CN107236458A - Pitch restorative for asphalt pavement conserving and preparation method thereof and application method - Google Patents
Pitch restorative for asphalt pavement conserving and preparation method thereof and application method Download PDFInfo
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- CN107236458A CN107236458A CN201710613881.8A CN201710613881A CN107236458A CN 107236458 A CN107236458 A CN 107236458A CN 201710613881 A CN201710613881 A CN 201710613881A CN 107236458 A CN107236458 A CN 107236458A
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- pitch
- restorative
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- asphalt
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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Road Paving Structures (AREA)
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Abstract
It is a kind of for pitch restorative of asphalt pavement conserving and preparation method thereof and application method, this is used for the pitch restorative of asphalt pavement conserving, is made up of R section bars material and Type B material the present invention relates to Asphalt Pavement Maintenance Technology field.Pitch restorative of the present invention for asphalt pavement conserving integrates preferable aged asphalt restorability, adhesive property, abrasion resistance, permeance property, when it is repaired to aged asphalt road surface, aged asphalt road surface can be activated, aged asphalt is set to recover its original performance, so as to effectively delay the weak speed of Pavement Performance, extend the service life of bituminous paving；And the low cost of the pitch restorative of the present invention for asphalt pavement conserving, makes the pitch restorative of the present invention for asphalt pavement conserving have the economic benefit and social benefit of highly significant.
Description
Technical field
The present invention relates to Asphalt Pavement Maintenance Technology field, be a kind of pitch restorative for asphalt pavement conserving and its
Preparation method and application method.
Background technology
Bituminous paving is generally used for the surface layer of surfacing, and it is directly influenceed by Vehicle Load and atmospheric factor.
The special geogen in Xinjiang, requires higher, the spring melts season to the temperature stability of pitch, ice and snow on road surfaces melts round the clock,
The destruction of the cyclic process road pavement of frost is also more serious.With the growth of service life, by above-mentioned environmental factor, load factor
Influence, the breakoff phenomenon of early stage, such as crack occurs in asphalt surface course（Check crack, block split）, these phenomenons major part reason be by
Caused in the aging of pitch.After ageing of asphalt, the composition in pitch changes, the adhesion reduction of pitch and mineral aggregate,
In the presence of sunlight, rain, snow-broth, high/low temperature, aging can further occur for pitch, and destruction will sustainable development, Xinjiang weather spy
The ultraviolet irradiation of point extreme arid torrid climate is strong, and in the presence of traffic load, asphalt surface course aging speed is fast.
At present, the maintenance to the disease such as aging road surface has following methods：
1. during using the method for traditional curing to disease treatment of road surfaces, labor intensity is big, it is necessary to which disease road surface, Ran Houchong are fallen in milling
New making bituminous concrete, economic input is big, and maintenance cost is 60 yuan/square metre, using this maintenance method, is not only maintained into
This is big, and curing time is long, can not be open to traffic for a long time.
When recovering product, road surface hardening agent to aged asphalt maintenance of surface using asphalt performances such as pitch reducing agents, construction
When, it is necessary to heat, and part asphalt performance recovers to contain harmful composition in product, during heating construction, You Haicheng
Divide and be detrimental to health, environment is polluted.Certainly, also there is using effect preferably and the asphalt performance of environmental protection recover product,
Such as imported product U.S. Parker is gloomy, Israel TL2000 bituminous paving hardening agents, but its cost is higher, and cost reaches 30
Member/square metre or so.
The content of the invention
The invention provides a kind of for pitch restorative of asphalt pavement conserving and preparation method thereof and application method, gram
The deficiency of above-mentioned prior art is taken, it is big in the presence of maintenance labor intensity that it can effectively solve existing aging diseases maintenance of surface method
With maintenance cost it is high the problem of.
One of technical scheme is realized by following measures：A kind of pitch for asphalt pavement conserving
Restorative, is made up of R section bars material and Type B material, and the mass percent of Type B material is 60% to 80%, and surplus is R section bar material；Type B
The raw materials by weight portion meter of material is made up of 35 parts to 45 parts of 55 parts to 65 parts of heavy petroleum asphalt, 2 parts to 3 parts of emulsifying agent and water；R
The raw materials by weight portion meter of section bar material is by 20 parts to 30 parts of aromatic solvent oil, 1 part to 2 parts of plasticizer, 25 parts of natural rubber breast
Constituted to 35 parts, 20 parts to 30 parts of polychloroprene latex, 15 parts to 25 parts of light diesel fuel.
