CN102190897A - Water-based road asphalt rehabilitating agent and preparation method thereof - Google Patents
Water-based road asphalt rehabilitating agent and preparation method thereof Download PDFInfo
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- CN102190897A CN102190897A CN 201110066450 CN201110066450A CN102190897A CN 102190897 A CN102190897 A CN 102190897A CN 201110066450 CN201110066450 CN 201110066450 CN 201110066450 A CN201110066450 A CN 201110066450A CN 102190897 A CN102190897 A CN 102190897A
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Abstract
The invention discloses a water-based road asphalt rehabilitating agent and a preparation method thereof. The formula of the water-based road asphalt rehabilitating agent comprises the following components in percentage by weight: 20 to 30 percent of asphalt, 10 to 20 percent of water, 5 to 10 percent of solvent, 10 to 20 percent of modifier, 0.5 to 2 percent of emulsifier, 0.5 to 1 percent of adhesion promoter, 0.5 to 2 percent of antisettling agent and 25 to 40 percent of filler. The preparation method comprises the following steps of: mixing the water and the emulsifier at the temperature of between 55 and 60 DEG C uniformly; adding the asphalt and the modifier which are diluted by the solvent sequentially; emulsifying the materials in asphalt emulsifying equipment; adding the adhesion promoter, the antisettling agent and the filler sequentially; and continuously stirring for 15 to 30 minutes under the conditions of normal temperature, normal pressure and high speed to obtain the finished product. The water-based road asphalt rehabilitating agent has high permeability, cohesive property and durability, is used for beautifying road surface and repairing early diseases such as ageing of the asphalt road surface, pitting surface, water seepage and the like, prolongs the service life of the road by 2 to 3 years, and has remarkable economic and social benefits.
Description
Technical field
The present invention relates to a kind ofly beautify and repair early diseases such as bituminous pavement is aging, pitted skin, minute crack, infiltration, energy rapid permeability bituminous pavement top layer, airtight road surface, administer pitted skin, hold loose, make minute crack up, reach water shutoff, road bitumen analeptic of road improvement anti-slide performance and graceful road surface outward appearance and preparation method thereof belongs to bituminous pavement maintenance and repair association area.
Background technology
Along with bituminous pavement more and more widely is applied in motorway and the urban road construction, the common diseases of bituminous pavement such as the road surface is aging, crack, pitted skin, loose, sandization, damage by water are bad are influence normal use of road and the maximum killer of reduction of service life, carry out the comprehensive regulation as untimely, can quicken road damages, strengthen the road maintenance cost, influence road and normally run, cause heavy economic losses.This moment, the road surface did not structurally have big damage, and is little to the influence of driving.Generally in this case, the road surface composite quality index is more than very reaching very, and pavement condition index PCI is between 80～95.Be the best moment that road pavement is carried out preventive maintenance at this moment.
Characteristics such as preventive maintenance has that easy construction, construction time are short, social benefit and economic benefit are good.The preventive maintenance method is a lot, as mist seal, little table place, slurry seal and thin overlay etc.This a series of technology has obtained using widely in the U.S., Canada and some European countries, and has obtained tremendous economic and social benefit.External experience shows, road is taked planned maintenance measure, improves pavement durability, can effectively prolong highway work-ing life, improves the economical, societal benefits of road efficiency of operation and performance road itself.To road early investment 1 yuan, can save the input of later stage 6-10 unit.Yet in the applying at home, technology such as little table place, slurry seal and thin overlay are relatively stricter to equipment, construction technology, technician's quality.Simultaneously, after adopting these technical finesses, also can bring environmental protection, waste disposal, energy dissipation, heavily spread a series of problems such as traffic road surface white line, traffic that the road closure overlong time causes and socioeconomic loss.Both at home and abroad environmental protection, high performance preventive maintenance material are begun one's study at present and use.The Pavement Dressing Conditioner of U.S.'s development (is called for short PDC, U.S. Patent number 5,580,603) be a kind of preventative asphalt pavement regeneration agent, yet this material not too obvious to the effect of diseases such as handling crack, the ageing of asphalt occurred 3～5mm and come off, serious loose.Domestic development and the application that has also begun such material, but do not see application report.
In recent years, along with the appearance of national relevant policies, traffic departments at different levels very pay attention to the preventive maintenance of road, and road preventive maintenance market enlarges gradually.Domestic nearly 20% bituminous pavement is in the precuring stage.It is predicted, about 30,000 tons/year in nearest 1～2 year market to the demand of such conserving material, the Market Growth phase in 3～5 years, market can reach 5～100,000 tons/year to the demand of such material.Expectation is about 10 years, and the market requirement total amount of this project will be about 300,000 tons/year, and market capitalisation reaches 12,000,000,000 yuan.
