CN105542487A - Quick-dry fog sealing layer material, and preparation method and application thereof - Google Patents
Quick-dry fog sealing layer material, and preparation method and application thereof Download PDFInfo
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- CN105542487A CN105542487A CN201610068692.2A CN201610068692A CN105542487A CN 105542487 A CN105542487 A CN 105542487A CN 201610068692 A CN201610068692 A CN 201610068692A CN 105542487 A CN105542487 A CN 105542487A
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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
- C08L91/00—Compositions of oils, fats or waxes; Compositions of derivatives thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
- E01C7/08—Coherent pavings made in situ made of road-metal and binders
- E01C7/35—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them
- E01C7/353—Toppings or surface dressings; Methods of mixing, impregnating, or spreading them with exclusively bituminous binders; Aggregate, fillers or other additives for application on or in the surface of toppings with exclusively bituminous binders, e.g. for roughening or clearing
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
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Abstract
The invention relates to a quick-dry fog sealing layer material, which is formed by the following components: 20wt percent to 40wt percent of asphalt-recycling agent, and 5wt percent to 25wt percent of complex solubilizer, wherein the asphalt-recycling agent is formed by deasphalted oil, heavy aromatic oil and additives; the additives are selected from at least one of the following compounds: dibutyl phthalate, epoxidized soybean oil, chlorinated methoxy fatty acid ester and parabens; the mass ratio of the deasphalted oil to the heavy aromatic oil to the additives is 1:0.1 to 1:0.05 to 0.5. The invention also relates to a preparation method and application of the quick-dry fog sealing layer material. According to the quick-dry fog sealing layer material, the heavy aromatic oil and the like during the petroleum refining process are utilized to form the asphalt-recycling agent so as to obtain the fog sealing layer material with high additional value, so that the quick-dry fog sealing layer material can play a role in preventing aging and regenerating on aged asphalt pavements. In addition, according to the quick-dry fog sealing layer material provided by the invention, the maintenance time at low temperature is only 2 to 4h, which is shortened by over half the time for sealing and maintaining of the existing fog sealing layer material.
Description
Technical field
The present invention relates to the mist sealing for asphalt pavement conserving, relate more specifically to a kind of rapid-curing cutback mist sealing material and its production and use.
Background technology
To the end of the year 2014, China's motorway total kilometrage will have reached 11.19 ten thousand kilometers, and national total mileage of highway reaches 4,460,000 kilometers.Bituminous pavement, when the various ambient conditions of Long contact time (such as, high temperature, rainwater, friction etc.), easily occurs aging, and namely a series of change occurs for the chemical property of bituminous pavement and physical property.In chemical characteristics, along with aging carrying out, constantly there is polycondensation in the small molecule component in pavement asphalt, to macromolecular bituminous matter future development.The change of this chemical property is reflected in the change of physical property, and namely pitch becomes fragile hardening, and road surface starts whiting.The index such as penetration degree, softening temperature of aged asphalt is all deteriorated, and finally causes bituminous pavement occur crack or come off.Usually needed to carry out maintenance to extend pavement life before serious destruction occurs bituminous pavement.Maintenance of surface refers to and carried out maintenance to it before serious destruction appears in road, and mist sealing regeneration techniques is a kind of very effective maintenance of surface means.
Mist sealing regeneration techniques is on oil mat, spray the strong mist sealing material of one deck penetration degree, the adhesion property of rejuvenating aged bituminous pavement and water permeability resistance energy by the compensation of the oil content to bituminous pavement, and road surface is closed by the waterproof layer forming one deck tight, adhesive capacity between recovery road surface gathers materials, prolonging service life of pavement.Mist sealing regeneration techniques is mainly used in, on light to moderate impaired road surface, upgrading and protecting old bituminous pavement, filling up little gap and surface pore, increases the black colorant of bituminous pavement, strengthens the contrast of pitch and roadmarking.Road surface after the regeneration of mist sealing regeneration techniques, can recover the surface adhesion on road surface, small hole is also filled up, and can effectively improve road surface waterproof performance, the performance on road surface can extend 3-5, has the advantages such as maintenance cost is low, environmental pollution is little, open to traffic is fast simultaneously.