Here is the further optimization and/or improvements to one of foregoing invention technical scheme：
The above-mentioned pitch restorative for asphalt pavement conserving, is obtained as follows：By the desired amount of R section bars material and Type B material
The pitch restorative for asphalt pavement conserving is obtained after material is well mixed.
Mentioned emulsifier split in being type emulsifying agent, it is slow split fast solidifying type emulsifying agent, split one kind in slow hardening type emulsifying agent soon or
Two kinds of mixtures；Or/and, plasticizer is dioctyl phthalate, diisooctyl phthalate, dioctyl adipate, phosphorus
One or more of sour front three phenyl ester and octyl ester of epoxy fatty acid.
Above-mentioned Type B material is obtained as follows：The first step, 140 DEG C to 160 are heated to by the desired amount of heavy petroleum asphalt
℃；Second step, the desired amount of emulsifying agent is added to after being stirred in the water that temperature is 55 DEG C to 65 DEG C and obtains emulsifier solution, weight
The mass ratio of oil asphalt and water is 55 to 65:35 to 45 to 45；3rd step, 140 DEG C to 160 DEG C of the heavy oil that the first step is obtained
Pitch mixes with the emulsifier solution that second step is obtained and Type B material is obtained after emulsification treatment.
In above-mentioned second step, mixing time is 30 minutes to 60 minutes；Or/and, in the 3rd step, carried out using emulsifying device
Emulsification treatment.
Above-mentioned R section bars material is obtained as follows：Under normal temperature, by the desired amount of aromatic solvent oil, natural rubber breast, neoprene
R section bar material are obtained after latex, light diesel fuel, plasticizer are well mixed.
Above-mentioned incorporation time is 30 minutes to 60 minutes.
What the two of technical scheme were realized by following measures：Being used for described in a kind of one of technical scheme drips
The preparation method of the pitch restorative of blue or green maintenance of surface, is carried out as follows：The desired amount of R section bars material and Type B material are mixed
The pitch restorative for asphalt pavement conserving is obtained after closing uniformly.
Here is two further optimization and/or improvements to foregoing invention technical scheme：
Mentioned emulsifier splits type emulsifying agent, slow split and coagulates type emulsifying agent soon, splits one or both of slow hardening type emulsifying agent soon in being
Mixture；Or/and, plasticizer is dioctyl phthalate, diisooctyl phthalate, dioctyl adipate, tricresyl phosphate
One or more of toluene ester and octyl ester of epoxy fatty acid.
Above-mentioned Type B material is obtained as follows：The first step, 140 DEG C to 160 are heated to by the desired amount of heavy petroleum asphalt
℃；Second step, the desired amount of emulsifying agent is added to after being stirred in the water that temperature is 55 DEG C to 65 DEG C and obtains emulsifier solution, weight
The mass ratio of oil asphalt and water is 55 to 65:35 to 45 to 45；3rd step, 140 DEG C to 160 DEG C of the heavy oil that the first step is obtained
Pitch mixes with the emulsifier solution that second step is obtained and Type B material is obtained after emulsification treatment.
In above-mentioned second step, mixing time is 30 minutes to 60 minutes；Or/and, in the 3rd step, carried out using emulsifying device
Emulsification treatment.
Above-mentioned R section bars material is obtained as follows：Under normal temperature, by the desired amount of aromatic solvent oil, natural rubber breast, neoprene
R section bar material are obtained after latex, light diesel fuel, plasticizer are well mixed.
Above-mentioned incorporation time is 30 minutes to 60 minutes.
What the three of technical scheme were realized by following measures：A kind of pitch for asphalt pavement conserving is extensive
The application method of multiple agent, is carried out as follows：Disease road surface is cleaned, by the pitch restorative sprinkling for asphalt pavement conserving
On disease road surface after the cleaning, every square metre spray 0.5 kilogram to 1.0 kilograms, it is sprayed after, conserve it is 2 hours to 4 small
When.
Here is three further optimization and/or improvements to foregoing invention technical scheme：
The sprinkling of the above-mentioned pitch restorative for asphalt pavement conserving is constructed by the way of synchronous chip sealer sprinkling,
During being sprayed using synchronous chip sealer, spread to sprinkling on the disease road surface after the pitch restorative of asphalt pavement conserving
Cloth particle diameter is 3mm to 5mm rubble；Or/and, temperature during construction is more than 15 DEG C；Or/and, it is sprayed after, in 8 hours
Without rainfall；Or/and, before the disease road surface of pitch restorative sprinkling after the cleaning for asphalt pavement conserving, by disease
Water and soil on road surface are removed；Or/and, when the fracture width on disease road surface is more than 0.5 centimetre, first crack is pasted and stitched
Afterwards, then the sprinkling of the pitch restorative for asphalt pavement conserving is carried out；Or/and, first will hole when having pit on disease road surface
After groove closure, then carry out the sprinkling of the pitch restorative for asphalt pavement conserving.
