CN102153315A - Preventive maintenance material for asphalt pavement - Google Patents
Preventive maintenance material for asphalt pavement Download PDFInfo
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- CN102153315A CN102153315A CN2010106055160A CN201010605516A CN102153315A CN 102153315 A CN102153315 A CN 102153315A CN 2010106055160 A CN2010106055160 A CN 2010106055160A CN 201010605516 A CN201010605516 A CN 201010605516A CN 102153315 A CN102153315 A CN 102153315A
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- silicone resin
- preventive maintenance
- bituminous pavement
- maintenance material
- fine aggregate
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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
- 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
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Abstract
The invention belongs to the technical field of road maintenance, and particularly relates to a preventive maintenance material for an asphalt pavement. The preventive maintenance material for an asphalt pavement is characterized by mainly comprising the following raw materials in percentage by weight: 30-60% of organic silicon resin, 0-2% of ultraviolet absorbent, 3-5% of silane coupling agent, 30-50% of fine stone dust and 4-20% of waste rubber powder. The maintenance material can enhance the ultraviolet aging resistance and skid resistance of the asphalt pavement.
Description
Technical field
The invention belongs to the Road maintenance technical field, relate in particular to a kind of bituminous pavement preventive maintenance material.
Background technology
Current, China's expressway construction has been obtained very big achievement, and by the end of the end of the year 2009, China's motorway total kilometrage that is open to traffic reaches 6.5 ten thousand kilometers, wherein is bituminous pavement more than 90%.Progressively perfect along with China's freeway net, the emphasis of the motorway of China shifts to the maintenance aspect gradually.
Bituminous pavement very easily is subjected to the influence of UV-light and wears out, especially the higher area of UV-irradiation intensity.The radiation of UV-light easily causes pitch composition and altered chemical structure, bituminous pavement top layer compound and aging relevant performance degradation, cause bituminous pavement to produce the crack, peel off, cheat disease such as groove, the military service performance of deterioration bituminous pavement shortens its work-ing life greatly.The intensive ultraviolet ray makes that the catabiosis of pitch and asphalt is serious, causes the too early destruction of bituminous pavement, greatly reduces the work-ing life of highway.Particularly in the stronger area of UV-light, general design life is 15 years, but in 2～3 years or 3～5 years functional damage takes place promptly after actual being open to traffic.
According to World Health Organization's statistics, the whole world has 1,200,000 people to die from road traffic accident every year approximately in addition.The traffic safety situation of China allows of no optimist especially, and Ministry of Public Security's statistics shows: 2009, nearly 100,000 people of China died from road traffic accident.Therefore, people have also caused enough attention to the traffic safety problem when enjoying convenient, fast and comfortable that Modern Traffic brings.Yet the factor that influences traffic safety is a lot, have result of study show all multifactor in, pavement skid resistance condition is one of important factor that influences traffic safety, this point is more outstanding concerning bituminous pavement.
The compound of pavement asphalt the most widely that uses in China is exactly the common intensive type compound of joining at present, and it is little that it has voidage, the advantage of good endurance.But also exist the road surface construction degree of depth little, the problem that anti-slide performance is lower.Especially when the rainy day, surface gathered water has little time to get rid of and form water membrane between tire and bituminous pavement, very easily causes smooth and the initiation traffic accident, and this phenomenon is even more serious in brake deceleration frequent intersection area or gangway.Because motorway has the speed of a motor vehicle, the characteristics high, that vehicle flowrate is big have been quickened the polishing and the abrasion of bituminous pavement than the big traffic capacity and wheel load, and the anti-slide performance on road surface is decayed rapidly simultaneously, and traffic safety problem becomes increasingly conspicuous.So the antiskid characteristic of bituminous pavement becomes its most important surface property, it will for the vehicle of running at high speed at the good attachment characteristic that provides in all time between road surface and the wheel, shorten the drag distance of driving simultaneously, reduce hidden peril of accident.
In the asphalt pavement conserving method commonly used at present, in the time of the serious problem of reply asphalt ultraviolet ageing, mainly be methods such as the emulsified bitumen mist seal that adopts and little table place, yet these maintenance process institutes must adopt emulsified bitumen or modified emulsifying asphalt, and emulsified bitumen and modified emulsifying asphalt can be once more in the face of the problems of ultraviolet ageing, and this also has a strong impact on the life-span of maintenance measure.Therefore the asphalt pavement conserving material of developing a kind of anti-ultraviolet ageing has crucial meaning.
