CN107022198A - A kind of bionical self-healing property pitch and preparation method thereof - Google Patents
A kind of bionical self-healing property pitch and preparation method thereof Download PDFInfo
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- CN107022198A CN107022198A CN201710161842.9A CN201710161842A CN107022198A CN 107022198 A CN107022198 A CN 107022198A CN 201710161842 A CN201710161842 A CN 201710161842A CN 107022198 A CN107022198 A CN 107022198A
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- 239000000463 material Substances 0.000 claims abstract description 45
- 238000002425 crystallisation Methods 0.000 claims abstract description 5
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- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 32
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 32
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 32
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 238000011161 development Methods 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005336 cracking Methods 0.000 abstract description 9
- 230000035876 healing Effects 0.000 abstract description 5
- 230000009442 healing mechanism Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
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- 239000000203 mixture Substances 0.000 description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 229910052500 inorganic mineral Inorganic materials 0.000 description 20
- 239000011707 mineral Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 14
- 230000018109 developmental process Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 201000010099 disease Diseases 0.000 description 9
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 7
- 230000007774 longterm Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 229920005610 lignin Polymers 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 239000004575 stone Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000013305 flexible fiber Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 231100000252 nontoxic Toxicity 0.000 description 4
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- 238000010438 heat treatment Methods 0.000 description 2
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- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
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- 239000011734 sodium Substances 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Civil Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention provides a kind of bionical self-healing property pitch and preparation method thereof.Bionical self-healing property pitch includes matrix pitch and bionical self-healing property asphalt modifier；Wherein, bionical self-healing property asphalt modifier includes self-healing component.The present invention is using the material at normal temperatures with dilatancy and autonomous proliferation crystallization as self-healing component, combined with matrix pitch common in this area, imitate human body healing mechanism so that obtained bionical self-healing property pitch is not on the premise of bitumen properties are influenceed so that road has the same autonomous healing function of similar human body.The bionical self-healing property pitch of the present invention has expansion, autonomous increment crystallization function, and preparation method is simple, production cost is low, and prepared bionical self-healing property pitch not only has autonomous healing crack, effectively reduces the effect of cracking, and does not influence other properties of pitch.
Description
Technical field
The present invention relates to road and construction material technical field of modification, more particularly, to a kind of bionical self-healing property pitch
And preparation method thereof.
Background technology
Transportation Infrastructure Construction is the foundation stone of national development, is ended to 2016, highway in China total kilometrage is up to 4,570,000
Kilometer, urban road accounts for the 1/3 of city total area, has nearly 200,000 kilometers of roads to carry out restoration and reconstruction engineering every year.Road
Disease, which takes place frequently, causes road maintenance input huge, while the trip to traffic safety and people brings significant impact.Road maintenance
Problem has caused extensive concern both domestic and external, in the big area of some traffic pressures, builds durable long-life road meaning
Justice is great.
According to investigation, crack on road is not only the main component of disease, and is the main inducing of other diseases.This project pair
Beijing-tianjin-hebei Region road has carried out fixed point investigation, as a result shows that flaw area accounts for more than the 50% of total disease area.Tackle road
Crack, the method generally used at present is that cementation of fissures processing is carried out after cracking occurs, and the method hysteresis quality is strong, time-consuming effort, carbon
Discharge capacity is big, pollutes environment, and cures the symptoms, not the disease, therefore reduces the effective ways that crack is only improvement road disease.
At present, the maintenance process that China's road engineering is used mostly manually is repaired, i.e., when crack, pit occurs in road surface
During etc. disease, by the way of workman's manual working.According to maintenance rule, to the use heated bitumen cementation of fissures of the slit width within 10mm
Or the emulsified asphalt cementation of fissures；Slit width uses particulate formula hot-mix asphalt mixture or Emulsified Asphalt Mixture joint filling in more than 10mm：
Asphalt surface course space is larger, the permeable serious or slight crack in road surface but pavement strength can meet build when requiring and be sealed on road surface
Layer.These maintenance methods can only of short duration solution problem of Cracking, not only can not fundamentally solve problem of Cracking, or even can not be effective
Prevent the further development of disease.
In this context, function road of the research and development with self-healing property turns into the inexorable trend of Road Development in recent years.
In the last few years, many countries have studied some self-healing property materials, and its strengths and weaknesses is as shown in table 1.
The domestic and international self-healing property pavement material skills inventory of table 1
For example, Publication No. CN102786258A patent of invention disclose a kind of crack self-healing bituminous concrete and its
Preparation method, the bituminous concrete includes coarse aggregate, fine aggregate, filler and pitch, also comprising rigid fiber and flexible fiber, just
Property fiber incorporation be coarse aggregate, fine aggregate, filler and pitch gross mass 0.50~2.5wt%, flexible fiber incorporation is
Coarse aggregate, fine aggregate, 0.10~0.35wt% of filler and pitch gross mass.The preparation method of the concrete：Weigh drying
Gather materials and be placed in material holding tray, be mixed uniform and be preheated to 180 DEG C in baking oven, filler is individually heated to 180 DEG C；Pitch is pre-
Heat is to 160~175 DEG C；Rigid fiber and flexible fiber measure on request be respectively dried it is standby；Rigid fiber is first incorporated into mixing
Mix and stir, then mixed and stirred with liquid bitumen in gathering materials, then mixed and stirred with filler, then mixed and stirred with flexible fiber, is finally molded.The invention
Make the cold cracking of bituminous paving be minimized and can self-healing, be prevented effectively from early-age crack, but fiber incorporation to concrete belt
To adversely affect, and concrete strength response rate, crack closure rate, durability and energy to failure etc. after repairing can not be determined.
