CN100535056C - Flame-proof filling material special for tunnel sheet pavement - Google Patents
Flame-proof filling material special for tunnel sheet pavement Download PDFInfo
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- CN100535056C CN100535056C CNB2007100535957A CN200710053595A CN100535056C CN 100535056 C CN100535056 C CN 100535056C CN B2007100535957 A CNB2007100535957 A CN B2007100535957A CN 200710053595 A CN200710053595 A CN 200710053595A CN 100535056 C CN100535056 C CN 100535056C
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Abstract
The invention relates to flame retarding type fillings, in particular to flame retarding type fillings special for a tunnel asphalt road surface. The invention is characterized in that the fillings comprises limestone powder, flame retarding substance and modified substance with the weight ratio of 100:60 to 120:70 to 150, wherein, the flame retarding substance consists of aluminium hydroxides, magnesium hydrates, boron flame retardants and synergists with the weight ratio of 100:60 to 85:4 to 15:2 to 6. The synergist is Fe oxidant, Sb2O3, MgO or MoO3. The modified substance comprises lime hydrate, diatomite and natural zeolite powder with the weight ratio of 100:60 to 80:15 to 30. The invention has the advantages of high flame retarding efficiency, nontoxic operation, effective usage for improving the properties of asphalt mixed material, etc. when being used on roads.
Description
Technical field
The invention belongs to the Materials Science and Engineering field, be specifically related to a kind of flame-proof filling material.
Background technology
Asphalt pavement material has become the main flow of China's road pavement, but because pitch has combustibility, the tunnel internal hemi-closure space, in case it is huge that presence of fire is not only lost, and the danger that exists the bituminous pavement burning to cause fire spreading, jeopardize other vehicles, so asphalt pavement material is in Tunnel Engineering, particularly large-scale vcehicular tunnel application in engineering is restricted for a long time.
Lot of domestic and international scholar, producer have launched the research and development of flame-retardant pitch ground surface material, mainly concentrate on fire-retardant design to bituminous material, the fire retardant that adopts mostly is organic fire-retardants such as bromine class halogenated flame retardant, mostly production technique is to add flame retardant materials and prepares flame-retardant pitch in pitch, further produce antiflaming asphalt mixture then.Organic based flame retardant flame retarding efficiency is no doubt very high, but to exist fire retardant generally poisonous, volatilely in the mixing and stirring of compound, construction and the use goes out toxic gas, and the personnel health is threatened; Organic based flame retardant is also very big to the influence of asphalt performance, and a lot of fire retardants only with the pitch physical mixed, the segregation problem can appear in long-term storage, causes the production of flame-retardant pitch to have ageing problem; In addition, organic based flame retardant cost is very high, is unfavorable for the road surface large-scale promotion application, so remain the asphalt flame-retardant technology and the product of development of new.
Summary of the invention
The object of the present invention is to provide the high flame-proof filling material special for tunnel sheet pavement of a kind of flame retarding efficiency.
To achieve these goals, technical scheme of the present invention is: a kind of flame-proof filling material special for tunnel sheet pavement, it is characterized in that it is made up of limestone breeze, fire retardant matter and modified material, mass ratio is the limestone breeze: fire retardant matter: modified material=100: 60～120: 70～150;
Described fire retardant matter is made up of aluminium hydroxide, magnesium hydroxide, boron flame retardant and synergetic effect additive, and the mass ratio of aluminium hydroxide, magnesium hydroxide, boron flame retardant, synergetic effect additive is 100: 60～85: 4～15: 2～6; Described synergetic effect additive is Fe oxide compound, S6
2O
3, MgO or MoO
3
Described modified material is made up of slaked lime, diatomite and natural zeolite powder, and mass ratio is a slaked lime: diatomite: natural zeolite powder=100: 60～80: 15～30.
Described aluminium hydroxide is selected 325 orders above technical grade aluminium hydroxide or toothpaste level aluminium hydroxide for use.
Described magnesium hydroxide is selected 1250 orders or 2500 order industrial magnesium hydroxides for use.
Described boron flame retardant is selected ammonium borate, borax, zinc borate or barium metaborate for use.
