CN108373291A - Asphalt of fiber and preparation method thereof is inspired confidence in a kind of incorporation North America - Google Patents
Asphalt of fiber and preparation method thereof is inspired confidence in a kind of incorporation North America Download PDFInfo
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- CN108373291A CN108373291A CN201810107021.1A CN201810107021A CN108373291A CN 108373291 A CN108373291 A CN 108373291A CN 201810107021 A CN201810107021 A CN 201810107021A CN 108373291 A CN108373291 A CN 108373291A
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- China
- Prior art keywords
- asphalt
- north america
- fiber
- confidence
- heated
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B26/00—Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
- C04B26/02—Macromolecular compounds
- C04B26/26—Bituminous materials, e.g. tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
Abstract
The present invention discloses a kind of incorporation North America and inspires confidence in high performance asphalt of fiber and preparation method thereof, and by percentage to the quality, the mixture includes following composition：Fiber 0.276% ~ 0.344% is inspired confidence in SBS modified pitch 5.579%~5.824%, mineral aggregate 94.176% ~ 94.421%, North America；Preparation method is as follows：It will first gather materials and be put into baking oven, and be heated to 180 DEG C or more and keep constant temperature；180 DEG C of pot or more is mixed in heating in advance；It will prepared thickness be gathered materials in proportion and fiber mix 120s or more in mix pot is inspired confidence in North America, it adds and is pre-heated to 160 DEG C of 120 ~ 180s of SBS modified pitch mixs, it is eventually adding and is pre-heated to 160 DEG C of miberal powder mix 90s, be prepared into the North America and inspire confidence in Fiber Asphalt Mixture.Fiber is inspired confidence in asphalt incorporation North America, can increase substantially the anti-fatigue performance of asphalt.
Description
Technical field
The invention belongs to road engineering material, road maintenance technical field, the drip of fiber is inspired confidence in especially a kind of incorporation North America
Green mixture and preparation method thereof.
Background technology
With the continuous development of China's economy, the road construction career development in China is rapid.Bituminous paving is using process
In, the temperature stress generated by the repeated action and temperature cycles of vehicular load acts on, and is chronically at ess-strain and becomes repeatedly
The state of change.As number increases, pavement structural strength is gradually weak, fatigue rupture occurs, crack occurs in road surface.
In recent years, fiber is mixed in asphalt to improve the cracking resistance of asphalt, is to improve asphalt road
The major measure of the antifatigue cracking in face.North America inspires confidence in that fibre property is excellent, but in the practical application in China, inspires confidence in fiber to North America
Using the application system of neither one maturation, in practice inspiring confidence in how just can North America, fiber using effect is best, this is China
The problem that present road worker is considered.
Invention content
The purpose of the present invention is to propose to the asphalts and preparation method thereof that fiber is inspired confidence in a kind of incorporation North America, can be significantly
The anti-fatigue performance of asphalt concrete pavement is improved, road maintenance number is reduced, extends its service life.
The purpose of the present invention is what is be achieved through the following technical solutions：The asphalt of fiber is inspired confidence in a kind of incorporation North America,
By percentage to the quality, including as follows it forms：SBS modified pitch 5.579%~5.824%, mineral aggregate 94.176%~
94.421%, fiber 0.276%~0.344% is inspired confidence in North America.
Further, it is 3~6mm, 5 μm of diameter, 2300~3500Mpa of tensile strength that fibre length is inspired confidence in North America.
Further, mineral aggregate includes that thickness is gathered materials and miberal powder, miberal powder account for the 7% of mineral aggregate gross mass；Wherein, thickness gather materials by
No. 1 different material of grain size, No. 2 material, No. 4 material form in proportion, and No. 1 material grain size is 10~20mm, and No. 2 material grain sizes are 5~10mm,
No. 4 material grain sizes be less than 3mm, No. 1 material, No. 2 material, No. 4 material respectively mineral aggregate gross mass 41%, 32%, 20%；Miberal powder is that granularity is
The limestone that 0.075mm or less is levigate.