Publication No. CN105198281A patent of invention discloses a kind of self-healing bituminous concrete and preparation method thereof,
The raw material of its mass fraction is constituted：1.5~2.5 parts of 100 parts of mineral aggregate, 5~6 parts of SBS modified pitch and magnetic metal.It is prepared
Method, comprises the following steps：1) the pre-heat treatment is carried out to mineral aggregate, modified pitch and magnetic metal respectively, respectively obtained after preheating
Mineral aggregate, modified pitch and magnetic metal；2) mineral aggregate after preheating, modified pitch and magnetic metal are mixed, mixed
Close material；3) forming processes are carried out to compound, that is, can obtain.Steel wool is set to generate heat by electromagnetic wave, so that soft pitch, makes drip
Blue or green road surface is healed again, but the process consumption mass energy of heating, accelerates the aging of bituminous concrete, severe contamination environment.
The content of the invention
(1) technical problem to be solved
The technical problem to be solved in the present invention is that road is also easy to produce under the collective effect of traffic loading and temperature change and split
Seam, and under the influence of Atmospheric precipitation, if handling not in time, the even more serious road disease such as pit, rut, purt slurry will be caused
Evil.
(2) technical scheme
The invention provides a kind of bionical self-healing property pitch, including matrix pitch and bionical self-healing property asphalt modifier；Its
In, bionical self-healing property asphalt modifier includes self-healing component.
There is provided including bionical self-healing property asphalt modifier and matrix pitch by imitating human body healing mechanism by the present invention
Bionical self-healing property pitch, bionical self-healing property asphalt roads material surfacing is configured using the Compositional type self-healing property pitch.Contain
Filling up for crack can be better achieved with matrix pitch compounding in the modifying agent of self-healing component.
In the present invention, self-healing component select normal temperature under have dilatancy and can autonomous proliferation crystallization material.In routine
Natural environment under or air in, can expand, the material substance of autonomous proliferation crystallization can be as self-healing group of the invention
Point.Normal temperature is 25 DEG C or so of temperature.
In order to be able to make crack preferably be padded, self-healing component of the invention is preferably swollen resin, expansion water-stop glue, swollen
One or more in swollen cement, expanded graphite.
Wherein, swollen resin is preferably high-hydroscopicity swollen resin.Super absorbent resin is a kind of new macromolecule material
Material, it can absorb the moisture of own wt hundred times to thousand times, nontoxic, harmless, pollution-free；Water absorbing capacity extra-heavy, water conservation energy
Power is extra-high, and absorb water point can not be extruded by simple physical method, and can release water, water suction repeatedly.
Water-swellable water-stop glue is to reform into own vol after the good rubber elastomer of restoration, immersion Yi Dan hardened
Expansion, filling space play certain water-stagnating effect.
The concrete prepared by expanding cement free swelling rate in water is 8 × 10-4~10 × 10-4, can be in concrete
0.2~0.6MPa seif-citing rate is set up, compensation is met and shrinks requirement, can reduce or prevent Shrinkage Cracking of Concrete.
This several material also can regard any several combinations of substances as self-healing component individually as self-healing component.
It is further preferred that self-healing component includes swollen resin and expanding cement, more preferably, self-healing component includes expansion
Resin and expanding cement, the weight of the two is than preferably 50-95:5-50；It is further preferred that the weight ratio of the two is 63-90:
10-37, more preferably 74-85:15-26.In aforementioned proportion, the instantaneous water-resisting ability of the compound prepared by pitch and
Long-term water-resisting ability is preferable.In the present invention, self-healing component can be the swollen resin and expanding cement of aforementioned proportion.
In order to improve the caking property of pitch and road surface, effectively prevent mineral aggregate from peeling off to come off, bionical self-healing property asphalt modifier
Also include anti-strip component, in order to can preferably be combined with above-mentioned self-healing component, improve the adhesiveness after both combine, improve warp
Anti-strip component is preferably calcium lignosulfonate, lignin in the pitch that modifying agent is obtained and the caking property on former road surface, the present invention
One or several kinds in sodium sulfonate and Petropols.
Calcium lignosulfonate is nontoxic, with good stability, dispersiveness and caking property.Sodium lignin sulfonate has good
Stability and dispersiveness, can adsorb on the surface of various solid particles.Petropols have good chemical stability, and
The characteristics of having regulation viscosity and good heat endurance, and it is cheap, it is nontoxic, it is environmentally friendly.This several material can be single respectively
Solely as anti-strip component, can also any several combinations of substances be regard as anti-strip component.When any several combinations of substances of selection
When, the proportioning of its various material can be selected arbitrarily, be required as long as the final content for the anti-strip component being formulated is met,
Regardless of the proportioning for selecting which kind of above-mentioned material or various materials, corresponding adhesion property is can reach, cement is prevented
The effect that compound is extruded is similar.
It is further preferred that anti-strip component includes calcium lignosulfonate, sodium lignin sulfonate and Petropols, three's
Weight ratio is 5-90:5-45:5-80, it is preferable that the weight of three is than preferably 10-35:15-30:35-75.In the present invention,
Anti-strip component can be calcium lignosulfonate, sodium lignin sulfonate and the Petropols of aforementioned proportion.
Or, anti-strip component includes calcium lignosulfonate and Petropols, and the weight ratio of the two is 20-50:50-80,
Preferably 40-50:50-60.In the present invention, anti-strip component can be for aforementioned proportion calcium lignosulfonate and oil tree
Fat.
Or, anti-strip component includes sodium lignin sulfonate and Petropols, and the weight ratio of the two is 40-50:50-60.