Along with domestic environmental protection heats up gradually, and society and the masses are more and more higher to the demand of highway communication, high-grade highway and urban road preventive maintenance market to adhesion property, the endurance quality of preventive maintenance material, beautify function such as redeck and proposed requirements at the higher level.Yet be that the low-grade bituminous pavement preventive maintenance material of representative still accounts for larger proportion with emulsified bitumen, modified emulsifying asphalt on the domestic market, and high-performance, environmentally-friendly asphalt analeptic material are in blank.
Summary of the invention
The present invention is according to asphalt roads maintenance existing deficiency of pre existing conserving material on the trend of environmentally friendly development and the market, purpose is to provide a kind of water-based road bitumen analeptic and preparation method thereof, be used to beautify the road surface outward appearance, improve road anti-slide performance and water resistance, solve bituminous pavement early diseases such as ageing of asphalt, loose, pitted skin, fine cracks, infiltration, and prevention or check disease development and spread, thereby prolong road life.
Purpose of the present invention is achieved through the following technical solutions:
A kind of water-based road bitumen analeptic is characterized in that by weight percentage it is made up of following component: pitch 20 ~ 30%, water 10 ~ 20%, solvent 5 ~ 10%, properties-correcting agent 10 ~ 20%, emulsifying agent 0.5 ~ 2%, adhesion promoter 0.5 ~ 1%, anti-settling agent 0.5 ~ 2% and filler 25 ~ 40%.
Described pitch is any in AH-70 petroleum pitch, the SBS modifying asphalt.
Described water is no ion distilled water.
Described solvent is any one or more the mixture in ethyl acetate, butylacetate, acetone, ethanol, the butanols.
Described properties-correcting agent is any one or more the mixture in SBR latex, SBS latex, EBS latex, polychloroprene latex, EVA emulsion, pure-acrylic emulsion, the organosilicon crylic acid latex.
Described emulsifying agent is a cation asphalt emulgent.
Described adhesion promoter is any one or more the mixture among silane coupling agent DN-630, silane coupling A-1100, silane coupling A-171, the silane coupling agent KH560.
Described anti-settling agent is any one or more the mixture in aerosil, organobentonite, the polynite.
Described filler is any one or more the mixture in calcined kaolin, clay, talcum powder and the lime carbonate.
The preparation method of described water-based road bitumen analeptic may further comprise the steps:
(1) water and emulsifying agent are mixed at 55 ~ 60 ℃;
(2) with the pitch solvent cut;
(3) liquid that step (2) is made and properties-correcting agent add in the mixture of step (1) successively;
(4) with the mixture emulsification in bitumen emulsifying plant in the step (3);
(5) in the emulsion that step (4) makes, add adhesion promoter, anti-settling agent successively, filler, in the high-speed stirring still, continuous high speed stirred 15 ~ 30 minutes under the normal temperature and pressure, was finished product.
The present invention is by significantly improving asphalt emulsification efficient and effect with solvent cut pitch reemulsification earlier, introduce stability in storage, adhesive property, perviousness and weather resistance that material that properties-correcting agent, adhesion promoter etc. have special construction can significantly strengthen product simultaneously, greatly improved value-added content of product.
With respect to prior art, the advantage of present technique invention:
(1) but water-based road bitumen analeptic of the present invention is a kind of black strong solution of water-soluble normal temperature construction, can be sprayed on the road surface by craft or machinery in the non-rainy day, can beautify and repair motorway or town road bituminous pavement.
(2) material of the present invention is applied to bituminous pavement after, it can be adsorbed in road table, and infiltrates the bituminous pavement top layer rapidly, road improvement surface structure (friction pendulum value, construction depth) and raising road surface waterproof performance.
(3) material of the present invention has excellent permeation performance and adhesion property, has solved the difficult problem of emulsified bitumen perviousness, poor adhesive force.After bituminous pavement was used, material can reach 3 ~ 10mm to the depth of penetration on top layer.
(4) water-based road bitumen analeptic preparation technology of the present invention is simple, equipment requirements is low, use cost is low, construction technology is simple, resource environment protection, be widely used in beautifying city, high-grade highway bituminous pavement outward appearance and improve pavement quality, prolong 2 ~ 3 years work-ing life of road, have considerable economic and social benefit.
Embodiment
For a better understanding of the present invention, below by embodiment 1-4 the water-based road bitumen analeptic and preparation method thereof of invention is elaborated.The starting material that use among the embodiment 1-4 are technical grade.
