, Chen Huiqiang is at " research of flame-retardant pitch modification technology and fire retardant mechanism thereof " (2002, " Changsha Traffic College journal ", Vol.18, No.4, P.44-47) in, according to special environment for use in be correlated with both at home and abroad modern technique and the tunnel, proposed the technical requirements of tunnel pavement, and studied asphalt flame-retardant modification technology and its fire retardant mechanism of suitable tunnel pavement.Its relevant flame-retarded technology mainly is by add halogenated flame retardant and inorganic metal compound fire retardant in bituminous concrete, utilize halogenated flame retardant that decomposition reaction at high temperature takes place and discharge HX (X represents halogen system), radical generation chain reaction in HX and the flame, radical concentration is reduced, thereby slow down or stop the incendiary chain reaction, reach fire-retardant purpose; Inorganic metal compound is heated to certain temperature and can decomposes, and generates water, and this reaction itself is exactly thermo-negative reaction, and the water that reaction is generated also can absorb a large amount of heat, thereby reduced the temperature of system, delayed the bituminous decomposition, reached fire-retardant purpose.To a certain extent, though the mutual synergistic effect of halogenated flame retardant and inorganic metal compound fire retardant can play tangible flame retardant effect, it is relatively poor that but the thermostability of halogenated flame retardant and smoke-suppressing all compare, inorganic metal compound wants to reach the ideal flame retardant effect, must strengthen its loading level, and loading level is strengthened, must cause pitch mixing, mobile poor during moulding, the processing of material and mechanical property are descended.
U.S. Pat 4659381 discloses a kind of antiflaming asphalt mixture, and it is by adding at least a halogenated flame retardant and at least a phosphorated mineral compound in modifying asphalt, as ammonium phosphate or red phosphorus, reaching the purpose of fire protection flame retarding.Though to a certain extent, it can satisfy the particular requirement of modern fire prevention tunnel road surface preferably, because it has adopted inert filler as weighting agent, when compound composition stability of structure was used for highway fire prevention tunnel road surface, effect was not fine.
During presence of fire, cigarette is to produce at first and the most fatal factor, and according to statistics, death toll has 80% to be due to cigarette suffocates in the fire.And in the middle of the existing flame-retarded technology, but seldom have " fire-retardant " and " pressing down cigarette " are mentioned in the same breath, moreover for some superpolymer, it is more even more important than " fire-retardant " " to press down cigarette ", especially the fire retardant of Halogen system is the main source that is fuming of smog, so, can develop a kind of can either be fire-retardant, the efficient flame-retarding agent that can press down cigarette again is the main direction and the trend of industry development from now on.
Summary of the invention
The present invention adopts fire retardant and polymer composite modified asphalt on the basis of present flame-retarded technology, and preparation is used for pitch horse's hoofs fat crushed stones (SMA) compound of tunnel pavement.This compound has following characteristics: (1) is fire-retardant; (2) has the good pavement performance that common SMA compound has; (3) frictional coefficient height; (4) noise is low.
Fire-retardant modified asphalt horse's hoofs fat crushed stones of the present invention (SMA) compound comprises following component: heavy traffic asphaltum, and polymer modifiers, fire retardant gathers materials, filler, fiber stabilizer, each constituent materials character and addition content are as follows:
Heavy traffic asphaltum, label are AH-70 or AH-90 or AH-110.
Polymer modifiers can be SBS or SBR or SB or PE or rubber powder, and volume is 1%～12% of a heavy traffic asphaltum volume.
Fire retardant adopts halogenated fire-retardants, can be the adjacent dicarboximide of Polybrominated biphenyl oxide compound or many bromobenzenes or many bromines biphenol-A and ester or many bromines hexichol oxycompound or many bromobenzenes, and volume is 1%～20% of heavy traffic asphaltum and a polymer modifiers total mass.
Heavy traffic asphaltum, polymer modifiers and the flame-retardant mixture consumption in antiflaming asphalt mixture is 5.7%～6.4%.