In the present invention, anti-strip component can be the sodium lignin sulfonate and Petropols of aforementioned proportion.
Or, anti-strip component includes calcium lignosulfonate and sodium lignin sulfonate, and the weight ratio of the two is 60-70:30-
40.In the present invention, anti-strip component can be the calcium lignosulfonate and sodium lignin sulfonate of aforementioned proportion.
In order to improve it is autonomous heal and prevent the effect of pavement cracking, in a preferred embodiment of the invention, this changes
Property agent include self-healing component 50-90 parts by weight and anti-strip component 10-50 parts by weight；Preferably, including self-healing component 60-85 weight
Measure part and anti-strip component 15-40 parts by weight；It is further preferred that including self-healing component 70-80 parts by weight and anti-strip component
20-30 parts by weight.
Wherein, in the present invention, parts by weight can be the unit of weight well known in the art such as μ g, mg, g, kg or
Its multiple, such as 1/10,1/100,10 times, 100 times.
Represented in modifying agent with mass percent, self-healing component is 50-90wt%, anti-strip component is 10-50wt%.
In the present invention, when the addition of self-healing component is less than 50%, then the effect of crack self-healing is poor；When the addition of self-healing component
Higher than 90%, then the effect of crack self-healing, which be there will be no, significantly improves or the effect of crack self-healing is basically unchanged, therefore continues
Self-healing component is added, causes the waste of raw material, cost is improved.And when the addition of anti-strip component is less than 10%, then adhere to
Effect is not good, and part of cement compound can ftracture；When the addition of anti-strip component is higher than 50%, then adhesive attraction be there will be no
Significantly improve or adhesive attraction is basically unchanged, therefore continue to add anti-strip component, cause the waste of raw material, improve into
This.
The self-healing component and anti-strip component of proper content are only added, the bionical self-healing property drip of optimum efficiency could be formed
Blue or green modifying agent, the bionical self-healing property asphalt modifier neither influences the normal usage function of road, and road is adequately achieved again certainly
The effect of healing.
In order that obtained bionical self-healing property pitch effectively absorbs road table moisture, crack is effectively blocked, self-healing effect is good,
In another preferred embodiment of the invention, the weight ratio of matrix pitch and bionical self-healing property asphalt modifier is 10-80:20-
90, preferably 20-70:30-80.
That is, the mass percent of each component is in bionical self-healing property pitch, matrix pitch 10-80%, the drip of bionical self-healing property
Blue or green modifying agent 20-90%；Preferably, matrix pitch 20-70%, bionical self-healing property asphalt modifier 30-80%.
In a preferred embodiment of the invention, in order to be able to more effectively absorb road table moisture, self-healing is further improved
Effect, it is 10-80 that bionical self-healing property pitch, which includes weight ratio,:20-90 matrix pitch and bionical self-healing property asphalt modifier；It is imitative
Raw self-healing property asphalt modifier includes self-healing component 50-90 parts by weight and anti-strip component 10-50 parts by weight；Self-healing component includes
Swollen resin and expanding cement, the weight ratio of the two are 50-95:5-50；Anti-strip component includes calcium lignosulfonate, lignin
Sodium sulfonate and Petropols, the weight ratio of three is 5-90:5-45:5-80.
In order to further improve self-healing performance, on the basis of above-described embodiment, the weight ratio of three in anti-strip component
Preferably 10-35:15-30:35-75.
In another preferred embodiment of the invention, in order to further improve performance, bionical self-healing property pitch includes weight
Amount is than being 10-80:20-90 matrix pitch and bionical self-healing property asphalt modifier；Bionical self-healing property asphalt modifier is included certainly
More component 50-90 parts by weight and anti-strip component 10-50 parts by weight；Self-healing component includes swollen resin and expanding cement, the two
Weight ratio be 50-95:5-50；Anti-strip component includes calcium lignosulfonate and Petropols, and the weight ratio of the two is 20-
50:50-80, preferably 40-50:50-60, or the anti-strip component include sodium lignin sulfonate and Petropols, the two
Weight ratio is 40-50:50-60, or the anti-strip component include calcium lignosulfonate and sodium lignin sulfonate, the weight of the two
Than for 60-70:30-40.
In one preferred embodiment, self-healing component is made up of swollen resin and expanding cement, the weight ratio of the two
For 63-90:10-37, more preferably 74-85:15-26.
In the present invention, based on AC-13 type asphalts ground surface material it is preferred, demonstrate,proved by lot of experiments
Bright, when choosing dilatancy resin and expanding cement compounded combination, bionical self-healing property asphalt is made, and (SHAC-13 is modified drip
Blue or green compound), its instantaneous water preventing ability and long-term self-healing property are optimal, can reach optimal crack self-healing effect.
According to an aspect of the present invention, the preparation method of above-mentioned bionical self-healing property pitch is additionally provided, including：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch in step (1), mixed and stirred, developed, produce.
Preferably, the temperature of mixing and stirring of the matrix pitch in step (2) and bionical self-healing property asphalt modifier is 110-160
DEG C, preferably 130-150 DEG C.
Preferably, the mixing time of step (2) mesostroma pitch and bionical self-healing property asphalt modifier is 5-60min,
Preferably 20-40min.
At a temperature of above-mentioned mix and stir and in the mixing time, matrix pitch can be sufficiently mixed with bionical self-healing property asphalt modifier
Uniformly.
Preferably, the developmental temperature of step (2) mesostroma pitch and bionical self-healing property asphalt modifier is 130-150
DEG C, development time is 20-40min.
In the present invention, development is usually placed in baking oven.