Further, the asphalt of fiber is inspired confidence in using SMA-13 framework compact types interruption grade in the incorporation North America
Match.
The asphalt preparation method of fiber is inspired confidence in a kind of incorporation North America, includes the following steps：
(1) first thickness is gathered materials and is put into baking oven, be heated to 180 DEG C or more and keep constant temperature；
(2) fiber and pre-heated thickness are inspired confidence in North America to gather materials the mix 120s or more in mix pot, adds and is pre-heated to
160 DEG C of SBS modified pitch 120~180s of mix are eventually adding and are pre-heated to 160 DEG C of miberal powder mix 90s, are prepared into described
North America inspire confidence in Fiber Asphalt Mixture.
Compared with current material, the present invention has the following advantages：
The asphalt of fiber is inspired confidence in incorporation North America of the present invention, and the antifatigue of asphalt can be significantly increased
Performance extends the service life of pavement material.
Description of the drawings
Fig. 1 is the fatigue strength test figure of mixture prepared by the embodiment of the present invention 1 and comparative example 1.
Fig. 2 is the accumulative Dissipated energy result figure of mixture prepared by the embodiment of the present invention 2 and comparative example 2.
Specific implementation mode
With reference to specific implementation case arrange to it is of the present invention it is a kind of incorporation North America inspire confidence in fiber asphalt and its
Preparation method is described further.
The present invention mentality of designing be：
Basalt fiber products type on the market is abundant, and fibre length is inspired confidence in for 3~6mm, directly in the Changsha North America that the present invention uses
5 μm, 2300~3500Mpa of tensile strength of diameter is in cotton-shaped, is easy to be uniformly mixed in asphalt, is conducive to construction, and economy
Cost is relatively low.
Embodiment 1：
It will first gather materials and be put into baking oven, and be heated to 180 DEG C or more and keep constant temperature；It is thick to incite somebody to action prepared 1224.684g in proportion
Fine aggregate (wherein No. 1 material, No. 2 material, No. 4 quality expected are respectively 502.120g, 391.899g, 244.937g) and 3.674g
North America, which is inspired confidence in fiber while being added in 180 DEG C of heating or more mix pot in advance, carries out dry mixing, and the time is no less than 120s；By what is heated
74.706g pitches are added in mix pot, and 120~180s is mixed in rewetting；The 85.728g miberal powders heated mix 90s again, is always mixed
The conjunction time is no less than 300s；Forming temperature is not less than 170 DEG C, is prepared into the North America of mixing and inspires confidence in Fiber Asphalt Mixture.It is described
It is 6.1% that asphalt, which uses SMA-13 framework compact type gap gradings, pitch bitumen aggregate ratio,.
Embodiment 2：
It will first gather materials and be put into baking oven, and be heated to 180 DEG C or more and keep constant temperature；It is thick to incite somebody to action prepared 11864.462g in proportion
Fine aggregate (wherein No. 1 material, No. 2 material, No. 4 material quality be respectively 4864.429g, 3796.628g, 2372.892g) with
The North America of 35.593g, which is inspired confidence in fiber while being added in 180 DEG C of heating or more mix pot in advance, carries out dry mixing, and the time is no less than 120s；
The 723.732gSBS pitches heated are added in mix pot, 120~180s is mixed in rewetting；The 830.512g mines heated
Mix 90s, total duration of mixing are no less than 300s to powder again；It is prepared into the North America of mixing and inspires confidence in Fiber Asphalt Mixture.The pitch
It is 6.1% that mixture, which uses SMA-13 framework compact type gap gradings, pitch bitumen aggregate ratio,.
Inspire confidence in high performance asphalt and 1 institute of comparative example of fiber in a kind of incorporation North America described in case study on implementation 1 of the present invention
The other types asphalt Marshall Test stated is as a result, as shown in table 1.
Inspire confidence in high performance asphalt and 2 institute of comparative example of fiber in a kind of incorporation North America described in case study on implementation 2 of the present invention
The other types Asphalt Mixtures Fatigue Properties stated, such as table 2, shown in Fig. 1-2.