Publication number is CN104446163A, denomination of invention is the Chinese invention patent application of " a kind of mist sealing material and preparation method thereof ", disclose a kind of mist sealing material prepared by emulsified bitumen, properties-correcting agent and nano material etc., its main ingredient is emulsified bitumen, containing 40%-60% water, the fencing lawn time under this mist sealing material appropriate temperature conditions is by day 4 ~ 12h.Publication number is CN102276996A, denomination of invention is the Chinese invention patent application of " mist sealing material and preparation method thereof ", disclose a kind of method preparing mist sealing material with A, B component mixed diluting, wherein in component A, main component is emulsified bitumen, containing a certain amount of moisture, the fencing lawn time under this mist sealing material appropriate temperature conditions is by day 3 ~ 10h.Obviously, existing above-mentioned mist sealing material is water base mist sealing material, and road closed curing time is longer.
Summary of the invention
In order to the problem that the road closed curing time solving the existing mist sealing material that above-mentioned prior art exists is longer, the present invention aims to provide a kind of rapid-curing cutback mist sealing material and its production and use.
According to an aspect of the present invention, a kind of rapid-curing cutback mist sealing material is provided, composed of the following components: the bitumen regenerant of 20wt% ~ 40wt%, this bitumen regenerant is made up of deasphalted oil, heavy aromatics oil and additive, this additive is selected from least one in the group be made up of following compound: dibutyl phthalate, epoxy soybean oil, chloromethoxy fatty acid ester and hydroxybenzoate, wherein, deasphalted oil, heavy aromatics mass ratio that is oily and additive are 1:0.1-1:0.05-0.5; The organic solvent of 45wt% ~ 65wt%; And the solubility promoter of 5wt% ~ 25wt%.The present invention utilizes the heavy aromatics wet goods of petroleum refining process to form bitumen regenerant, and utilize organic solvent and solubility promoter to dissolve this bitumen regenerant, thus obtain the mist sealing material of high added value, the effect of pre-anti-aging and regeneration can be played to aged asphalt road surface.
Described organic solvent is selected from least one in the group be made up of following compound: ethanol and propyl carbinol.
Described solubility promoter is selected from least one in the group be made up of following compound: N-Methyl pyrrolidone, hexalin, N,N-dimethylacetamide and Isosorbide-5-Nitrae-dioxane.
This rapid-curing cutback mist sealing material is composed of the following components: the bitumen regenerant of 25wt% ~ 35wt%; The organic solvent of 50wt% ~ 60wt%; And the solubility promoter of 10wt% ~ 20wt%.
This rapid-curing cutback mist sealing material is composed of the following components: the bitumen regenerant of 30wt%; The organic solvent of 55wt%; And the solubility promoter of 15wt%.
Deasphalted oil, heavy aromatics mass ratio that is oily and additive are 1:0.5:0.15.
According to another aspect of the present invention, a kind of preparation method of rapid-curing cutback mist sealing material is also provided, comprises step: S1, deasphalted oil, heavy aromatics oil and additive are mixed to get bitumen regenerant; S2, joins described bitumen regenerant in described organic solvent and described solubility promoter and is mixed to get rapid-curing cutback mist sealing material.
Described step S2 comprises: S21, and described organic solvent and described solubility promoter are mixed to form complex solvent; S22, described bitumen regenerant joins in described complex solvent and is mixed to get rapid-curing cutback mist sealing material.Preferably, in described S21, described organic solvent and described solubility promoter are mixed to form complex solvent at normal temperatures.
In described step S22, described bitumen regenerant joins in described complex solvent and is uniformly mixed at 10-60 DEG C, thus guarantees that bitumen regenerant has good mobility.
In described step S22, described bitumen regenerant joins in described complex solvent after being warming up to 40 ~ 70 DEG C again and mixes.Preferably, described bitumen regenerant joins in described complex solvent after being warming up to 40 ~ 70 DEG C again and is uniformly mixed 1-30min.
In described step S1, deasphalted oil, heavy aromatics oil and additive are uniformly mixed at 20 ~ 80 DEG C, thus preparation has the bitumen regenerant of good fluidity.Preferably, deasphalted oil, heavy aromatics oil and additive are uniformly mixed 0.5-2h at 40 ~ 80 DEG C.
