CN104529214A - Asphalt modifier, asphalt mixture and preparing methods of asphalt modifier and asphalt mixture - Google Patents
Asphalt modifier, asphalt mixture and preparing methods of asphalt modifier and asphalt mixture Download PDFInfo
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- CN104529214A CN104529214A CN201410844615.2A CN201410844615A CN104529214A CN 104529214 A CN104529214 A CN 104529214A CN 201410844615 A CN201410844615 A CN 201410844615A CN 104529214 A CN104529214 A CN 104529214A
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- Prior art keywords
- asphalt
- modifier
- asphalt modifier
- materials
- mixture
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- 239000010426 asphalt Substances 0.000 title claims abstract description 128
- 239000003607 modifier Substances 0.000 title claims abstract description 50
- 239000000203 mixture Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 8
- 239000004744 fabric Substances 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 238000012545 processing Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 40
- 238000003756 stirring Methods 0.000 claims description 14
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 7
- 229920004933 Terylene® Polymers 0.000 claims description 6
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 6
- 239000004952 Polyamide Substances 0.000 claims description 4
- 229920004935 Trevira® Polymers 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 3
- 239000004753 textile Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 abstract description 7
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000012986 modification Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 abstract description 5
- 230000000051 modifying effect Effects 0.000 abstract description 5
- 238000010008 shearing Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 230000002929 anti-fatigue Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000009661 fatigue test Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010906 discarded clothing Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000012430 stability testing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses an asphalt modifier, an asphalt mixture and preparing methods of the asphalt modifier and the asphalt mixture. The asphalt modifier is made of waste fabric in a processed mode, the maximum nominal grain size of aggregate in the asphalt mixture is set to be r, the length size of the asphalt modifier ranges from 2pir to 4pir, and the cross sectional area of the asphalt modifier is smaller than or equal to 0.01 mm<2>. The asphalt modifier which is made of the waste fabric in the processed mode and has the certain length size is designed according to the fact that the waste fabric has the advantages of being good in elasticity, resistant to shearing, stretching, the high temperature and the low temperature, capable of being dissolved into asphalt and the like based on the coarse aggregate macroscopic binding principle, the modifying effect similar to that of polymer modification agents is achieved in the performance aspect, a direction is provided for large-scale processing of the waste fabric, the applied polymer modification agents are reduced, and the good economic benefits and the good environment-friendly benefits are achieved.
Description
Technical field
The invention belongs to road engineering and environmental protection technical field, be specifically related to a kind of asphalt modifier, asphalt and preparation method thereof.
Background technology
Road field is as traditional resource consumption industry, and especially asphalt roads industry consumes a large amount of petrochemicals every year, comprises the chemical materials such as pitch, polymkeric substance, not only consumes a large amount of natural resources, and creates certain environmental pollution.How to solve asphalt roads development and become with energy-conserving and environment-protective contradiction the problem that the asphalt roads personnel of being engaged at home and abroad that put must solve.
Current waste resource regeneration is the important directions alleviating development and energy-conserving and environment-protective contradiction.China is not only weaving big country, and Ye Shi populous nation, not only consumes a large amount of cotton textiles every year, and produces a large amount of cotton spinning waste products, as the discarded clothes manufactured by cotton, hair, chemical fibre etc.And for these discarded clothes, still there is no the extensive disposal way of science, environmental protection at present both at home and abroad.Can be not difficult to find the material such as cotton, trevira, terylene, polyamide fibre, polyvinyl have good elastoplasticity, high-low temperature resistant, anti-shearing, stretch-proof and with the feature such as bitumen compatibility, to synthesize with pure chemical industry and the polymkeric substance such as SBS, SBR for asphalt modification is quite similar.If the discarded fabric being main component with materials such as cotton, trevira, terylene, polyamide fibre, polyvinyls is applied to asphalt modification, can not only to dissolve on a large scale this kind of discarded fabric, and can for substitute polymkeric substance provider that chemical industry synthesis is used for asphalt modification to.
Therefore, the discarded fabric of research and development one is starting material, and the asphalt modifier that the polymer phase such as modified effect and SBS, SBR is worked as is very necessary, significant, has a far reaching influence.
Summary of the invention
The object of the invention is, a kind of asphalt modifier, asphalt and preparation method thereof are provided, be intended to the contradictory problems solving asphalt roads development and energy-conserving and environment-protective.
The present invention is as follows for solving the problems of the technologies described above adopted technical scheme:
The invention discloses a kind of asphalt modifier, the properties-correcting agent with certain length size that this asphalt modifier is is Raw material processing with discarded fabric, the nominal maximum aggregate size that gathers materials in setting asphalt is r, then the length dimension of described asphalt modifier is within the scope of 2 π r ~ 4 π r, and its cross-sectional area is less than or equal to 0.01mm
2.
