CN104371579A - Waterproof tack coat of cement concrete bridge floor and preparation method of said tack coat - Google Patents
Waterproof tack coat of cement concrete bridge floor and preparation method of said tack coat Download PDFInfo
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- CN104371579A CN104371579A CN201410719140.4A CN201410719140A CN104371579A CN 104371579 A CN104371579 A CN 104371579A CN 201410719140 A CN201410719140 A CN 201410719140A CN 104371579 A CN104371579 A CN 104371579A
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Abstract
The invention relates to a waterproof tack coat material of a cement concrete bridge floor. The waterproof tack coat material is composed of asphalt base emulsion and rubber base emulsion, wherein the asphalt base emulsion accounts for 60-90% of the total mass, and the balance is the rubber base emulsion. The emulsified asphalt prepared by the waterproof tack coat material has the advantages that formation speed is high, and resultantly construction efficiency is improved; bonding strength is high and equal to that of water-borne epoxy resin asphalt; cost is low and equal to a half of that of the water-borne epoxy resin asphalt; production process is simple and popularization and application are facilitated.
Description
Technical field
The present invention relates to water-proof bond material, particularly relate to Cement Concrete bridge deck water-proof tack coat and preparation method thereof.
Background technology
Deck paving system comprises sub-layer decking, water-proof tack coat and upper layer asphalt mixture paving course from top to bottom successively.Deck paving is the important component part of bridge structure, be highway pavement is meet the extension of its functional requirement on bridge.The quality of pave-load layer quality directly affects travel safety, comfortableness, the economic benefit of weather resistance and investment and social benefit.Wherein, water-proof tack coat is the important component part of Bridge Surface Paving by Cement, and waterproof layer, except needing the object reaching waterproof, also needs the effect reaching interlaminar bonding simultaneously.Due to the vital role of bridge deck water-proof tack coat in Deck pavement, water-proof bond material for bridge deck pavement huge number, mainly comprises waterproof roll class, film class, emulsified bitumen, structural water-proof tack coat, aqueous epoxy resins asphalt waterproofing tack coat etc.
Wherein waterproof roll, smear class, emulsified bitumen class uses in deck paving in early days, later stage engineering practice proves that these water-proof tack coats are poor for cohesive strength during Cement Concrete bridge floor, and effect is poor.And structural water-proof tack coat, namely by the mode of heat spray modifying asphalt and spreading rubble, better, but due to the existence of rubble, the waterproof action in the water-proof tack coat of destruction, waterproof effect is poor for this structural water-proof tack coat bond effect.The more effect of current application is preferably aqueous epoxy resins tar cement concrete bridge deck water-proof tack coat, due to epoxy resin to there is cohesive strength high, film-formation result is good simultaneously.But aqueous epoxy resins is expensive, and complex manufacturing, and shaping strength is slow, therefore, is difficult to large-scale promotion.
Summary of the invention
The object of the present invention is to provide a kind of novel Cement Concrete bridge deck water-proof tack coat material and preparation method thereof, the material provided has and aqueous epoxy resins cohesive strength shoulder to shoulder, but its production technique is simple, cheap, and spray easily, shaping strength is fast.
For achieving the above object, a kind of Cement Concrete bridge deck water-proof tack coat material of the present invention is made up of asphaltic base emulsion and rubber-based emulsion, and wherein shared by asphaltic base emulsion, the per-cent of described material total mass is 60% ~ 90%, and remainder is rubber-based emulsion.
Further, asphaltic base emulsion to be solid content be 40% ~ 60% low grade petroleum pitch emulsion, 25 DEG C of Saybolt viscosities are 40s ~ 100s.
Further, the penetration degree of the evaporation residue of asphaltic base emulsion is 10dmm ~ 30dmm, and softening temperature is for being greater than 65 DEG C.
Further, a kind of preferred asphaltic base emulsion, comprises the following ingredients accounting for described asphaltic base emulsion total mass per-cent: 40% ~ 60% low grade pitch, 0 ~ 3% short emulsifying additive, 0 ~ 3% properties-correcting agent, 0.2% ~ 2% asphalt emulsifier, 0.2 ~ 2% acid-base modifier, Yu Weishui.