Comparative example 1：
The preparation method of above-mentioned SBS modified asphalt mixtures, includes the following steps：
(1) it will first gather materials and be put into baking oven, and be heated to 180 DEG C or more and keep constant temperature；
(2) 180 DEG C of pot or more is mixed in heating in advance；
(3) gather materials what is preheated to be added simultaneously in mix pot with lignin fibre and carry out dry mixing in proportion, the time is no less than
120s；
(4) pitch heated is added in mix pot, 120~180s is mixed in rewetting；
(5) mix 90s, total duration of mixing are no less than 300s to the miberal powder heated again；
(6) forming temperature is not less than 170 DEG C.
Comparative example 2：
The preparation method of above-mentioned SBS modified asphalt mixtures, includes the following steps：
(1) it will first gather materials and be put into baking oven, and be heated to 180 DEG C or more and keep constant temperature；
(2) 180 DEG C of pot or more is mixed in heating in advance；
(3) gather materials what is preheated to be added simultaneously in mix pot with lignin fibre and carry out dry mixing in proportion, the time is no less than
120s；
(4) pitch heated is added in mix pot, 120~180s is mixed in rewetting；
(5) mix 90s, total duration of mixing are no less than 300s to the miberal powder heated again；
(6) forming temperature is not less than 170 DEG C.
1 Marshall Test Comparative result of table
| Mix type | Stability/kN | Flow valuve/mm | Voidage/% |
| SMA-13+ inspires confidence in fiber in North America | 10.41 | 3.62 | 4.2 |
| SMA-13+ lignin fibres | 9.68 | 3.88 | 4.3 |
2 anti-fatigue performance of table compares
It is obtained by table 1, the Marshall Test result stability of fiber SMA-13 asphalts is inspired confidence in compared to incorporation in incorporation North America
Lignin fibre gets a promotion, and flow valuve and voidage decline.
It is obtained by table 2 and Fig. 1-2, at 450 μ ε, 650 μ ε, 850 μ ε, fiber SMA-13 asphalts are inspired confidence in incorporation North America
Fatigue strength and accumulative Dissipated energy compared to incorporation lignin fibre promoted amplitude it is larger, to the fatigue behaviour of asphalt
Improvement becomes apparent from.
Example provided above describes the invention in detail introduction, but the present invention is not limited to above-mentioned specific implementation realities
Example, all any changes or modifications done based on the present invention belong to the scope of protection of present invention.
Claims (7)
1. the asphalt of fiber is inspired confidence in a kind of incorporation North America, which is characterized in that by percentage to the quality, including form as follows：
Fiber 0.276% ~ 0.344% is inspired confidence in SBS modified pitch 5.579%~5.824%, mineral aggregate 94.176% ~ 94.421%, North America.
2. asphalt as described in claim 1, which is characterized in that it is 3 ~ 6mm that fibre length is inspired confidence in North America, and 5 μm of diameter resists
2300 ~ 3500Mpa of tensile strength.
3. asphalt as described in claim 1, which is characterized in that mineral aggregate includes that thickness is gathered materials and miberal powder, miberal powder account for mine
Expect the 7% of gross mass.
4. asphalt as claimed in claim 3, which is characterized in that thickness is gathered materials by No. 1 different material of grain size, No. 2 material
Formed in proportion with No. 4 material, No. 1 material grain size be 10 ~ 20mm, No. 2 material grain sizes be 5 ~ 10mm, No. 4 material grain sizes be less than 3mm, No. 1
Material, No. 2 material, No. 4 material account for 41%, 32%, the 20% of mineral aggregate gross mass respectively.
5. asphalt as claimed in claim 3, which is characterized in that miberal powder is that granularity is the levigate stones of 0.075mm or less
Limestone.
6. asphalt as described in claim 1, which is characterized in that the asphalt is close using SMA-13 skeletons
Full mold gap grading.
