CN116042096A - Millimeter-grade road apparent rapid repair material and preparation method thereof - Google Patents
Millimeter-grade road apparent rapid repair material and preparation method thereof Download PDFInfo
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- CN116042096A CN116042096A CN202211462637.3A CN202211462637A CN116042096A CN 116042096 A CN116042096 A CN 116042096A CN 202211462637 A CN202211462637 A CN 202211462637A CN 116042096 A CN116042096 A CN 116042096A
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- Prior art keywords
- epoxy resin
- aqueous epoxy
- emulsified asphalt
- repair material
- organosilicon
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- 239000000463 material Substances 0.000 title claims abstract description 82
- 230000008439 repair process Effects 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- 239000003822 epoxy resin Substances 0.000 claims abstract description 79
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 79
- 239000010426 asphalt Substances 0.000 claims abstract description 65
- 239000000839 emulsion Substances 0.000 claims abstract description 27
- 239000004576 sand Substances 0.000 claims abstract description 20
- 239000003607 modifier Substances 0.000 claims abstract description 19
- 239000000203 mixture Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004593 Epoxy Substances 0.000 claims abstract description 13
- 239000000945 filler Substances 0.000 claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920006037 cross link polymer Polymers 0.000 claims abstract description 7
- 239000004205 dimethyl polysiloxane Substances 0.000 claims abstract description 7
- 230000004048 modification Effects 0.000 claims abstract description 7
- 238000012986 modification Methods 0.000 claims abstract description 7
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims abstract description 7
- -1 polydimethylsiloxane Polymers 0.000 claims abstract description 7
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims abstract description 7
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007142 ring opening reaction Methods 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 239000010703 silicon Substances 0.000 claims abstract description 6
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 33
- 238000002156 mixing Methods 0.000 claims description 13
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 7
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 claims description 5
- 125000000129 anionic group Chemical group 0.000 claims description 5
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 4
- 239000002250 absorbent Substances 0.000 claims description 4
- 230000002745 absorbent Effects 0.000 claims description 4
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- ZQBAKBUEJOMQEX-UHFFFAOYSA-N phenyl salicylate Chemical compound OC1=CC=CC=C1C(=O)OC1=CC=CC=C1 ZQBAKBUEJOMQEX-UHFFFAOYSA-N 0.000 claims description 4
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 239000003921 oil Substances 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical compound NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical group NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 2
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical group C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 2
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000012964 benzotriazole Substances 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 239000006229 carbon black Substances 0.000 claims description 2
- 238000009826 distribution Methods 0.000 claims description 2
- 229960000969 phenyl salicylate Drugs 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 3
- 239000010431 corundum Substances 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000000853 adhesive Substances 0.000 abstract description 5
- 230000001070 adhesive effect Effects 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 5
- 230000032683 aging Effects 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000006750 UV protection Effects 0.000 description 2
- 230000009102 absorption Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- ZXDDPOHVAMWLBH-UHFFFAOYSA-N 2,4-Dihydroxybenzophenone Chemical compound OC1=CC(O)=CC=C1C(=O)C1=CC=CC=C1 ZXDDPOHVAMWLBH-UHFFFAOYSA-N 0.000 description 1
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 1
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000000499 benzofuranyl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004846 water-soluble epoxy resin Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D195/00—Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Road Paving Structures (AREA)
Abstract
The invention relates to the technical field of road maintenance, and provides a millimeter-grade road apparent rapid repair material and a preparation method thereof, wherein the repair material comprises the following components: the organic silicon grafted water-based epoxy resin modified emulsified asphalt, fine sand, a functional modifier and a filler; the organosilicon grafted aqueous epoxy resin modified emulsified asphalt comprises emulsified asphalt, organosilicon grafted aqueous epoxy resin emulsion and an aqueous epoxy curing agent; the organosilicon grafted aqueous epoxy resin emulsion is prepared by ring opening modification of aqueous epoxy resin by gamma-aminopropyl triethoxy silane, vinyl polydimethylsiloxane/polymethyl siloxane silsesquioxane cross-linked polymer. The method is to uniformly mix the raw materials for preparation. The repairing material fully plays the advantages of the organosilicon grafted water-based epoxy resin in the modified emulsified asphalt, and can obtain a repairing layer which has high initial strength and high adhesive force and can rapidly open a pavement.