The preferable aged asphalt restorability of pitch restorative collection, bonding of the present invention for asphalt pavement conserving
, it is to aged asphalt road surface for performance, abrasion resistance, permeance property（Disease road surface）When being repaired, it can activate
Aged asphalt road surface, makes aged asphalt recover its original performance, so that effectively delay the weak speed of Pavement Performance, extension drip
The service life on blue or green road surface；And the low cost of the pitch restorative of the present invention for asphalt pavement conserving, sends out this
The bright described pitch restorative for asphalt pavement conserving has the economic benefit and social benefit of highly significant.In addition, this
The described pitch restorative for asphalt pavement conserving of invention can construct without heating, reduce the energy consumed by heating
Source, harmless, environmentally safe, speed of application is fast, and labor intensity is low.
Embodiment
The present invention is not limited by following embodiments, can technique according to the invention scheme and actual conditions it is specific to determine
Embodiment.Various chemical reagent and chemical article are previously mentioned in the present invention unless otherwise specified, is public in the prior art
Know public chemical reagent and chemical article；Percentage in the present invention is as being mass percent without specified otherwise；This hair
It is the aqueous solution that solvent is water, for example, hydrochloric acid solution is aqueous hydrochloric acid solution if the solution in bright is without specified otherwise；This
Normal temperature, room temperature in invention refer generally to 15 DEG C to 25 DEG C of temperature, are commonly defined as 25 DEG C.
With reference to embodiment, the invention will be further described：
Embodiment 1：This is used for the pitch restorative of asphalt pavement conserving, is made up of R section bars material and Type B material, the matter of Type B material
It is 60% to 80% to measure percentage, and surplus is R section bar material；The raw materials by weight portion meter of Type B material is by 55 parts to 65 of heavy petroleum asphalt
Part, 35 parts to 45 parts compositions of 2 parts to 3 parts of emulsifying agent and water；The raw materials by weight portion meter of R section bar material is oily 20 parts by aromatic solvent
To 30 parts, 1 part to 2 parts of plasticizer, natural rubber breast 25 parts to 35 parts, 20 parts to 30 parts of polychloroprene latex, 15 parts to 25 of light diesel fuel
Part composition.
When being repaired using the pitch restorative described in the present embodiment to disease road surface, its cost is 20 yuan/square metre,
Cost is far below recovers product using the asphalt performance of traditional maintenance process and import, thus, has saved aged asphalt disease
The maintenance cost on road surface.During using pitch restorative described in the present embodiment, the pitch restorative described in the present embodiment is sprayed
On disease road surface, then after the maintenance of 2 hours to 4 hours, you can be open to traffic, relative to traditional curing method, this is used
Pitch restorative described in embodiment can reduce labor intensity and shorten curing time, disease road is normally open to traffic as early as possible.
The pitch restorative for asphalt pavement conserving described in the present embodiment has infiltration and attachment function, when by this reality
The pitch restorative for applying example is sprayed on aged asphalt road surface, to aged asphalt road surface（Disease road surface）When being repaired, this reality
2cm to 4cm can be permeated downwards by applying the pitch restorative of example, activated road surface aged asphalt, aged asphalt is recovered its original property
Energy.Pitch restorative described in the present embodiment can effectively delay the weak of Pavement Performance when bituminous paving is applied
Speed, extends the service life of bituminous paving（After pitch restorative using the present invention, aged asphalt pavement life is set to extend 3
Year was to 5 years）, economic benefit and social benefit with highly significant.
The pitch restorative for asphalt pavement conserving described in the present embodiment is used to handle the agings such as pitted skin, net crack disease
Evil bituminous paving.
Embodiment 2：This is used for the pitch restorative of asphalt pavement conserving, is made up of R section bars material and Type B material, Type B material
Mass percent be 60% or 80%, surplus be R section bar material；The raw materials by weight portion meter of Type B material is by 55 parts of heavy petroleum asphalt
Or 65 parts, 35 parts or 45 parts compositions of 2 parts or 3 parts of emulsifying agent and water；The raw materials by weight portion meter of R section bar material is by aromatic solvent oil
20 parts or 30 parts, 1 part or 2 parts of plasticizer, natural rubber breast 25 parts or 35 parts, 20 parts or 30 parts of polychloroprene latex, 15 parts of light diesel fuel
Or 25 parts of compositions.
