CN109912258A - A kind of asphalt material for repairing and its preparation method and application for repairing asphalt pavement pit - Google Patents
A kind of asphalt material for repairing and its preparation method and application for repairing asphalt pavement pit Download PDFInfo
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- CN109912258A CN109912258A CN201910033293.6A CN201910033293A CN109912258A CN 109912258 A CN109912258 A CN 109912258A CN 201910033293 A CN201910033293 A CN 201910033293A CN 109912258 A CN109912258 A CN 109912258A
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- repairing
- asphalt
- asphalt pavement
- heating
- pavement pit
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Abstract
The present invention relates to a kind of asphalt material for repairing and its preparation method and application for repairing asphalt pavement pit, including following components and parts by weight content: 95-105 parts of Mineral Aggregate, 20-23 parts of absorbing material, 4-6 parts of pitch, agitating and heating after Mineral Aggregate, absorbing material and pitch are mixed, material for repairing is obtained, the material for repairing is used in the repairing of asphalt pavement pit by microwave method for repairing and mending.Compared with prior art, the present invention can reach apparent repair efficiency using microwave heating, and asphalt virgin material and old material adhesion strength are high after repairing, and high degree reduces secondary repairing.
Description
Technical field
The present invention relates to a kind of pavement patchings, repair more particularly, to a kind of asphalt for repairing asphalt pavement pit
Material and its preparation method and application.
Background technique
After the prolonged military service of experience, bituminous pavement will appear many diseases, wherein again the most prominent with pit slot.Road
The reasons such as face cracking, loose, decortication, depression are likely to lead to the generation of pit slot, and such as its development is prevented in repairing not in time, easily
Cause road surface to be damaged on a large scale even to fail.
Current asphalt pavement pit repairing technique both domestic and external can substantially be divided into three kinds, and cold burden cold-patch technique, hot material are vulcanized
Technique and hot material cold-patch technique, are more able to satisfy quality requirement relative to cold paving technique wherein vulcanizing technology.
The principle for vulcanizing technology is so that asphalt material is restored molten at the mode heated asphalt road surface pit slot using radiant heating
Melt state, reaches pitch regeneration, refill virgin material, finally can be reached pavement compaction more better than cold-patch using road roller
Repair efficiency.But mixture temperature when constructing around pit slot is often not high enough, cannot contact well with material for repairing, and compacting is not
Sufficiently, unavoidably generating weak seam road surface water will penetrate into from seam, be trapped in repairing block, inhale and make in flowing pressure and pump
Under, new pit-hole is generated quickly, reduces the effect of repairing.In addition it during using traditional electric heating, fuel heating, deposits
The problems such as heating efficiency is low, heat penetration is shallow, heating is uneven, heating rate is slow.
Summary of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of repairing bituminous pavements
Asphalt material for repairing of pit slot and its preparation method and application.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of asphalt material for repairing for repairing asphalt pavement pit, including following components and parts by weight content:
95-105 parts of Mineral Aggregate；
10-35 parts of absorbing material；
4-6 parts of pitch.
Further, the Mineral Aggregate be basaltic broken stone is mixed with miberal powder, lime stone rubble is mixed with miberal powder or
Basaltic broken stone and lime stone rubble are mixed with miberal powder.
Further, the partial size of the miberal powder is 0-0.075mm, and the partial size of the basaltic broken stone is 0-15mm, institute
The partial size for stating lime stone rubble is 0-15mm.
Further, the absorbing material is ferrite powder.
Further, the Curie-point temperature of the absorbing material is more than 1000 DEG C.
Further, the pitch is high glutinous pitch, and needle penetration is not less than 40 (0.1mm), and 15 DEG C of ductilities are not less than
80cm, softening point are not less than 50 DEG C, and 60 DEG C of dynamic viscosities are not less than 20kPas.
A kind of preparation method of asphalt material for repairing that repairing asphalt pavement pit, by Mineral Aggregate, inhales wave material
Material arrives material for repairing with agitating and heating after pitch mixing.
Further, heating temperature is 165-185 DEG C, mixing time 4-6min.