Embodiment 1
Get AH-70 petroleum pitch (model is SK70#) 300g, water 150g, ethyl acetate 30g, ethanol 20g, SBR latex 40g, EVA emulsion 150g, French sieve ground inferior asphalt emulsifier DVAP BIT AM-90(split the fast quaternary ammonium salt cationic asphalt emulsifier that coagulates type slowly) 20g, DN-630 silane coupling agent 5g, aerosil 10g and calcined kaolin (250 order) 275g.
Its preparation method is: 150g water and 20g DVAP BIT AM-90 are mixed at 55 ~ 60 ℃; Use the 30g ethyl acetate, 20g ethanol dilutes 300gSK70# petroleum pitch; 350g bituminous solution, 40g SBR latex that dilution is good, 150g EVA emulsion adds in the 170g emulsifier aqueous solution that has prepared successively, emulsification in bitumen emulsifying plant, add 5g DN-630 silane coupling agent then successively, 10g aerosil and 275g calcined kaolin, in the high-speed stirring still, continuous high speed stirred 15 ~ 30 minutes under the normal temperature and pressure, was finished product.
With this finished product according to 0.3kg/m
2Amount be painted on the bituminous pavement, at 25 ℃, surface drying is 1 hour under relative humidity 60% condition, does solid work 4 hours, wet film is a bright black, dry film is mute light black.With Guizhou Province, Chongqing, Chongqing is at a high speed that entity project is tested, and follows the tracks of the detection data and sees Table 1.
Guizhou Province, Chongqing, table 1 Chongqing is constructed preceding at a high speed and the construction back was detected the data tracking table in 1,3,6 months
According to the engineering effect, this product can road improvement anti-slide performance, airtight road surface, and the road surface outward appearance effectively improved, and is applicable to the preventive maintenance of urban road, high-grade highway bituminous pavement.
Embodiment 2
SBR latex among the embodiment 1 is replaced with SBS latex, and all the other are constant, and effect is similar to embodiment 1.
Embodiment 3
SBR latex among the embodiment 1 is replaced with EBS latex, and all the other are constant, and effect is similar to embodiment 1.
Embodiment 4
SBR latex among the embodiment 1 is replaced with polychloroprene latex, and all the other are constant, and effect is similar to embodiment 1.
Embodiment 5
Get SBS modifying asphalt (model PG76-22, U.S. Shell Co. Ltd produces) 200g, water 120g, butylacetate 50g, acetone 20g, organosilicon crylic acid latex 175g coagulates asphalt emulsifier during French sieve ground inferior asphalt emulsifier DVAP BIT AM-92(positively charged ion splits slowly) 10g, A-1100 silane coupling agent 10g, polynite 15g and talcum powder (250 order) 400g.
Its preparation method is: 120g water and 10g DVAP BIT AM-90 are mixed at 55 ~ 60 ℃; Use the 50g butylacetate, 20g acetone dilutes the 200gPG76-22SBS modifying asphalt; 270g bituminous solution, 175g organosilicon crylic acid latex that dilution is good add in the 130g emulsifier aqueous solution that has prepared successively, emulsification in bitumen emulsifying plant, add 10g A-1100 silane coupling agent then successively, 15g polynite and 400g talcum powder, in the high-speed stirring still, continuous high speed stirred 15 ~ 30 minutes under the normal temperature and pressure, was finished product.
With this finished product according to 0.3kg/m
2Amount be painted on the bituminous pavement, at 25 ℃, surface drying is 1 hour under relative humidity 60% condition, does solid work 4 hours, wet film is a bright black, dry film is mute light black.With the Jingzhu express way Guang-Zhu section is that entity project is tested, and follows the tracks of the detection data and sees Table 2.
Before the construction of table 2 Jingzhu express way and construction back was detected the data tracking table in 1,3,6 months
According to the engineering effect, this product can road improvement anti-slide performance, and airtight road surface, and the road surface outward appearance effectively improved is applicable to that the preventive maintenance of high-grade highway bituminous pavement and bridge deck water-proof handle.
Embodiment 6
Organosilicon crylic acid latex among the embodiment 5 is replaced with pure-acrylic emulsion, and talcum powder replaces with clay, and all the other are constant, and effect is similar to embodiment 5.
Embodiment 7
Get SBS modifying asphalt (model PG76-22, U.S. Shell Co. Ltd produces) 250g, water 150g, butylacetate 50g, butanols 50g, EVA emulsion 100g, French sieve ground inferior asphalt emulsifier DVAP BIT AM-99(positively charged ion splits slow hardening type asphalt emulsifier slowly) 5g, A-171 silane coupling agent 5g, polynite 20g and lime carbonate (250 order) 370g.