Described Fe oxide compound is FeO, Fe
3O
4Or Fe
2O
3
A kind of preparation that is applied to tunnel flame-retardant pitch surface layer of flame-proof filling material special for tunnel sheet pavement:
Tunnel flame-retardant pitch surface layer is made up of coarse aggregate, fine aggregate, pitch, fiber, flame-proof filling material special for tunnel sheet pavement, and mass ratio is a coarse aggregate: fine aggregate: pitch: fiber: flame-proof filling material special for tunnel sheet pavement=100: 15～40: 3～7: 0.1～0.6: 3～15; Described coarse aggregate is selected one of basalt, diabase for use; Described fine aggregate is selected one of basalt, diabase, limestone for use; Described pitch is selected one of SBS modifying asphalt, high-viscosity modified asphalt for use; Described fiber is selected one of trevira, lignin fibre, polyacrylonitrile fibre for use;
Adopt intermittent type pitch batching plant to produce, empty a breeze storehouse before the production, it is stand-by that flame-proof filling material special for tunnel sheet pavement is pumped into the breeze storehouse; Mix and stir when producing at first with coarse aggregate, fine aggregate and blending in of fibers dry mixing 10～25s, spray into pitch wet-mixing 10～30s then after, spray into again and get final product after flame-proof filling material special for tunnel sheet pavement continues to mix and stir 10～30s; Temperature schedule is identical with the plain asphalt concrete production.
The invention has the beneficial effects as follows: a kind of flame retarding efficiency height, nontoxic and can effectively improve the flame-proof filling material special for tunnel sheet pavement of asphalt pavement performance is provided.
In the fire retardant matter of the present invention, the decomposition temperature of aluminium hydroxide is decomposed a large amount of moisture of release at 220～250 ℃, stop asphalt fuel combustion, and the decomposition temperature of magnesium hydroxide is higher than about 100 ℃ of aluminium hydroxide, remedies the deficiency on the aluminium hydroxide flame-retardant performance; Boron flame retardant material decomposes can absorb heat and dilute oxygen concn, forms fused glassiness silicate blocking layer on the bituminous material surface simultaneously and impels the bituminous matter carbonization in the pitch to press down cigarette; Synergetic effect additive can improve the flame retarding efficiency and the dispersiveness of aluminium hydroxide and magnesium hydroxide effectively, improves the fire retardancy of system.
In the modified material of the present invention, slaked lime can effectively improve the adhesive attraction between building stones and pitch, has the effect of antistripping, anti-damage by water; And diatomite not only can significantly improve the pavement performance of pitch and asphalt, and diatomite can be used as a kind of silicone based synergistic fire retardant use, the flame retardant effect of enhancing aluminium hydroxide and magnesium hydroxide system; The spatial network framework of natural zeolite powder will effectively improve the sticking toughness of bituminous, improve the weather resistance of compound, and its space structure is very beneficial for the formation of carbonization blocking layer, the flame-retarding characteristic of raising material in the fire of road surface;
Flame-proof filling material special for tunnel sheet pavement size range 0.075mm percent of pass is more than 90%, pH value is alkalescence, hydrophilic coefficient＜1.0 8～10, not only satisfy " asphalt highway construction technique normalizing " JTG F40-2004 requirement fully, and be better than general limestone powder; The tunnel flame-retardant pitch surface layer of this flame-proof filling material special for tunnel sheet pavement preparation simultaneously, limiting oxygen index(LOI) is more than 27%, flame retardant properties is good, and more general organic bromine class flame-retardant pitch to have a cost low, nontoxic, easy to use, reusable characteristics are compared with the asphalt of general limestone dust preparation, owing to added inorganic asphalt modification material, dynamic stability is general to improve 1000～2000 times/mm, pavement performance be improved significantly.
Embodiment
In order to understand the present invention better, further illustrate content of the present invention below in conjunction with embodiment, but content of the present invention not only is confined to the following examples.
Embodiment 1:
A kind of flame-proof filling material special for tunnel sheet pavement, it is made up of limestone breeze, fire retardant matter and modified material, and mass ratio is the limestone breeze: fire retardant matter: modified material=100: 60: 70;
Described fire retardant matter is made up of aluminium hydroxide, magnesium hydroxide, boron flame retardant and synergetic effect additive, and the mass ratio of aluminium hydroxide, magnesium hydroxide, boron flame retardant, synergetic effect additive is 100: 60: 4: 2; Described aluminium hydroxide is selected the above technical grade aluminium hydroxide of 325 orders for use, and described magnesium hydroxide is selected 1250 order industrial magnesium hydroxides for use, and described boron flame retardant is selected ammonium borate for use, and described synergetic effect additive is Fe oxide compound (FeO, Fe
3O
4Or Fe
2O
3);
Described modified material is made up of slaked lime, diatomite and natural zeolite powder, and mass ratio is a slaked lime: diatomite: natural zeolite powder=100: 60: 15.