Preferably, the mixing method of matrix pitch and bionical self-healing property asphalt modifier is shear agitation, stir speed (S.S.)
For 2000-10000r/min.Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is preferably 4000-6000r/min.
In the present invention, the preparation method of above-mentioned bionical self-healing property asphalt modifier, is preferably included：Weighed certainly according to proportioning
More component and anti-strip component, are mixed and stirred, are produced.
Wherein, generally self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
In a preferred embodiment of the invention, the temperature of mixing and stirring of self-healing component and anti-strip component is 20-40 DEG C.
At a temperature of 20-40 DEG C, self-healing component and anti-strip component in the present invention are in the state flowed freely,
Good fluidity, is conducive to the two to be sufficiently mixed, and uniformly, the bionical self-healing property asphalt modifier of preparation is liquid, with good
Mobility.Even more preferably, temperature is mixed and stirred for 25-30 DEG C.It is highly preferred that self-healing component and anti-strip component mix and stir temperature
For normal temperature (25 DEG C or so).
In order that both are sufficiently mixed, the mixing time of self-healing component and the anti-strip component is 90-150s, preferably
It is that the mixing time is 100-120s.Within the above-mentioned mixing time, two kinds of materials can be sufficiently mixed uniformly.
(3) beneficial effect
(1) bionical self-healing property pitch proposed by the present invention with and preparation method thereof, by the modifying agent containing self-healing component with
Bitumen base organically combines, so as to get bionical self-healing property pitch on the premise of bitumen properties are not influenceed cause
Road has the same autonomous healing function of similar human body, effectively fills up road surface or the crack of roadbed, reduces rainwater to roadbed
Destruction, extends its service life technique simply, easy to operate, preparation process is pollution-free, and cost is low；
(2) the bionical self-healing property pitch prepared using this method can reach road certainly as cementitious matter paved roads
The effect of healing, therefore fundamentally solve road problem of Cracking；
(3) bionical self-healing property pitch of the invention, nontoxic, pollution-free, non-corrosiveness, raw material are common, are readily available, valency
Lattice are cheap, and self-healing property works well, environmentally friendly, with important economic implications and social effect.The bionical self-healing
Property pitch can be widely used for the regions such as urban road, street, airport, harbour and mine.
Embodiment
With reference to exemplary embodiments, the embodiment to the present invention is described in further detail.Following examples
For illustrating the present invention, but it is not limited to the scope of the present invention.
Involved all material is known commercially available prod in following examples.Wherein, expanding cement is UEA coagulations
Soil expansion agent is added in cement and is made, and UEA cement expansive materials are purchased from grand auspicious, and cement is purchased from Gao Xing, and swollen resin is emerging purchased from spring,
Matrix pitch is AC-13 type asphalts.
Embodiment 1
Present embodiments provide a kind of bionical self-healing property pitch, including matrix pitch and bionical self-healing property asphalt modifier.
Wherein, the mass percent of matrix pitch is that the 20%, mass percent of bionical self-healing property asphalt modifier is
80%.
Wherein, bionical self-healing property asphalt modifier, including self-healing component and anti-strip component.Self-healing component includes dilatancy
Resin and expanding cement, anti-strip component include calcium lignosulfonate, sodium lignin sulfonate and Petropols.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 80%, anti-strip group
The mass percent divided is 20%.
The mass percent of each material is in self-healing component：Swollen resin 50%, expanding cement 50%.
The mass percent of each material is in anti-strip component：Calcium lignosulfonate 35%, the and of sodium lignin sulfonate 30%
Petropols 35%.
Exemplified by preparing the bionical self-healing property pitches of 10000g, matrix pitch 2000g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 8000g.During bionical self-healing property asphalt modifier is prepared, self-healing component 6400g is needed, anti-strip component is needed
1600g。
The present embodiment additionally provides the preparation method of above-mentioned bionical self-healing property pitch, as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Step (1) mesostroma pitch and bionical self-healing property asphalt modifier mix and stir temperature be 110 DEG C, the mixing time be
60min；Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is 4000r/min.Step (3) mesostroma pitch and bionical self-healing
The developmental temperature of property asphalt modifier is 130 DEG C, development time is 40min.
Wherein, the preparation method of bionical self-healing property asphalt modifier, including：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
Wherein, the temperature of mixing and stirring of self-healing component and anti-strip component is 25 DEG C, and the mixing time is 100s.The rotating speed of agitator
For 40r/min.
Embodiment 2
Present embodiments provide a kind of bionical self-healing property pitch, including matrix pitch and bionical self-healing property asphalt modifier.
Wherein, the mass percent of matrix pitch is that the 10%, mass percent of bionical self-healing property asphalt modifier is
90%.
Wherein, bionical self-healing property asphalt modifier, including self-healing component and anti-strip component.Self-healing component includes dilatancy
Resin and expanding cement, anti-strip component include calcium lignosulfonate and Petropols.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 90%, anti-strip group
The mass percent divided is 10%.
The mass percent of each material is in self-healing component：Swollen resin 63%, expanding cement 37%.
The mass percent of each material is in anti-strip component：Calcium lignosulfonate 50% and Petropols 50%.
Exemplified by preparing the bionical self-healing property pitches of 10000g, matrix pitch 1000g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 9000g.During bionical self-healing property asphalt modifier is prepared, self-healing component 8550g is needed, anti-strip component is needed
450g。
The present embodiment additionally provides the preparation method of above-mentioned bionical self-healing property pitch, as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Step (1) mesostroma pitch and bionical self-healing property asphalt modifier mix and stir temperature be 160 DEG C, the mixing time be
5min；Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is 6000r/min.Step (3) mesostroma pitch and bionical self-healing property
The developmental temperature of asphalt modifier is 150 DEG C, development time is 20min.