Description
Technical Field
The invention relates to the technical field of road maintenance, in particular to a millimeter-scale road apparent rapid repair material and a preparation method thereof.
Background
Along with the improvement of the asphalt pavement paving technology level, the defects such as ruts, pits, network cracks and the like are effectively treated gradually, the main defect forms affecting the road maintenance technology level assessment at present are various longitudinal and transverse cracks, and the microcracks of the pavement are difficult to repair by adopting a conventional slotting and crack pouring process, so that the asphalt pavement paving technology level is a defect form which is difficult to treat by adopting a conventional process.
The traditional fog seal technology adopts emulsified asphalt to be sprayed on the pavement in a fog form so as to achieve the preventive maintenance technology of the pavement for sealing the pavement structure and preventing the pavement aggregate from loosening. In order to solve the anti-slip problem, sand-containing fog seal technical construction is introduced, but due to limited adhesion and permeability of emulsified asphalt, the maintenance effect and service life of the emulsified asphalt are unsatisfactory, and further, in the prior art, water-based epoxy resin is also introduced into the fog seal, for example, in patent application CN102276996A, 20-70 parts by weight of water-based epoxy resin and water-based epoxy resin curing agent are uniformly mixed to be used as a component B of the fog seal material, and the component B is mixed with a component A containing asphalt and asphalt emulsifier, so that the adhesiveness and permeability of the fog seal material and an original pavement can be improved. However, since the curing reaction of the aqueous epoxy resin requires time, when the aqueous epoxy resin is introduced to improve the adhesion performance between the fog seal and the road surface, it is necessary to accelerate the drying time of the fog seal and to increase the initial strength of the fog seal as much as possible, thereby rapidly opening traffic.
In view of this, the present invention has been proposed.
Disclosure of Invention
The invention provides a millimeter-grade road apparent rapid repair material and a preparation method thereof, wherein the emulsified asphalt is modified by adopting specific organosilicon grafted water-based epoxy resin, so that the defects of a fog seal layer in the prior art are overcome, a repair layer (generally millimeter-grade, such as within 10 mm) with excellent performances such as high strength, high adhesive force, durability and the like is realized, and traffic can be rapidly opened.
The invention provides a road apparent repair material, comprising: the organic silicon grafted water-based epoxy resin modified emulsified asphalt, fine sand, a functional modifier and a filler;
the organosilicon grafted aqueous epoxy resin modified emulsified asphalt comprises a substance A and emulsified asphalt in a weight ratio of 10-50:50-90, wherein the substance A is a mixture of organosilicon grafted aqueous epoxy resin emulsion and aqueous epoxy curing agent;
the organosilicon grafted aqueous epoxy resin emulsion is obtained by ring opening modification of aqueous epoxy resin by gamma-aminopropyl triethoxy silane or vinyl polydimethylsiloxane/polymethyl siloxane silsesquioxane cross-linked polymer.
At present, the emulsified asphalt is modified by adopting materials such as epoxy resin, polyurethane and the like, but few techniques for improving the rapid repairing capability of the sand-containing fog sealing layer are very few, especially when the sand-containing fog sealing layer also needs to have better adhesiveness and permeability with stone, the improvement techniques have a plurality of difficulties. According to the invention, the specific organic silicon grafted aqueous epoxy resin is adopted, a certain amount of epoxy resin is added into an emulsified asphalt system for curing reaction, on one hand, a repairing layer with excellent properties such as high strength, high adhesive force and durability is obtained after the aqueous epoxy resin is fully cured, the service life of a pavement is greatly prolonged, on the other hand, the specific organic silicon grafted aqueous epoxy resin also reduces the curing time of the repairing layer, and the repairing material can be put into use after being paved on the pavement for 6 hours, and the strength reaches more than 1 MPa.