The preparation of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement: choose raw material by said ratio, mix and stir, get flame-proof filling material special for tunnel sheet pavement.
The preparation that is applied to tunnel flame-retardant pitch surface layer of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement:
Tunnel flame-retardant pitch surface layer is made up of coarse aggregate, fine aggregate, pitch, fiber, flame-proof filling material special for tunnel sheet pavement, and mass ratio is a coarse aggregate: fine aggregate: pitch: fiber: flame-proof filling material special for tunnel sheet pavement=100: 15: 3: 0.1: 3; Described coarse aggregate is selected basalt for use; Described fine aggregate is selected basalt for use; Described pitch is selected the SBS modifying asphalt for use; Described fiber is selected trevira for use; Adopt intermittent type pitch batching plant to produce, empty a breeze storehouse before the production, it is stand-by to pump into the breeze storehouse by proportioning design and the flame-proof filling material that mixes; Mix and stir when producing at first with coarse aggregate, fine aggregate and blending in of fibers dry mixing 10s, spray into pitch wet-mixing 10s then after, spray into again and get final product after flame-proof filling material special for tunnel sheet pavement continues to mix and stir 100s; Temperature schedule is identical with the plain asphalt concrete production.
Embodiment 2:
A kind of flame-proof filling material special for tunnel sheet pavement, it is made up of limestone breeze, fire retardant matter and modified material, and mass ratio is the limestone breeze: fire retardant matter: modified material=100: 80: 80;
Described fire retardant matter is made up of aluminium hydroxide, magnesium hydroxide, boron flame retardant and synergetic effect additive, and the mass ratio of aluminium hydroxide, magnesium hydroxide, boron flame retardant, synergetic effect additive is 100: 65: 6: 3; Described aluminium hydroxide is selected the above technical grade aluminium hydroxide of 325 orders for use, and described boron flame retardant is selected zinc borate for use, and described magnesium hydroxide is selected 1250 order industrial magnesium hydroxides for use, and described synergetic effect additive is Sb
2O
3
Described modified material is made up of slaked lime, diatomite and natural zeolite powder, and mass ratio is a slaked lime: diatomite: natural zeolite powder=100: 65: 18.
The preparation of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement: choose raw material by said ratio, mix and stir, get flame-proof filling material special for tunnel sheet pavement.
The preparation that is applied to tunnel flame-retardant pitch surface layer of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement:
Tunnel flame-retardant pitch surface layer is made up of coarse aggregate, fine aggregate, pitch, fiber, flame-proof filling material special for tunnel sheet pavement, and mass ratio is a coarse aggregate: fine aggregate: pitch: fiber: flame-proof filling material special for tunnel sheet pavement=100: 18: 4.5: 0.2: 8; Described coarse aggregate is selected basalt for use, and described fine aggregate is selected basalt for use, and described pitch is selected the SBS modifying asphalt for use, and described fiber is selected lignin fibre for use;
Adopt intermittent type pitch batching plant to produce, empty a breeze storehouse before the production, it is stand-by that flame-proof filling material special for tunnel sheet pavement is pumped into the breeze storehouse; Mix and stir when producing at first with coarse aggregate, fine aggregate and blending in of fibers dry mixing 15s, spray into pitch wet-mixing 20s then after, spray into again and get final product after flame-proof filling material special for tunnel sheet pavement continues to mix and stir 20s; Temperature schedule is identical with the plain asphalt concrete production.
Flame-proof filling material special for tunnel sheet pavement size range 0.075mm percent of pass reaches 93%, pH value 10, be alkalescence, hydrophilic coefficient 0.65, satisfy " asphalt highway construction technique normalizing " JTG F40-2004 requirement fully, limiting oxygen index(LOI) 28.2%, 6200 times/mm of dynamic stability, excellent road performance.
Embodiment 3:
A kind of flame-proof filling material special for tunnel sheet pavement, it is made up of limestone breeze, fire retardant matter and modified material, and mass ratio is the limestone breeze: fire retardant matter: modified material=100: 120: 150;
Described fire retardant matter is made up of aluminium hydroxide, magnesium hydroxide, boron flame retardant and synergetic effect additive, and the mass ratio of aluminium hydroxide, magnesium hydroxide, boron flame retardant, synergetic effect additive is 100: 85: 15: 6; Described aluminium hydroxide is selected the above toothpaste level aluminium hydroxide of 325 orders for use, and described magnesium hydroxide is selected 2500 order industrial magnesium hydroxides for use, and described boron flame retardant is selected barium metaborate for use, and described synergetic effect additive is MgO;
Described modified material is made up of slaked lime, diatomite and natural zeolite powder, and mass ratio is a slaked lime: diatomite: natural zeolite powder=100: 80: 30.
