CN103130470A - Warm mix drainage asphalt mixture and preparation method thereof - Google Patents
Warm mix drainage asphalt mixture and preparation method thereof Download PDFInfo
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- CN103130470A CN103130470A CN2011103913465A CN201110391346A CN103130470A CN 103130470 A CN103130470 A CN 103130470A CN 2011103913465 A CN2011103913465 A CN 2011103913465A CN 201110391346 A CN201110391346 A CN 201110391346A CN 103130470 A CN103130470 A CN 103130470A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The invention relates to a warm mix drainage asphalt mixture and a preparation method thereof. The warm mix drainage asphalt mixture and the preparation method are characterized in that 100 parts of building stones are heated to 155 DEG C to 165 DEG C and dropped into a blending jar, 0.10 to 0.20 part of polyethylene paraffin is added in and blended together with the building stones for 5 seconds to 10 seconds, 4 to 5 parts of high-viscosity modified asphalt at the temperature of 165 DEG C to 175 DEG C are added in, and then 2 to 4 parts of cement and 0 to 2 parts of mineral powder are added in and blended together for 45 seconds to 55 seconds, wherein the blending temperature is controlled between 150 DEG C and 160 DEG C. The construction temperature of the warm mix drainage asphalt mixture is 25 DEG C to 30 DEG C lower than that of a normal drainage asphalt mixture. Production, construction power consumption and discharge of the warm mix drainage asphalt mixture are all decreased remarkably. Meanwhile, high-temperature stability is improved by 28%, and water stability and low-temperature crack resistance are both enhanced. The warm mix drainage asphalt mixture is an environmentally friendly road material.
Description
Technical field
The present invention is road engineering medium pitch pavement technique field, is specifically related to a kind of temperature and mixes drainage asphalt mixture and preparation method thereof.
Background technology
Drainage asphalt pavement is to adopt drainage asphalt mixture as upper layer, under it, waterproof layer is set, and penetrates into the water horizontal inflow edge pumping equipment on waterproof layer in the drainage asphalt surface layer, and is penetrated into the road surface of sub-layer no longer downwards.Drainage asphalt pavement can be got rid of rapidly road table ponding, prevents that the rainy day from driving splashing of easily producing, dazzle, water and the phenomenon such as floating, and improves the security that the rainy day drives, simultaneously, drainage asphalt pavement can also effectively reduce Traffic noise, and the adjusting ambient temperature improves the comfortableness of people's trip.Therefore drainage asphalt pavement has application value preferably.
Drainage asphalt mixture adopts stay-in-grade high-viscosity modified asphalt and mineral aggregate etc. to mix and stir and forms, and Design Air Voids is not less than 18% asphalt.Drainage asphalt mixture must adopt high-viscosity modified asphalt, mainly because the drainage asphalt mixture voidage surpasses 18%, a binding site that gathers materials is few, use common SBS modifying asphalt, pavement strength is obviously not enough, and under action of traffic loading, the road surface is easily by compaction deformation, voidage reduced and affect drainage performance, and affecting surface evenness; Simultaneously, common SBS modifying asphalt viscosity is lower, and the asphalt membrane on aggregate particle surface is thinner, and aggregate particle easily comes off, and causes ravelling, and not ageing-resistant, and anti-water damage property is poor.
High-viscosity modified asphalt is that a kind of 60 ℃ of kinetic viscosities are not less than 20,000Pa.s, softening temperature is not less than the high performance modified bitumen of 80 ℃, high-viscosity modified asphalt is applied to drainage asphalt pavement, can not only significantly improve the road surface non-deformability, and also can be improved to pitch and the cohesiveness of gathering materials.High-viscosity modified asphalt is used and has been guaranteed the drainage asphalt pavement performance, but some problems have also been brought, the high temperature viscosity that is mainly high-viscosity modified asphalt has increased, in order to guarantee construction workability and mixture quality, need to improve construction temperature, therefore requiring the building stones Heating temperature of normal discharge asphalt is 190-200 ℃, and the Heating temperature of high-viscosity modified asphalt is 165-175 ℃, and it is 175-185 ℃ that drainage asphalt mixture mixes and stirs temperature.The drainage asphalt mixture space surpasses 18% simultaneously, cause in the mixture construction process temperature to descend too fast, require to increase compaction technology in construction and guarantee compactness, but because the high temperature viscosity of high-viscosity modified asphalt is large, in order to prevent sticking wheel, should not adopt pneumatic-tired rollers again.These problems have increased difficulty of construction, have lowered performance of asphalt mixture, improve simultaneously construction temperature, and corresponding energy consumption is high larger with carbon emission, conflicts mutually with the construction theory of current green low-carbon.These problems have hindered applying of this technology to a certain extent.Therefore for the problem of drainage asphalt pavement, under the prerequisite that guarantees the pavement engineering quality, need to reduce high-viscosity modified asphalt viscosity, reduce construction temperature and difficulty, reduce energy consumption and discharging.