A kind of application of asphalt material for repairing that repairing asphalt pavement pit passes through microwave method for repairing and mending, repairing drip
The pit slot on green road surface.
Further, specific step is as follows for microwave method for repairing and mending:
(1) cleaning pit slot loosens position and dust, sundries, brushing heated bitumen, i.e. solid asphalt heating and melting obtain, so
Afterwards to progress microwave preheating at pit slot；
(2) material for repairing is put into pit slot, is tentatively rolled；
(3) secondary microwave heating is carried out to roll with secondary；
(4) extra loose particle is cleaned, that is, completes repairing.
Further, the microwave heating uses microwave heating car, and the frequency of the microwave heating is 2.45GHz, heating
Time is 5min, and tentatively rolling with the secondary temperature rolled is 100-130 DEG C.
Compared with prior art, the invention has the following advantages:
(1) traditional heating method, the repairing heated using the absorbing material added in asphalt are compared
Method can efficiently absorb microwave, achieve the effect that be rapidly heated, simultaneously because absorbing material is equal in material for repairing
Even distribution can make heating not by effect of depth, more uniform；
(2) heating efficiency is high, heat up rapid characteristic, so that while heating material for repairing, mixture around pit slot
Temperature also gets a promotion rapidly, so as to realize higher adhesion strength between material for repairing and old material by microwave heating.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Embodiment 1
Each material information used in embodiment is as follows:
Mineral Aggregate: basaltic broken stone, lime stone rubble and miberal powder, using OGFC-13 gradation (JTG-F40-2017
" standard specification for construction and acceptance of highway asphalt pavement "), specific gradation composition such as table 1:
The gradation composition of 1 Mineral Aggregate of table
| Screen size (mm) | 16 | 13.2 | 9.5 | 4.75 | 2.36 | 1.18 | 0.6 | 0.3 | 0.15 | 0.075 |
| Percent of pass (%) | 100 | 93.8 | 75.6 | 27.7 | 19.3 | 16.2 | 12.2 | 9.2 | 7.5 | 6.0 |
Absorbing material: manganese-zinc ferrite powder
Pitch: the glutinous pitch of height
Microwave heating equipment: microwave heating car
According to " highway engineering gather materials Experimental Procedures " (JTG 42-2005) and " highway engineering pitch and asphalt
Experimental Procedures " (JTG/E20-2011) codes and standards method, Mineral Aggregate forms under the gradation of table 1, is by mass ratio
Mineral Aggregate, absorbing material and the pitch of 100:32.19:4.7 prepares asphalt and repairs in 175 DEG C of heating stirring 5min
Feed supplement (absorbing material with miberal powder synchronize be put into), is made bituminous concrete plate, is tested using above-mentioned microwave method for repairing and mending, is had
Body step are as follows:
(1) two blocks of bituminous concrete plates are made, one piece is labeled as test specimen a containing 5% ferrite, and another piece is free of ferrite mark
It is denoted as test specimen b, is labeled as test specimen a-1, a-2, a-3, a-4, b-1, b-2, b-3, b- along intermediate crucial incision respectively after demoulding
4；
(2) test specimen a-1, a-4 and b-1, b-4 are respectively put into micro-wave oven and are heated five minutes, made to expect softening always, then put
Enter the diagonal line of concrete test die, the already present old material of simulated roadway, contact surface uniformly smears heated bitumen, the sky in the upper right corner
Scarce place is filled out containing ferritic asphalt, and lower left corner filling is free of ferritic asphalt, simulated roadway repairing
New filler；
(3) preliminary consolidation molding is carried out, then two concrete slabs are put into micro-wave oven and are heated to 100 DEG C, is compacted again,
Form two pieces of new concrete slabs；
(4) after demoulding, in a-1 and ferrite material for repairing block seam crossing, b-1 and ferrite material for repairing block seam crossing, b-4
With ferrite material for repairing block seam crossing coring, it is respectively labeled as 1-1,0-1,0-0, respectively expects always containing ferrite and contains ferrite
Virgin material test specimen expects to expect always with the test specimen of virgin material containing ferrite, without ferrite and be free of ferrite virgin material test specimen always without ferrite；
(5) to the test specimen of acquisition according to " highway engineering pitch and Asphalt Mixture Experiment regulation " (JTG E20-2011) T
0705-2011 carries out compacting asphalt mixture density test (surface drying method), according to " highway engineering pitch and Asphalt Mixture Experiment
Regulation " (JTG E20-2011) T 0716-2011 carries out Indirect Tensile Tests of Asphalt Mixtures, wherein the direction in splitting direction and seam
In parallel, cleavage strength can reflect the tensile strength of contact surface, and test result is as shown in Table 2,3:
2 drilling core voidage of table
| Test specimen number | Voidage (VV/%) |
| 0-1 | 16.930 |
| 1-1 | 16.707 |
| 0-0 | 18.788 |
3 drilling core cleavage strength of table
| Test specimen number | Intensity (kN) |
| 0-1 | 6.87 |
| 1-1 | 7.12 |
| 0-0 | 3.72 |
From voidage compared with cleavage strength can be seen that plain asphalt mixture material for repairing, using material for repairing of the invention
And corresponding microwave method for repairing and mending can be obviously improved the repair efficiency of pit slot.
