CN106495543A - A kind of bituminous concrete crack self-healing microcapsule and preparation method thereof - Google Patents
A kind of bituminous concrete crack self-healing microcapsule and preparation method thereof Download PDFInfo
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- CN106495543A CN106495543A CN201610959922.4A CN201610959922A CN106495543A CN 106495543 A CN106495543 A CN 106495543A CN 201610959922 A CN201610959922 A CN 201610959922A CN 106495543 A CN106495543 A CN 106495543A
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- bituminous concrete
- lapping
- crack self
- concrete crack
- healing
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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
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention discloses a kind of bituminous concrete crack self-healing microcapsule and preparation method thereof, and microcapsule is made up of capsule-core, cyst wall, lapping and solid dispersion；The capsule-core is stored in cyst wall, and capsule-core and cyst wall are wrapped in wherein by lapping；Solid dispersion is wrapped in lapping periphery；Capsule-core, cyst wall, lapping and solid dispersion account for the mass percent of bituminous concrete crack self-healing microcapsule and are respectively：6 12%, 2 5%, 10 14% and 70 80%.After there is microcrack under load with environment coupled action in bituminous concrete, crack tip produces stress concentration causes lapping to rupture, core materials finally infiltrate into the microcrack of bituminous concrete from the hole seepage of cyst wall, the lapping after rupture, then infiltration, bond with the asphalt material of microcrack both sides etc. effect, reaches the purpose for repairing microcrack.The microcapsule of the present invention can be remarkably reinforced bituminous concrete spontaneous recovery and ability, extend bituminous paving service life.
Description
Technical field
The present invention relates to bituminous coat project field, and in particular to a kind of bituminous concrete crack self-healing microcapsule and its
Preparation method.
Background technology
Crack is one of most commonly seen disease of bituminous paving, and it not only directly reduces Road surface quality and traffic safety
Property, also entering for moisture and provide inside road surface passage, accelerate the loose generation for waiting infringement, when serious, water is constantly oozed from crack
Enter sub-surface even roadbed, cause subgrade rating to decline, produce the diseases such as purt slurry, frost boiling；In addition, in traffic load
The lower crack tip of effect forms stress concentration, and at double or even tens times of growths, not only aggravation Fracture geometric size quickly increases stress
Long, and can greatly reduce fatigue life of pavement.Load fatigue, low-temperature shrink and semi-rigid type base reflection, are to form asphalt road
The main cause of facial cleft seam.But regardless of crack, the form of expression of initial period is microcrack, physical dimension be micron order very
To less, it is difficult to be detected；Under the coupling cycle effect of temperature and load, there is stress concentration in microcrack tip, causes which
Cyclic extension and contraction, make microcrack independent mutually be expanded and gradually develop into the macrocrack of insertion, eventually form
Through crack；If taken measures not in time, through crack area gradually can increase, the penetration of fracture is extended downwardly, in addition moisture
Entrance and the height that formed presses water souring, easily form pit, the frost boiling disease of loose and depth.
Lot of domestic and foreign research shows that Colophonium and asphalt have certain self-healing ability at relatively high temperatures, pass through
The pitch infiltration of crack two sides and diffusion, crack slowly can heal automatically.But the process and its slow, does not require nothing more than ring
Border temperature is higher and without Driving Loading.In operation, bituminous paving is exposed in the natural environment of complexity, high/low temperature and driving
Load Circulation, therefore only is not enough to allow crack to obtain timely automated reparation by the self-healing ability of Colophonium.Therefore, one is taken
Fixed technical measures greatly improve the self-healing ability of Colophonium and asphalt, are repaired during crack progressing timely automatedly
Crack, just can greatly suppress crack progressing speed, reduce the penetration of fracture and width, will certainly greatly improve the clothes of bituminous paving
Business level and service life.