According to a further aspect of the invention, provide again a kind of purposes of rapid-curing cutback mist sealing material, this rapid-curing cutback mist sealing material is sprayed on bituminous pavement.Preferably, described bituminous pavement is high speed asphalt roads, urban elevated road and airfield runway.Preferably, this rapid-curing cutback mist sealing material is evenly sprayed on aged asphalt road surface.
Rapid-curing cutback mist sealing material provided by the invention, the curing time under low temperature (night) condition is only 2 ~ 4h, more over half than the fencing lawn time shorten of existing mist sealing material.
Accompanying drawing explanation
Fig. 1 is the trend map of the rejuvenating aged Asphalt Penetration change of rapid-curing cutback mist sealing material according to the present invention;
Fig. 2 a is the schematic diagram before the rejuvenating aged bituminous pavement of application rapid-curing cutback mist sealing twice-laid stuff of the present invention;
Fig. 2 b is the schematic diagram after the rejuvenating aged bituminous pavement of application rapid-curing cutback mist sealing twice-laid stuff of the present invention;
Fig. 3 a is the actual road surface effect figure before the rejuvenating aged bituminous pavement of application rapid-curing cutback mist sealing twice-laid stuff of the present invention;
Fig. 3 b is the actual road surface effect figure after the rejuvenating aged bituminous pavement of application rapid-curing cutback mist sealing twice-laid stuff of the present invention;
Fig. 4 is the Photomicrograph according to rapid-curing cutback mist sealing material of the present invention.
Embodiment
Below in conjunction with accompanying drawing, provide preferred embodiment of the present invention, and be described in detail.
Embodiment 1
Bitumen regenerant: be made up of deasphalted oil 197g, heavy aromatics oil 99g and hydroxybenzoate 29g;
Organic solvent: ethanol 550g
Solubility promoter: N-methylpyrrole alkane 125g
Rapid-curing cutback mist sealing material is produced by following preparation method:
S1, prepares bitumen regenerant
Deasphalted oil, heavy aromatics oil and hydroxybenzoate are stirred 1h according to proportioning at 70 DEG C mix, obtain bitumen regenerant, be incubated for subsequent use.
S21, configuration complex solvent
At room temperature take quantitative ethanol and solubility promoter mixes, obtain complex solvent.
S22, prepares rapid-curing cutback mist sealing material
Start agitator, in complex solvent, constantly add bitumen regenerant, stir 10 minutes, obtain rapid-curing cutback mist sealing material 1kg.
Embodiment 2
Bitumen regenerant: be made up of deasphalted oil 271g, heavy aromatics oil 91g and hydroxybenzoate 18g;
Organic solvent: ethanol 460g
Solubility promoter: N-methylpyrrole alkane 160g
Rapid-curing cutback mist sealing material is produced by following preparation method:
S1, prepares bitumen regenerant
Deasphalted oil, heavy aromatics oil and hydroxybenzoate are stirred 1h according to proportioning at 60 DEG C mix, obtain bitumen regenerant, be incubated for subsequent use.
S21, configuration complex solvent
At room temperature take quantitative ethanol and solubility promoter mixes, obtain complex solvent.
S22, prepares rapid-curing cutback mist sealing material
Start agitator, in complex solvent, constantly add bitumen regenerant, stir 10 minutes, obtain rapid-curing cutback mist sealing material 1kg.
Embodiment 3
Bitumen regenerant: be made up of deasphalted oil 273g, heavy aromatics oil 91g and hydroxybenzoate 36g;
Organic solvent: ethanol 450g
Solubility promoter: N-methylpyrrole alkane 150g
Rapid-curing cutback mist sealing material is produced by following preparation method:
S1, prepares bitumen regenerant
Deasphalted oil, heavy aromatics oil and hydroxybenzoate are stirred 1h according to proportioning at 60 DEG C mix, obtain bitumen regenerant, be incubated for subsequent use.
S21, configuration complex solvent
At room temperature take quantitative ethanol and solubility promoter mixes, obtain complex solvent.
S22, prepares rapid-curing cutback mist sealing material
Start agitator, in complex solvent, constantly add bitumen regenerant, stir 10 minutes, obtain rapid-curing cutback mist sealing material 1kg.