Embodiment 2
Using basaltic broken stone and miberal powder as Mineral Aggregate, according to mass ratio be 95:10:4 by Mineral Aggregate, inhale
Wave material ferrite powder and pitch mixing, stir 5min under the conditions of 165 DEG C, asphalt material for repairing are made.
The process repaired using the material for repairing to asphalt pavement pit is as follows:
(1) cleaning pit slot loosens position and dust, sundries；
(2) brushing heated bitumen at the pit slot obtained by step (1)；
(3) using microwave heating equipment to preheating at pit slot obtained by step (2), frequency is set as 2.45GHz,
Heating time 5min；
(4) material for repairing is put into pit slot, is rolled using muller, roll temperature control at 120 DEG C；
(5) secondary microwave heating is carried out to the road surface after tentatively rolling and secondary rolled；
(6) extra loose particle is swept off, that is, completes repairing.
Embodiment 3
Using lime stone rubble and miberal powder as Mineral Aggregate, according to mass ratio be 105:35:6 by Mineral Aggregate,
Absorbing material ferrite powder and pitch mixing, stir 4min under the conditions of 185 DEG C, asphalt material for repairing are made.
The process repaired using the material for repairing to asphalt pavement pit is as follows:
(1) cleaning pit slot loosens position and dust, sundries；
(2) brushing heated bitumen at the pit slot obtained by step (1)；
(3) using microwave heating equipment to preheating at pit slot obtained by step (2), frequency is set as 2.45GHz,
Heating time 5min；
(4) material for repairing is put into pit slot, is rolled using muller, roll temperature control at 130 DEG C；
(5) secondary microwave heating is carried out to the road surface after tentatively rolling and secondary rolled；
(6) extra loose particle is swept off, that is, completes repairing.
The above description of the embodiments is intended to facilitate ordinary skill in the art to understand and use the invention.
Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein general
Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to the above embodiments, ability
Field technique personnel announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be of the invention
Within protection scope.
Claims (10)
1. a kind of asphalt material for repairing for repairing asphalt pavement pit, which is characterized in that including following components and parts by weight
Content:
95-105 parts of Mineral Aggregate；
10-35 parts of absorbing material；
4-6 parts of pitch.
2. a kind of asphalt material for repairing for repairing asphalt pavement pit according to claim 1, which is characterized in that institute
State Mineral Aggregate be basaltic broken stone is mixed with miberal powder, lime stone rubble is mixed with miberal powder or basaltic broken stone and lime stone it is broken
Stone is mixed with miberal powder.
3. a kind of asphalt material for repairing for repairing asphalt pavement pit according to claim 2, which is characterized in that institute
The partial size for stating miberal powder is 0-0.075mm, and the partial size of the basaltic broken stone is 0-15mm, and the partial size of the lime stone rubble is 0-
15mm。
4. a kind of asphalt material for repairing for repairing asphalt pavement pit according to claim 1, which is characterized in that institute
Stating absorbing material is ferrite powder.