At present, the research in terms of enhancing bituminous concrete spontaneous recovery behavior mainly has interpolation pulverized limestone, doughnut method.Add
Pulverized limestone increases to asphalt spontaneous recovery and performance, but has little effect；Although doughnut carries repair liquid method need not
Extra extraneous trigger condition and repair rate is high, but this kind of method, the drawbacks of have a lot, fiber is rigid material first, is dripping
During blue or green compound mix, fiber easy fracture, more mediating recipe discharge in advance, do not reach the purpose of more sum；Secondly, fiber radius are too
Little, doughnut manufacturing process is strict, and cost is too high, is unfavorable for spread.
In consideration of it, in terms of researchers are transferred to microcapsule consolidant sight.When microcrack is extended at microcapsule,
The regenerative agent of encapsulation material breaks, outflow will be caused not only to improve the property of Colophonium at crack while promoting crack
Place's Colophonium can realize good self-healing characteristics at room temperature or under lower temperature, so as to play the extension for delaying crack even
Repair the effect in crack completely, extend the fatigue life of bituminous paving.Then, existing crack self-healing microcapsule production cost
High, complicated process of preparation, is not widely applied.
Content of the invention
It is an object of the invention to provide a kind of bituminous concrete crack self-healing microcapsule and preparation method thereof, existing to overcome
Deficiency existing for the recovery technique of some Colophonium cracks；Microcapsule prepared by the present invention is can achieve without the need for additional trigger condition
The selfreparing in Colophonium crack, effectively improves the self-reparing capability of Colophonium.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of bituminous concrete crack self-healing microcapsule, is made up of capsule-core, cyst wall, lapping and solid dispersion；
The capsule-core is stored in cyst wall, and capsule-core and cyst wall are wrapped in wherein by lapping；Solid dispersion is wrapped in parcel material
Material periphery；Capsule-core, cyst wall, lapping and solid dispersion account for the mass percent of bituminous concrete crack self-healing microcapsule
Respectively：6-12%, 2-5%, 10-14% and 70-80%.
Further, the material of capsule-core is the bitumen regenerant for repairing bituminous concrete microcrack.
Further, cyst wall adopts porous expanded perlite.
Further, lapping is made up of epoxy resin, firming agent, diluent and dispersant；Lapping each component
Mass percent be：Epoxy resin 36-40%, firming agent 28-32%, diluent 28-32% and dispersant 1-2%.
Further, described solid dispersion adopts silicate 42.5R or 32.5R early-strength cement；Solid disperses material
Material acts primarily as peptizaiton, and provides certain intensity.
Further, described epoxy resin is E-51 type epoxy resin.
Further, described firming agent is modified fatty amine curing agent.
Further, described diluent is aliphatic glycidyl ether.
Further, described dispersant is the efficient wetting agent of succinic acid lipid synthetic.
A kind of preparation method of bituminous concrete crack self-healing microcapsule, comprises the following steps：
(1) cyst wall is put in core materials and is stood after immersion；
(2) epoxy resin, firming agent, diluent and dispersant are added in container by mass percentage, stir shape
Into report lapping；
(3) cyst wall for adsorbing core materials after standing in step (1) is added in the lapping in step (2), is stirred
Mix uniform；
(4) solid dispersion is subsequently adding, mix is uniform, is stood after disperseing microcapsule granule；
(5) spray water on microcapsule granule, obtains product bituminous concrete crack self-healing microcapsule after drying through maintenance.
Further, in step (1), soak time is 2h；Time of repose is 24h.
Further, in step (4), time of repose is 24h.
Further, the operation total time of step (2)-(4) is controlled within 15min.
Relative to prior art, the invention has the advantages that：Bituminous concrete crack self-healing microcapsule of the present invention
Being obviously improved for Colophonium fatigue behaviour can achieve without the need for special trigger condition, and can be remarkably reinforced Colophonium reviews one's lessons by oneself reactivation
Power, affects less on the key property of Colophonium itself；The microcapsule high temperature and mechanical stability of the present invention is good, Colophonium Crack failure
Wall material, so as to discharge bitumen regenerant, penetrating in Colophonium carries out asphalt-regenerating；The preparation method of the present invention is simple, into
This is low, suitable for large-scale promotion.