Wherein, the preparation method of bionical self-healing property asphalt modifier, including：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
Wherein, the temperature of mixing and stirring of self-healing component and anti-strip component is 30 DEG C, and the mixing time is 110s.The rotating speed of agitator
For 40r/min.
Embodiment 3
Present embodiments provide a kind of bionical self-healing property pitch, including matrix pitch and bionical self-healing property asphalt modifier.
Wherein, the mass percent of matrix pitch is that the 70%, mass percent of bionical self-healing property asphalt modifier is
30%.
Wherein, bionical self-healing property asphalt modifier, including self-healing component and anti-strip component.Self-healing component includes dilatancy
Resin and expanding cement, anti-strip component include sodium lignin sulfonate and Petropols.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 70%, anti-strip group
The mass percent divided is 30%.
The mass percent of each material is in self-healing component：Swollen resin 74%, expanding cement 26%.
The mass percent of each material is in anti-strip component：Sodium lignin sulfonate 40% and Petropols 60%.
Exemplified by preparing the bionical self-healing property pitches of 10000g, matrix pitch 7000g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 3000g.During bionical self-healing property asphalt modifier is prepared, self-healing component 2100g is needed, anti-strip component is needed
900g。
The present embodiment additionally provides the preparation method of above-mentioned bionical self-healing property pitch, as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Step (1) mesostroma pitch and bionical self-healing property asphalt modifier mix and stir temperature be 130 DEG C, the mixing time be
40min；Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is 2000r/min.Step (3) mesostroma pitch and bionical self-healing
The developmental temperature of property asphalt modifier is 140 DEG C, development time is 30min.
Wherein, the preparation method of bionical self-healing property asphalt modifier, including：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
Wherein, the temperature of mixing and stirring of self-healing component and anti-strip component is 20 DEG C, and the mixing time is 140s.The rotating speed of agitator
For 40r/min.
Embodiment 4
Present embodiments provide a kind of bionical self-healing property pitch, including matrix pitch and bionical self-healing property asphalt modifier.
Wherein, the mass percent of matrix pitch is that the 80%, mass percent of bionical self-healing property asphalt modifier is
20%.
Wherein, bionical self-healing property asphalt modifier, including self-healing component and anti-strip component.Self-healing component includes dilatancy
Resin and expanding cement, anti-strip component include calcium lignosulfonate, sodium lignin sulfonate and Petropols.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 50%, anti-strip group
The mass percent divided is 50%.
The mass percent of each material is in self-healing component：Swollen resin 85%, expanding cement 15%.
The mass percent of each material is in anti-strip component：Calcium lignosulfonate 70%, the and of sodium lignin sulfonate 10%
Petropols 20%.
Exemplified by preparing the bionical self-healing property pitches of 10000g, matrix pitch 8000g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 2000g.During bionical self-healing property asphalt modifier is prepared, self-healing component 1000g is needed, anti-strip component is needed
1000g。
The present embodiment additionally provides the preparation method of above-mentioned bionical self-healing property pitch, as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Step (1) mesostroma pitch and bionical self-healing property asphalt modifier mix and stir temperature be 150 DEG C, the mixing time be
20min；Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is 10000r/min.Step (3) mesostroma pitch and bionical self-healing
The developmental temperature of property asphalt modifier is 130 DEG C, development time is 30min.
Wherein, the preparation method of bionical self-healing property asphalt modifier, including：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
Wherein, the temperature of mixing and stirring of self-healing component and anti-strip component is 25 DEG C, and the mixing time is 110s.The rotating speed of agitator
For 40r/min.
Embodiment 5
The present embodiment additionally provides a kind of bionical self-healing property pitch, including matrix pitch and above-mentioned bionical self-healing property pitch change
Property agent.
Wherein, the mass percent of matrix pitch is that the 40%, mass percent of bionical self-healing property asphalt modifier is
60%.
Wherein, bionical self-healing property asphalt modifier, including self-healing component and anti-strip component.Self-healing component includes dilatancy
Resin and expanding cement, anti-strip component include calcium lignosulfonate.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 60%, anti-strip group
The mass percent divided is 40%.
The mass percent of each material is in self-healing component：Swollen resin 90%, expanding cement 10%.
Exemplified by preparing the bionical self-healing property pitches of 10000g, matrix pitch 4000g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 6000g.During bionical self-healing property asphalt modifier is prepared, self-healing component 3600g is needed, anti-strip component is needed
2400g。
The present embodiment additionally provides the preparation method of above-mentioned bionical self-healing property pitch, as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Step (1) mesostroma pitch and bionical self-healing property asphalt modifier mix and stir temperature be 140 DEG C, the mixing time be
30min；Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is 4000r/min.Step (3) mesostroma pitch and bionical self-healing
The developmental temperature of property asphalt modifier is 140 DEG C, development time is 40min.
Wherein, the preparation method of bionical self-healing property asphalt modifier, including：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
Wherein, the temperature of mixing and stirring of self-healing component and anti-strip component is 25 DEG C, and the mixing time is 120s.The rotating speed of agitator
For 40r/min.
Embodiment 6
The present embodiment additionally provides a kind of bionical self-healing property pitch, including matrix pitch and above-mentioned bionical self-healing property pitch change
Property agent.
Wherein, the mass percent of matrix pitch is that the 30%, mass percent of bionical self-healing property asphalt modifier is
70%.