Summary of the invention
The purpose of this invention is to provide a kind of temperature and mix drainage asphalt mixture, overcome defective of the prior art, lower high-viscosity modified asphalt viscosity, reduce construction temperature.
In order to realize this purpose, technical scheme of the present invention is as follows: a kind of temperature is mixed drainage asphalt mixture, by building stones, polyvinyl paraffin wax, high-viscosity modified asphalt, breeze and cement composition, its weight proportion is: 100 parts of building stones, polyvinyl paraffin wax 0.10-0.20 part, high-viscosity modified asphalt 4-5 part, breeze 0-2 part, cement 2-4 part.
Another object of the present invention is to provide a kind of temperature and mixes the drainage asphalt mixture preparation method, overcomes defective of the prior art, lowers high-viscosity modified asphalt viscosity, reduces construction temperature.
In order to realize this purpose, technical scheme of the present invention is as follows: 100 parts of building stones are heated to 155-165 ℃ put into and mix cylinder, then add 0.10-0.20 part polyvinyl paraffin wax to mix and stir 5-10 second, the high-viscosity modified asphalt that adds again 165-175 ℃ of 4-5 part, add again 2-4 part cement and 0-2 part breeze to mix and stir 45-55 second, mix and stir temperature and be controlled at 150-160 ℃.
The present invention reduces the production and construction temperature by adding polyvinyl paraffin wax, improves the compound high-temperature stability, the fusing point of polyvinyl paraffin wax is 100 ℃ of left and right, in molten asphalt, reduce the high temperature viscosity of pitch fully, thereby reduce mixing and stirring and compacting temperature of asphalt.In addition, polyvinyl paraffin wax can also increase low temperature (60 ℃) viscosity of pitch, temperature can be in pitch during lower than fusing point the webbed crystalline network of shape, increase the stability of pitch, improve the anti-rut performance of road surface in the use temperature scope.By adding cement, improve the adsorptive power to pitch, strengthen water stability and the low-temperature cracking-resistance of drainage compound.
The temperature of the present invention's preparation is mixed drainage asphalt mixture and is reduced 25-30 ℃ with respect to normal discharge asphalt construction temperature, production and construction energy consumption and discharging that temperature is mixed drainage asphalt mixture all significantly reduce, high-temperature stability improves 28% simultaneously, and water stability and low-temperature cracking-resistance also all increase and improve.
Embodiment
Raw material of the present invention is marketable material, and is specific as follows:
(1) building stones: diabase or basalt building stones, apparent relative density are greater than 2.6, and building stones are particulate state, and this grain diameter is less than 16mm, and according to preferred embodiment, the grating granulometric composition of building stones should meet the regulation of table 1.
The grating granulometric composition of table 1 building stones
(2) warm-mixing agent: polyvinyl paraffin wax, molecular weight 3500-5500, fusing point are 100-115 ℃.
(3) high-viscosity modified asphalt: 60 ℃ of viscosity are greater than 20000Pa.s, and softening temperature is greater than 80 ℃, as China Petrochemical Industry's East Sea board high-viscosity modified asphalt, the SH ELL of Shell Co. Ltd high-viscosity modified asphalt etc.
(4) breeze: limestone breeze, apparent density are greater than 2.5t/m3, and the particle diameter of breeze is less than 0.075mm.
(5) cement: 42.5 grades of silicate cements.
