CN102086622A - Composite reinforced crack-resistant fiber for asphalt pavements - Google Patents
Composite reinforced crack-resistant fiber for asphalt pavements Download PDFInfo
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- CN102086622A CN102086622A CN200910219385XA CN200910219385A CN102086622A CN 102086622 A CN102086622 A CN 102086622A CN 200910219385X A CN200910219385X A CN 200910219385XA CN 200910219385 A CN200910219385 A CN 200910219385A CN 102086622 A CN102086622 A CN 102086622A
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Abstract
The invention discloses composite reinforced crack-resistant fiber for asphalt pavements. The composite reinforced crack-resistant fiber is prepared by compounding 11 to 35 mass percent of high-elastic-modulus fiber and 65 to 89 mass percent of low-elastic-modulus fiber. The high-elastic-modulus fiber and the low-elastic-modulus fiber are compounded into a mixed fiber material. In a composite material, respective performances of various fibers are brought into full play, and a complementary composite reinforcing body is formed; simultaneously, multiple types of fibers are randomly distributed in asphalt concrete in a three-dimensional way, so that the oil absorption rate of the mixed material is increased; and the fibers are organically matched with one another, so that a concrete fiber reinforcing system is formed, the mixed material is prevented from cracking, the self-recovery capability of cracks on asphalt pavements is enhanced, and cracks are reduced.
Description
Technical field
The present invention relates to a kind of composite fibre, particularly relate to the compound enhancing anti-crack fiber of a kind of flexible pavement.
Background technology
Existing flexible pavement is in order to strengthen its cracking resistance, water resistance, generally in bituminous mixture, add single chemical fibre or chemical industry fiber, though this bituminous mixture that is mixed with single fiber has strengthened the cracking resistance and the water resistance of bituminous mixture to a certain extent, but the bituminous mixture rupture strength that is mixed with single chemical fibre or chemical industry fiber is general, and cost is higher, moreover, yet there are no report for the technology of admixture composite fibre in the asphalt pavement mixture at present.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that exists at prior art, provides a kind of cracking resistance good and reduce the compound enhancing anti-crack fiber of flexible pavement of flexible pavement seminess.
For solving the problems of the technologies described above, the technical solution used in the present invention is: the compound enhancing anti-crack fiber of a kind of flexible pavement, it is characterized in that, be composited by high modulus fibre and low elastic modulus fiber, their mass percent is: high modulus fibre 11%-35%, low elastic modulus fiber 65%-89%.
Described high modulus fibre is that modulus of elasticity is higher than concrete steel fibre, carbon fiber, glass fiber or aramid fiber.
Described low elastic modulus fiber is that modulus of elasticity is lower than concrete vinylon fibre, polypropylene fiber, acrylic fiber, nylon fiber, polyethylene fibre or wood fibre.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
The present invention compared with prior art has the following advantages: the present invention is the composite fibre material that high modulus fibre and the compound proportioning of low elastic modulus fiber are made, in this composite material, various fibers are given full play to performance separately, form a kind of composite reinforced body of complementation; Multiple fiber three-dimensional random in bituminous concrete distributes simultaneously, increase oil absorbency and organic cooperation of compound, thereby form the concrete fiber system of putting more energy into, blocked the cracking of compound, improve the self-healing ability of flexible pavement crackle, reduced the appearance of crackle.
The invention will be further described below in conjunction with specific embodiment, and embodiment is just to explanation of the present invention and non-limiting.
The specific embodiment
Embodiment 1
The raw material of present embodiment is formed: high modulus fibre 23%, low elastic modulus fiber 77%.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
Embodiment 2
The raw material of present embodiment is formed: high modulus fibre 11%, low elastic modulus fiber 89%.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
Embodiment 3
The raw material of present embodiment is formed: high modulus fibre 35%, low elastic modulus fiber 65%.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
Embodiment 4
The raw material of present embodiment is formed: high modulus fibre 20%, low elastic modulus fiber 80%.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
Embodiment 5
The raw material of present embodiment is formed: high modulus fibre 30%, low elastic modulus fiber 70%.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
Embodiment 6
The raw material of present embodiment is formed: high modulus fibre 25%, low elastic modulus fiber 75%.
Its preparation method is: the high modulus fibre and the low elastic modulus fiber of above-mentioned mass percent are thrown in the mixer according to proportioning, evenly stir after 30 seconds finished product.