Wherein, bionical self-healing property asphalt modifier, including self-healing component and anti-strip component.Self-healing component includes dilatancy
Resin and expanding cement, anti-strip component include calcium lignosulfonate, sodium lignin sulfonate and Petropols.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 85%, anti-strip group
The mass percent divided is 15%.
The mass percent of each material is in self-healing component：Swollen resin 95%, expanding cement 5%.
The mass percent of each material is in anti-strip component：Calcium lignosulfonate 5%, sodium lignin sulfonate 80% and stone
Oleoresin 15%.
Exemplified by preparing the bionical self-healing property pitches of 10000g, matrix pitch 3000g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 7000g.During bionical self-healing property asphalt modifier is prepared, self-healing component 5950g is needed, anti-strip component is needed
1050g。
The present embodiment additionally provides the preparation method of above-mentioned bionical self-healing property pitch, as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Step (1) mesostroma pitch and bionical self-healing property asphalt modifier mix and stir temperature be 135 DEG C, the mixing time be
50min；Carry out mixing and stirring at a high speed using boxshear apparatus, stir speed (S.S.) is 5000r/min.Step (3) mesostroma pitch and bionical self-healing
The developmental temperature of property asphalt modifier is 135 DEG C, development time is 30min.
Wherein, the preparation method of bionical self-healing property asphalt modifier, including：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
Wherein, the temperature of mixing and stirring of self-healing component and anti-strip component is 25 DEG C, and the mixing time is 120s.The rotating speed of agitator
For 40r/min.
Embodiment 7
Present embodiments provide a kind of bionical self-healing property asphalt, including mineral aggregate and bionical self-healing property pitch.
Bionical self-healing property pitch includes matrix pitch and bionical self-healing property asphalt modifier.Bionical self-healing property asphalt modifier includes self-healing
Component and anti-strip component.
In the present embodiment, self-healing component include swollen resin and expanding cement, anti-strip component include calcium lignosulfonate,
Sodium lignin sulfonate and Petropols.
In the present embodiment, mineral aggregate is basalt.
In the bionical self-healing property asphalt of the present embodiment, the mass percent of mineral aggregate is 80%, bionical self-healing
Property pitch mass percent be 20%.
In the bionical self-healing property pitch of the present embodiment, the mass percent of matrix pitch is 20%, bionical self-healing property pitch
The mass percent of modifying agent is 80%.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 80%, anti-strip group
The mass percent divided is 20%.
Exemplified by preparing the bionical self-healing property asphalts of 10000g, mineral aggregate 8000g is needed, bionical self-healing property need to be prepared
Pitch 2000g.During bionical self-healing property pitch is prepared, matrix pitch 400g is needed, bionical self-healing property pitch need to be prepared and changed
Property agent 1600g.During bionical self-healing property asphalt modifier is prepared, self-healing component 1280g is needed, anti-strip component is needed
320g.In the present embodiment, the mass percent of the particle diameter of mineral aggregate and each particle diameter mineral aggregate is as shown in table 2.
The mass percent of the particle diameter of the mineral aggregate of table 2 and each particle diameter mineral aggregate
The preparation method of above-mentioned bionical self-healing property asphalt is as follows：
(1) bionical self-healing property pitch is prepared；
(2) bionical self-healing property pitch is mixed and stirred at a certain temperature with mineral aggregate.Mineral aggregate and bionical self-healing
Property pitch mix and stir temperature be 100 DEG C, the mixing time be 150s.
The preparation method of above-mentioned bionical self-healing property asphalt modifier is as follows：
(1) self-healing component and anti-strip component are weighed according to a certain percentage；
(2) self-healing component and anti-strip component are fitted into mixing apparatus and mixed and stirred.
The mass percent of each material is in self-healing component, swollen resin 50%, expanding cement 50%.In anti-strip component
The mass percent of each material is, calcium lignosulfonate 90%, sodium lignin sulfonate 5% and Petropols 5%.
The temperature of mixing and stirring of self-healing component and anti-strip component is 25 DEG C, and the mixing time is 110s.The rotating speed of agitator is
40r/min。
The preparation method of above-mentioned bionical self-healing property pitch is as follows：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch for having been heated to and mix and stir temperature and mixed
With；
(3) mixture of the matrix pitch after mixing and stirring and bionical self-healing property asphalt modifier is put into baking oven and sent out
Educate.
Matrix pitch and bionical self-healing property asphalt modifier mix and stir temperature be 110 DEG C, the mixing time be 60min；Matrix
The developmental temperature of pitch and bionical self-healing property asphalt modifier is 130 DEG C, development time is 40min.Carried out using boxshear apparatus high
Speed is mixed and stirred, and stir speed (S.S.) is 4000r/min.
Embodiment 8
Present embodiments provide a kind of bionical self-healing property asphalt and preparation method thereof, other steps are and embodiment
7 is identical, unlike：
In the bionical self-healing property asphalt of the present embodiment, the mass percent of mineral aggregate is 99%, bionical self-healing
Property pitch mass percent be 1%.
In the bionical self-healing property pitch of the present embodiment, the mass percent of matrix pitch is 40%, bionical self-healing property pitch
The mass percent of modifying agent is 60%.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 70%, anti-strip group
The mass percent divided is 30%.
The self-healing component of the present embodiment include swollen resin and expanding cement, anti-strip component include calcium lignosulfonate and
Petropols.The mass percent of each material is in self-healing component：Swollen resin 63%, expanding cement 37%.Anti-strip component
In the mass percent of each material be：Calcium lignosulfonate 20% and Petropols 80%.