According to the road apparent repair material provided by the invention, the emulsified asphalt is anionic emulsified asphalt or nonionic emulsified asphalt.
The anionic emulsified asphalt or nonionic emulsified asphalt adopted by the invention can ensure that the comprehensive performance of the repairing material is excellent.
The road apparent repair material provided by the invention comprises the following components in percentage by weight: more than one of nano titanium dioxide, tackifying resin, an ultraviolet resistant absorbent and KN4010 naphthenic oil; the weight ratio of the functional modifier to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 5-11:65-150.
The introduction of the functional modifier into the repairing material has positive effects on improving the comprehensive performance of the repairing material, for example, nano titanium dioxide with the average particle size of 20-50 nm can be selected to absorb automobile exhaust, and KN4010 naphthenic oil is introduced into the repairing material to improve the ageing resistance, permeability and the like of the repairing material. In particular, when a specific amount of tackifying resin is incorporated into the repair material, the initial strength of the repair material is greatly increased.
According to the road apparent repair material provided by the invention, the tackifying resin is more than one of C5 (carbon five petroleum resin), C9 (carbon nine petroleum resin), coumarone and rosin; preferably, the weight ratio of the tackifying resin to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 1-5:65-150; for the repair material of the aqueous epoxy resin modified emulsified asphalt adopted by the invention, on one hand, the viscosity of the system needs to be controlled so that the repair material is easy to dry and is beneficial to the solidification of epoxy resin, and on the other hand, the repair material also needs to have higher initial strength and quickly adapt to traffic requirements.
The ultraviolet resistant absorbent is benzophenone (such as 2, 4-dihydroxybenzophenone), benzotriazole (such as 2- (2 '-hydroxy-5' -methylphenyl) benzotriazole) or phenyl salicylate.
According to the road apparent repair material provided by the invention, the filler comprises the following components: more than one of nano intercalated montmorillonite, diatomite, nano calcium carbonate and white carbon black; the weight ratio of the filler to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 1-15:65-150.
The filler is introduced into the repairing material, so that the curing of the aqueous epoxy resin can be promoted, but the adhesiveness and mechanical properties of the repairing material can be influenced if the addition amount is too large. The present invention has found that when diatomite is contained in the filler, the performance enhancing effect of the repair material is more remarkable because: the diatomite can adsorb moisture in the emulsified asphalt, promote demulsification of materials, shorten drying time and increase strength, can play a slow-release role on other functional modifiers, such as tail gas absorption, ultraviolet resistance, ageing resistance and the like, and can perform the functions of regenerating ageing asphalt and the like.
According to the road apparent repair material provided by the invention, when the particle size distribution of the diatomite is 200-800 meshes, the specific surface area is 40-65 m 2 At/g, the overall performance of the repair material is better.
According to the road apparent repair material provided by the invention, the fine sand is more than one of quartz sand, carborundum and basalt machine-made sand;
the fineness of the fine sand is 30-50 meshes;
the weight ratio of the fine sand to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 3-6:3-7.
The invention also provides a preparation method of the road apparent repair material, which comprises the following steps:
the preparation method comprises the steps of (1) ring-opening modification of aqueous epoxy resin by taking gamma-aminopropyl triethoxysilane or vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer as a modifier to obtain organosilicon grafted aqueous epoxy resin emulsion;
uniformly mixing the aqueous epoxy curing agent and the organosilicon grafted aqueous epoxy resin emulsion, and then addingTo the point ofUniformly mixing the emulsified asphalt to obtain organosilicon grafted aqueous epoxy resin modified emulsified asphalt;
dispersing the functional modifier with a solvent, adding the dispersed functional modifier into the filler, and uniformly mixing to obtain a blend;
and uniformly mixing the organosilicon grafted aqueous epoxy resin modified emulsified asphalt, the blend and the fine sand to obtain the road apparent repair material.