Embodiment 3：As the optimization of above-described embodiment, emulsifying agent splits type emulsifying agent, slow splits solidifying type emulsifying agent, fast soon in being
Split one or both of slow hardening type emulsifying agent mixture；Or/and, plasticizer is dioctyl phthalate, phthalic acid
One or more of di-isooctyl, dioctyl adipate, tricresyl phosphate and octyl ester of epoxy fatty acid.
In to split type emulsifying agent can be that KZW-802 types emulsifying agent, the slow solidifying type emulsifying agent soon that splits can be KZW-801U types breast
Agent, to split slow hardening type emulsifying agent soon can be KZW-802K-1 type emulsifying agents.
Embodiment 4：As the optimization of above-described embodiment, Type B material is obtained as follows：The first step, will be the desired amount of
Heavy petroleum asphalt is heated to 140 DEG C to 160 DEG C；Second step, the water that temperature is 55 DEG C to 65 DEG C is added to by the desired amount of emulsifying agent
Obtain emulsifier solution after middle stirring, the mass ratio of heavy petroleum asphalt and water is 55 to 65:35 to 45 to 45；3rd step, by first
140 DEG C to 160 DEG C obtained of heavy petroleum asphalt is walked to mix and obtain after emulsification treatment with the emulsifier solution that second step is obtained
To Type B material.
Embodiment 5：As the optimization of above-described embodiment, in second step, mixing time is 30 minutes to 60 minutes；Or/and,
In 3rd step, emulsification treatment is carried out using emulsifying device.
Embodiment 6：As the optimization of above-described embodiment, R section bar material are obtained as follows：, will be the desired amount of under normal temperature
R section bar material are obtained after aromatic solvent oil, natural rubber breast, polychloroprene latex, light diesel fuel, plasticizer are well mixed.
Embodiment 7：As the optimization of above-described embodiment, incorporation time is 30 minutes to 60 minutes.
Embodiment 8：The pitch restorative for asphalt pavement conserving described in above-described embodiment is obtained as follows：Will
The pitch restorative for asphalt pavement conserving is obtained after the desired amount of R section bars material and Type B material are well mixed, Type B material
Mass percent is 60% to 80%, and surplus is R section bar material.
Embodiment 9：The pitch restorative for asphalt pavement conserving described in above-described embodiment is obtained as follows：Will
The pitch restorative for asphalt pavement conserving is obtained after the desired amount of R section bars material and Type B material are well mixed, Type B material
Mass ratio with R section bar material is 2:1.
Embodiment 10：The pitch restorative for asphalt pavement conserving described in above-described embodiment is obtained as follows：
The desired amount of R section bars material and Type B material are obtained into the pitch restorative for asphalt pavement conserving, Type B material after well mixed
Be 3 with the mass ratios of R section bar material:1.
Embodiment 11：The pitch restorative for asphalt pavement conserving described in above-described embodiment is obtained as follows：
The desired amount of R section bars material and Type B material are obtained into the pitch restorative for asphalt pavement conserving, Type B material after well mixed
Be 4 with the mass ratios of R section bar material:1.
Embodiment 12：For the application method of the pitch restorative of asphalt pavement conserving, carry out as follows：Cleaning disease
Evil road surface, by the disease road surface of pitch restorative sprinkling after the cleaning for asphalt pavement conserving, every square metre of sprinkling 0.5
Kilogram to 1.0 kilograms, it is sprayed after, conserve 2 hours to 4 hours.
By the maintenance of 2 hours to 4 hours, the pitch restorative of the present invention is fully oozed down, activate road surface aged asphalt,
It is set to recover its original performance.
The pitch restorative for asphalt pavement conserving described in the embodiment of the present invention（Pitch restorative of the present invention）It is one
Cold mixing pitch restorative is planted, cold can be constructed, can be constructed without heating, the energy consumed by heating be reduced, to human body
Harmless, environmentally safe, technique is simple, and speed of application is fast, and labor intensity is low.Bituminous paving, bridge floor to aging ooze
Thoroughly and cohesive, the disease such as aging, loose, microcrack for bituminous paving has relatively good repairing effect.
The cost of the pitch restorative for asphalt pavement conserving of the above embodiment of the present invention is used for 20 yuan/square
Rice, can investment reduction compared to traditional curing method is used.