Raw material of the present invention forms (weight): 100 parts of building stones; Polyvinyl paraffin wax 0.10-0.20 part; High-viscosity modified asphalt 4-5 part; Breeze 0-2 part; Cement 2-4 part.According to preferred embodiment, when breeze adopted 0-0.5 part, cement adopted 3-4 part, and breeze adopts 0.5-2 part, and cement is 2-3.5 part.
Preparation method of the present invention is: will be heated to the building stones of 155-165 ℃ and put in proportion and mix cylinder, then add polyvinyl paraffin wax to mix and stir 5-10 second, add in proportion again the high-viscosity modified asphalt of 165-175 ℃, add again cement and breeze to mix and stir 45-55 second, mix and stir temperature and be controlled at 150-160 ℃.
According to the first embodiment of the present invention, by weight, get 100 parts of building stones; 0.10 part of polyvinyl paraffin wax; 4 parts of China Petrochemical Industry's East Sea board high-viscosity modified asphalts; 3 parts of cement are put into the building stones that are heated to 155 ℃ and are mixed cylinder, then add polyvinyl paraffin wax to mix and stir 5 seconds, the high-viscosity modified asphalt that adds again 165 ℃, add again cement to mix and stir 45 seconds, mix and stir temperature and be controlled at 150-160 ℃, make temperature of the present invention and mix drainage asphalt mixture.
According to a second embodiment of the present invention, by weight, get 100 parts of building stones; 0.20 part of polyvinyl paraffin wax; 5 parts of China Petrochemical Industry's East Sea board high-viscosity modified asphalts; 2 parts of breezes; 2 parts of cement are put into the building stones that are heated to 165 ℃ and are mixed cylinder, then add polyvinyl paraffin wax to mix and stir 10 seconds, the high-viscosity modified asphalt that adds again 175 ℃, add again cement to mix and stir 55 seconds, mix and stir temperature and be controlled at 150-160 ℃, make temperature of the present invention and mix drainage asphalt mixture.
A third embodiment in accordance with the invention by weight, is got 100 parts of building stones; 0.15 part of polyvinyl paraffin wax; 4.5 parts of China Petrochemical Industry's East Sea board high-viscosity modified asphalts; 1 part of breeze; 3 parts of cement are put into the building stones that are heated to 160 ℃ and are mixed cylinder, then add polyvinyl paraffin wax to mix and stir 8 seconds, the high-viscosity modified asphalt that adds again 170 ℃, add again cement to mix and stir 50 seconds, mix and stir temperature and be controlled at 150-160 ℃, make temperature of the present invention and mix drainage asphalt mixture.
A fourth embodiment in accordance with the invention by weight, is got 100 parts of building stones; 0.20 part of polyvinyl paraffin wax; 5 parts of the SHELL of Shell Co. Ltd high-viscosity modified asphalts; 0.5 part of breeze; 3.5 parts of cement are put into the building stones that are heated to 160 ℃ and are mixed cylinder, then add polyvinyl paraffin wax to mix and stir 10 seconds, the high-viscosity modified asphalt that adds again 170 ℃, add again cement to mix and stir 55 seconds, mix and stir temperature and be controlled at 150-160 ℃, make temperature of the present invention and mix drainage asphalt mixture.
According to a fifth embodiment of the invention, by weight, get 100 parts of building stones; 0.20 part of polyvinyl paraffin wax; 4.8 parts of the SH ELL of Shell Co. Ltd high-viscosity modified asphalts; 1.5 parts of breezes; 2.5 parts of cement are put into the building stones that are heated to 165 ℃ and are mixed cylinder, then add polyvinyl paraffin wax to mix and stir 10 seconds, the high-viscosity modified asphalt that adds again 175 ℃, add again cement to mix and stir 55 seconds, mix and stir temperature and be controlled at 150-160 ℃, make temperature of the present invention and mix drainage asphalt mixture.
According to a sixth embodiment of the invention, by weight, get 100 parts of building stones; 0.20 part of polyvinyl paraffin wax; 5 parts of the SHELL of Shell Co. Ltd high-viscosity modified asphalts; 4 parts of cement are put into the building stones that are heated to 165 ℃ and are mixed cylinder, then add polyvinyl paraffin wax to mix and stir 10 seconds, the high-viscosity modified asphalt that adds again 175 ℃, add again cement to mix and stir 55 seconds, mix and stir temperature and be controlled at 150-160 ℃, make temperature of the present invention and mix drainage asphalt mixture.