Its preparation method is: 150g water and 5g DVAP BIT AM-92 are mixed at 55 ~ 60 ℃, regulate pH value to 2 ~ 3; Use the 50g butylacetate, the 50g butanols dilutes the 250gPG76-22SBS modifying asphalt; 350g bituminous solution, 100g EVA emulsion that dilution is good add in the 155g emulsifier aqueous solution that has prepared successively, emulsification in bitumen emulsifying plant, add 5g A-171 silane coupling agent then successively, 20g polynite and 370g lime carbonate (250 order), in the high-speed stirring still, continuous high speed stirred 15 ~ 30 minutes under the normal temperature and pressure, was finished product.
With this finished product according to 0.3kg/m
2Amount be painted on the bituminous pavement, at 25 ℃, surface drying is 1 hour under relative humidity 60% condition, does solid work 4 hours, wet film is a bright black, dry film is mute light black.Is that entity project is tested with Chongqing through opening the main road, follows the tracks of the detection data and sees Table 3.
Table 3 Chongqing is 1,3,6 months detection data tracking tables before opening the main road construction and after the construction
According to the engineering effect, this product can road improvement anti-slide performance, airtight road surface, and the road surface outward appearance effectively improved, and is applicable to the preventive maintenance of urban road and high-grade highway bituminous pavement.
Embodiment 8
Polynite among the embodiment 7 is replaced with organobentonite, and the A-171 silane coupling agent replaces with the KH560 silane coupling agent, and all the other are constant, and effect is similar to embodiment 7.
Claims (10)
1. a water-based road bitumen analeptic is characterized in that by weight percentage it is made up of following component: pitch 20 ~ 30%, water 10 ~ 20%, solvent 5 ~ 10%, properties-correcting agent 10 ~ 20%, emulsifying agent 0.5 ~ 2%, adhesion promoter 0.5 ~ 1%, anti-settling agent 0.5 ~ 2% and filler 25 ~ 40%.
2. water-based road bitumen analeptic according to claim 1 is characterized in that: described pitch is any in AH-70 petroleum pitch, the SBS modifying asphalt.
3. water-based road bitumen analeptic according to claim 1, it is characterized in that: described water is no ion distilled water.
4. water-based road bitumen analeptic according to claim 1 is characterized in that: described solvent is any one or more the mixture in ethyl acetate, butylacetate, acetone, ethanol, the butanols.
5. water-based road bitumen analeptic according to claim 1 is characterized in that: described properties-correcting agent is any one or more the mixture in SBR latex, SBS latex, EBS latex, polychloroprene latex, EVA emulsion, pure-acrylic emulsion, the organosilicon crylic acid latex.
6. water-based road bitumen analeptic according to claim 1 is characterized in that: described emulsifying agent is a cation asphalt emulgent.
7. water-based road bitumen analeptic according to claim 1 is characterized in that: described adhesion promoter is any one or more the mixture among silane coupling agent DN-630, silane coupling A-1100, silane coupling A-171, the silane coupling agent KH560.
8. water-based road bitumen analeptic according to claim 1 is characterized in that: described anti-settling agent is any one or more the mixture in aerosil, organobentonite, the polynite.
9. water-based road bitumen analeptic according to claim 1 is characterized in that: described filler is any one or more the mixture in calcined kaolin, clay, talcum powder and the lime carbonate.
10. prepare the preparation method of each described water-based road bitumen analeptic of claim 1-9, may further comprise the steps:
(1) water and emulsifying agent are mixed at 55 ~ 60 ℃;
(2) with the pitch solvent cut;
(3) liquid that step (2) is made and properties-correcting agent add in the mixture of step (1) successively;
(4) with the mixture emulsification in bitumen emulsifying plant in the step (3);
(5) add adhesion promoter, anti-settling agent, filler successively in the emulsion that step (4) makes, in the high-speed stirring still, continuous high speed stirred 15 ~ 30 minutes under the normal temperature and pressure, was finished product.
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| CN102492136A (en) * | 2011-12-05 | 2012-06-13 | 天津康泽威科技有限公司 | Method for preparing serialized slow-crack quick-setting type cation asphalt emulsifier |
| CN102559135A (en) * | 2012-02-09 | 2012-07-11 | 深圳市卓宝科技股份有限公司 | Asphalt self-adhesive and high-polymer self-adhesion rubber waterproof coiled material prepared from asphalt self-adhesive |
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| CN111019366A (en) * | 2019-12-02 | 2020-04-17 | 长安大学 | High-performance SBS modified emulsified asphalt, SBS latex and preparation method |
| CN114149746A (en) * | 2021-11-08 | 2022-03-08 | 中冶武汉冶金建筑研究院有限公司 | High-performance emulsified asphalt waterproof coating and preparation method thereof |
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