The preparation of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement: choose raw material by said ratio, mix and stir, get flame-proof filling material special for tunnel sheet pavement.
The preparation that is applied to tunnel flame-retardant pitch surface layer of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement:
Tunnel flame-retardant pitch surface layer is made up of coarse aggregate, fine aggregate, pitch, fiber, flame-proof filling material special for tunnel sheet pavement, and mass ratio is a coarse aggregate: fine aggregate: pitch: fiber: flame-proof filling material special for tunnel sheet pavement=100: 40: 7: 0.6: 15; Described coarse aggregate is selected diabase for use, and described fine aggregate is selected limestone for use, and described pitch is selected high-viscosity modified asphalt for use, and described fiber is selected polyacrylonitrile fibre for use; Adopt intermittent type pitch batching plant to produce, empty a breeze storehouse before the production, it is stand-by that flame-proof filling material special for tunnel sheet pavement is pumped into the breeze storehouse; Mix and stir when producing at first with coarse aggregate, fine aggregate and blending in of fibers dry mixing 25s, spray into pitch wet-mixing 30s then after, spray into again and get final product after flame-proof filling material special for tunnel sheet pavement continues to mix and stir 30s; Temperature schedule is identical with the plain asphalt concrete production.
Embodiment 4:
A kind of flame-proof filling material special for tunnel sheet pavement, it is made up of limestone breeze, fire retardant matter and modified material, and mass ratio is the limestone breeze: fire retardant matter: modified material=100: 60: 150;
Described fire retardant matter is made up of aluminium hydroxide, magnesium hydroxide, boron flame retardant and synergetic effect additive, and the mass ratio of aluminium hydroxide, magnesium hydroxide, boron flame retardant, synergetic effect additive is 100: 60: 15: 6; Described aluminium hydroxide is selected the above technical grade aluminium hydroxide of 325 orders for use, and described magnesium hydroxide is selected 1250 order industrial magnesium hydroxides for use, and described boron flame retardant is selected barium metaborate for use, and described synergetic effect additive is MoO
3
Described modified material is made up of slaked lime, diatomite and natural zeolite powder, and mass ratio is a slaked lime: diatomite: natural zeolite powder=100: 60: 30.
The preparation of above-mentioned a kind of flame-proof filling material special for tunnel sheet pavement: choose raw material by said ratio, mix and stir, get flame-proof filling material special for tunnel sheet pavement.
Claims (5)
1. flame-proof filling material special for tunnel sheet pavement is characterized in that it is made up of limestone breeze, fire retardant matter and modified material, and mass ratio is the limestone breeze: fire retardant matter: modified material=100: 60～120: 70～150;
Described fire retardant matter is made up of aluminium hydroxide, magnesium hydroxide, boron flame retardant and synergetic effect additive, and the mass ratio of aluminium hydroxide, magnesium hydroxide, boron flame retardant, synergetic effect additive is 100: 60～85: 4～15: 2～6; Described synergetic effect additive is Fe oxide compound, Sb
2O
3, MgO or MoO
3
Described modified material is made up of slaked lime, diatomite and natural zeolite powder, and mass ratio is a slaked lime: diatomite: natural zeolite powder=100: 60～80: 15～30.
2. a kind of flame-proof filling material special for tunnel sheet pavement according to claim 1 is characterized in that: described aluminium hydroxide is selected 325 orders above technical grade aluminium hydroxide or toothpaste level aluminium hydroxide for use.
3. a kind of flame-proof filling material special for tunnel sheet pavement according to claim 1 is characterized in that: described magnesium hydroxide is selected 1250 orders or 2500 order industrial magnesium hydroxides for use.
4. a kind of flame-proof filling material special for tunnel sheet pavement according to claim 1 is characterized in that: described boron flame retardant is selected ammonium borate, borax, zinc borate or barium metaborate for use.