5. a kind of asphalt material for repairing for repairing asphalt pavement pit according to claim 1, which is characterized in that institute
The Curie-point temperature for stating absorbing material is more than 1000 DEG C.
6. -5 any a kind of preparation side for the asphalt material for repairing for repairing asphalt pavement pit according to claim 1
Method, which is characterized in that by Mineral Aggregate, absorbing material and pitch mix after agitating and heating to get arrive material for repairing.
7. a kind of preparation method of asphalt material for repairing for repairing asphalt pavement pit according to claim 6,
It is characterized in that, heating temperature is 165-185 DEG C, mixing time 4-6min.
8. -5 any a kind of application for the asphalt material for repairing for repairing asphalt pavement pit according to claim 1,
It is characterized in that, by microwave method for repairing and mending, repairs the pit slot of bituminous pavement.
9. a kind of application of asphalt material for repairing for repairing asphalt pavement pit according to claim 8, feature
It is, specific step is as follows for microwave method for repairing and mending:
(1) cleaning pit slot loosens position and dust, sundries, brushing pitch, then to progress microwave preheating at pit slot；
(2) material for repairing is put into pit slot, is tentatively rolled；
(3) secondary microwave heating is carried out to roll with secondary；
(4) extra loose particle is cleaned, that is, completes repairing.
10. a kind of application of asphalt material for repairing for repairing asphalt pavement pit according to claim 9, feature
It is, the microwave heating uses microwave heating car, and the frequency of the microwave heating is 2.45GHz, heating time 5min, just
It is 100-130 DEG C that step, which is rolled with the secondary temperature rolled,.
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| CN201910033293.6A CN109912258A (en) | 2019-01-14 | 2019-01-14 | A kind of asphalt material for repairing and its preparation method and application for repairing asphalt pavement pit |
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| CN201910033293.6A CN109912258A (en) | 2019-01-14 | 2019-01-14 | A kind of asphalt material for repairing and its preparation method and application for repairing asphalt pavement pit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655349A (en) * | 2019-09-04 | 2020-01-07 | 合肥工业大学 | Asphalt pavement pit repairing capsule and preparation and construction method thereof |
| CN110698114A (en) * | 2019-10-11 | 2020-01-17 | 中南大学 | Preparation method of silicon carbide modified asphalt concrete |
| CN110922097A (en) * | 2019-11-08 | 2020-03-27 | 甘肃路桥建设集团有限公司 | Asphalt pavement repairing material and construction method |
| CN112323565A (en) * | 2020-10-27 | 2021-02-05 | 合肥工业大学 | Method for repairing multifunctional pits of asphalt pavement by induction heating and microwave heating |
| CN112323652A (en) * | 2020-10-27 | 2021-02-05 | 合肥工业大学 | Steel bridge deck pavement layer pit slot repairing method based on induction heating |
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| KR100698478B1 (en) * | 2005-12-01 | 2007-03-23 | (주)에이알앤씨 | Cold type color asphalt patching material which is react with water for road repair |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110655349A (en) * | 2019-09-04 | 2020-01-07 | 合肥工业大学 | Asphalt pavement pit repairing capsule and preparation and construction method thereof |
| CN110698114A (en) * | 2019-10-11 | 2020-01-17 | 中南大学 | Preparation method of silicon carbide modified asphalt concrete |
| CN110922097A (en) * | 2019-11-08 | 2020-03-27 | 甘肃路桥建设集团有限公司 | Asphalt pavement repairing material and construction method |
| CN112323565A (en) * | 2020-10-27 | 2021-02-05 | 合肥工业大学 | Method for repairing multifunctional pits of asphalt pavement by induction heating and microwave heating |
| CN112323652A (en) * | 2020-10-27 | 2021-02-05 | 合肥工业大学 | Steel bridge deck pavement layer pit slot repairing method based on induction heating |
| CN112323565B (en) * | 2020-10-27 | 2022-04-12 | 合肥工业大学 | Method for repairing multifunctional pits of asphalt pavement by induction heating and microwave heating |
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Application publication date: 20190621 |