Further, after bituminous concrete occurs microcrack under load with environment coupled action, crack tip is produced
Stress concentration causes lapping to rupture, and core materials leak out to the microcrack of bituminous concrete, Ran Houyu from the hole of cyst wall
The asphalt material of microcrack both sides such as permeates, bonds at the effect, reaches the purpose for repairing microcrack.
It is the 5% (ratio with quality of asphalt mixtures that bituminous concrete crack self-healing microcapsule of the present invention is pressed mass ratio
Value) it is added in asphalt, prepare crack self-healing microcapsule asphalt；Then crack self-healing performance is tested,
Compared with plain asphalt compound, infiltration rate index reduces by 250%, and batch (-type) fatigue life improves 16.6%, cleavage strength
Than increasing by 15.2%,
Illustrate that microcapsule asphalt of the present invention has stronger crack self-healing effect.
Description of the drawings
The present invention is described further below in conjunction with the accompanying drawings；
Fig. 1 is microcapsule preparation method flow chart.
Specific embodiment
In order to deepen the understanding of the present invention, technical scheme is carried out further in conjunction with embodiment and experiment
Illustrate,
But the present invention is not limited only to following implementation situations.
Embodiment 1
A kind of bituminous concrete crack self-healing microcapsule, is made up of the raw material of following percentage by weight：Bitumen regenerant
8%, porous expanded perlite 2.8%, lapping 12.2%, solid dispersion 77%.
A kind of preparation method of bituminous concrete crack self-healing microcapsule, comprises the following steps：
The expanded perlite granule that 20g particle diameters are 1.18～2.36mm is weighed, by load weighted porous expanded perlite
Grain fully immersion 2h in 100 DEG C of beakers containing bitumen regenerant, absorbs bitumen regenerant about 57g, is put in and dries in pallet
Stand 24h；Take E-51 type epoxy resin, modified fatty amine curing agent 17.8g, diluent aliphatic glycidyl ether 17.0g, amber
The efficient wetting agent 0.6g of amber acid lipid synthetic, by above-mentioned material mixing and stirring into emulsion；It is subsequently adding make many
Hole expanded perlite (after absorption regeneration agent) 50g, stirs, and is subsequently adding silicate 42.5R intensity type cement 356.5g, is
Prevent epoxy resin intensity from being formed and require that 15min or so completes said process, be positioned over the place of drying and stand 24h.Use 1.18mm side
Hole sizer screens out unnecessary cement, sprays 50g drinking waters after spreading out, and after about 4h final set, intensity is formed, and drying obtains the micro- glue of product
Capsule.
By mass ratio is added in asphalt for 5% (ratio with quality of asphalt mixtures), prepares and split
Seam spontaneous recovery microcapsule asphalt (product 1), then tests crack self-healing performance, as a result such as table 1.By product 1 and common drip
Blue or green compound is compared, and infiltration rate index is reduced to 1.18 (reducing by 250%) by 4.13, and batch (-type) fatigue life improves 16.6%,
Ratio of split strength increases by 15.2%, illustrates that this kind of microcapsule asphalt has stronger crack self-healing effect.
Embodiment 2
A kind of bituminous concrete crack self-healing microcapsule, is made up of the raw material of following percentage by weight：Bitumen regenerant
10.0%, porous expanded perlite 4.0%, lapping 13.0%, solid dispersion 77.0%.
