CN1963023A - Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal - Google Patents
Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal Download PDFInfo
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- CN1963023A CN1963023A CN 200510100929 CN200510100929A CN1963023A CN 1963023 A CN1963023 A CN 1963023A CN 200510100929 CN200510100929 CN 200510100929 CN 200510100929 A CN200510100929 A CN 200510100929A CN 1963023 A CN1963023 A CN 1963023A
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Abstract
The invention discloses a sealer which prepared by special-shaped section hollow polymer fiber reinforced emulsified asphalt slurry and it comprises of regular emulsified asphalt slurry sealer and special-shaped section single hole or porous polymer. Among them, the content of special-shaped section single whole or porous polymer is 0.1-0.3% of the total weight of bitumen slurries mixture. The polymer fibers are polyester fibers, polyacrylic fiber or polyamide fiber, or mixed fiber comprised of said fibers in causal proportion. The 'special-shaped section' of polymer fibers is the lateral section of fibers which could be regular or irregular geometric shapes, for example, cross-shaped, trilobular, well-shaped, star-shaped, quincunx etc. The 'hollow'' means the fiber is not solid, but with one or more holes structure along the axis. The special-shaped section hollow polymer fiber reinforced emulsified asphalt slurry sealer has many advantages, such as fine toughness, and it does not occur cracks, local decortication and breakage easily. It can be applied to maintenance and conservation of various levels of road widely, especially the high-grade highways, ordinary roads which asphalt pavement is in larger deformation, large communications, heavy communications and other engineering areas.
Description
Technical field
The present invention relates to a kind of emulsified asphalt slurry seal, especially a kind of admixture the emulsified asphalt slurry seal of polymer fiber.
Background technology
Highway communication is the indispensable infrastructure of contemporary economic society high speed development, and its performance and quality often produce influence closely to social life.Because the not good traffic accident that causes of highway performance, frequent maintenance tend to cause traffic jam, hinder socio-economic development.How to delay the aging of flexible pavement, the control pavement crack increases the service life, and is the important topic that present road maintenance department faces.Need to update the performance of highway maintenance material for this reason, promote the use of new material.
Emulsified asphalt slurry seal is a kind of pavement maintenance technology that develops rapidly in recent years, be to make aggregate with the grating aggregate chips or the sand of particulate formula, with the mulseal is binding material, the uniform slurry mixture of making behind the filled cold mixing by a certain percentage, and thickness on request and width pave on the road surface.Pitch table place thin layer after this paving is called for short slurry seal again.
Slurry seal has that speed of application is fast, compactness is high, adhesion is strong, uses manpower and material resources sparingly, pollution-free, prolong construction seasons, advantage such as good in economic efficiency,
But increase along with making slurry seal practice in recent years, it is found that slurry seal relies on pitch as binder merely, the making aftershaping time is long, early strength is low, close traffic maintenance difficulty, high temperature season are easily softening, and the opposing permanent deformation is low, poor durability, these shortcomings can not satisfy big traffic, heavy traffic and the big demand of common road flexible pavement distortion.
Summary of the invention
The technical issues that need to address of the present invention are to overcome the shortcoming that above-mentioned traditional slurry seal has, and a kind of good toughness is provided, is difficult for producing crack, local decortication and damaged a kind of improved slurry seal.
The present invention discloses a kind of profiled-cross-section hollow polymer fiber and strengthens emulsified asphalt slurry seal for this reason, and it is fibrous by the emulsified asphalt slurry seal of routine and profiled-cross-section single hole or porous polymer.Wherein, the content of profiled-cross-section single hole or porous polymeric fibres is 0.1～0.3% of bitumen slurries compound gross weight.Polymer fiber can be polyester fiber, polyacrylonitrile fibre or Fypro, or the assorted fibre of being made up of arbitrarily these fibers.
" profiled-cross-section " of polymer fiber is meant that the cross section of fiber can be any regular or irregular geometry, for example cross, trilobal, groined type, star, quincunx etc." hollow " is meant that this fiber is not solid, but the structure in one or more holes is arranged vertically.
Preparing the equipment that profiled-cross-section hollow polymer fiber of the present invention strengthens the polymer modification emulsified asphalt slurry seal, can be common slurry seal mixer, and the preparation method comprises the steps:
To start agitator and stir 30～60 seconds through aggregate, sand and the fiber paver vehicle sand hopper storehouse of proportionally packing into of screening, fiber and sand pass through discharging after the dry mixing by a certain percentage, take preparation technology's preparation of common slurry seal to get final product then.