The organosilicon grafted aqueous epoxy resin is a thermosetting aqueous material, the strength of the organosilicon grafted aqueous epoxy resin is gradually increased along with the time, and the organosilicon grafted aqueous epoxy resin has extremely low or even no organic Volatile (VOC) content and little pollution to the environment. The invention takes the organosilicon grafted water-based epoxy resin emulsion as an emulsified asphalt modifier, has excellent physical and chemical properties, and can obviously improve the road performance of emulsified asphalt. In particular, when the organosilicon is introduced to carry out ring opening modification on the epoxy resin, the viscosity of the obtained organosilicon grafted aqueous epoxy resin emulsion is lower than that of the conventional epoxy resin, and when the organosilicon grafted aqueous epoxy resin emulsion is used for a pavement, the construction of the repairing material is facilitated, moisture in the epoxy resin in the repairing material is easier to escape during the curing reaction, the organosilicon grafted aqueous epoxy resin emulsion has the capability of rapid demulsification and forming, the drying time is greatly shortened, the repairing pavement can be rapidly brought into a use state, and the thermal stability, the water resistance, the adhesive force, the wear resistance, the permeability and the mechanical property of the modified emulsified asphalt are improved to different degrees, so that the modified emulsified asphalt has good effects of rapid repairing of microcrack diseases and preventive maintenance of the asphalt pavement.
The mixing of various materials in the invention can be carried out in a stirring manner, for example, the uniform mixing of the blend can be obtained by stirring for 5-10 min, and the uniform mixing of the fine sand and other materials can be realized by stirring for 130-150 s.
According to the preparation method of the road apparent repair material provided by the invention, the solid content of the aqueous epoxy resin is 50-100%;
the solid content of the organosilicon grafted aqueous epoxy resin emulsion is 50-60%, and the epoxy equivalent is 185-190; the organosilicon grafted aqueous epoxy resin modified emulsified asphalt prepared by adopting the organosilicon grafted aqueous epoxy resin emulsion has high strength and good flexibility.
According to the preparation method of the road apparent repair material provided by the invention, the water-based epoxy curing agent is diethylenetriamine or triethylenetetramine.
According to the millimeter-scale road apparent rapid repair material provided by the invention, the organic silicon grafted water-based epoxy resin is adopted, so that the curing reaction of the epoxy resin is increased in an emulsified asphalt system, the adhesiveness with stone is improved, the permeability of the material is improved, the viscosity of a repair material system is reduced, the drying of the repair material is promoted, the curing time of the epoxy resin is shortened, the excellent performances such as high strength, high adhesive force and durability are obtained through the water-based epoxy resin, the service life of a road surface is greatly prolonged, and the material can be rapidly applied.
According to the millimeter-scale road apparent rapid repair material provided by the invention, the tackifying resin is introduced into the material, so that the initial strength of the material is improved, and the traffic is rapidly opened; the method can also avoid the defects of high temperature sensitivity, insufficient bonding capability, poor durability and the like of the traditional emulsified asphalt material, simultaneously retain the advantages of low pollution and easy construction operation of the emulsified asphalt, and has the advantages of high construction speed, short curing time, environmental pollution reduction, construction condition improvement and the like compared with the traditional hot-mix mixture.
The millimeter-scale road apparent rapid restoration material provided by the invention has the characteristic of normal-temperature construction, the functional modifier is blended with the filler, diatomite can fully play the roles of adsorbing moisture in emulsified asphalt, promoting demulsification and strength increase of the material, realizing slow release of the functional modifier, such as tail gas absorption, ultraviolet resistance and aging resistance, and regenerating aged asphalt.
The preparation method of the millimeter-scale road apparent rapid restoration material provided by the invention has the advantages of simple process flow and wide application range.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The specific techniques or conditions are not identified in the examples and are described in the literature in this field or are carried out in accordance with the product specifications. The reagents or equipment used were conventional products available for purchase by regular vendors without the manufacturer's attention.
The aqueous epoxy resin in the embodiment of the present invention may be a water-soluble epoxy resin or a standard liquid epoxy resin, such as E20.