7. the preparation method of the asphalt as described in claim 1-6 is any, it is characterised in that you, include the following steps：
（1）First thickness is gathered materials and is heated to 180 DEG C or more and keeps constant temperature；
（2）Fiber and pre-heated thickness are inspired confidence in North America to gather materials the mix 120s or more in mix pot, adds and is pre-heated to
160 DEG C of SBS modified pitch 120 ~ 180s of mix are eventually adding and are pre-heated to 160 DEG C of miberal powder mix 90s, are prepared into described
North America inspire confidence in Fiber Asphalt Mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107021.1A CN108373291A (en) | 2018-02-02 | 2018-02-02 | Asphalt of fiber and preparation method thereof is inspired confidence in a kind of incorporation North America |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810107021.1A CN108373291A (en) | 2018-02-02 | 2018-02-02 | Asphalt of fiber and preparation method thereof is inspired confidence in a kind of incorporation North America |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108373291A true CN108373291A (en) | 2018-08-07 |
Family
ID=63017201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810107021.1A Pending CN108373291A (en) | 2018-02-02 | 2018-02-02 | Asphalt of fiber and preparation method thereof is inspired confidence in a kind of incorporation North America |
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| CN (1) | CN108373291A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947331A (en) * | 2018-08-08 | 2018-12-07 | 泰州学院 | A kind of open gradation lignin fibre asphalt and preparation method thereof |
| CN111718155A (en) * | 2020-06-11 | 2020-09-29 | 扬州大学 | Asphalt mixture doped with basalt fibers and lignin fibers |
| CN113511841A (en) * | 2021-04-19 | 2021-10-19 | 江苏绿材谷新材料科技发展有限公司 | Asphalt mixture doped with flocculent basalt fibers |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859191A (en) * | 2016-04-08 | 2016-08-17 | 扬州大学 | Composite modified asphalt mixture with high fatigue cracking resistance |
| CN106592369A (en) * | 2016-12-05 | 2017-04-26 | 扬州大学 | Highway heavy load asphalt pavement |
| CN107188461A (en) * | 2017-06-02 | 2017-09-22 | 扬州大学 | Inspire confidence in the preparation method of basalt fibre water-permeating pitch mixed material in a kind of incorporation North America |
| CN107265926A (en) * | 2017-06-02 | 2017-10-20 | 扬州大学 | Inspire confidence in basalt fibre water-permeating pitch mixed material in one kind incorporation North America |
| CN107445518A (en) * | 2017-07-24 | 2017-12-08 | 扬州大学 | Grading basalt fibre asphalt of high fatigue resistance and preparation method thereof |
-
2018
- 2018-02-02 CN CN201810107021.1A patent/CN108373291A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105859191A (en) * | 2016-04-08 | 2016-08-17 | 扬州大学 | Composite modified asphalt mixture with high fatigue cracking resistance |
| CN106592369A (en) * | 2016-12-05 | 2017-04-26 | 扬州大学 | Highway heavy load asphalt pavement |
| CN107188461A (en) * | 2017-06-02 | 2017-09-22 | 扬州大学 | Inspire confidence in the preparation method of basalt fibre water-permeating pitch mixed material in a kind of incorporation North America |
| CN107265926A (en) * | 2017-06-02 | 2017-10-20 | 扬州大学 | Inspire confidence in basalt fibre water-permeating pitch mixed material in one kind incorporation North America |
| CN107445518A (en) * | 2017-07-24 | 2017-12-08 | 扬州大学 | Grading basalt fibre asphalt of high fatigue resistance and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108947331A (en) * | 2018-08-08 | 2018-12-07 | 泰州学院 | A kind of open gradation lignin fibre asphalt and preparation method thereof |
| CN111718155A (en) * | 2020-06-11 | 2020-09-29 | 扬州大学 | Asphalt mixture doped with basalt fibers and lignin fibers |
| CN113511841A (en) * | 2021-04-19 | 2021-10-19 | 江苏绿材谷新材料科技发展有限公司 | Asphalt mixture doped with flocculent basalt fibers |
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Application publication date: 20180807 |
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