Using method: at first will gather materials and the compound enhancing anti-crack fiber of flexible pavement of the present invention drop into simultaneously in the asphalt mixer, dry mixing 30 seconds so adds pitch wet-mixing 30 seconds again, promptly can be made into fiber mixture.
Claims (4)
1. the compound enhancing anti-crack fiber of flexible pavement is characterized in that be composited by high modulus fibre and low elastic modulus fiber, their mass percent is: high modulus fibre 11%-35%, low elastic modulus fiber 65%-89%.
2. the compound enhancing anti-crack fiber of a kind of flexible pavement according to claim 1, it is characterized in that, be composited by high modulus fibre and low elastic modulus fiber, their mass percent is: high modulus fibre 23%, low elastic modulus fiber 77%.
3. the compound enhancing anti-crack fiber of a kind of flexible pavement according to claim 1 and 2 is characterized in that, described high modulus fibre is that modulus of elasticity is higher than concrete steel fibre, carbon fiber, glass fiber or aramid fiber.
4. the compound enhancing anti-crack fiber of a kind of flexible pavement according to claim 1 and 2, it is characterized in that described low elastic modulus fiber is that modulus of elasticity is lower than concrete vinylon fibre, polypropylene fiber, acrylic fiber, nylon fiber, polyethylene fibre or wood fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910219385XA CN102086622A (en) | 2009-12-08 | 2009-12-08 | Composite reinforced crack-resistant fiber for asphalt pavements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910219385XA CN102086622A (en) | 2009-12-08 | 2009-12-08 | Composite reinforced crack-resistant fiber for asphalt pavements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102086622A true CN102086622A (en) | 2011-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910219385XA Pending CN102086622A (en) | 2009-12-08 | 2009-12-08 | Composite reinforced crack-resistant fiber for asphalt pavements |
Country Status (1)
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| CN (1) | CN102086622A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296776A (en) * | 2011-06-17 | 2011-12-28 | 南京倍立达实业有限公司 | Three-dimensional fiber inorganic composite product and production method thereof |
| CN102733283A (en) * | 2012-07-09 | 2012-10-17 | 科达集团股份有限公司 | Application of strip-shaped soil engineering fiber and preparation method for fiber asphalt concrete |
| CN103553389A (en) * | 2013-10-18 | 2014-02-05 | 汇通路桥建设集团有限公司 | Interwoven composite fiber for improving pavement performance of asphalt mixture |
| CN107162493A (en) * | 2016-03-07 | 2017-09-15 | 中房创通建设集团有限公司 | A kind of modified asphalt concrete and preparation method thereof, construction method |
| CN111455763A (en) * | 2020-04-24 | 2020-07-28 | 杜亚军 | Construction method for laying highway asphalt concrete |
-
2009
- 2009-12-08 CN CN200910219385XA patent/CN102086622A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102296776A (en) * | 2011-06-17 | 2011-12-28 | 南京倍立达实业有限公司 | Three-dimensional fiber inorganic composite product and production method thereof |
| CN102733283A (en) * | 2012-07-09 | 2012-10-17 | 科达集团股份有限公司 | Application of strip-shaped soil engineering fiber and preparation method for fiber asphalt concrete |
| CN102733283B (en) * | 2012-07-09 | 2014-08-06 | 科达集团股份有限公司 | Application of strip-shaped soil engineering fiber and preparation method for fiber asphalt concrete |
| CN103553389A (en) * | 2013-10-18 | 2014-02-05 | 汇通路桥建设集团有限公司 | Interwoven composite fiber for improving pavement performance of asphalt mixture |
| CN103553389B (en) * | 2013-10-18 | 2014-09-24 | 汇通路桥建设集团有限公司 | Interwoven composite fiber for improving pavement performance of asphalt mixture |
| CN107162493A (en) * | 2016-03-07 | 2017-09-15 | 中房创通建设集团有限公司 | A kind of modified asphalt concrete and preparation method thereof, construction method |
| CN107162493B (en) * | 2016-03-07 | 2020-02-21 | 中铁创通建设集团有限公司 | Modified asphalt concrete and preparation method and construction method thereof |
| CN111455763A (en) * | 2020-04-24 | 2020-07-28 | 杜亚军 | Construction method for laying highway asphalt concrete |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110608 |