For above-mentioned preferred asphaltic base emulsion, wherein:
Short emulsifying additive is polyphosphoric acid, and in polyphosphoric acid, H3PO4 content is 105 ~ 115%;
Properties-correcting agent is methylene radical polymkeric substance, and its fusing point is 90 ~ 140 DEG C; Asphalt emulsifier is, cation asphalt emulgent or anionic asphalt emulsion one wherein;
Acid-base modifier is the one in hydrochloric acid, phosphoric acid, sulfuric acid, sodium hydroxide.
Further, the rubber content of rubber-based emulsion is 40% ~ 70%.
Above-mentioned rubber-based emulsion is the one in nature rubber latex or synthetic rubber latex, or is mixed to form with any ratio by nature rubber latex and synthetic rubber latex.
Further, above-mentioned synthetic rubber latex is the one in isoprene rubber latex, styrene-butadiene latex, nitrile rubber, butadiene latex, isobutylene-isoprene latex, polychloroprene latex, ethylene propylene rubber latex, acrylate glue Ruzhong, or by above-mentioned each latex two kinds or two kinds be mixed to form with any ratio.
The described water-proof binding layer material be made up of asphaltic base emulsion and rubber-based emulsion, its preparation method comprises the steps:
(1) asphaltic base emulsion and rubber-based emulsion are heated to 50 DEG C ~ 55 DEG C simultaneously, the temperature that both maintenances are identical;
(2) in 1 ~ 2 hour, slow for rubber-based emulsion equivalent is at the uniform velocity added to asphaltic base emulsion, then keeps stirring 1-2 hour, obtain described Cement Concrete bridge deck water-proof tack coat material.
Prepare described emulsified bitumen by the inventive method and there is following beneficial effect:
1) form intensity fast, thus greatly improve operating efficiency;
2) cohesive strength is formed high, suitable with aqueous epoxy resins pitch.
3) low price, is equivalent to the half of aqueous epoxy resins pitch;
4) production technique is simple, is conducive to applying.
Embodiment
Cement Concrete bridge deck water-proof tack coat material of the present invention, is composited by asphaltic base emulsion and rubber-based emulsion, and wherein asphaltic base emulsion accounts for 60% ~ 90% of described water-proof binding layer material total mass, and remaining is rubber-based emulsion.And asphaltic base emulsion is solid content be 40% ~ 60% low grade petroleum pitch emulsion, this kind of solid content low grade petroleum pitch emulsion can be bought or make acquisition by oneself.Below in conjunction with embodiment, Cement Concrete bridge deck water-proof tack coat material of the present invention and preparation process are elaborated, to explain the present invention further.
one, embodiment is prepared
embodiment 1
Asphaltic base emulsion in the present embodiment is selected from the NTTSS-1H low grade bitumen emulsion that Blacklidge Emulsion company produces, and 25 DEG C of Saybolt viscosities are 43s, and evaporation residue content is 50%, and penetration degree is 12dmm, and softening temperature is 68 DEG C; Rubber-based emulsion adopts positively charged ion styrene-butadiene latex (market is purchased), and its solid content is 65%.
Above-mentioned two kinds of emulsions are taken by following weight
NTTSS-1H 90kg
Styrene-butadiene latex 10kg
The NTTSS-1H taken and styrene-butadiene latex are heated to 55 DEG C, styrene-butadiene latex is added; adding of styrene-butadiene latex all measured to add lentamente in 40 minutes, can obtain the water-proof binding layer material of the present embodiment after carrying out the stirring of 1 hour at a constant temperature under emulsified bitumen whipped state.
embodiment 2
Asphaltic base emulsion in the present embodiment is selected from the NTCQS-1hLM low grade bitumen emulsion that Asphalt emulsion company produces, and this asphaltic base emulsion 25 DEG C of Saybolt viscosities are 35s, and evaporation residue content is 52%, and penetration degree is 11dmm, and softening temperature is 70.6 DEG C; The mixed rubber emulsion that rubber-based emulsion adopts nature rubber latex and isoprene rubber latex to be mixed to form, its solid content is 65%.