Embodiment 9：
Present embodiments provide a kind of bionical self-healing property asphalt and preparation method thereof, other steps are and embodiment
7 is identical, unlike：
In the bionical self-healing property asphalt of the present embodiment, the mass percent of mineral aggregate is 90%, bionical self-healing
Property pitch mass percent be 10%.
In the bionical self-healing property pitch of the present embodiment, the mass percent of matrix pitch is 70%, bionical self-healing property pitch
The mass percent of modifying agent is 30%.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 85%, anti-strip group
The mass percent divided is 15%.
The self-healing component of the present embodiment includes swollen resin, expanding cement and combined, and anti-strip component includes lignin sulfonic acid
Calcium and sodium lignin sulfonate.The mass percent of each material is in self-healing component, swollen resin 74%, expanding cement 26%.It is anti-
The mass percent of each material is in peeling component, calcium lignosulfonate 65% and sodium lignin sulfonate 35%.
Embodiment 10：
Present embodiments provide a kind of bionical self-healing property asphalt and preparation method thereof, other steps are and embodiment
7 is identical, unlike：
In the bionical self-healing property asphalt of the present embodiment, the mass percent of mineral aggregate is 97%, bionical self-healing
Property pitch mass percent be 3%.
In the bionical self-healing property pitch of the present embodiment, the mass percent of matrix pitch is 80%, bionical self-healing property pitch
The mass percent of modifying agent is 20%.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 90%, anti-strip group
The mass percent divided is 10%.
The self-healing component of the present embodiment includes swollen resin, expanding cement and combined, and anti-strip component includes lignin sulfonic acid
Calcium, sodium lignin sulfonate and Petropols.The mass percent of each material is in self-healing component, swollen resin 85%, swelling water
Mud 15%.The mass percent of each material is in anti-strip component, calcium lignosulfonate 10%, sodium lignin sulfonate 15% and stone
Oleoresin 75%.
Embodiment 11：
Present embodiments provide a kind of bionical self-healing property asphalt and preparation method thereof, other steps are and embodiment
7 is identical, unlike：
In the bionical self-healing property asphalt of the present embodiment, the mass percent of mineral aggregate is 90%, bionical self-healing
Property pitch mass percent be 10%.
In the bionical self-healing property pitch of the present embodiment, the mass percent of matrix pitch is 10%, bionical self-healing property pitch
The mass percent of modifying agent is 90%.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 90%, anti-strip group
The mass percent divided is 10%.
In the present embodiment, self-healing component includes swollen resin, expanding cement and combined, and anti-strip component includes lignin sulfonic acid
Calcium, sodium lignin sulfonate and Petropols.The mass percent of each material is in self-healing component, swollen resin 90%, swelling water
Mud 10%.The mass percent of each material is in anti-strip component, calcium lignosulfonate 15%, sodium lignin sulfonate 45% and stone
Oleoresin 40%.
Embodiment 12：
Present embodiments provide a kind of bionical self-healing property asphalt and preparation method thereof, other steps are and embodiment
7 is identical, unlike：
In the bionical self-healing property asphalt of the present embodiment, the mass percent of mineral aggregate is 85%, bionical self-healing
Property pitch mass percent be 15%.
In the bionical self-healing property pitch of the present embodiment, the mass percent of matrix pitch is 30%, bionical self-healing property pitch
The mass percent of modifying agent is 70%.
In the bionical self-healing property asphalt modifier of the present embodiment, the mass percent of self-healing component is 75%, anti-strip group
The mass percent divided is 25%.
In the present embodiment, self-healing component includes swollen resin, expanding cement and combined, and anti-strip component includes lignin sulfonic acid
Calcium, sodium lignin sulfonate and Petropols.The mass percent of each material is in self-healing component, swollen resin 95%, swelling water
Mud 5%.The mass percent of each material is in anti-strip component, calcium lignosulfonate 34%, sodium lignin sulfonate 33% and stone
Oleoresin 33%.
Test example
Foundation《Highway engineering pitch and Asphalt Mixture Experiment code》(JTJ E20-2011) is to embodiment 1 to embodiment
Bionical self-healing property pitch prepared by 6 carries out the performance tests such as needle penetration, ductility, softening point, and test result is as shown in table 3.
The performance test results of the bionical self-healing property pitch of table 3
Bionical self-healing property asphalt prepared by embodiment 7 to embodiment 12 is subjected to anti-low-temperature cracking, high temperature dynamic steady
Fixed degree and freeze-thaw split test, test result is as shown in Table 4-6.From the point of view of test result, bionical self-healing property asphalt
Crack resistance at low-temperature, high temperature stability performance and freeze-thaw split performance are basically unchanged.
The crack resistance at low-temperature test result of the bionical self-healing property asphalt of table 4
| Embodiment is numbered | Maximum load (N) | Mid-span deflection (mm) |
| 90# plain asphalt compounds | 1994 | 2.30 |
| Embodiment 7 | 1982 | 2.27 |
| Embodiment 8 | 1978 | 2.22 |
| Embodiment 9 | 1975 | 2.25 |
| Embodiment 10 | 1974 | 2.29 |
| Embodiment 11 | 1978 | 2.30 |
| Embodiment 12 | 1981 | 2.27 |
The high temperature stability performance test result of the bionical self-healing property asphalt of table 5
The freeze-thaw split the performance test results of the bionical self-healing property asphalt of table 6
According to《Highway engineering pitch and Asphalt Mixture Experiment code》(JTG E20-211) prepares Marshall Test sample
Product, extrude the crack that width is 2mm, and the sample prepared is placed into 72h in dry environments by test specimen with Lu Qiangyi
Water preventing ability test is carried out afterwards.