Gathering materials can be basalt or diabase or limestone, and technical requirements sees the following form:
Table 1 technical requirements of gathering materials
| Test index | Requirement |
| Crush values (%) | ≯25 |
| The China fir machine that falls abrasion (%) | ≯30 |
| Apparent density (g/cm 2) | ≮2.6 |
| Water-intake rate (%) | ≯2.0 |
| With bituminous adhesivity (level) | ≮4 |
| Faller gill shape granule content (%) | ≯15 |
| Soft rock content (BPN) | ≯1 |
Filler: limestone dust or slaked lime or cement;
Gather materials, the whole grating of filler is:
Table 2 grading limit
| Sieve aperture/mm | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.07 5 |
| Percent of pass/% | 100 | 90～1 00 | 50～7 5 | 18～3 0 | 15～2 6 | 14～2 4 | 12～2 0 | 10～1 6 | 8～12 |
Fiber stabilizer can be polyacrylonitrile fibre or trevira or lignin fibre, and volume is 0.1%～0.5% of a mixture quality.
Embodiment
Fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound comprises following several component,
Gather materials: basalt meets the regulation of table 1.
Filler: limestone dust.
Mineral aggregate (gathering materials+filler) grating is:
| Sieve aperture/mm | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.075 |
| Percent of pass/% | 100 | 68.0 | 26.5 | 18.9 | 14.9 | 12.5 | 11.0 | 9.5 |
Heavy traffic asphaltum: the AH-90 heavy traffic asphaltum, by luxuriant alum production;
Polymer modifiers: star-shaped sbs properties-correcting agent, addition content are heavy traffic bituminous 4.5%;
Fire retardant: decabromodiphynly oxide, volume are 8% of heavy traffic asphaltum and polymer modification agent composition;
Heavy traffic asphaltum+polymer modifiers+flame-retardant mixture: gather materials+filler=6: 100
Fiber stabilizer: Derain nit AS II polyacrylonitrile fibre, volume is 0.3% of a compound total mass.
Claims (1)
1, fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound comprises following component: heavy traffic asphaltum, polymer modifiers, fire retardant, gather materials filler, fiber stabilizer, wherein, gathering materials is basalt, and filler is a limestone dust, it is characterized in that: heavy traffic asphaltum is the AH-90 heavy traffic asphaltum, polymer modifiers is a star-shaped sbs properties-correcting agent, and the polymer modifiers addition content is a heavy traffic bituminous 4.5%; Fire retardant is a decabromodiphynly oxide, and the fire retardant volume is 8% of heavy traffic asphaltum and a polymer modifiers; Fiber stabilizer is a Derain nit ASII polyacrylonitrile fibre, and the fiber stabilizer volume is 0.3% of a compound total mass; Heavy traffic asphaltum, polymer modifiers and flame-retardant mixture: gather materials and filler be 6: 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100333636A CN100564456C (en) | 2005-03-04 | 2005-03-04 | Fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100333636A CN100564456C (en) | 2005-03-04 | 2005-03-04 | Fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1827696A CN1827696A (en) | 2006-09-06 |
| CN100564456C true CN100564456C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100333636A Expired - Fee Related CN100564456C (en) | 2005-03-04 | 2005-03-04 | Fire-retardant modified asphalt horse's hoofs fat crushed stones (SMA) compound |
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| Country | Link |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425565C (en) * | 2007-04-13 | 2008-10-15 | 东南大学 | Environment-friendly type flame-proof asphalt mastic stone mixture for tunnel |
| CN101333337B (en) * | 2007-06-25 | 2012-02-15 | 深圳市海川实业股份有限公司 | High modulus bituminous mixture for intermediate surface layer of asphalt pavement |
| CN101891416A (en) * | 2010-06-24 | 2010-11-24 | 东南大学 | Flame retardant microsurfacing compound for environment-friendly tunnel |
| CN102134825B (en) * | 2011-02-25 | 2012-07-04 | 大连市市政设计研究院有限责任公司 | Dewatering and noise reduction bituminous concrete pavement |
| CN104530733A (en) * | 2015-01-27 | 2015-04-22 | 浙江振阳绝热科技有限公司 | Flame-retardant asphalt mastic and preparation method thereof |
| CN108083699B (en) * | 2017-12-06 | 2020-12-25 | 北京建筑大学 | Novel road polymer mixture and preparation method thereof |
-
2005
- 2005-03-04 CN CNB2005100333636A patent/CN100564456C/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| 改性沥青SMA沥青马蹄脂路面施工技术. 温天卿，高为勇，许志明.济南大学学报(自然科学版)，第16卷第4期. 2002 * |
| 沥青玛蹄脂碎石混合料路面. 沈金安.公路，第12期. 1997 * |
| 阻燃改性沥青油毡的研究. 吴少鹏.新型建筑材料，第8期. 1997 * |
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| Publication number | Publication date |
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| CN1827696A (en) | 2006-09-06 |
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