Above-mentioned two kinds of emulsions are taken by following weight
NTCQS-1hLM 50kg
Isoprene rubber latex 25kg
Nature rubber latex 25kg
The NTCQS-1hLM taken and isoprene rubber latex, nature rubber latex are heated to 55 DEG C, mixed rubber emulsion is added under NTCQS-1hLM whipped state, adding of mixed rubber emulsion all measured to add lentamente in 1 hour, can obtain the water-proof binding layer material of the present embodiment after carrying out the stirring of 2 hours at a constant temperature.
embodiment 3
The homemade a kind of hard emulsified bitumen of asphaltic base emulsion in the present embodiment is made, and this emulsified bitumen is obtained by following step.
First be the preparation of intermediate materials, choose: No. 30 petroleum pitch are as low grade pitch, and its penetration degree is 15dmm, and softening temperature is 93 DEG C; H3PO4 content is that the polyphosphoric acid of 105% is as short emulsifying additive; Fusing point is that the polyethylene wax of 135 DEG C is as properties-correcting agent; Asphalt emulsifier is selected and is split soon soon coagulate type, and the present embodiment selects the cation asphalt emulgent EM44 of Akzo Nobel company; Acid-base modifier selects ortho-phosphoric acid.Above-mentioned each material and water take by following weight:
No. 30 petroleum pitch 60kg
H3PO4 content is the polyphosphoric acid 1kg of 105%
Fusing point is the polyethylene wax 3kg of 135 DEG C
EM44 0.2kg
Ortho-phosphoric acid 0.2kg
Water 35.6kg
Take No. 30 petroleum pitch are placed in agitator, and 170 DEG C are heated to it, start to stir, add the H taken simultaneously
3pO
4content is the polyphosphoric acid of 105%, continuously stirring 2h, and polyphosphoric acid and pitch are fully reacted, and keeps uniform temp 170 degrees Celsius, adds polyethylene wax, obtain easy emulsification modification low grade pitch, keep this material substantially at 170 DEG C, with for subsequent use under stirring.
The water taken is heated to 55 DEG C, then the EM44 taken is dissolved in this water of 60 DEG C, add ortho-phosphoric acid afterwards, notice that the pH value detecting the aqueous solution reaches, should be 2.0 ~ 2.5, thus form soap lye.
Then be the speed lapping to prepared intermediate materials, be 9000 revs/min of colloidal mills by rotating speed by described easy emulsification modification low grade pitch and soap lye simultaneously, form steady type emulsified bitumen.
Finally constant temperature stirring is carried out to not steady type emulsified bitumen, the not steady type emulsified bitumen obtained by speed lapping is placed in agitator, this not steady type emulsified bitumen temperature is at first higher, temperature be down to be 60 DEG C substantially time, carry out constant temperature and stir 16 hours, finally obtain the petroleum pitch emulsion that solid content is 60%.
Rubber-based emulsion adopts butadiene latex, solid content is 50%, be that 6:4 takes above-mentioned two kinds of emulsions respectively by the mass ratio of petroleum pitch emulsion and butadiene latex, the emulsified bitumen taken and butadiene latex are heated to 55 DEG C respectively, then petroleum pitch emulsion is stirred, butadiene latex is added under emulsified bitumen whipped state, adding of butadiene latex all measured to add lentamente in 50 minutes, can obtain the water-proof binding layer material of the present embodiment after carrying out the stirring of 1.5 hours at a constant temperature.
embodiment 4
the homemade a kind of hard emulsified bitumen of asphaltic base emulsion in the present embodiment is made, and this emulsified bitumen is obtained by following step.
First be the preparation of intermediate materials, choose: No. 20 petroleum pitch are as low grade pitch, and penetration degree is 20dmm, and softening temperature is 87 DEG C; H
3pO
4content is that the polyphosphoric acid of 110% is as short emulsifying additive; Fusing point is that the polyethylene wax of 105 DEG C is as properties-correcting agent; Asphalt emulsifier is selected and is split soon soon coagulate type, and the present embodiment selects the anionic asphalt emulsion GTA-A02 of Taihang chemical industry limited liability company of Fengqiu; Acid-base modifier selects sodium hydroxide.Above-mentioned each material and water take by following weight:
No. 30 petroleum pitch 50kg
H
3pO
4content is the polyphosphoric acid 0.5kg of 110%
Fusing point is the polyethylene wax 0kg of 105 DEG C
GTA-A02 2.0kg
Sodium hydroxide 0.5kg
Water 47kg
Take No. 20 petroleum pitch are placed in agitator, and 170 DEG C are heated to it, start to stir, add the H taken simultaneously
3pO
4content is the polyphosphoric acid of 110%, continuously stirring 2h, and polyphosphoric acid and pitch are fully reacted, and keeps uniform temp 170 DEG C, adds polyethylene wax, obtain easy emulsification modification low grade pitch, keep this material substantially at 170 DEG C, with for subsequent use under stirring.