Embodiment 4 is tested according to the regenerability of rapid-curing cutback mist sealing material of the present invention
Pour in penetration degree mould by aged asphalt heating, room temperature cools 1 hour.To rapid-curing cutback mist sealing material 3g prepared by aged asphalt instillation embodiment 1, jog film forming.Put into 50 DEG C of baking ovens, simulation road surface mist sealing regenerator regeneration effect in summer, surveys a penetration degree by GB/T4509-1998 method every 1h, record 6 penetration degrees, as shown in Figure 1, after adding mist sealing regenerator, the penetration degree of aged asphalt returns to gradually close to new pitch level.
Embodiment 5 is according to the effect of rapid-curing cutback mist sealing material of the present invention
Rapid-curing cutback mist sealing material embodiment 2 prepared is according to 0.2kg/m
2bituminous pavement or High Grade Bitumen Pavement that amount is needing maintenance evenly spray, then spray a certain amount of protective material again.With common water base mist sealing material for contrast is (by water base mist sealing material according to 0.2kg/m
2bituminous pavement or High Grade Bitumen Pavement that amount is needing maintenance evenly spray; then spray a certain amount of protective material again); the tracing detection adhesion of test section and the impact of abrasion resistant effect, osmotic effect, regeneration effect, impervious water function and road pavement frictional coefficient, Pavement Performance detected result sees the following form 1:
The effect of composition prepared by table 1 embodiment 2
From upper table 1, wear-resisting and the adhesion property of the rapid-curing cutback mist sealing material prepared by embodiment 2 is excellent, regeneration effect is good, can be good at the infiltration coefficient reducing road surface, and the loss of the frictional coefficient of road pavement is no more than 10%, can be good at appearance and the performance of improving aged asphalt road surface.Relative to water base mist sealing material, rapid-curing cutback mist sealing material according to the present invention can shorten the open to traffic time.In a word, rapid-curing cutback mist sealing material according to the present invention is a kind of rapid-curing cutback mist sealing material for maintenance asphalt roads well.
Embodiment 6 is according to rapid-curing cutback mist sealing material road surface of the present invention effect
Rapid-curing cutback mist sealing material prepared by embodiment 3 is constructed by following construction technology process:
(1) road surface is cleaned: remove dust sandstone, greasy dirt, leaf, the foreign material such as rubble, the facilities such as road pavement flag line kerb are protected, and carry out pre-treatment to diseases such as some cracklins;
(2) material prepares: joined by the above-mentioned rapid-curing cutback mist sealing twice-laid stuff prepared and have in the high pressure small area spray appliance of even spraying function.
(3) spray: the nozzle of adjustment high pressure spray appliance, the spraying range predetermined according to road surface and route, arrange fountain height and spray.
(4) close traffic carries out health, sprays protective wire simultaneously.
(5) recover graticule, after health 2-4h, get final product open to traffic.
According to the rejuvenating aged bituminous pavement effect of rapid-curing cutback mist sealing material of the present invention as shown in Fig. 2 b and Fig. 3 b, it can be good at improving aged asphalt road surface appearance, has the well black effect of dye.Rapid-curing cutback mist sealing material according to the present invention has the advantage of quick open to traffic simultaneously.
Embodiment 7 is according to the stability of rapid-curing cutback mist sealing material of the present invention
The rapid-curing cutback mist sealing material of embodiment 1 is loaded stable pipe, and record described composition five days stability in storagies according to standard JTG/T0655-1993, concrete steps are as follows:
(1) cooled rapid-curing cutback mist sealing material is slowly injected in stability test pipe, make liquid level reach 250mL graticule place on tube wall.Should note during injection that arm must not have bubble, then, be stoppered the mouth of pipe with stopper.The stability test pipe that Sheng sample is closed is placed on experiment porch, at room temperature leaves standstill 5 round the clock.
(2) after leaving standstill, extract gently and prop up the stopper of the mouth of pipe, flow out about 50g from upper the mouth of pipe and access one and claimed in the evaporation residue test chamber of quality; Unplug the stopper of lower branch line mouth again, sample more than lower branch line is all released, flow into another container, then lower branch line sample once is fully shaken up, rolling stabilizing pipe, residue sample in pipe is about 50g from lower branch line mouth effluent test sample, accesses the 3rd and claim in the evaporation residue test chamber of quality.Measure upper and lower two portions evaporation residue content respectively.