Embodiment 13：As the optimization of above-described embodiment 12, the sprinkling for the pitch restorative of asphalt pavement conserving is adopted
The mode sprayed with synchronous chip sealer is constructed, and during using synchronous chip sealer sprinkling, is used for asphalt road to sprinkling
The rubble that particle diameter is 3mm to 5mm is dispensed on disease road surface after the pitch restorative of face maintenance；Or/and, temperature during construction exists
More than 15 DEG C；Or/and, it is sprayed after, without rainfall in 8 hours；Or/and, by the pitch restorative for asphalt pavement conserving
Before the disease road surface of sprinkling after the cleaning, the water on disease road surface and soil are removed；Or/and, when splitting on disease road surface
When slit width degree is more than 0.5 centimetre, after first crack patch is stitched, then the sprinkling of the pitch restorative for asphalt pavement conserving is carried out；
Or/and, when having pit on disease road surface, after first pit is blocked, then carry out the pitch restorative for asphalt pavement conserving
Sprinkling.
Rubble can be using rubbles such as basalt.
The pitch restorative for asphalt pavement conserving described in the above embodiment of the present invention 1, embodiment 8 to 11 is carried out
Performance test, abrasion resistance experiment, permeance property experiment are damaged in the experiment of aged asphalt performance recovery, water resistant, and determine above-mentioned reality
Apply the surface friction coefficient and infiltration coefficient of the pitch restorative for asphalt pavement conserving described in example.
First, aged asphalt performance recovery is tested
1. by way of the road surface that road is A grades of 90# pitch makings, and weathered there is early disease（Crack）Road surface press T0701-
2011 asphalt sampling methods, take drilling, cut or dig this layer of compound, and depth is 2cm to 4cm, by T0726-
2011（Abson method）The A level 90# pitches after aging are reclaimed from asphalt.
Indexs measure is carried out to former road surface aged asphalt, detection needle penetration, softening point, ductility, testing result are shown in Table 1.
In same section, the pitch restorative for asphalt pavement conserving described in embodiment 1, embodiment 8 to 11 is used
Afterwards, equally take drilling, cut or dig this layer of compound, depth be 2cm to 4cm, reclaim pitch, detection Asphalt Penetration,
Softening point, ductility, are calculated using right after the pitch restorative for asphalt pavement conserving described in embodiment 1, embodiment 8 to 11
The raising ratio of aged asphalt, raising ratio=（Use the drip of the desired value after the pitch restorative of embodiment-use embodiment
Desired value before blue or green restorative）/ using the desired value * 100% before the pitch restorative of embodiment, raising ratio is shown in Table 1；
4. control is used as using emulsified asphalt, modified emulsifying asphalt, bitumen regenerant respectively（Emulsified asphalt, modified emulsifying asphalt, drip
Blue or green regenerative agent belongs to similar bituminous paving with pitch restorative of the present invention and repairs product）, in same section, test is used
Needle penetration, softening point, ductility after emulsified asphalt, modified emulsifying asphalt, bitumen regenerant, are calculated using emulsified asphalt, modification
To the raising ratio of aged asphalt after emulsified asphalt, bitumen regenerant, raising ratio=（Use the desired value after reference examples-use
Desired value before reference examples）/ using the desired value * 100% before reference examples, raising ratio is shown in Table 1.
It can be seen from Table 1 that, the improvement result of needle penetration and ductility, pitch restorative ＞ bitumen regenerant ＞ modified milks
Change pitch ＞ emulsified asphalts, show, the Asphalt Penetration of pitch restorative of the invention increases the most obvious, of the invention pitch
Restorative substantially improves the needle penetration of aged asphalt, has softened pitch, has recovered lightweight oil content in pitch.Therefore, it is comprehensive
Comparative analysis is closed, pitch restorative of the invention has preferable aged asphalt recovery effects.Illustrate of the present invention be used for
The pitch restorative of asphalt pavement conserving can activate road surface aged asphalt, aged asphalt is recovered its original performance.
2nd, water resistant damages performance test
Peeled off because conserving material is generally used for road surfaces asphaltaggregate than more serious section, therefore, these materials must be with
Road surfaces, which gather materials, good adhesiveness, to reduce the Moisture Damage on road surface.Therefore, conserving material is mainly examined by adhesiveness test
Measure and monitor the growth of standing timber material and the adhesiveness gathered materials.Experiment uses basalt building stones using water-boiling method experiment, building stones.To the above embodiment of the present invention
Described pitch restorative carries out this experiment, meanwhile, using common emulsified asphalt, modified emulsifying asphalt, bitumen regenerant as right
According to and carry out this experiment, result of the test is shown in Table 2.