A kind of preparation method of bituminous concrete crack self-healing microcapsule, comprises the following steps：
The expanded perlite granule that 20g particle diameters are 1.18～2.36mm is weighed, by load weighted porous expanded perlite
Grain fully immersion 2h in 100 DEG C of beakers containing bitumen regenerant, absorbs bitumen regenerant about 50g, is put in and dries in pallet
Stand 24h；Take E-51 type epoxy resin 17.4g, modified fatty amine curing agent 14.7g, diluent aliphatic glycidyl ether
The efficient wetting agent 0.5g of 14.0g, succinic acid lipid synthetic, by above-mentioned material mixing and stirring into emulsion；It is subsequently adding system
Porous expanded perlite material (after the absorption regeneration agent) 50g for performing, stirs, is subsequently adding silicate 42.5R intensity types
For preventing epoxy resin intensity from being formed, cement 275.0g, requires that 15min or so completes said process, be positioned over the place of drying and stand
24h.Unnecessary cement is screened out with the square hole screen in 1.18mm apertures, 40g drinking waters, intensity shape after about 4h final set after spreading out, is sprayed
Into drying obtains product microcapsule.
By mass ratio is added in asphalt for 5% (ratio with quality of asphalt mixtures), prepares and split
Seam spontaneous recovery microcapsule asphalt (product 2), then tests crack self-healing performance, as a result such as table 1.
By 2 asphalt of product compared with plain asphalt compound, infiltration rate index is reduced to 1.35 by 4.13, intermittently
Formula fatigue life improves 15.0%, and Ratio of split strength increases by 12.1%, illustrates that this kind of microcapsule asphalt has stronger
Crack self-healing effect.
Embodiment 3
A kind of bituminous concrete crack self-healing microcapsule, is made up of the raw material of following percentage by weight：Bitumen regenerant
6.0%, porous expanded perlite 2.0%, lapping 14.0%, solid dispersion 78.0%.Asphalt mixtures modified by epoxy resin in lapping
Fat 36%, firming agent 32%, diluent 30% and dispersant 2%.Solid dispersion adopts 32.5R early-strength cement, remaining
Component is same as Example 1；Preparation method is same as Example 1.
Embodiment 4
A kind of bituminous concrete crack self-healing microcapsule, is made up of the raw material of following percentage by weight：Bitumen regenerant
12.0%, porous expanded perlite 5.0%, lapping 10.0%, solid dispersion 73.0%.Asphalt mixtures modified by epoxy resin in lapping
Fat 40%, firming agent 28%, diluent 31% and dispersant 1%.Each component is same as Example 1；Preparation method and embodiment 1
Identical.
Embodiment 5
A kind of bituminous concrete crack self-healing microcapsule, is made up of the raw material of following percentage by weight：Bitumen regenerant
11.0%, porous expanded perlite 5.0%, lapping 14.0%, solid dispersion 70.0%.Asphalt mixtures modified by epoxy resin in lapping
Fat 38%, firming agent 32%, diluent 28% and dispersant 2%.Solid dispersion adopts 32.5R early-strength cement, remaining
Component is same as Example 1；Preparation method is same as Example 1.
Embodiment 6
A kind of bituminous concrete crack self-healing microcapsule, is made up of the raw material of following percentage by weight：Bitumen regenerant
6.0%, porous expanded perlite 4.0%, lapping 10.0%, solid dispersion 80.0%.Asphalt mixtures modified by epoxy resin in lapping
Fat 38%, firming agent 30%, diluent 30% and dispersant 2%.Each component is same as Example 1；Preparation method and embodiment 1
Identical.
1 different microcapsules of table add asphalt index synopsis
In table, projects method of testing and experimental condition are as follows：
(1) infiltration speed trial
This test carries out artificial splitting using degree of stability instrument and makes seam, and is carried out with the high pressure infiltration equipment of Independent Development Design
This test.Experimental condition control is as follows：Hydraulic pressure 0.1Mpa, makes 5 DEG C of temperature of seam, and heal lateral pressure 1.0Mpa, healing time 6h,
Healing temperature 60 C.