Further, the material of described discarded fabric is one or more the combination in cotton textiles, trevira, terylene, polyamide fibre, polyvinyl.
Preferably, the length dimension of described asphalt modifier is distributed in Normal Distribution within the scope of 2 π r ~ 4 π r, and its formula is as follows,
Wherein (μ, σ) parameter according in asphalt aggregate grading design gather materials nominal maximum aggregate size size and maximum sized one grade gather materials proportion data calculate and obtain, x refers to the length of asphalt modifier, μ refers in asphalt nominal maximum aggregate size value of gathering materials, σ refer in asphalt maximum sized one grade gather materials shared by gather materials the ratio value of total amount.
The present invention utilizes above-mentioned asphalt modifier to obtain a kind of asphalt, this asphalt by gathering materials, pitch and described asphalt modifier be prepared from.
Preferably, the mass percent of described asphalt modifier in asphalt is 0.1% ~ 1%.
The present invention also provides the preparation method of described asphalt, and the method comprises the steps:
Step 1, mixes and stirs described asphalt modifier together with gathering materials after heating, and the add-on of described asphalt modifier is 0.1% ~ 1% to calculate according to accounting for quality of asphalt mixtures per-cent;
Step 2, adds pitch in the material after aforementioned mixing and stirring, and prepares described asphalt after continuing to mix and stir.
Preferably, described step 1 medium pitch properties-correcting agent with the time of mixing and stirring of gathering materials is: it is 120 ~ 180s that cylinder is mixed and stirred in indoor, and on-the-spot blending station is 15 ~ 30s.
Compared with prior art, beneficial effect of the present invention is as follows:
1, the asphalt modifier in the present invention is with discarded fabric for starting material, and the polymer phase such as modified effect and SBS, SBR is worked as, and eliminates the shortcoming that the polymer modifiers such as SBS, SBR exist: cost is higher; And consume a large amount of energy, resource in the process of these polymkeric substance of synthesis, and produce the pollution such as waste water, waste gas.
2, the present invention is based on the principle that properties-correcting agent macroscopic view connects two nominal maximum aggregate size coarse aggregates, devise the asphalt modifier of the certain size processed by discarded fabric, not only achieve the modified effect close with polymer modifiers from aspect of performance, and provide direction for discarded fabric of dissolving on a large scale, decrease the application of polymer modifiers, there is good economy, environmental protection double benefit.
3, the present invention refer to the theory of normal distribution, establishes the nominal particle diameter that gathers materials, overall dimension one grade gathers materials the length dimension of ratio and properties-correcting agent, the relation of distribution of sizes.
Embodiment
Below by way of specific embodiment, technical scheme of the present invention is described in detail.
Embodiment 1
Asphalt modifier in the present embodiment will be applied to AC-13C type asphalt, and the nominal maximum aggregate size r that gathers materials is 1.3cm.Properties-correcting agent is the discarded fabric that cotton and terylene composition respectively account for 50%, this discarded fabric is after fabric impact grinder is pulverized and electric screen grader sieves, according to 2 π r ~ 4 π r distribution ranges, the properties-correcting agent length dimension scope control after processing is between 8.16-16.3cm, and diameter is 0.05mm.
The present embodiment, is studied the performance of SBS modified asphalt mixture and asphalt of the present invention for research object with SMA-13 grating asphalt.
SBS modified asphalt mixture is identical with the main raw composition of asphalt of the present invention, see table 1.Gathering materials for mineral aggregate basalt wherein, the per-cent accounting for compound total mass is 94.1%, and pitch is respectively the modifying asphalt adding asphalt modifier in SBS modifying asphalt and the present invention, and the per-cent accounting for compound total mass is 5.9%.Wherein, asphalt modifier consumption accounts for 0.4% of asphalt total mass.
Table 1, asphalt forms
In addition, SBS modified asphalt mixture mixes 0.3% lignin fibre, and asphalt of the present invention does not mix lignin fibre.Asphalt modifier in asphalt of the present invention be cotton and terylene composition respectively account for 50% discarded fabric, size range between 8.16-16.3cm, diameter 0.05mm.According to the grating situation of mineral aggregate, the nominal maximum aggregate size that gathers materials is 1.3cm, overall dimension one grade of ratio of gathering materials is 0.007, therefore size distribution parameter (the μ of asphalt modifier, σ) be (1.3,0.007), the distribution of asphalt modifier length dimension is according to following formulae discovery:
The grating data of asphalt Mineral Material are see table 2.