Result of the test in table 2 shows, pitch restorative of the invention and the adhesiveness gathered materials are most strong, surface of aggregate pitch
Peel off minimum, with preferable anti-water damage property, common emulsified asphalt anti-water damage effect is worst.Illustrate of the present invention
Pitch restorative for asphalt pavement conserving has preferable attachment function, is bonded with aged asphalt, so that with preferable
Anti-water damage effect.
3rd, abrasion resistance is tested
The anti-wear performance of conserving material directly determines its service life.Therefore, it is extensive to the pitch described in the above embodiment of the present invention
The anti-wear performance of multiple agent is tested, meanwhile, using emulsified asphalt, modified emulsifying asphalt, bitumen regenerant as reference examples.
Experiment uses Wet track abrasion test, and test specimen drying is cool to room temperature, brushes 0.5 kg/m2Sample, in 60 DEG C of baking ovens
Middle to dry 16h respectively, the cool 1d that puts weighs weight m to room temperature1；Wet wheel abrasion are carried out again, are dried and cool are weighed weight m to room temperature2, it is right
Than abrasion loss amount.Result of the test is shown in Table 3.
The test result analysis in table 3, the abrasion loss amount of blank test specimen is maximum, smears after conserving material, quality
Loss is reduced, and shows that conserving material can improve the attrition resistance energy on road surface.Comparing result shows between each conserving material, commonly
The anti-wear performance of emulsified asphalt is worst, and the anti-wear performance of the pitch restorative of modified emulsifying asphalt and the present invention is all relatively preferable.
Illustrate that the pitch restorative of the present invention for asphalt pavement conserving has preferable abrasion resistance.
4th, permeance property is tested
Choose the road surface of one section of A grades of 90# pitch making, conserving material（The pitch restorative of the above embodiment of the present invention）It is sprayed at
Can bituminous paving, permeate, and be directly connected to the recovery situation of aged asphalt performance, and the material for penetrating into bitumen layer can not only be extensive
The pavement performance of multiple aged asphalt, moreover it is possible to form one layer of effective asphalt membrane, plays a part of sealing crack or hole, extends road
Road service life.Meanwhile, using emulsified asphalt, modified emulsifying asphalt, bitumen regenerant is reference examples and does permeability test.
In same stretch brushing conserving material respectively, after 2 hours, core boring sampling 2cm to 4cm compounds is reclaimed after pitch,
Its needle penetration, ductility and softening point are determined, 4 are the results are shown in Table.
By table 4, brush the present invention and be put into the test specimen after pitch restorative, reclaim pitch three norms（Needle penetration,
Ductility, softening point）Preferably, the test specimen after the performance of former 90# pitches, brushing bitumen regenerant is substantially returned to, recovery is also functioned to
Effect, but be not it is obvious that emulsified asphalt and modified emulsifying asphalt do not play recovery effects, therefore, emulsified asphalt and modification
Emulsified asphalt does not permeate, and pitch restorative penetration depth of the invention is deeper than bitumen regenerant penetration depth, illustrates this hair
The osmotic effect of bright pitch restorative is preferable.
Illustrate that the pitch restorative of the present invention for asphalt pavement conserving has more preferable permeance property, so as to
It is enough preferably to be bonded with aged asphalt, make the depth of the original performance of aged asphalt road surface recovery deeper.
5th, surface friction coefficient
Same position respectively surveys at 5 points before and after the pitch restorative of aged asphalt pavement usage the above embodiment of the present invention, using pendulum
Formula frictionmeter determines surface friction coefficient, the results are shown in Table 5.
Pass through table 5, after being completed using the pitch restorative spraying application described in the above embodiment of the present invention, road surface
Coefficient of friction there is different degrees of lifting, reliable guarantee can be provided for traffic safety.Spray after half a year, road surface is rubbed
Wipe coefficient to decrease compared with half a year, this shows that part sprayed coating is worn and torn by traffic load.
Illustrate to use the pitch restorative of the present invention for asphalt pavement conserving, it is possible to increase aged asphalt road surface
Coefficient of friction.
6th, infiltration coefficient
Have crannied aged asphalt road surface, the detection sprinkling present invention using the pitch restorative sprinkling of the above embodiment of the present invention
Water percolating capacity before and after the pitch restorative sprinkling of above-described embodiment, respectively surveys at 5 points in testing location, as a result sees 6.