Stability in storage according to rapid-curing cutback mist sealing material of the present invention is calculated as follows:
S
Z＝|P
A-P
B|
Wherein:
S
zthe stability in storage (%) of-sample;
P
a-store rami posterior superior tube portion sample evaporation residuals content (%);
P
b-store rami posterior inferior tube portion sample evaporation residuals content (%).
That tests the results are shown in Table 2:
Table 2 mist sealing material stability
From result in table, be 1.5% according to mist sealing material of the present invention five days stability, the excellent in stability of rapid-curing cutback mist sealing regenerator.By Photomicrograph, as shown in Figure 4, the rapid-curing cutback mist sealing material medium pitch regenerator dispersion effect of preparation is good.
In fact, experimental verification, all can realize good maintenance to bituminous pavement, and the curing time under low temperature (night) condition is only 2 ~ 4h according to the rapid-curing cutback mist sealing material that following table 3 is filled a prescription:
Table 3
Above-described, be only preferred embodiment of the present invention, and be not used to limit scope of the present invention, the above embodiment of the present invention can also make a variety of changes.Namely every claims according to the present patent application and description are done simple, equivalence change and modify, and all fall into the claims of patent of the present invention.The not detailed description of the present invention be routine techniques content.
Claims (10)
1. a rapid-curing cutback mist sealing material, is characterized in that, this rapid-curing cutback mist sealing material is composed of the following components:
The bitumen regenerant of 20wt% ~ 40wt%, this bitumen regenerant is made up of deasphalted oil, heavy aromatics oil and additive, this additive is selected from least one in the group be made up of following compound: dibutyl phthalate, epoxy soybean oil, chloromethoxy fatty acid ester and hydroxybenzoate, wherein, deasphalted oil, heavy aromatics mass ratio that is oily and additive are 1:0.1-1:0.05-0.5;
The organic solvent of 45wt% ~ 65wt%; And
The solubility promoter of 5wt% ~ 25wt%.
2. rapid-curing cutback mist sealing material according to claim 1, it is characterized in that, described organic solvent is selected from least one in the group be made up of following compound: ethanol and propyl carbinol.
3. rapid-curing cutback mist sealing material according to claim 1, it is characterized in that, described solubility promoter is selected from least one in the group be made up of following compound: N-Methyl pyrrolidone, hexalin, N,N-dimethylacetamide and Isosorbide-5-Nitrae-dioxane.
4. rapid-curing cutback mist sealing material according to claim 1, is characterized in that, this rapid-curing cutback mist sealing material is composed of the following components: the bitumen regenerant of 25wt% ~ 35wt%; The organic solvent of 50wt% ~ 60wt%; And the solubility promoter of 10wt% ~ 20wt%.
5. a preparation method for the rapid-curing cutback mist sealing material according to any one of the claims 1-4, is characterized in that, comprise step:
S1, is mixed to get bitumen regenerant by deasphalted oil, heavy aromatics oil and additive;
S2, joins described bitumen regenerant in described organic solvent and described solubility promoter and is mixed to get rapid-curing cutback mist sealing material.
6. preparation method according to claim 5, is characterized in that, described step S2 comprises:
S21, described organic solvent and described solubility promoter are mixed to form complex solvent;
S22, described bitumen regenerant joins in described complex solvent and is mixed to get rapid-curing cutback mist sealing material.
7. preparation method according to claim 6, is characterized in that, in described step S22, described bitumen regenerant joins in described complex solvent and is uniformly mixed at 10-60 DEG C.
8. preparation method according to claim 6, is characterized in that, in described step S22, described bitumen regenerant joins in described complex solvent after being warming up to 40 ~ 70 DEG C again and mixes.
9. preparation method according to claim 5, is characterized in that, in described step S1, deasphalted oil, heavy aromatics oil and additive are uniformly mixed at 20 ~ 80 DEG C.
10. a purposes for the rapid-curing cutback mist sealing material according to any one of the claims 1-4, is characterized in that, this rapid-curing cutback mist sealing material is sprayed on bituminous pavement.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111607240A (en) * | 2020-04-13 | 2020-09-01 | 佛山市交通科技有限公司 | Asphalt pavement regeneration sealing agent, preparation method thereof and asphalt pavement maintenance method |
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| CN101691427A (en) * | 2009-10-21 | 2010-04-07 | 中国海洋石油总公司 | Blending-process method for producing environment-friendly rubber oil |
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| CN105542487B (en) | 2018-03-06 |
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