The water taken is heated to 55 DEG C, then the GTA-A02 taken is dissolved in this water of 60 DEG C, add sodium hydroxide afterwards, notice that the pH value detecting the aqueous solution reaches, should be 10.5 ~ 11, thus form soap lye.
Then be the speed lapping to prepared intermediate materials, be 9000 revs/min of colloidal mills by rotating speed by described easy emulsification modification low grade pitch and soap lye simultaneously, form steady type emulsified bitumen.
Finally constant temperature stirring is carried out to not steady type emulsified bitumen, the not steady type emulsified bitumen obtained by speed lapping is placed in agitator, this not steady type emulsified bitumen temperature is at first higher, temperature be down to be 60 DEG C substantially time, carry out constant temperature and stir 16 hours, finally obtain the petroleum pitch emulsion that solid content is 50%.
Rubber-based emulsion adopts nature rubber latex, solid content is 50%, be that 7:3 takes above-mentioned two kinds of emulsions respectively by the mass ratio of petroleum pitch emulsion and nature rubber latex, the emulsified bitumen taken and nature rubber latex are heated to 50 DEG C respectively, then petroleum pitch emulsion is stirred, nature rubber latex is added under emulsified bitumen whipped state, adding of nature rubber latex all measured to add lentamente in 1 hour, can obtain the water-proof binding layer material of the present embodiment after carrying out the stirring of 1.2 hours at a constant temperature.
Embodiment 5
The homemade a kind of hard emulsified bitumen of asphaltic base emulsion in the present embodiment is made, and this emulsified bitumen is obtained by following step.
First be the preparation of intermediate materials, choose: No. 10 petroleum pitch are as low grade pitch, and its penetration degree is 10dmm, and softening temperature is 101 DEG C; Fusing point is that the polyethylene wax of 90 DEG C is as properties-correcting agent; Asphalt emulsifier is selected and is split soon soon coagulate type, and the present embodiment selects the cation asphalt emulgent E4819 of Akzo Nobel company; Acid-base modifier selects concentration to be 30% concentrated hydrochloric acid.Above-mentioned each material and water take by following weight:
No. 10 petroleum pitch 40kg
Short emulsifying additive 0kg
Fusing point is the polyethylene wax 2kg of 90 DEG C
E4819 1.0kg
Concentrated hydrochloric acid 1.0kg
Water 56.0kg
Take No. 10 petroleum pitch are placed in agitator, and 175 DEG C are heated to it, start to stir, add the polyethylene wax taken, continuously stirring 3h simultaneously, polyethylene wax and pitch are fully dissolved, obtain easy emulsification modification low grade pitch, keep this material substantially at 175 DEG C, with for subsequent use.
The water taken is heated to 55 DEG C, then the E4819 taken is dissolved in this water of 60 DEG C, add concentrated hydrochloric acid afterwards, notice that the pH value detecting the aqueous solution reaches, should be 2.0 ~ 2.5, thus form soap lye.
Then be the speed lapping to prepared intermediate materials, be 9000 revs/min of colloidal mills by rotating speed by described easy emulsification modification low grade pitch and soap lye simultaneously, form steady type emulsified bitumen.
Finally constant temperature stirring is carried out to not steady type emulsified bitumen, the not steady type emulsified bitumen obtained by speed lapping is placed in agitator, this not steady type emulsified bitumen temperature is at first higher, temperature be down to be 60 DEG C substantially time, carry out constant temperature and stir 16 hours, finally obtain the petroleum pitch emulsion that solid content is 40%.
Rubber-based emulsion adopts polychloroprene latex, solid content is 70%, be that 8:2 takes above-mentioned two kinds of emulsions respectively by the mass ratio of petroleum pitch emulsion and polychloroprene latex, the emulsified bitumen taken and polychloroprene latex are heated to 50 DEG C respectively, then petroleum pitch emulsion is stirred, under emulsified bitumen whipped state, add polychloroprene latex, adding of polychloroprene latex all measured to add lentamente in 1 hour, can obtain the water-proof binding layer material of the present embodiment after carrying out the stirring of 2 hours at a constant temperature.
