CN102173658A - Cement concrete pavement curing agent and preparation method thereof - Google Patents
Cement concrete pavement curing agent and preparation method thereof Download PDFInfo
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- CN102173658A CN102173658A CN 201110066452 CN201110066452A CN102173658A CN 102173658 A CN102173658 A CN 102173658A CN 201110066452 CN201110066452 CN 201110066452 CN 201110066452 A CN201110066452 A CN 201110066452A CN 102173658 A CN102173658 A CN 102173658A
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Abstract
The invention discloses a cement concrete pavement curing agent and a preparation method thereof and belongs to the related field of asphalt road maintenance and repairing. The curing agent comprises the following components in percentage by weight: 15 to 40 of refined asphalt, 10 to 30 percent of coal asphalt, 10 to 20 of epoxy resin, 20 to 40 percent of modifier, 3 to 15 percent of diluent, 0.5 to 3 percent of aids, 3 to 10 percent of curing agent, and 10 to 30 percent of aggregate. The preparation method comprises the following steps of: shearing the refined asphalt, the coal asphalt, the epoxy resin, the modifier, the diluent, and the aids at the high speed at the temperature of between 100 and 120 DEG C for 60 to 90 minutes to form base stock A; and adding a curing agent (B) and aggregate (C) into the stock A, and uniformly stirring at normal temperature to obtain the curing agent. The curing agent has a simple preparation process, low equipment requirements, low using cost, and strong cement concrete seepage force, can be integrated with a pavement, and has the advantages of improving road appearance, sealing a road surface, prolonging the service life of a road and the like.
Description
Technical field
The present invention relates to a kind of cement concrete pavement top layer performance of improving, the road anti-slide performance is improved on the sealing road surface, beautifies the cement concrete pavement curing agent and the preparation method on road surface, belongs to bituminous pavement maintenance and repair association area.
Background technology
Advantages such as cement concrete pavement has that supporting capacity is big, good stability, long service life, routine servicing expense are few now are widely used in road surface and Irish bridge in airport runways, motorway, arterial highway, urban road, factories and mines road and field, stop, the tunnel.Its servicing time is long then, cost is high, road-ability is poor, noise is big and shortcoming such as easy airborne dust, more and more can not be adapted to modern road development need.Particularly after bridge floor, tunnel road surface at motorway were passing through for many years, diseases such as disconnected plate, faulting of slab ends and seam destruction can be decayed or occur to pavement friction to the past few years cement pavement, and security, the smoothness of road are brought very big influence by frequent application.
Road is attractive in appearance in order to increase, road-ability and be convenient to maintenance management, occurs technologies such as " changing black in vain ", little table place in recent years, and these technologies all are to overlay one deck asphalt concrete pavement on white pavement.In actual use, because former road surface self-defect and overlay technology is immature, effect is still undesirable.Development along with the cement pavement maintenance technology, super little table place technology has also appearred recently, it is at cement pavement shop cover one deck epoxy carborundum or one deck flame-retardant pitch, carrying out antiskid handles, improve a kind of technology of the attachment coefficient on road surface effectively, yet this technology still is in the exploration, fails to apply.
On China's express highway pavement, urban road surfaces, white pavement still accounts for larger proportion, particularly steel bridge face, tunnel road surface etc.According to the cycle of Road construction, these road surfaces are being faced with maintains.For example, in the tunnel on the road surface, cement concrete pavement is after operation after a while, the non-skid property on road surface can decay gradually, this brings very big hidden danger to traffic safety, adopt traditional processing modes such as overlaying heated bitumen, little table place, cover can increase the road surface, dwindle the clear height in tunnel, and then influence the current of oversize vehicle.Under the restriction of clear height and load-bearing two big factors, on bridge floor, tunnel road surface, overlay conventional process modes such as heated bitumen, little table place, cover and obviously can not adapt to the requirement of road own.So, select novel material, novel process that former cement pavement is handled, do not raise the road surface in the hope of reaching both to play, can improve the cling property on road surface again, the purpose of improving Pavement Performance and beautifying the road surface seems particularly important.
Summary of the invention
The present invention is according to the maintenance needs of cement pavement, and purpose is to provide a kind of cement concrete pavement curing agent and preparation method.After this curing agent is applied to cement pavement, can infiltrate inside, road top layer, become one, form the thick super thin layer of 1 ~ 3mm with road, not only reach the purpose that " changing black in vain " beautifies the road surface, and effectively improve the anti-slide performance of road and seal road surface minimizing damage by water bad.