The viscosity (25 ℃, cst) of the vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer in the embodiment of the invention is 80 ten thousand, and the solid content is 14%.
The average particle diameter of the nano titanium dioxide in the embodiment of the invention is 35nm.
The diatomite in the embodiment of the invention has the average grain diameter of 600 meshes and the specific surface area of 55m 2 /g。
The fine sand in the embodiment of the invention is quartz sand; the fineness of the fine sand is 40 meshes.
Example 1 Silicone grafted waterborne epoxy emulsion
The preparation process of the organosilicon grafted water-based epoxy resin emulsion comprises the following steps:
10g of epoxy resin E20 (solid content 100%) was added to 200ml of a mixed solvent composed of N-butanol and ethylene glycol butyl ether in a mass ratio of 1:1, and dried N 2 Stirring and heating to 115 ℃ under the protection of (2) to obtain a first mixed solution;
then, 200ml of mixed solution consisting of methacrylic acid, styrene, butyl acrylate and benzoyl peroxide in a weight ratio of 3:2:2:0.015 is continuously added into the first mixed solution in a dropwise manner within 2 hours, and the second mixed solution is obtained after heat preservation reaction for 4 hours;
then, cooling the second mixed solution to 50 ℃, slowly dripping 20g of gamma-aminopropyl triethoxysilane into the second mixed solution, and reacting for 1h at a constant temperature to obtain a third mixed solution;
and finally, dropwise adding 20ml of a mixed solution of N, N-dimethylethanolamine and deionized water in a volume ratio of 1:1 into the third mixed solution at 50 ℃, and rapidly stirring for 1h to obtain the organosilicon grafted waterborne epoxy resin emulsion.
Example 2 Silicone grafted waterborne epoxy emulsion
The preparation process of the organosilicon grafted aqueous epoxy resin emulsion is basically the same as that of the example 1, except that: 20g of gamma-aminopropyl triethoxysilane is replaced by vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer to obtain the organosilicon grafted aqueous epoxy resin emulsion.
The silicone grafted aqueous epoxy resin emulsions prepared in example 1 and example 2 have a solids content of 50 to 60% and an epoxy equivalent of 185 to 190.
Examples 3 to 5 road apparent repair materials
The preparation method of the road apparent repair material comprises the following specific steps of:
(1) Uniformly mixing the aqueous epoxy hardener with the organosilicon grafted aqueous epoxy resin emulsion prepared in the embodiment 1, and then adding the mixture into emulsified asphalt to uniformly mix the mixture to obtain organosilicon grafted aqueous epoxy resin modified emulsified asphalt;
(2) Dispersing the functional modifier with a solvent, adding the dispersed functional modifier into the filler, and uniformly mixing to obtain a blend;
(3) And (3) uniformly mixing the organosilicon grafted aqueous epoxy resin modified emulsified asphalt obtained in the step (1), the blend obtained in the step (2) and the fine sand to obtain the road apparent repair material.
TABLE 1
Example 6 road apparent repair Material
The preparation method of the road apparent repair material is basically the same as that of example 3, except that: the rosin resin was replaced with C5.
Example 7 road apparent repair Material
The preparation method of the road apparent repair material is basically the same as that of example 3, except that: the silicone grafted aqueous epoxy resin emulsion prepared in example 1 was replaced with the silicone grafted aqueous epoxy resin emulsion prepared in example 2.
Example 8 road apparent repair Material
The preparation method of the road apparent repair material is basically the same as that of example 3, except that: rosin resin was replaced with coumarone.
Example 9 road apparent repair Material
The preparation method of the road apparent repair material is basically the same as that of example 3, except that: the anionic emulsified asphalt is replaced with nonionic emulsified asphalt.
Example 10 road apparent repair Material
The preparation method of the road apparent repair material is basically the same as that of example 3, except that: the diatomaceous earth was replaced with nano intercalated montmorillonite.
Comparative example 1
A preparation method of a repairing material is to uniformly stir 645g of anionic emulsified asphalt and 536g of fine sand.