Beneficial effect of the present invention depends primarily on the good oil absorbency that the profiled-cross-section hollow polymer fiber is had.Following table is that the performance of profiled-cross-section porous polyester fiber and other several fibers compares:
The performance of several fibers relatively
| Kinds of fibers | The conventional polyester fiber | The single hole polyester fiber | Profiled-cross-section porous polyester fiber | |
| Fibre number (dtex) | 10 | 10 | 10 | |
| Fusing point (℃) | 265 | 265 | 265 | |
| Color | White | White | White | |
| Heat resistance | Change color | Do not have | Do not have | Do not have |
| Volumetric change | Do not have | Do not have | Do not have | |
| Oil absorbency (%) | 3.3 | 4.9 | 5.1 | |
As can be seen from the table, the more common polyester fiber of oil absorbency of single hole polyester fiber and profiled-cross-section porous polyester fiber is significantly increased.
Compared with prior art, the invention has the beneficial effects as follows:
1. single hole or porous polymeric fibres have good lipophile, heat-resisting quantity, flexibility, have bigger surface area and cavity, with the bitumen slurries compound can be compatible well, therefore pitch had stronger infiltration and suction-operated, adsorptive pitch prevent pitch analysing leakage in compound in a large number, reduce the brittle point temperature of compound, improve the mechanical property and the crack resistance at low-temperature of compound, play toughening effect.
2. compare with common emulsified asphalt slurry seal, polyfiber reinforced emulsified asphalt slurry seal has improved the deformability of slurry seal, and its reflection crack is obviously reduced; The stressed uniformity of slurry seal is strengthened, reduced local decortication and breakage.
3. implementation method is simple, can utilize original bituminous mixture to prepare equipment and directly prepare, and needn't invest new equipment.
Profiled-cross-section hollow polymer fiber of the present invention strengthens emulsified asphalt slurry seal and can be applicable to various the standard highways especially maintenance and the maintenance of high-grade highway, more is applicable to asphalt road and is out of shape bigger common road.
Description of drawings
Accompanying drawing is the schematic cross-section of quincunx cross section porous polyester fiber.
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing:
Embodiment 1:
Mulseal: the BC-1 type, satisfy the mulseal technical requirements of " asphalt highway construction technique normalizing " road.Asphalt content is 10%.
Fiber: do not add.
Filler: adopt the 425# Portland cement, mixing dosage is 3%.Every performance meets " asphalt highway construction technique normalizing " regulation (JTGF40-2004).
Main aggregate: sand.Every performance meets the regulation of " asphalt highway construction technique normalizing " (JTG F40-2004).
The mineral aggregate gradation situation is:
| Sieve aperture (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 98.18 | 94.3 | 84.15 | 50.2 | 15.8 | 13.18 | 5.58 |
Embodiment 2:
Mulseal: the BC-1 type, satisfy the mulseal technical requirements of " asphalt highway construction technique normalizing " road.Asphalt content is 10%.
Fiber: be quincunx cross section shown in the drawings porous polyester fiber, volume is 0.10% of a compound gross mass.
Filler: adopt the 425# Portland cement, mixing dosage is 3%.Every performance meets " asphalt highway construction technique normalizing " regulation (JTGF40-2004).
Main aggregate: sand.Every performance meets the regulation of " asphalt highway construction technique normalizing " (JTG F40-2004).
The mineral aggregate gradation situation is:
| Sieve aperture (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 98.18 | 94.3 | 84.15 | 50.2 | 15.8 | 13.18 | 5.58 |
Embodiment 3:
Mulseal: the BC-1 type, satisfy of the technical requirements of " asphalt highway construction technique normalizing " road with mulseal, consumption is 10%.
Fiber: be quincunx cross section shown in the drawings porous polyester fiber, volume is 0.15% of a compound gross mass.
Filler: adopt the 425# Portland cement, mixing dosage is 3%.Every performance meets " asphalt highway construction technique normalizing " regulation (JTGF40-2004).
Main aggregate: sand.Every performance meets the regulation of " asphalt highway construction technique normalizing " (JTG F40-2004).
The mineral aggregate gradation situation is:
| Sieve aperture (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 98.18 | 94.3 | 84.15 | 50.2 | 15.8 | 13.18 | 5.58 |
Embodiment 4:
Mulseal: the BC-1 type, satisfy the mulseal technical requirements of " asphalt highway construction technique normalizing " road.Asphalt content is 10%.
Fiber: be quincunx cross section shown in the drawings porous polyester fiber, volume is 0.20% of a compound gross mass.
Filler: adopt the 425# Portland cement, mixing dosage is 3%.Every performance meets " asphalt highway construction technique normalizing " regulation (JTGF40-2004).
Main aggregate: sand.Every performance meets the regulation of " asphalt highway construction technique normalizing " (JTG F40-2004).
The mineral aggregate gradation situation is:
| Sieve aperture (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 98.18 | 94.3 | 84.15 | 50.2 | 15.8 | 13.18 | 5.58 |
Embodiment 5:
Mulseal: the BC-1 type, satisfy the mulseal technical requirements of " asphalt highway construction technique normalizing " road.Asphalt content is 10%.