At the more weak maintenance means of bituminous pavement surface anti-slide performance, the main at present method that adopts is to adopt little table to remove or thin overlay in addition, and these all relate to complex process, also have the excessive problem of noise simultaneously.Easier preventive maintenance means such as mist seal commonly used at present in addition can reduce the anti-slide performance of bituminous pavement upper layer on the contrary.Therefore developing a kind of bituminous pavement preventive maintenance material that improves the bituminous pavement anti-slide performance has crucial meaning.
Summary of the invention
The object of the present invention is to provide a kind of bituminous pavement preventive maintenance material, this conserving material both can improve the anti-ultraviolet ageing ability of bituminous pavement, also can improve the anti-slide performance on road surface simultaneously.
For achieving the above object, the technical solution adopted in the present invention is: a kind of bituminous pavement preventive maintenance material, it is characterized in that it mainly is made up of silicone resin solution, uv-absorbing agent, silane coupling agent, fine aggregate chips, waste rubber powder raw material, the shared weight percentage of each raw material is: silicone resin solution 30～60%, uv-absorbing agent 0～2%, silane coupling agent 3～5%, fine aggregate chips 30～50%, waste rubber powder 4～20%.
Described silicone resin is meant the MQ silicone resin, and its synthetic method is a silicic acid fat method.
The concentration of described machine silicon resin solution is 20～50wt%.
The shared weight percentage the best of described uv-absorbing agent is: 0.2～2%.
Described uv-absorbing agent mainly is meant salicylate class, benzophenone, benzotriazole category or hindered amines.
Described silane coupling agent mainly is meant γ-An Bingjisanyiyangjiguiwan or γ-glycidyl ether oxygen propyl trimethoxy silicane.
Described fine aggregate chips mainly is meant basalt or slag, and the size range of fine aggregate chips is 0.3mm～1.18mm.
The size range of described waste rubber powder is 0.3mm～1.18mm.
The construction of described a kind of bituminous pavement preventive maintenance material (preparation): 1) above-mentioned silicone resin solution, uv-absorbing agent, silane coupling agent were stirred 30～60 minutes at normal temperatures according to the proportional range that provides, prepare the silicone resin mixed solution, deposit separately; Fine aggregate chips and waste rubber powder are deposited separately; 2) the silicone resin mixed solution is divided into 2 sprinklings, spills the silicone resin mixed solution consumption of cloth at 100～300g/m for the first time
2, spreading 30～200g/m then
2Fine aggregate chips and waste rubber powder, spill cloth 100～300g/m again after waiting 2～3 hours
2The silicone resin mixed solution, can open to traffic after 4～6 hours.
Compared with prior art, the invention has the beneficial effects as follows:
1. the main component silicone resin itself has very strong anti-ultraviolet ageing ability in the conserving material of the present invention, has added uv-absorbing agent simultaneously, the further like this ability that strengthens its anti-ultraviolet ageing; Conserving material of the present invention can be coated in bituminous pavement surface cure film forming, thereby prevents the ultraviolet ageing of bituminous pavement.The present invention has good anti-ultraviolet ageing ability, can reduce the ultraviolet ageing of pitch and asphalt significantly.
2. utilize silicone resin solution under the effect of silane coupling agent, well to bond in addition with fine aggregate chips and waste rubber powder, also can well bond simultaneously with asphalt, in the ability of the antiskid that improves the bituminous pavement upper layer, also can reduce the noise on road surface, conserving material of the present invention both can improve the resistance of aging of bituminous pavement, also can improve the anti-slide performance on road surface simultaneously.The novel preventive maintenance material of bituminous pavement of the present invention has good anti-slide performance, the anti-slide performance on passable raising asphalt top layer.
3. conserving material of the present invention constructional method in application is simple.
Embodiment
The invention will be further described below in conjunction with embodiment, but do not limit the present invention.
Embodiment 1:
A kind of bituminous pavement preventive maintenance material, it is made up of silicone resin solution, silane coupling agent, fine aggregate chips, waste rubber powder raw material, and the shared weight percentage of each raw material is: silicone resin solution 40%, silane coupling agent 5%, fine aggregate chips 50%, waste rubber powder 5% (not adding uv-absorbing agent).