The invention is not restricted to the embodiments described, and replacement same type of material being carried out to equivalence can form new embodiment.Such as rubber-based emulsion also can adopt styrene-butadiene latex, nitrile rubber, isobutylene-isoprene latex, ethylene propylene rubber latex and acrylic latex, or the synthetic rubber latex carrying out compound by two or more in these latex and formed, or with the synthetic rubber latex that these latex and nature rubber latex carry out compound and formed.If carry out compound respectively with petroleum pitch emulsion of the present invention by these rubber latexs can form some new embodiments, and these all belong to scope.
two, performance test
Respectively by the water-proof binding layer material that embodiment 1, embodiment 2, embodiment 3, embodiment 4 prepare, carry out performance test comparison with aqueous epoxy resins bituminous material.Wherein, snappiness, thermal test carry out according to JC/T 408-2005, watertightness is carried out according to GB/T 16777-2008, other tests are then carried out according to DB32/T 2285-2012 " cement concrete bridge deck water-base epoxy asphalt waterproofing tack coat construction technique normalizing ", and its test result sees the following form.
The related performance indicators of bonding layer material of the present invention is suitable with water-base epoxy pitch as can be seen from the above table, but manufacture craft is simple, makes it be manufactured on cost more much lower than water-base epoxy pitch, and sprays easily, and shaping strength is fast.Therefore be a kind of material with application prospect.
Claims (12)
1. a Cement Concrete bridge deck water-proof tack coat material, is characterized in that: be made up of asphaltic base emulsion and rubber-based emulsion, and wherein shared by asphaltic base emulsion, the per-cent of total described quality is 60% ~ 90%, and remainder is rubber-based emulsion.
2. Cement Concrete bridge deck water-proof tack coat material according to claim 1, is characterized in that: described asphaltic base emulsion to be solid content be 40% ~ 60% low grade petroleum pitch emulsion, 25 DEG C of Saybolt viscosities are 40s ~ 100s.
3. Cement Concrete bridge deck water-proof tack coat material according to claim 2, is characterized in that: the penetration degree of the evaporation residue of described asphaltic base emulsion is 5dmm ~ 20dmm, and softening temperature is for being greater than 65 DEG C.
4. Cement Concrete bridge deck water-proof tack coat material according to claim 2, it is characterized in that: described asphaltic base emulsion comprises the following ingredients accounting for described asphaltic base emulsion total mass per-cent: 40% ~ 60% low grade pitch, 0 ~ 3% short emulsifying additive, 0 ~ 3% properties-correcting agent, 0.2% ~ 2% asphalt emulsifier, 0.2 ~ 2% acid-base modifier, Yu Weishui.
5. Cement Concrete bridge deck water-proof tack coat material according to claim 4, is characterized in that: described short emulsifying additive is polyphosphoric acid and H in polyphosphoric acid
3pO
4content is 105 ~ 115%.
6. Cement Concrete bridge deck water-proof tack coat material according to claim 4, it is characterized in that: described properties-correcting agent is methylene radical polymkeric substance, and its fusing point is 90 ~ 140 DEG C.
7. Cement Concrete bridge deck water-proof tack coat material according to claim 4, is characterized in that: described asphalt emulsifier is, cation asphalt emulgent or anionic asphalt emulsion one wherein.
8. Cement Concrete bridge deck water-proof tack coat material according to claim 4, is characterized in that: described acid-base modifier is the one in hydrochloric acid, phosphoric acid, sulfuric acid, sodium hydroxide.
9. Cement Concrete bridge deck water-proof tack coat material according to claim 1, is characterized in that: the rubber content of described rubber-based emulsion is 40% ~ 70%.
10. Cement Concrete bridge deck water-proof tack coat material according to claim 9, it is characterized in that: described rubber-based emulsion is the one in nature rubber latex or synthetic rubber latex, or is mixed to form with any ratio by nature rubber latex and synthetic rubber latex.