Purpose of the present invention is achieved through the following technical solutions:
A kind of cement concrete pavement curing agent divides by weight percentage, and it comprises following component: refined asphaltic bitumen 15 ~ 40%, coal-tar pitch 10 ~ 30%, Resins, epoxy 10 ~ 20%, properties-correcting agent 20 ~ 40%, thinner 3 ~ 15%, auxiliary agent 0.5 ~ 3%, solidifying agent 3 ~ 10%, aggregate 10 ~ 30%.
Described refined asphaltic bitumen is AH-70 petroleum pitch, AH-90 petroleum pitch, SBS modifying asphalt, SBR modifying asphalt, CR modifying asphalt, PE modifying asphalt or PP modifying asphalt.
Described coal-tar pitch is through high temperature refining more than 800 ℃, and proportion is between 1.22～1.25, and water content is zero coal-tar pitch.
Described Resins, epoxy is any one or more the mixture in the bisphenol A type epoxy resin of the trades mark such as E-31, E-35, E-42, E-44, E-51, E-55.
Described properties-correcting agent is any one or more the mixture in Gum Rosin, C 5 petroleum resin, C 9 petroleum resin, terpine resin, talcum powder, calcined kaolin, the light calcium carbonate.
Described thinner is any one or more the mixture in toluene, acetone, ethyl acetate, the turps.
Described auxiliary agent is any one or more the mixture in aerosil, butanols, organo-siloxane class tensio-active agent, the antistripping agent.
Described solidifying agent is that proportioning is the acetone of 1 ︰ 1 and the mixed solution of quadrol.
Described aggregate is any one or more the mixture in 40 to 200 purpose silicon carbide, quartz sand, crystalline aluminum oxide, mica, mica shape ferric oxide, particulate polyvinyl chloride, rubber powder, polyamide particles, the polyimide particle.
The preparation method of cement concrete pavement curing agent of the present invention may further comprise the steps:
(1) refined asphaltic bitumen, coal-tar pitch are hot melt to 100 ~ 120 ℃, constant temperature 30 minutes;
(2) with 10 ~ 30w% coal-tar pitch, 10 ~ 20w% Resins, epoxy, 20 ~ 40w% properties-correcting agent, 3 ~ 15w% thinner, 0.5 ~ 3w% auxiliary agent adds in 15 ~ 40w% refined asphaltic bitumen, and at 100 ~ 120 ℃, high speed shear 60 ~ 90 minutes makes the A base-material;
(3) treat A base-material cooling that step (2) makes after, add 3 ~ 10w% solidifying agent (B), 10 ~ 30w% aggregate (C) stirs at normal temperatures, the even thickness liquid form mixt that obtains is cement concrete pavement curing agent of the present invention.
The present invention is a main raw material(s) with coal-tar pitch, Resins, epoxy, refined asphaltic bitumen, and coal-tar pitch wherein contains more active group, can improve the consistency of Resins, epoxy and refined asphaltic bitumen.Simultaneously, the active group in the coal-tar pitch can be participated in the chemical addition reaction of epoxy group(ing) in the Resins, epoxy directly, and coal-tar pitch becomes the endurable active toughener that solidifies back Resins, epoxy, makes Resins, epoxy and coal-tar pitch, refined asphaltic bitumen form uniform mixture.Under the acting in conjunction of coal-tar pitch, Resins, epoxy, solidifying agent, can strengthen thermotolerance, cohesive force, tensile strength and the ultimate compression strength of bituminous material, and accelerate the material drying.
With respect to prior art, the advantage of present technique invention:
(1) cement concrete pavement curing agent of the present invention can be constructed by normal temperature, ambient cure, and both convenient construction was low for equipment requirements again, easy to utilize.
(2) cement concrete pavement curing agent of the present invention has extremely strong penetrating power to cement concrete pavement, constructing behind the road surface can rapid permeability cement concrete top layer, and the effect back forms the spatial network interpenetrating structure with it, reaches the effect on sealing, firm road top layer.
(3) cement concrete pavement curing agent of the present invention has stronger adhesive property to cement concrete pavement, can form the thin layer of 1 ~ 3mm at road surface, reach the effect of " changing black in vain ", solved and on the rigid surface, overlayed the problem of one deck flexible pavement in conjunction with difficulty.
(4) cement concrete pavement curing agent of the present invention can improve the anti-slide performance of cement concrete pavement by the aggregate of selecting suitable grating for use, improves the road traffic safety performance.
(5) cement concrete pavement curing agent preparation technology of the present invention is simple, and equipment requirements is low, and use cost is low, and working procedure is simple, and resource environment protection, result of use are obvious.
Embodiment
For a better understanding of the present invention, the preparation method below by the cement concrete pavement curing agent of 1-3 pairs of inventions of embodiment is elaborated.The starting material that use among the embodiment 1-3 are technical grade.