The repair materials prepared in examples 1 to 10 and comparative example 1 were sprayed in an amount of 1kg/m 2 The asphalt pavement is cured according to the dosage, and the curing and performance test are carried out according to the specifications of the highway engineering asphalt and asphalt mixture test procedure (JTJ E20-2011) and the highway asphalt pavement curing technical specification (JTG 5142-2019). The test results are shown in Table 2, wherein 6h of bonding strength refers to the bonding strength of the repair material after being sprayed on the road surface for 6 hours, and bonding strength refers to the bonding strength of the repair material after being completely cured.
TABLE 2
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A road apparent repair material, comprising: the organic silicon grafted water-based epoxy resin modified emulsified asphalt, fine sand, a functional modifier and a filler;
the organosilicon grafted aqueous epoxy resin modified emulsified asphalt comprises an A component and emulsified asphalt in a weight ratio of 10-50:50-90, wherein the A component is a mixture of organosilicon grafted aqueous epoxy resin emulsion and aqueous epoxy curing agent;
the organosilicon grafted aqueous epoxy resin emulsion is prepared by ring opening modification of aqueous epoxy resin by gamma-aminopropyl triethoxy silane, vinyl polydimethylsiloxane or polymethyl siloxane silsesquioxane cross-linked polymer.
2. The road apparent repair material of claim 1, wherein the emulsified asphalt is an anionic emulsified asphalt or a nonionic emulsified asphalt.
3. The road apparent repair material according to claim 1 or 2, wherein the functional modifier comprises: more than one of nano titanium dioxide, tackifying resin, an ultraviolet resistant absorbent and KN4010 naphthenic oil; the weight ratio of the functional modifier to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 5-11:65-150.
4. The road apparent repair material according to any one of claims 3, wherein the tackifying resin is one or more of C5, C9, coumarone and rosin; preferably, the weight ratio of the tackifying resin to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 1-5:65-150;
the ultraviolet resistant absorbent is diphenyl ketone, benzotriazole or phenyl salicylate.
5. The road apparent repair material according to any one of claims 1 to 4, characterized in that the filler comprises: more than one of nano intercalated montmorillonite, diatomite, nano calcium carbonate and white carbon black; the weight ratio of the filler to the organosilicon grafted aqueous epoxy resin modified emulsified asphalt is 1-15:65-150.
6. The apparent road restoration material according to claim 5, wherein the diatomite has a particle size distribution of 200-800 meshes and a specific surface area of 40-65 m 2 /g。
7. The road apparent repair material according to any one of claims 1 to 6, wherein the fine sand is one or more of quartz sand, corundum and basalt machine-made sand;
the fineness of the fine sand is 30-50 meshes.
8. The method for producing a road apparent repair material according to any one of claims 1 to 7, comprising:
the preparation method comprises the steps of taking gamma-aminopropyl triethoxysilane or vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane cross-linked polymer as a modifier to carry out ring opening modification on aqueous epoxy resin to obtain organosilicon grafted aqueous epoxy resin emulsion;
uniformly mixing a water-based epoxy curing agent and the organosilicon-grafted water-based epoxy resin emulsion, and then adding the mixture into emulsified asphalt to uniformly mix to obtain organosilicon-grafted water-based epoxy resin modified emulsified asphalt;
dispersing the functional modifier with a solvent, adding the dispersed functional modifier into the filler, and uniformly mixing to obtain a blend;
and uniformly mixing the organosilicon grafted aqueous epoxy resin modified emulsified asphalt, the blend and the fine sand to obtain the road apparent repair material.
9. The method for producing a road apparent repair material according to claim 8, wherein the solid content of the aqueous epoxy resin is 50 to 100%; the solid content of the organosilicon grafted aqueous epoxy resin emulsion is 50-60%, and the epoxy equivalent is 185-190.
10. The method for producing a road apparent repair material according to claim 8 or 9, wherein the aqueous epoxy curing agent is diethylenetriamine or triethylenetetramine.
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