Mix the drainage asphalt mixture performance for checking temperature of the present invention, and contrast normal discharge performance of asphalt mixture, carry out respectively high-temperature stability wheel tracking test, water stability freeze thawing split test and anti-low-temperature cracking bending test, wherein normal discharge asphalt preparation: will be heated to the building stones of 190 ℃ and put in proportion and mix cylinder, dry mixing 5-10 second, the high-viscosity modified asphalt that adds in proportion 165-175 ℃ adds breeze to mix and stir 45-55 second.Mix and stir temperature and be controlled at 175-185 ℃.
The high-temperature stability wheel tracking test is according to JTJ 052-2000, and T 0719-1993 carries out, and the test-results average sees Table 1.
Table 1 high-temperature stability wheel tracking test result
Water stability freeze thawing split test is according to JTJ 052-2000, and T 0729-2000 carries out, and the test-results average sees Table 2.
Table 2 water stability freeze thawing split test result
Low temperature is curved draws cracking test according to JTJ 052-2000, and T 0715-1993 carries out, and the test-results average sees Table 3.
The curved cracking test result of drawing of table 3 low temperature
Table 1 test-results shows, with respect to 5026 times/mm of normal discharge asphalt dynamic stability, it is 6480 times/mm that temperature of the present invention is mixed the drainage asphalt mixture dynamic stability, illustrate that temperature mixes the drainage asphalt mixture rutting resistance and strengthen, high-temperature stability obviously improves, and more can satisfy summer high temperature and the requirement of heavy duty to the drainage road performance.
Table 2 test-results shows, with respect to the normal discharge asphalt, before and after temperature of the present invention is mixed the freeze thawing of drainage asphalt mixture, cleavage strength all increases with the freeze thawing Ratio of split strength, illustrates that temperature mixes the enhancing of drainage asphalt mixture water stability.
Table 3 test-results shows, with respect to the normal discharge asphalt, the stiffness modulus that temperature of the present invention is mixed drainage asphalt mixture reduces, and breaking strain improves, and illustrate that temperature mixes the drainage asphalt mixture low temperature flexibility and strengthen, the splitting resistance improvement.
Temperature of the present invention is mixed drainage asphalt mixture and is had obvious technical characterstic:
(1) building stones Heating temperature of the present invention is 155-165 ℃, with respect to conventional material, reduces by 30 ℃ of left and right; Temperature is mixed drainage asphalt mixture, and to mix and stir temperature be 150-160 ℃, with respect to conventional material, mixes and stirs temperature and reduce 25-30 ℃.Temperature of the present invention is mixed drainage asphalt mixture and is reduced construction temperature, reduces difficulty of construction, reduced energy consumption and carbon emission, so the present invention is a kind of road-making material of environmental protection.
(2) with respect to the normal discharge asphalt, the rutting resistance of material of the present invention improves greatly, and high-temperature stability obviously strengthens, and water stability and crack resistance at low-temperature also make moderate progress and improve simultaneously.In general, the pavement performance of material each side of the present invention strengthens, and more can satisfy the requirement of vehicular load and climate temperature, has improved the drainage asphalt pavement road quality.
Claims (7)
1. a temperature is mixed drainage asphalt mixture, by building stones, polyvinyl paraffin wax, high-viscosity modified asphalt, breeze and cement composition, its weight proportion is: 100 parts of building stones, polyvinyl paraffin wax 0.10-0.20 part, high-viscosity modified asphalt 4-5 part, breeze 0-2 part, cement 2-4 part.
2. temperature according to claim 1 is mixed drainage asphalt mixture, it is characterized in that building stones are diabase or basalt, and building stones are particulate state, and grain diameter is less than 16mm.
3. temperature according to claim 1 is mixed drainage asphalt mixture, and the molecular weight that it is characterized in that polyvinyl paraffin wax is 3500-5500, and fusing point is 100-115 ℃.
4. temperature according to claim 1 is mixed drainage asphalt mixture, it is characterized in that 60 ℃ of viscosity of high-viscosity modified asphalt greater than 20000Pa.s, and softening temperature is greater than 80 ℃.