Embodiment 1:
Get AH-70 petroleum pitch (Korea S SK70# petroleum pitch) 150g, coal-tar pitch is (through high temperature degumming more than 800 ℃, proportion is between 1.22～1.25, water content is zero coal-tar pitch) 100g, E-44 Resins, epoxy 200g, Gum Rosin 70g, 250 order talcum powder 200g, toluene 10g, acetone 26g, KH-550 silane coupling agent 5g, aerosil 5g, the anti-stripping of pitch agent (the anti-stripping of ATL-01 pitch agent, Luohe City sky dragon chemical industry company limited produces) 7g, solidifying agent (proportioning is the acetone of 1 ︰ 1 and the mixed solution of quadrol) 27g, 60 order silicon carbide 200g are prepared as follows the cement concrete pavement curing agent:
(1) Korea S SK-70 pitch, coal-tar pitch are hot melt to 100 ~ 120 ℃, constant temperature 30 minutes;
(2) with the 100g coal-tar pitch, 200g E-44 Resins, epoxy, 70g Gum Rosin, 200g 250 order talcum powder, 10g toluene, 26g acetone, 5g KH-550 silane coupling agent, the 5g aerosil, the 7g slaked lime adds in the 150g heated bitumen, at 100 ~ 120 ℃, high speed shear 60 ~ 90 minutes makes the A base-material;
(3) treat A base-material cooling that step (2) makes after, add 27g solidifying agent (B), 200g silicon carbide stirs at normal temperatures, the even thickness liquid form mixt that obtains is cement concrete pavement curing agent of the present invention.
Test-results verifies that this curing agent is normal temperature solidified, tensile strength 1 ~ 8Mpa, and ultimate compression strength 1 ~ 40MPa, its Heat stability is good, chemical resistance is good, ability 10%H
2SO
4, 10%HCl, 10%NaOH, 10%NaCl aqueous corrosion.
Embodiment 2:
Get SBS modifying asphalt (model PG76-22, U.S. Shell Co. Ltd produces) 150g, coal-tar pitch is (through high temperature degumming more than 800 ℃, proportion is between 1.22～1.25, water content is zero coal-tar pitch) 300g, E-35 Resins, epoxy 50g, E-51 Resins, epoxy 50g, 250 order light calcium carbonate 200g, toluene 30g, acetone 20g, KH-560 silane coupling agent 5g, asphalt anti-stripping agent (slaked lime) 15g, solidifying agent (proportioning is the acetone of 1 ︰ 1 and the mixed solution of quadrol) 20g, 70 order quartz sand 120g, 120 order rubber powder 35g are prepared as follows the cement concrete pavement curing agent:
(1) SBS modifying asphalt, coal-tar pitch are hot melt to 100 ~ 120 ℃, constant temperature 30 minutes;
(2) with the 300g coal-tar pitch, 50g E-35 Resins, epoxy, 50g E-51 Resins, epoxy, 200g 250 order lime carbonate, 30g toluene, 20g acetone, 5g KH-560 silane coupling agent, 15g slaked lime, add in the 200g heated bitumen, at 100 ~ 120 ℃, high speed shear 60 ~ 90 minutes makes the A base-material;
(3) treat A base-material cooling that step (2) makes after, add 20g solidifying agent (B), 120g quartz sand and 35g rubber powder stir at normal temperatures, the even thickness liquid form mixt that obtains is cement concrete pavement curing agent of the present invention.
Test-results verifies that this curing agent is normal temperature solidified, tensile strength 1 ~ 8Mpa, and ultimate compression strength 1 ~ 40MPa, its Heat stability is good, chemical resistance is good, ability 10%H
2SO
4, 10%HCl, 10%NaOH, 10%NaCl aqueous corrosion.
Embodiment 3:
Get common homemade SBR modifying asphalt 300g, coal-tar pitch is (through high temperature degumming more than 800 ℃, proportion is between 1.22～1.25, water content is zero coal-tar pitch) 100g, E-31 Resins, epoxy 50g, E-55 Resins, epoxy 50g, 250 order calcined kaolin 200g, ethyl acetate 65g, acetone 50g, KH-570 silane coupling agent 5g, asphalt anti-stripping agent (AD-here 6525, refined beautiful production of the U.S.) 20g, solidifying agent (proportioning is the acetone of 1 ︰ 1 and the mixed solution of quadrol) 10g, mica 100g, polyamide particles 50g is prepared as follows the cement concrete pavement curing agent:
(1) common homemade SBR modifying asphalt, coal-tar pitch are hot melt to 100 ~ 120 ℃, constant temperature 30 minutes;
(2) with the 100g coal-tar pitch, 50g E-31 Resins, epoxy, 50g E-55 Resins, epoxy, 200g 250 order calcined kaolins, the 65g ethyl acetate, 50g acetone, 5g KH-550 silane coupling agent, 20g slaked lime, add in the 300g heated bitumen, at 100 ~ 120 ℃, high speed shear 60 ~ 90 minutes makes the A base-material;
(3) treat A base-material cooling that step (2) makes after, add 10g solidifying agent (B), 100g mica and 50g polyamide particles stir at normal temperatures, the even thickness liquid form mixt that obtains is cement concrete pavement curing agent of the present invention.