The machine silicon resin solution is a MQ silicone resin solution, and the synthetic method of silicone resin is a silicic acid fat method, and the concentration of MQ silicone resin solution is 20～50wt%.Silane coupling agent is a γ-An Bingjisanyiyangjiguiwan.Fine aggregate chips is a basalt, and basaltic size range is 0.3mm～1.18mm.The size range of waste rubber powder is 0.3mm～1.18mm.
The construction of described a kind of bituminous pavement preventive maintenance material (preparation): 1) above-mentioned silicone resin solution, uv-absorbing agent, silane coupling agent were stirred 30～60 minutes at normal temperatures according to the proportional range that provides, prepare the silicone resin mixed solution; 2) the silicone resin mixed solution is divided into 2 sprinklings, spills the silicone resin mixed solution consumption of cloth at 100～300g/m for the first time
2, spreading 30～200g/m then
2Fine aggregate chips and waste rubber powder, spill cloth 100～300g/m again after waiting 2～3 hours
2The silicone resin mixed solution, maintenance was tested after 5 hours.
Embodiment 2:
A kind of bituminous pavement preventive maintenance material, it is made up of silicone resin solution, uv-absorbing agent, silane coupling agent, fine aggregate chips, waste rubber powder raw material, and the shared weight percentage of each raw material is: silicone resin solution 40%, uv-absorbing agent 1%, silane coupling agent 5%, fine aggregate chips 50%, waste rubber powder 4%.
Silicone resin solution is MQ silicone resin solution, and the synthetic method of silicone resin is a silicic acid fat method, and the concentration of MQ silicone resin solution is 20～50wt%.Uv-absorbing agent is benzophenone (UV-531).Silane coupling agent is a γ-An Bingjisanyiyangjiguiwan.Fine aggregate chips is a basalt, and basaltic size range is 0.3mm～1.18mm.The size range of waste rubber powder is 0.3mm～1.18mm.
The construction of described a kind of bituminous pavement preventive maintenance material (preparation): 1) above-mentioned silicone resin solution, uv-absorbing agent, silane coupling agent were stirred 30～60 minutes at normal temperatures according to the proportional range that provides, prepare the silicone resin mixed solution; 2) the silicone resin mixed solution is divided into 2 sprinklings, spills the silicone resin mixed solution consumption of cloth at 100～300g/m for the first time
2, spreading 30～200g/m then
2Fine aggregate chips and waste rubber powder, spill cloth 100～300g/m again after waiting 2 hours
2The silicone resin mixed solution, maintenance was tested after 5 hours.
Embodiment 3:
A kind of bituminous pavement preventive maintenance material, it is made up of silicone resin solution, uv-absorbing agent, silane coupling agent, fine aggregate chips, waste rubber powder raw material, and the shared weight percentage of each raw material is: silicone resin solution 50%, uv-absorbing agent 2%, silane coupling agent 5%, fine aggregate chips 39%, waste rubber powder 4%.
Silicone resin solution is MQ silicone resin solution, and the synthetic method of silicone resin is a silicic acid fat method, and the concentration of MQ silicone resin solution is 20～50wt%.Uv-absorbing agent is benzotriazole category (UV-326).Silane coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.Fine aggregate chips is a slag, and the size range of slag is 0.3mm～1.18mm.The size range of waste rubber powder is 0.3mm～1.18mm.
The construction of described a kind of bituminous pavement preventive maintenance material (preparation): 1) above-mentioned silicone resin solution, uv-absorbing agent, silane coupling agent were stirred 30～60 minutes at normal temperatures according to the proportional range that provides, prepare the silicone resin mixed solution, deposit separately; Fine aggregate chips and waste rubber powder are deposited separately; 2) the silicone resin mixed solution is divided into 2 sprinklings, spills the silicone resin mixed solution consumption of cloth at 100～300g/m for the first time
2, spreading 30～200g/m then
2Fine aggregate chips and waste rubber powder, spill cloth 100～300g/m again after waiting 2 hours
2The silicone resin mixed solution, maintenance was tested after 5 hours.