(2) batch (-type) fatigue life
This test is tested using UTM testing machines, and experimental condition control is as follows：20 DEG C of temperature, intermittent time 0.032s, loading
Time 0.016s, Stress Control load mode, stress level 0.2.
(3) Ratio of split strength
This test carries out diametral compression test using stability testing instrument, and experimental condition control is as follows：20 DEG C of test temperature, healing
Lateral pressure 1.0Mpa, healing time 6h, heal temperature 60 C.
Claims (9)
1. a kind of bituminous concrete crack self-healing microcapsule, it is characterised in that：Disperseed by capsule-core, cyst wall, lapping and solid
Material is constituted；The capsule-core is stored in cyst wall, and capsule-core and cyst wall are wrapped in wherein by lapping；Solid dispersion is wrapped up
In lapping periphery；Capsule-core, cyst wall, lapping and solid dispersion account for the matter of bituminous concrete crack self-healing microcapsule
Amount percentage ratio is respectively：6-12%, 2-5%, 10-14% and 70-80%.
2. bituminous concrete crack self-healing microcapsule according to claim 1, it is characterised in that：The material of capsule-core be for
Repair the bitumen regenerant of bituminous concrete microcrack.
3. bituminous concrete crack self-healing microcapsule according to claim 1, it is characterised in that：Cyst wall is expanded using porous
Perlite.
4. bituminous concrete crack self-healing microcapsule according to claim 1, it is characterised in that：Lapping is by asphalt mixtures modified by epoxy resin
Fat, firming agent, diluent and dispersant composition；The mass percent of lapping each component is：Epoxy resin 36-40%, solid
Agent 28-32%, diluent 28-32% and dispersant 1-2%.
5. bituminous concrete crack self-healing microcapsule according to claim 1, it is characterised in that：Described solid dispersion
Using silicate 42.5R or 32.5R early-strength cement.
6. bituminous concrete crack self-healing microcapsule according to claim 4, it is characterised in that：Described epoxy resin is
E-51 type epoxy resin；Described firming agent is modified fatty amine curing agent.
7. bituminous concrete crack self-healing microcapsule according to claim 4, it is characterised in that：Described diluent is fat
Fat race glycidyl ether.
8. bituminous concrete crack self-healing microcapsule according to claim 4, it is characterised in that：Described dispersant is amber
Amber acid lipid synthetic.
9. the preparation method of the bituminous concrete crack self-healing microcapsule any one of a kind of claim 1 to 8, its feature
It is, comprises the following steps：
(1) cyst wall is put in core materials and is stood after immersion；
(2) epoxy resin, firming agent, diluent and dispersant are added in container by mass percentage, stirs to form report
Lapping；
(3) cyst wall for adsorbing core materials after standing in step (1) is added in the lapping in step (2), and stirring is
Even；
(4) solid dispersion is subsequently adding, mix is uniform, is stood after disperseing microcapsule granule；
(5) spray water on microcapsule granule, obtains product bituminous concrete crack self-healing microcapsule after drying through maintenance.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359257A (en) * | 2018-05-14 | 2018-08-03 | 重庆交通大学 | A kind of structure of warm mix regenerative agent |
| CN110510910A (en) * | 2019-09-26 | 2019-11-29 | 交通运输部公路科学研究所 | A kind of thin micro crack microcapsules self-repair material of the concrete that cyst wall is degradable |
| CN110591400A (en) * | 2019-10-29 | 2019-12-20 | 重庆中防德邦防水技术有限公司 | Flexible waterproof material capable of self-healing in water |