Table 2, mineral aggregate forms
The preparation of asphalt: SBS modified asphalt mixture adopts the processing method preparation of conventional hot-mix asphalt mixture in prior art.Asphalt of the present invention is then after gathering materials with heat and mixing and stirring 180s, then adds pitch and continue to mix and stir and prepare.Detailed process is: according to the custom requirements of bituminous mixture aggregate heating, heat gathering materials, then by the asphalt modifier prepared in the present invention with heating after gather materials together with mix and stir, the consumption of described asphalt modifier is 0.4% of asphalt total mass; Wherein, asphalt modifier is 180s with the time of mixing and stirring of gathering materials.Finally, in the material after aforementioned mixing and stirring, add pitch, after continuing to mix and stir, prepare described asphalt.
The SBS modified asphalt mixture of preparation and asphalt of the present invention are carried out to both performance comparison respectively by Mashell molding test, water stability testing, thimble test, indirect tensile fatigue test, data results is see table 3-table 6.
Table 3, Mashell molding test specimen contrasts
Table 4, stability of asphalt mixture test result
Table 5, stability at high temperature of asphalt mixture test result
Table 6, the indirect stretching fatigue life test result of compound
Above-mentioned test-results shows: asphalt of the present invention and SBS modified asphalt mixture achieve identical consolidation effect and Marshall Test result.Further, two kinds of compounds also show close performance in water stability, high-temperature stability.In anti-fatigue performance, asphalt of the present invention is better than SBS modified asphalt mixture.
Embodiment 2
The present embodiment is with SMA-13 grating asphalt for research object, and the performance of asphalt of the present invention and routine being discarded fabric asphalt carries out comparative study.
Asphalt of the present invention and routine discard fabric asphalt, gathering materials that these two kinds of asphalts adopt is mineral aggregate basalt, the per-cent accounting for compound total mass is 94.1%, all the other are modifying asphalt, the per-cent accounting for compound total mass is 5.9%, asphalt modifier in modifying asphalt is the discarded fabric of same materials, and the per-cent that discarded fabric accounts for compound total mass is 0.4%.The difference of two kinds of asphalts is: the processing mode of discarded fabric is different.Discarded fabric in asphalt of the present invention is pulverized post-treatment and is become certain line style size, and its length dimension is Normal Distribution within the scope of 2 π r ~ 4 π r and in this data area, and its cross-sectional area is less than or equal to 0.01mm
2, wherein r is the nominal maximum aggregate size that gathers materials in asphalt.Be specially: according to 2 π r ~ 4 π r distribution ranges, the properties-correcting agent length dimension scope control after processing is between 8.16-16.3cm, and diameter is 0.05mm.Length dimension is Normal Distribution between 8.16-16.3cm, and wherein size distribution parameter (μ, σ) is (1.3,0.007).The distribution of asphalt modifier length dimension is according to following formulae discovery:
And the discarded fabric in conventional discarded fabric asphalt is only add after discarded fabric pulverization process in asphalt.Two kinds of asphalts are carried out to both performance comparison by indirect tensile fatigue test, data results is see table 7.
Table 7, the indirect stretching fatigue test result of asphalt
The data results of table 7 shows: in anti-fatigue performance, and asphalt of the present invention is better than conventional discarded fabric asphalt.This is also the principle that the present invention is based on macroscopic view binding coarse aggregate, designs the asphalt modifier being processed certain size by discarded fabric, the technique effect produced, namely more superior on anti-fatigue performance.
Above are only part preferred embodiment of the present invention, the present invention is not limited in the content of embodiment.To those skilled in the art, can have various change and change in the concept of technical solution of the present invention, any change done and change, all within scope.
Claims (7)
1. an asphalt modifier, it is characterized in that: this asphalt modifier with discarded fabric for Raw material processing forms, setting asphalt in the nominal maximum aggregate size that gathers materials be r, the length dimension of described asphalt modifier within the scope of 2 π r ~ 4 π r, its cross-sectional area≤0.01mm
2.
2. asphalt modifier as claimed in claim 1, is characterized in that: the material of described discarded fabric is one or more the combination in cotton textiles, trevira, terylene, polyamide fibre, polyvinyl.
3. asphalt modifier as claimed in claim 1, is characterized in that: the length dimension of described asphalt modifier is distributed in Normal Distribution within the scope of 2 π r ~ 4 π r, and its formula is as follows,
Wherein (μ, σ) parameter according in asphalt aggregate grading design gather materials nominal maximum aggregate size size and maximum sized one grade gather materials proportion data calculate and obtain, x refers to the length of asphalt modifier, μ refers in asphalt nominal maximum aggregate size value of gathering materials, σ refer in asphalt maximum sized one grade gather materials shared by gather materials the ratio value of total amount.