5. temperature according to claim 1 is mixed drainage asphalt mixture, it is characterized in that breeze is the limestone breeze.
6. temperature according to claim 1 is mixed drainage asphalt mixture, it is characterized in that cement is 42.5 grades of silicate cements.
7. a temperature is mixed the drainage asphalt mixture preparation method, it is characterized in that the preparation method is: 100 parts of building stones are heated to 155-165 ℃ put into and mix cylinder, then add 0.10-0.20 part polyvinyl paraffin wax to mix and stir 5-10 second, the high-viscosity modified asphalt that adds again 165-175 ℃ of 4-5 part, add again 2-4 part cement and 0-2 part breeze to mix and stir 45-55 second, mix and stir temperature and be controlled at 150-160 ℃.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103913465A CN103130470A (en) | 2011-11-30 | 2011-11-30 | Warm mix drainage asphalt mixture and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011103913465A CN103130470A (en) | 2011-11-30 | 2011-11-30 | Warm mix drainage asphalt mixture and preparation method thereof |
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| CN103130470A true CN103130470A (en) | 2013-06-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133749A (en) * | 2018-09-29 | 2019-01-04 | 上海市政工程设计研究总院（集团）有限公司 | A kind of environmental flexible sawdust ground surface material |
| CN112919853A (en) * | 2021-04-21 | 2021-06-08 | 漳州新立基沥青有限公司 | Asphalt mixture for drainage and preparation method thereof |
| CN115677273A (en) * | 2022-11-10 | 2023-02-03 | 山东汇通建设集团有限公司 | Foam modified asphalt warm-mixing mixture and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001019852A (en) * | 1999-07-06 | 2001-01-23 | Taiyu Kensetsu Co Ltd | Asphalt composition, mixture and its production |
| CN1891759A (en) * | 2005-06-27 | 2007-01-10 | 韩水自然与技术株式会社 | Asphalt composition containing asphalt modifier enhancing viscosity and drainage |
| CN101244911A (en) * | 2008-01-16 | 2008-08-20 | 武汉理工大学 | Drainage asphalt mixture material composition design method |
| WO2010107134A1 (en) * | 2009-03-18 | 2010-09-23 | Taiyu Kensetsu Co., Ltd. | Asphalt modifier, asphalt composition, asphalt mixture, and methods for producing them |
| CN102092988A (en) * | 2009-12-09 | 2011-06-15 | 中国石油天然气股份有限公司 | Warm-mixed asphalt mixture and preparation method thereof |
-
2011
- 2011-11-30 CN CN2011103913465A patent/CN103130470A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001019852A (en) * | 1999-07-06 | 2001-01-23 | Taiyu Kensetsu Co Ltd | Asphalt composition, mixture and its production |
| CN1891759A (en) * | 2005-06-27 | 2007-01-10 | 韩水自然与技术株式会社 | Asphalt composition containing asphalt modifier enhancing viscosity and drainage |
| CN101244911A (en) * | 2008-01-16 | 2008-08-20 | 武汉理工大学 | Drainage asphalt mixture material composition design method |
| WO2010107134A1 (en) * | 2009-03-18 | 2010-09-23 | Taiyu Kensetsu Co., Ltd. | Asphalt modifier, asphalt composition, asphalt mixture, and methods for producing them |
| CN102092988A (en) * | 2009-12-09 | 2011-06-15 | 中国石油天然气股份有限公司 | Warm-mixed asphalt mixture and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 徐亦航: "排水性沥青路面技术性能研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 杨树人: "温拌添加剂对沥青和沥青混合料性能的影响", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133749A (en) * | 2018-09-29 | 2019-01-04 | 上海市政工程设计研究总院（集团）有限公司 | A kind of environmental flexible sawdust ground surface material |
| CN112919853A (en) * | 2021-04-21 | 2021-06-08 | 漳州新立基沥青有限公司 | Asphalt mixture for drainage and preparation method thereof |
| CN115677273A (en) * | 2022-11-10 | 2023-02-03 | 山东汇通建设集团有限公司 | Foam modified asphalt warm-mixing mixture and preparation method thereof |
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Application publication date: 20130605 |