| CN110593051A (en) * | 2019-08-27 | 2019-12-20 | 江苏东交工程检测股份有限公司 | Pavement paving material and preparation method thereof |
| CN112408846A (en) * | 2020-11-19 | 2021-02-26 | 武汉理工大学 | Preparation method of shrinkage compensation type asphalt self-healing capsule |
| CN113434933A (en) * | 2021-06-25 | 2021-09-24 | 长安大学 | Simulation analysis method for breakage of microcapsules in asphalt mixture mixing process |
| CN114539792A (en) * | 2022-01-23 | 2022-05-27 | 山西省交通科技研发有限公司 | High-permeability regenerant suitable for in-situ heat regeneration and preparation method thereof |
| CN115233514A (en) * | 2022-08-02 | 2022-10-25 | 周伟 | Self-healing pavement structure and preparation method thereof |
| CN116082851A (en) * | 2023-01-05 | 2023-05-09 | 中交建筑集团有限公司 | Preparation of self-repairing modified asphalt with self-temperature adjusting function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965644A (en) * | 2014-05-13 | 2014-08-06 | 天津工业大学 | High-stability microcapsule used for asphalt self-repair |
| CN105036613A (en) * | 2015-06-25 | 2015-11-11 | 苏交科集团股份有限公司 | Crack pressure-sensitive solidification self-healing asphalt concrete, as well as preparation method and application method thereof |
-
2016
- 2016-10-27 CN CN201610959922.4A patent/CN106495543A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965644A (en) * | 2014-05-13 | 2014-08-06 | 天津工业大学 | High-stability microcapsule used for asphalt self-repair |
| CN105036613A (en) * | 2015-06-25 | 2015-11-11 | 苏交科集团股份有限公司 | Crack pressure-sensitive solidification self-healing asphalt concrete, as well as preparation method and application method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 柴子奇: "内嵌于沥青混合料的自修复胶囊性能评价", 《交通科技》 * |
| 田洋: "沥青混凝土疲劳损伤自愈合行为研究进展(5)——沥青自愈合微胶囊", 《石油沥青》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108359257B (en) * | 2018-05-14 | 2022-12-13 | 重庆交通大学 | Structure of warm-mixing regenerant |
| CN108359257A (en) * | 2018-05-14 | 2018-08-03 | 重庆交通大学 | A kind of structure of warm mix regenerative agent |
| CN110593051A (en) * | 2019-08-27 | 2019-12-20 | 江苏东交工程检测股份有限公司 | Pavement paving material and preparation method thereof |
| CN110593051B (en) * | 2019-08-27 | 2020-12-11 | 江苏东交工程检测股份有限公司 | Pavement paving material and preparation method thereof |
| CN110510910A (en) * | 2019-09-26 | 2019-11-29 | 交通运输部公路科学研究所 | A kind of thin micro crack microcapsules self-repair material of the concrete that cyst wall is degradable |
| CN110591400A (en) * | 2019-10-29 | 2019-12-20 | 重庆中防德邦防水技术有限公司 | Flexible waterproof material capable of self-healing in water |
| CN112408846A (en) * | 2020-11-19 | 2021-02-26 | 武汉理工大学 | Preparation method of shrinkage compensation type asphalt self-healing capsule |
| CN113434933A (en) * | 2021-06-25 | 2021-09-24 | 长安大学 | Simulation analysis method for breakage of microcapsules in asphalt mixture mixing process |
| CN113434933B (en) * | 2021-06-25 | 2023-05-16 | 长安大学 | Simulation analysis method for cracking of microcapsule in mixing process of asphalt mixture |
| CN114539792B (en) * | 2022-01-23 | 2022-11-08 | 山西省交通科技研发有限公司 | High-permeability regenerant suitable for in-situ thermal regeneration and preparation method thereof |
| CN114539792A (en) * | 2022-01-23 | 2022-05-27 | 山西省交通科技研发有限公司 | High-permeability regenerant suitable for in-situ heat regeneration and preparation method thereof |
| CN115233514A (en) * | 2022-08-02 | 2022-10-25 | 周伟 | Self-healing pavement structure and preparation method thereof |
| CN116082851A (en) * | 2023-01-05 | 2023-05-09 | 中交建筑集团有限公司 | Preparation of self-repairing modified asphalt with self-temperature adjusting function |
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