Test-results verifies that this curing agent is normal temperature solidified, tensile strength 1 ~ 8Mpa, and ultimate compression strength 1 ~ 40MPa, its Heat stability is good, chemical resistance is good, ability 10%H
2SO
4, 10%HCl, 10%NaOH, 10%NaCl aqueous corrosion.
Claims (10)
1. a cement concrete pavement curing agent is characterized in that by weight percentage, and it is made up of following component: refined asphaltic bitumen 15 ~ 40%, coal-tar pitch 10 ~ 30%, Resins, epoxy 10 ~ 20%, properties-correcting agent 20 ~ 40%, thinner 3 ~ 15%, auxiliary agent 0.5 ~ 3%, solidifying agent 3 ~ 10%, aggregate 10 ~ 30%.
2. cement concrete pavement curing agent according to claim 1 is characterized in that: described refined asphaltic bitumen is AH-70 petroleum pitch, AH-90 petroleum pitch, SBS modifying asphalt, SBR modifying asphalt, CR modifying asphalt, PE modifying asphalt or PP modifying asphalt.
3. cement concrete pavement curing agent according to claim 1 is characterized in that: described coal-tar pitch is through high temperature refining more than 800 ℃, and proportion is between 1.22～1.25, and water content is zero coal-tar pitch.
4. cement concrete pavement curing agent according to claim 1 is characterized in that: described Resins, epoxy is any one or more the mixture in the bisphenol A type epoxy resin of the trades mark such as E-31, E-35, E-42, E-44, E-51, E-55.
5. cement concrete pavement curing agent according to claim 1 is characterized in that: described properties-correcting agent is any one or more the mixture in Gum Rosin, C 5 petroleum resin, C 9 petroleum resin, terpine resin, talcum powder, calcined kaolin, the light calcium carbonate.
6. cement concrete pavement curing agent according to claim 1 is characterized in that: described thinner is any one or more the mixture in toluene, acetone, ethyl acetate, the turps.
7. cement concrete pavement curing agent according to claim 1 is characterized in that: described auxiliary agent is any one or more the mixture in aerosil, butanols, organo-siloxane class tensio-active agent, the antistripping agent.
8. cement concrete pavement curing agent according to claim 1 is characterized in that: described solidifying agent is that proportioning is the acetone of 1 ︰ 1 and the mixed solution of quadrol.
9. cement concrete pavement curing agent according to claim 1 is characterized in that: described aggregate is any one or more the mixture in 40 to 200 purpose silicon carbide, quartz sand, crystalline aluminum oxide, mica, mica shape ferric oxide, particulate polyvinyl chloride, rubber powder, polyamide particles, the polyimide particle.
10. prepare the method for the described cement concrete pavement curing agent of claim 1, may further comprise the steps:
(1) refined asphaltic bitumen, coal-tar pitch are hot melt to 100 ~ 120 ℃, constant temperature 30 minutes;
(2) with 10 ~ 30w% coal-tar pitch, 10 ~ 20w% Resins, epoxy, 20 ~ 40w% properties-correcting agent, 3 ~ 15w% thinner, 0.5 ~ 3w% auxiliary agent adds in 15 ~ 40w% refined asphaltic bitumen, and at 100 ~ 120 ℃, high speed shear 60 ~ 90 minutes makes the A base-material;
(3) treat A base-material cooling that step (2) makes after, add 3 ~ 10w% solidifying agent (B), 10 ~ 30w% aggregate (C) stirs at normal temperatures, the even thickness liquid form mixt that obtains is cement concrete pavement curing agent of the present invention.
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| CN112408860A (en) * | 2020-11-04 | 2021-02-26 | 广东中和正通工程技术有限公司 | Asphalt concrete and application thereof |
| CN112778907A (en) * | 2020-12-30 | 2021-05-11 | 河南省公路工程试验检测中心有限公司 | Asphalt pavement regeneration preventive maintenance material and preparation method and application thereof |
| CN115160816A (en) * | 2022-07-26 | 2022-10-11 | 上海浦东建设股份有限公司 | Composite asphalt modifier and preparation method, use method and application thereof |
| CN115160816B (en) * | 2022-07-26 | 2023-11-21 | 上海浦东建设股份有限公司 | Composite asphalt modifier and preparation method, using method and application thereof |
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