Test specimen (m0, g) in dry environments, instantaneous water preventing ability test is carried out by the way of drip irrigation.I.e. to crack
Middle instillation 100g water, and record oozes out water, water percolating capacity the results are shown in Table 7.Ooze out water flowmeter and levy bionical self-healing property asphalt
Instantaneous water-resisting ability, instantaneous water-resisting ability is bigger, illustrates that self-healing effect is better.
The water percolating capacity of the bionical self-healing property asphalt of table 7
Test specimen (m0, g) in dry environments, long-term self-healing property test is carried out by the way of drip irrigation.Divide 4d every
It instills 100g water into crack, and record oozes out water respectively, and average water percolating capacity the results are shown in Table 8.Ooze out water flowmeter and levy bionical
The long-term self-healing ability of self-healing property asphalt, long-term self-healing ability is bigger, illustrates that self-healing effect is better, durability is better.
The water percolating capacity of the bionical self-healing property asphalt of table 8
| Embodiment is numbered | Average water percolating capacity (/ 100ml) |
| AC-13 plain asphalt compounds | 50.00 |
| Embodiment 7 | 10.00 |
| Embodiment 8 | 9.00 |
| Embodiment 9 | 7.00 |
| Embodiment 10 | 8.00 |
| Embodiment 11 | 9.50 |
| Embodiment 12 | 9.20 |
From the point of view of test result, the long-term self-healing property of bionical self-healing property asphalt is excellent.
Finally, method of the invention is only preferably embodiment, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements made etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of bionical self-healing property pitch, including matrix pitch and bionical self-healing property asphalt modifier；Wherein, the bionical self-healing
Property asphalt modifier include self-healing component.
2. bionical self-healing property pitch according to claim 1, it is characterised in that the self-healing component is swollen to have under normal temperature
Swollen property and the material of autonomous proliferation crystallization；
Preferably, the self-healing component is the one or more in swollen resin, expansion water-stop glue, expanding cement, expanded graphite；
It is further preferred that the self-healing component includes swollen resin and expanding cement, the weight of the two is than preferably 50-95:5-50.
3. bionical self-healing property pitch according to claim 1 or 2, it is characterised in that the bionical self-healing property asphalt modification
Agent also includes anti-strip component；The anti-strip component is one kind in calcium lignosulfonate, sodium lignin sulfonate, Petropols
Or it is a variety of.
4. bionical self-healing property pitch according to claim 3, it is characterised in that the bionical self-healing property asphalt modifier bag
Include self-healing component 50-90 parts by weight and anti-strip component 10-50 parts by weight；
Preferably, including self-healing component 60-85 parts by weight and anti-strip component 15-40 parts by weight；
It is further preferred that including self-healing component 70-80 parts by weight and anti-strip component 20-30 parts by weight.
5. the bionical self-healing property pitch according to any one of claim 1-4, it is characterised in that the matrix pitch is with imitating
The weight ratio of raw self-healing property asphalt modifier is 10-80:20-90, preferably 20-70:30-80.
6. bionical self-healing property pitch according to claim 4, it is characterised in that
The weight ratio of the matrix pitch and bionical self-healing property asphalt modifier is 10-80:20-90；
The bionical self-healing property asphalt modifier includes self-healing component 50-90 parts by weight and anti-strip component 10-50 parts by weight；
The self-healing component includes swollen resin and expanding cement, and the weight ratio of the two is 50-95:5-50；
The anti-strip component includes calcium lignosulfonate, sodium lignin sulfonate and Petropols, and the weight ratio of three is 5-90:
5-45:5-80。
7. bionical self-healing property pitch according to claim 4, it is characterised in that
The weight ratio of the matrix pitch and bionical self-healing property asphalt modifier is 10-80:20-90；
The bionical self-healing property asphalt modifier includes self-healing component 50-90 parts by weight and anti-strip component 10-50 parts by weight；
The self-healing component includes swollen resin and expanding cement, and the weight ratio of the two is 50-95:5-50；
The anti-strip component includes calcium lignosulfonate and Petropols, and the weight ratio of the two is 20-50:50-80, or it is described
Anti-strip component includes sodium lignin sulfonate and Petropols, and the weight ratio of the two is 40-50:50-60, or the anti-strip group
Dividing includes calcium lignosulfonate and sodium lignin sulfonate, and the weight ratio of the two is 60-70:30-40.
8. the preparation method of the bionical self-healing property pitch any one of claim 1-7, including：
(1) matrix pitch is heated to mixing and stirring temperature；
(2) bionical self-healing property asphalt modifier is added in the matrix pitch in step (1), mixed and stirred, developed, produce.
9. preparation method according to claim 8, it is characterised in that temperature is mixed and stirred in the step (2) for 110-160
DEG C, preferably 130-150 DEG C；Mixing time is 5-60min, preferably 20-40min；
And/or, mixed and stirred in the step (2) as shear agitation, stir speed (S.S.) is 2000-10000r/min, preferably 4000-
6000r/min。
10. preparation method according to claim 8 or claim 9, it is characterised in that developmental temperature is 130- in the step (2)
150 DEG C, development time is 20-40min.
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| CN116052809A (en) * | 2022-12-28 | 2023-05-02 | 北京工业大学 | Design method and device for bionic asphalt material |
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| CN107022198B (en) | 2019-10-11 |
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Application publication date: 20170808 Assignee: Beijing Huanchuang Ecological Technology Co.,Ltd. Assignor: Beijing University of Civil Engineering and Architecture Contract record no.: X2024980010965 Denomination of invention: A biomimetic self-healing asphalt and its preparation method Granted publication date: 20191011 License type: Common License Record date: 20240731 |