Adopting label is AH-70 matrix petroleum pitch, gather materials and adopt mountain, capital basalt, the every technical indicator of limestone dust satisfies the relevant regulations of GB 50092 and JTG F40-2004, the Bitumen Mix Design grating is AC-20, its grating design meets GB 50092-96, the relevant regulations among JTG F40-2004 and the JTG D50-2006.Press the proportioning of table 1, make the asphalt rut test piece according to the relevant regulations of JTJ 052-2000.
Applying embodiment 1, the pitch of the conserving material of embodiment 2 and embodiment 3, and the pitch of the same race of uncoated conserving material adopt the method for indoor acceleration ultraviolet ageing, making thickness is that the asphalt membrane of 1mm is exposed to and quickens ultraviolet ageing under the ultraviolet lamp, and uv irradiating intensity is 4890 μ w/cm
2, irradiation time is 288 hours, the experimentation temperature remains on 50 ℃.
After weathering process finishes, test unaged pitch respectively, apply the pitch after aging behind the embodiment 1-3, uncoated bituminous basic index after aging.The result sees table 2.Aging reduction bituminous ductility and penetration degree that can be serious improve the bituminous softening temperature, have improved bituminous anti-ultraviolet ageing ability significantly after being coated with preventive maintenance material of the present invention in the table as can be seen, are effectively protecting pitch under strong ultraviolet condition.
Conserving material is not implemented in test on the asphalt rut test piece, and embodiment 1, the frictional coefficient behind the conserving material of embodiment 2, and concrete experimental result sees table 3.As can be seen, preventive maintenance material of the present invention can effectively improve the frictional coefficient on asphalt surface, promptly improves the anti-slide performance on road surface in the table.
Table 1 Bituminous Mixture Ratio
Each embodiment performance perameter of table 2
| Sample number into spectrum | 15 ℃ of ductilities (cm) | 25 ℃ of penetration degrees (0.1mm) | Softening temperature (℃) |
| Unaged pitch | 167.5 | 93.1 | 43.4 |
| Uncoated aging | 51.7 | 64.2 | 49.8 |
| Example example 1 | 120.2 | 78.7 | 46.8 |
| Embodiment 2 | 134.6 | 82.4 | 45.4 |
| Embodiment 3 | 148.5 | 83.3 | 45.1 |
Each embodiment performance perameter of table 3
Embodiment 4:
A kind of bituminous pavement preventive maintenance material, it is made up of silicone resin solution, uv-absorbing agent, silane coupling agent, fine aggregate chips, waste rubber powder raw material, and the shared weight percentage of each raw material is: silicone resin solution 30%, uv-absorbing agent 2%, silane coupling agent 5%, fine aggregate chips 50%, waste rubber powder 13%.
Silicone resin solution is MQ silicone resin solution, and the synthetic method of silicone resin is a silicic acid fat method, and the concentration of MQ silicone resin solution is 20～50wt%.Uv-absorbing agent is hindered amines (770).Silane coupling agent is a γ-An Bingjisanyiyangjiguiwan.Fine aggregate chips is a basalt, and basaltic size range is 0.3mm～1.18mm.The size range of waste rubber powder is 0.3mm～1.18mm.
The construction of described a kind of bituminous pavement preventive maintenance material (preparation): 1) above-mentioned silicone resin solution, uv-absorbing agent, silane coupling agent were stirred 30～60 minutes at normal temperatures according to the proportional range that provides, prepare the silicone resin mixed solution; 2) the silicone resin mixed solution is divided into 2 sprinklings, spills the silicone resin mixed solution consumption of cloth at 100～300g/m for the first time
2, spreading 30～200g/m then
2Fine aggregate chips and waste rubber powder, spill cloth 100～300g/m again after waiting 2～3 hours
2The silicone resin mixed solution, can open to traffic after 4～6 hours.
The experiment effect of anti-ultraviolet ageing ability and anti-slide performance and embodiment 2-3 are basic identical.
Embodiment 5:
A kind of bituminous pavement preventive maintenance material, it is made up of silicone resin solution, uv-absorbing agent, silane coupling agent, fine aggregate chips, waste rubber powder raw material, and the shared weight percentage of each raw material is: silicone resin solution 60%, uv-absorbing agent 0.2%, silane coupling agent 3%, fine aggregate chips 30%, waste rubber powder 6.8%.