Pass through table 6, after being completed using the pitch restorative spraying described in the above embodiment of the present invention, pavement crack
Infiltration coefficient occur in that reduction even impermeable phenomenon, this shows the pitch restorative pair described in the above embodiment of the present invention
Pavement crack has certain plugging action.
Illustrate that using the pitch restorative of the present invention for asphalt pavement conserving infiltration probability can be reduced, use
Bituminous paving formation sealant after the pitch restorative of the above embodiment of the present invention, resists the external force such as water, oil and corrodes.
Infiltration and attachment function, are sprayed on aged asphalt road surface when by the pitch restorative of the present embodiment, and aging is dripped
Blue or green road surface（Disease road surface）When being repaired, the pitch restorative of the present embodiment can permeate 2cm to 4cm downwards, activate road surface
Aged asphalt, makes aged asphalt recover its original performance.Pitch restorative described in the present embodiment is applied in bituminous paving
When, it can effectively delay the weak speed of Pavement Performance, extend the service life of bituminous paving,
In summary, the pitch restorative collection preferable aged asphalt of the present invention for asphalt pavement conserving is restorative
, it is to aged asphalt road surface for energy, adhesive property, abrasion resistance, permeance property（Disease road surface）When being repaired, energy
Enough activation aged asphalt road surface, makes aged asphalt recover its original performance, so that effectively delay the weak speed of Pavement Performance,
Extend the service life of bituminous paving；And the low cost of the pitch restorative of the present invention for asphalt pavement conserving,
Make the pitch restorative of the present invention for asphalt pavement conserving that there is the economic benefit and social benefit of highly significant.Separately
Outside, the pitch restorative of the present invention for asphalt pavement conserving can construct without heating, reduce and disappear because of heating
The energy of consumption, harmless, environmentally safe, speed of application is fast, and labor intensity is low.
Above technical characteristic constitutes embodiments of the invention, and it has stronger adaptability and implementation result, can basis
The non-essential technical characteristic of increase and decrease is actually needed, to meet the demand of different situations.
Claims (10)
1. a kind of pitch restorative for asphalt pavement conserving, it is characterised in that be made up of R section bars material and Type B material, Type B material
The mass percent of material is 60% to 80%, and surplus is R section bar material；The raw materials by weight portion meter of Type B material is by heavy petroleum asphalt 55
Part to 35 parts to 45 parts of 65 parts, 2 parts to 3 parts of emulsifying agent and water is constituted；The raw materials by weight portion meter of R section bar material is by aromatic solvent
20 parts to 30 parts of oil, 1 part to 2 parts of plasticizer, 25 parts to 35 parts of natural rubber breast, 20 parts to 30 parts of polychloroprene latex, light diesel fuel 15
Part to 25 parts composition.
2. the pitch restorative according to claim 1 for asphalt pavement conserving, it is characterised in that as follows
Arrive：The desired amount of R section bars material and Type B material are obtained into the pitch restorative for asphalt pavement conserving after well mixed.
3. the pitch restorative according to claim 1 or 2 for asphalt pavement conserving, it is characterised in that during emulsifying agent is
Type emulsifying agent, slow split is split to coagulate type emulsifying agent soon, split one or both of slow hardening type emulsifying agent mixture soon；Or/and, plasticizer
It is misery for dioctyl phthalate, diisooctyl phthalate, dioctyl adipate, tricresyl phosphate and epoxidised fatty
One or more of ester.
4. the pitch restorative for asphalt pavement conserving according to claim 1 or 2 or 3, it is characterised in that Type B material
Obtain as follows：The first step, 140 DEG C to 160 DEG C are heated to by the desired amount of heavy petroleum asphalt；Second step, will be the desired amount of
Emulsifying agent, which is added in the water that temperature is 55 DEG C to 65 DEG C, obtains emulsifier solution after stirring, the mass ratio of heavy petroleum asphalt and water is
55 to 65:35 to 45 to 45；3rd step, the breast that 140 DEG C to 160 DEG C of the heavy petroleum asphalt that the first step is obtained is obtained with second step
Agent solution mixes and Type B material is obtained after emulsification treatment.
5. the pitch restorative according to claim 4 for asphalt pavement conserving, it is characterised in that in second step, stirring
Time is 30 minutes to 60 minutes；Or/and, in the 3rd step, emulsification treatment is carried out using emulsifying device.