11. Cement Concrete bridge deck water-proof tack coat materials according to claim 5, it is characterized in that: described synthetic rubber latex is the one in isoprene rubber latex, styrene-butadiene latex, nitrile rubber, butadiene latex, isobutylene-isoprene latex, polychloroprene latex, ethylene propylene rubber latex, acrylate glue Ruzhong, or by above-mentioned each latex two kinds or two kinds be mixed to form with any ratio.
The preparation method of 12. Cement Concrete bridge deck water-proof tack coat materials as claimed in claim 1, comprises the steps:
(1) asphaltic base emulsion and rubber-based emulsion are heated to 50 DEG C ~ 55 DEG C simultaneously, the temperature that both maintenances are identical;
(2) in 1 hour, slow for rubber-based emulsion equivalent is at the uniform velocity added to asphaltic base emulsion, then keeps stirring 1-2 hour, obtain described Cement Concrete bridge deck water-proof tack coat material.
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| CN107189464A (en) * | 2017-07-05 | 2017-09-22 | 河南省高远公路养护技术有限公司 | It is a kind of for emulsified bitumen modifying agent of road in alpine region engineering and its preparation method and application |
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| CN108659788A (en) * | 2018-05-07 | 2018-10-16 | 重庆科顺化工新材料有限公司 | A kind of high water pressure resistant node waterproof sealing compound and preparation method thereof |
| CN109880383A (en) * | 2019-01-21 | 2019-06-14 | 重庆工商职业学院 | A kind of micro-surface area modified hard emulsified asphalt and preparation method thereof |
| CN110003850A (en) * | 2019-02-27 | 2019-07-12 | 湖北国创高新材料股份有限公司 | A kind of Composite Emulsified Asphalt water-proof binding layer material and preparation method thereof |
| CN110041827A (en) * | 2019-05-07 | 2019-07-23 | 内蒙古煤矿设计研究院有限责任公司 | A kind of water proof anti-corrosive paint that can be used for coal transporting trestle leakage and repair |
| CN111995952A (en) * | 2020-06-30 | 2020-11-27 | 沈阳国建精材科技发展有限公司 | Water-based damping adhesive |
| CN114479490A (en) * | 2021-11-29 | 2022-05-13 | 江西省高速公路物资有限公司 | Modified emulsified asphalt and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107189464A (en) * | 2017-07-05 | 2017-09-22 | 河南省高远公路养护技术有限公司 | It is a kind of for emulsified bitumen modifying agent of road in alpine region engineering and its preparation method and application |
| CN107216664A (en) * | 2017-07-05 | 2017-09-29 | 河南省高远公路养护技术有限公司 | A kind of emulsified bitumen modifying agent, preparation method and its application in modified emulsifying asphalt is prepared |
| CN108659788A (en) * | 2018-05-07 | 2018-10-16 | 重庆科顺化工新材料有限公司 | A kind of high water pressure resistant node waterproof sealing compound and preparation method thereof |
| CN109880383A (en) * | 2019-01-21 | 2019-06-14 | 重庆工商职业学院 | A kind of micro-surface area modified hard emulsified asphalt and preparation method thereof |
| CN110003850A (en) * | 2019-02-27 | 2019-07-12 | 湖北国创高新材料股份有限公司 | A kind of Composite Emulsified Asphalt water-proof binding layer material and preparation method thereof |
| CN110003850B (en) * | 2019-02-27 | 2020-12-22 | 湖北国创高新材料股份有限公司 | Composite emulsified asphalt waterproof bonding layer material and preparation method thereof |
| CN110041827A (en) * | 2019-05-07 | 2019-07-23 | 内蒙古煤矿设计研究院有限责任公司 | A kind of water proof anti-corrosive paint that can be used for coal transporting trestle leakage and repair |
| CN111995952A (en) * | 2020-06-30 | 2020-11-27 | 沈阳国建精材科技发展有限公司 | Water-based damping adhesive |
| CN114479490A (en) * | 2021-11-29 | 2022-05-13 | 江西省高速公路物资有限公司 | Modified emulsified asphalt and preparation method and application thereof |
| CN114479490B (en) * | 2021-11-29 | 2023-05-16 | 江西省高速公路物资有限公司 | Modified emulsified asphalt and preparation method and application thereof |
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| CN104371579B (en) | 2016-08-24 |
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