Silicone resin solution is MQ silicone resin solution, and the synthetic method of silicone resin is a silicic acid fat method, and the concentration of MQ silicone resin solution is 20～50wt%.Uv-absorbing agent is salicylate class (p-t-butylphenyl salicylate).Silane coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane.Fine aggregate chips is a basalt, and basaltic size range is 0.3mm～1.18mm.The size range of waste rubber powder is 0.3mm～1.18mm.
The construction of described a kind of bituminous pavement preventive maintenance material (preparation): 1) above-mentioned silicone resin solution, uv-absorbing agent, silane coupling agent were stirred 30～60 minutes at normal temperatures according to the proportional range that provides, prepare the silicone resin mixed solution; 2) the silicone resin mixed solution is divided into 2 sprinklings, spills the silicone resin mixed solution consumption of cloth at 100～300g/m for the first time
2, spreading 30～200g/m then
2Fine aggregate chips and waste rubber powder, spill cloth 100～300g/m again after waiting 2～3 hours
2The silicone resin mixed solution, can open to traffic after 4～6 hours.
The experiment effect of anti-ultraviolet ageing ability and anti-slide performance and embodiment 2-3 are basic identical.
Each raw material that the present invention is cited, and the bound of each raw material of the present invention, interval value are not enumerated embodiment one by one at this.
Claims (8)
1. bituminous pavement preventive maintenance material, it is characterized in that it mainly is made up of silicone resin solution, uv-absorbing agent, silane coupling agent, fine aggregate chips, waste rubber powder raw material, the shared weight percentage of each raw material is: silicone resin solution 30～60%, uv-absorbing agent 0～2%, silane coupling agent 3～5%, fine aggregate chips 30～50%, waste rubber powder 4～20%.
2. a kind of bituminous pavement preventive maintenance material according to claim 1, it is characterized in that: described silicone resin is meant the MQ silicone resin, its synthetic method is a silicic acid fat method.
3. a kind of bituminous pavement preventive maintenance material according to claim 1 is characterized in that: the concentration of described machine silicon resin solution is 20～50wt%.
4. a kind of bituminous pavement preventive maintenance material according to claim 1 is characterized in that: the shared weight percentage of described uv-absorbing agent is: 0.2～2%.
5. a kind of bituminous pavement preventive maintenance material according to claim 1 is characterized in that: described uv-absorbing agent is salicylate class, benzophenone, benzotriazole category or hindered amines.
6. a kind of bituminous pavement preventive maintenance material according to claim 1 is characterized in that: described silane coupling agent is γ-An Bingjisanyiyangjiguiwan or γ-glycidyl ether oxygen propyl trimethoxy silicane.
7. a kind of bituminous pavement preventive maintenance material according to claim 1 is characterized in that: described fine aggregate chips mainly is meant basalt or slag, and the size range of fine aggregate chips is 0.3mm～1.18mm.
8. a kind of bituminous pavement preventive maintenance material according to claim 1, it is characterized in that: the size range of described waste rubber powder is 0.3mm～1.18mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106055160A CN102153315A (en) | 2010-12-27 | 2010-12-27 | Preventive maintenance material for asphalt pavement |
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| CN2010106055160A CN102153315A (en) | 2010-12-27 | 2010-12-27 | Preventive maintenance material for asphalt pavement |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102532922A (en) * | 2011-12-15 | 2012-07-04 | 四川维城磁能有限公司 | Synthetic rubber asphalt and preparation method thereof |
| CN104448867A (en) * | 2014-12-30 | 2015-03-25 | 江苏健神生物农化有限公司 | Ultraviolet-aging-resistant asphalt |
| CN104277225B (en) * | 2014-10-08 | 2017-01-25 | 江苏苏博特新材料股份有限公司 | Organic silicon resin capable of promoting sliding-resistant coefficient, as well as preparation method and applications thereof |
| CN110872448A (en) * | 2018-08-30 | 2020-03-10 | 中国石油化工股份有限公司 | Ultraviolet aging resistant waste rubber powder modified asphalt and preparation method thereof |
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| CN110872448A (en) * | 2018-08-30 | 2020-03-10 | 中国石油化工股份有限公司 | Ultraviolet aging resistant waste rubber powder modified asphalt and preparation method thereof |
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Application publication date: 20110817 |