5. a kind of flame-proof filling material special for tunnel sheet pavement according to claim 1 is characterized in that: described Fe oxide compound is FeO, Fe
3O
4Or Fe
2O
3
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100535957A CN100535056C (en) | 2007-10-19 | 2007-10-19 | Flame-proof filling material special for tunnel sheet pavement |
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|---|---|---|---|
| CNB2007100535957A CN100535056C (en) | 2007-10-19 | 2007-10-19 | Flame-proof filling material special for tunnel sheet pavement |
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| CN100535056C true CN100535056C (en) | 2009-09-02 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817983B (en) * | 2009-02-27 | 2013-04-10 | 深圳市海川实业股份有限公司 | Warm mix flame-retardant modified asphalt and preparation method thereof |
| CN102174269B (en) * | 2011-03-21 | 2013-07-17 | 武汉理工大学 | Magnesium-aluminum based layered double hydroxide aging resistant SBS (Styrene-Butadiene-Styrene Block Copolymer) modified asphalt and preparation method thereof |
| CN102757198A (en) * | 2012-08-13 | 2012-10-31 | 吉林中路新材料有限责任公司 | Environment-friendly flaming retarding bituminous mixture and preparation method thereof |
| CN102827489A (en) * | 2012-09-28 | 2012-12-19 | 张宇 | Composition for modification of asphalt |
| CN103214205B (en) * | 2013-04-07 | 2014-09-17 | 浙江大学宁波理工学院 | Chemical erosion-resistant additive of bituminous mixture |
| CN103602082B (en) * | 2013-11-19 | 2016-01-06 | 青岛祥嘉知识产权服务有限公司 | A kind of bitumen flame-proof modifier |
| CN105968729A (en) * | 2016-07-18 | 2016-09-28 | 四川蜀羊防水材料有限公司 | Flame-retardant asphalt material |
| CN107501972B (en) * | 2017-10-16 | 2019-08-30 | 江苏增光复合材料科技有限公司 | A kind of preparation method of high-compatibility suppression cigarette asphalt material |
| CN109749335B (en) * | 2018-12-19 | 2021-06-22 | 青岛科凯达橡塑有限公司 | Flame-retardant asphalt modifier and preparation method thereof |
| CN113604060A (en) * | 2020-12-28 | 2021-11-05 | 武汉理工大学 | Flame-retardant warm-mix modified asphalt and preparation method and application thereof |
| CN116535137A (en) * | 2023-03-27 | 2023-08-04 | 东南大学 | Tunnel pavement mixture with porous steel slag loaded with nano flame retardant and construction method thereof |
| CN116514457A (en) * | 2023-05-23 | 2023-08-01 | 四川公路桥梁建设集团有限公司 | Flame-retardant asphalt mixture and preparation method thereof |
-
2007
- 2007-10-19 CN CNB2007100535957A patent/CN100535056C/en active Active
Non-Patent Citations (8)
| Title |
|---|
| 新型硅藻土改性剂对沥青混合料路用性能的影响. 陈卫峰，高培伟，李小燕，乐建新，金少春.材料科学与工程学报，第25卷第4期. 2007 |
| 新型硅藻土改性剂对沥青混合料路用性能的影响. 陈卫峰，高培伟，李小燕，乐建新，金少春.材料科学与工程学报，第25卷第4期. 2007 * |
| 环境友好型温拌沥青混合料制备技术研究进展. 孙大权，王锡通，汤士良，褚莉花，罗杰.石油沥青，第21卷第4期. 2007 |
| 环境友好型温拌沥青混合料制备技术研究进展. 孙大权，王锡通，汤士良，褚莉花，罗杰.石油沥青，第21卷第4期. 2007 * |
| 硅藻土改性沥青性能研究. 宋艳茹，张玉贞，张兴友，谭忆秋.石油沥青，第21卷第1期. 2007 |
| 硅藻土改性沥青性能研究. 宋艳茹，张玉贞，张兴友，谭忆秋.石油沥青，第21卷第1期. 2007 * |
| 阻燃沥青路面研究新思路. 张厚记.湖北公路交通科技，第14期. 2006 |
| 阻燃沥青路面研究新思路. 张厚记.湖北公路交通科技，第14期. 2006 * |
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Effective date of registration: 20160418 Address after: 430056 Hubei city of Wuhan Province Economic and Technological Development Zone Chunxiao Road No. 6 Patentee after: Wuhan Municipal Construction Group Co., Ltd. Address before: 430070 Hubei Province, Wuhan city Hongshan District Luoshi Road No. 122 Patentee before: Wuhan University of Technology |