6. the pitch restorative for asphalt pavement conserving according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that R
Section bar material is obtained as follows：Under normal temperature, by the desired amount of aromatic solvent oil, natural rubber breast, polychloroprene latex, light diesel fuel,
R section bar material are obtained after plasticizer is well mixed.
7. the pitch restorative according to claim 6 for asphalt pavement conserving, it is characterised in that incorporation time is 30
Minute was to 60 minutes.
8. a kind of system of pitch restorative for asphalt pavement conserving according to claim 1 or 3 or 4 or 5 or 6 or 7
Preparation Method, it is characterised in that carry out as follows：It is used for after the desired amount of R section bars material and Type B material are well mixed
The pitch restorative of asphalt pavement conserving.
9. a kind of pitch restorative for asphalt pavement conserving according to claim 1 or 3 or 4 or 5 or 6 or 7 makes
With method, it is characterised in that carry out as follows：Disease road surface is cleaned, by the pitch restorative spray for asphalt pavement conserving
Spill on disease road surface after the cleaning, every square metre spray 0.5 kilogram to 1.0 kilograms, it is sprayed after, conserve it is 2 hours to 4 small
When.
10. the application method of the pitch restorative according to claim 9 for asphalt pavement conserving, it is characterised in that use
Constructed in the sprinkling of the pitch restorative of asphalt pavement conserving by the way of synchronous chip sealer sprinkling, using synchronous envelope
During layer car sprinkling, dispensing particle diameter on the disease road surface after the pitch restorative of asphalt pavement conserving to sprinkling is
3mm to 5mm rubble；Or/and, temperature during construction is more than 15 DEG C；Or/and, it is sprayed after, without rainfall in 8 hours；
Or/and, before the disease road surface of pitch restorative sprinkling after the cleaning for asphalt pavement conserving, by disease road surface
Water and soil are removed；Or/and, when the fracture width on disease road surface is more than 0.5 centimetre, after first crack patch is stitched, then carry out
Sprinkling for the pitch restorative of asphalt pavement conserving；Or/and, when having pit on disease road surface, after first pit is blocked,
The sprinkling of the pitch restorative for asphalt pavement conserving is carried out again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710613881.8A CN107236458B (en) | 2017-07-25 | 2017-07-25 | Pitch restorative for asphalt pavement conserving and preparation method thereof and application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710613881.8A CN107236458B (en) | 2017-07-25 | 2017-07-25 | Pitch restorative for asphalt pavement conserving and preparation method thereof and application method |
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| CN107236458B CN107236458B (en) | 2019-07-23 |
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Cited By (4)
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| CN111548635A (en) * | 2020-06-09 | 2020-08-18 | 中交路桥北方工程有限公司 | Regenerant suitable for thermal regeneration of old asphalt pavement in cold region and preparation method thereof |
| CN111607171A (en) * | 2020-05-06 | 2020-09-01 | 马鞍山十七冶工程科技有限责任公司 | Modified polystyrene asphalt pavement curing agent and preparation method thereof |
| CN113956844A (en) * | 2021-12-01 | 2022-01-21 | 淄博恒信路面材料有限公司 | Normal-temperature tortoise net crack repairing material, preparation method and application thereof |
| CN116333596A (en) * | 2023-03-20 | 2023-06-27 | 东方雨虹民用建材有限责任公司 | Modified asphalt waterproof paint and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111607171A (en) * | 2020-05-06 | 2020-09-01 | 马鞍山十七冶工程科技有限责任公司 | Modified polystyrene asphalt pavement curing agent and preparation method thereof |
| CN111548635A (en) * | 2020-06-09 | 2020-08-18 | 中交路桥北方工程有限公司 | Regenerant suitable for thermal regeneration of old asphalt pavement in cold region and preparation method thereof |
| CN113956844A (en) * | 2021-12-01 | 2022-01-21 | 淄博恒信路面材料有限公司 | Normal-temperature tortoise net crack repairing material, preparation method and application thereof |
| CN113956844B (en) * | 2021-12-01 | 2022-08-26 | 淄博恒信路面材料有限公司 | Normal-temperature tortoise net crack repairing material, preparation method and application thereof |
| CN116333596A (en) * | 2023-03-20 | 2023-06-27 | 东方雨虹民用建材有限责任公司 | Modified asphalt waterproof paint and preparation method thereof |
| CN116333596B (en) * | 2023-03-20 | 2024-03-22 | 东方雨虹民用建材有限责任公司 | Modified asphalt waterproof paint and preparation method thereof |
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| CN107236458B (en) | 2019-07-23 |
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