Fiber: be quincunx cross section shown in the drawings porous polyester fiber, volume is 0.25% of a compound gross mass.
Filler: adopt the 425# Portland cement, mixing dosage is 3%.Every performance meets " asphalt highway construction technique normalizing " regulation (JTGF40-2004).
Main aggregate: sand.Every performance meets the regulation of " asphalt highway construction technique normalizing " (JTG F40-2004).
The mineral aggregate gradation situation is:
| Sieve aperture (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 98.18 | 94.3 | 84.15 | 50.2 | 15.8 | 13.18 | 5.58 |
Embodiment 6:
Mulseal: the BC-1 type, satisfy the mulseal technical requirements of " asphalt highway construction technique normalizing " road.Asphalt content is 10%.
Fiber: be quincunx cross section shown in the drawings porous polyester fiber, volume is 0.30% of a compound gross mass.
Filler: adopt the 425# Portland cement, mixing dosage is 3%.Every performance meets " asphalt highway construction technique normalizing " regulation (JTGF40-2004).
Main aggregate: sand.Every performance meets the regulation of " asphalt highway construction technique normalizing " (JTG F40-2004).
The mineral aggregate gradation situation is:
| Sieve aperture (mm) | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.30 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 98.18 | 94.3 | 84.15 | 50.2 | 15.8 | 13.18 | 5.58 |
The performance of 6 embodiment is compared as follows:
Different fibers contents are to the influence of wet wheel abrasion value
| Asphalt content (%) | Fibers content (%) | G/m before the abrasion 2 | Abrasion back g/m 2 | Abrasion value g/m 2 |
| 10 | 0 | 1028 | 1011 | 559.3 |
| 10 | 0.10 | 1259 | 1280 | 493.5 |
| 10 | 0.15 | 1135 | 1123 | 394.8 |
| 10 | 0.20 | 12234 | 12226 | 263.2 |
| 10 | 0.25 | 1450 | 1441 | 296.1 |
| 10 | 0.30 | 1168 | 1158 | 329.0 |
Last table explanation, the preferred volume of profiled-cross-section porous polyester fiber is 0.15～0.25%.
Claims (4)
1. a profiled-cross-section hollow polymer fiber strengthens emulsified asphalt slurry seal, contains grating aggregate chips or sandstone, mulseal and filler, and it is characterized in that: it also contains the profiled-cross-section hollow polymer fiber; The content of this polymer fiber is 0.1～0.3% of bitumen slurries compound gross weight.
2. a kind of profiled-cross-section hollow polymer fiber according to claim 1 strengthens emulsified asphalt slurry seal, it is characterized in that: polymer fiber can be polyester fiber, polyacrylonitrile fibre or Fypro, or the assorted fibre of being made up of arbitrarily these fibers.
3. a kind of profiled-cross-section hollow polymer fiber according to claim 1 strengthens emulsified asphalt slurry seal, it is characterized in that: the profiled-cross-section of polymer fiber can be any regular or irregular geometry, for example cross, trilobal, groined type, star, quincunx etc.
4. a kind of profiled-cross-section hollow polymer fiber according to claim 1 strengthens emulsified asphalt slurry seal, and it is characterized in that: hollow structure is to the structure that one or more holes are arranged along fiber axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100929 CN1963023A (en) | 2005-11-08 | 2005-11-08 | Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510100929 CN1963023A (en) | 2005-11-08 | 2005-11-08 | Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal |
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| CN1963023A true CN1963023A (en) | 2007-05-16 |
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| CN 200510100929 Pending CN1963023A (en) | 2005-11-08 | 2005-11-08 | Profiled-cross-section hollow polyfiber reinforced emulsified asphalt slurry seal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892622A (en) * | 2010-06-28 | 2010-11-24 | 宁波大学 | Modified emulsified asphalt slurry seal and preparation method thereof |
| CN102211914A (en) * | 2011-03-15 | 2011-10-12 | 武汉广益工程咨询有限公司 | Tough road surface base layer material solidifying agent and preparation method thereof |
-
2005
- 2005-11-08 CN CN 200510100929 patent/CN1963023A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892622A (en) * | 2010-06-28 | 2010-11-24 | 宁波大学 | Modified emulsified asphalt slurry seal and preparation method thereof |
| CN101892622B (en) * | 2010-06-28 | 2011-12-14 | 宁波大学 | preparation method of modified emulsified asphalt slurry seal |
| CN102211914A (en) * | 2011-03-15 | 2011-10-12 | 武汉广益工程咨询有限公司 | Tough road surface base layer material solidifying agent and preparation method thereof |
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Open date: 20070516 |