4. an asphalt, is characterized in that: this asphalt by gathering materials, pitch and the asphalt modifier described in any one of claim 1-3 be prepared from.
5. asphalt as claimed in claim 4, is characterized in that: the mass percent of described asphalt modifier in asphalt is 0.1% ~ 1%.
6. the preparation method of asphalt according to claim 4, is characterized in that, the method comprises the steps:
Step 1, mixes and stirs described asphalt modifier together with gathering materials after heating, and the add-on of described asphalt modifier is 0.1% ~ 1% to calculate according to accounting for quality of asphalt mixtures per-cent;
Step 2, adds pitch in the material after aforementioned mixing and stirring, and prepares described asphalt after continuing to mix and stir.
7. the preparation method of asphalt as claimed in claim 6, is characterized in that, described step 1 medium pitch properties-correcting agent with the time of mixing and stirring of gathering materials is: it is 120 ~ 180s that cylinder is mixed and stirred in indoor, and on-the-spot blending station is 15 ~ 30s.
Priority Applications (1)
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|---|---|---|---|
| CN201410844615.2A CN104529214B (en) | 2014-12-26 | 2014-12-26 | A kind of asphalt modifier, asphalt and preparation method thereof |
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| CN201410844615.2A CN104529214B (en) | 2014-12-26 | 2014-12-26 | A kind of asphalt modifier, asphalt and preparation method thereof |
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| CN104529214A true CN104529214A (en) | 2015-04-22 |
| CN104529214B CN104529214B (en) | 2017-03-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2156227C1 (en) * | 1999-01-18 | 2000-09-20 | Военный инженерно-технический университет | Method of preparing asphalt-concrete mix |
| CN102010151A (en) * | 2010-11-02 | 2011-04-13 | 江苏省交通科学研究院股份有限公司 | Asphalt mixture and preparation method thereof |
| CN102491683A (en) * | 2011-11-14 | 2012-06-13 | 长安大学 | Method for preparing mineral cotton fiber and asphalt mixture for roads |
| CN102701650A (en) * | 2012-05-30 | 2012-10-03 | 金陵科技学院 | Reclaimed waste carpet fiber reinforced cement-based composite material, and preparation method and application thereof |
| CN102924002A (en) * | 2012-11-09 | 2013-02-13 | 沈阳建筑大学 | Recycled concrete made of discarded fiber and preparation method thereof |
-
2014
- 2014-12-26 CN CN201410844615.2A patent/CN104529214B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2156227C1 (en) * | 1999-01-18 | 2000-09-20 | Военный инженерно-технический университет | Method of preparing asphalt-concrete mix |
| CN102010151A (en) * | 2010-11-02 | 2011-04-13 | 江苏省交通科学研究院股份有限公司 | Asphalt mixture and preparation method thereof |
| CN102491683A (en) * | 2011-11-14 | 2012-06-13 | 长安大学 | Method for preparing mineral cotton fiber and asphalt mixture for roads |
| CN102701650A (en) * | 2012-05-30 | 2012-10-03 | 金陵科技学院 | Reclaimed waste carpet fiber reinforced cement-based composite material, and preparation method and application thereof |
| CN102924002A (en) * | 2012-11-09 | 2013-02-13 | 沈阳建筑大学 | Recycled concrete made of discarded fiber and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 周静海等: "废弃纤维再生混凝土强度的试验研究", 《混凝土》 * |
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Address after: 7th floor, No.3, Lane 701, chuanqiao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201206 Patentee after: Shanghai Pudong Construction Co.,Ltd. Patentee after: SHANGHAI PUDONG LUQIAO ASPHALT MATERIAL Co.,Ltd. Address before: 200120 Shanghai city Pudong New Area Jialin Road No. 1028 Patentee before: SHANGHAI PUDONG ROAD & BRIDGE CONSTRUCTION Co.,Ltd. Patentee before: SHANGHAI PUDONG LUQIAO ASPHALT MATERIAL Co.,Ltd. |
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Effective date of registration: 20231124 Address after: Room 1401, 8 Yincheng Middle Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200120 Patentee after: Shanghai Pudong Road & Bridge (Group) Co.,Ltd. Address before: 7th floor, No.3, Lane 701, chuanqiao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 201206 Patentee before: Shanghai Pudong Construction Co.,Ltd. Patentee before: SHANGHAI PUDONG LUQIAO ASPHALT MATERIAL Co.,Ltd. |
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