CN102701787A - Anti-freezing damage repair material for asphalt pavements and preparation method thereof - Google Patents
Anti-freezing damage repair material for asphalt pavements and preparation method thereof Download PDFInfo
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- CN102701787A CN102701787A CN2012102155169A CN201210215516A CN102701787A CN 102701787 A CN102701787 A CN 102701787A CN 2012102155169 A CN2012102155169 A CN 2012102155169A CN 201210215516 A CN201210215516 A CN 201210215516A CN 102701787 A CN102701787 A CN 102701787A
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Abstract
The invention discloses an anti-freezing damage repair material for asphalt pavements and a preparation method thereof, which relate to an asphalt pavement repair material and a preparation method thereof and are used for solving the problem of damages caused by incapability of resisting repeated freezing in the conventional maintenance. The repair material is prepared from road petroleum hard asphalt, high-temperature coal tar and a viscosity-reducing penetrating agent. The preparation method comprises the following steps of: grinding road petroleum hard asphalt into asphalt powder; adding high-temperature coal tar into the viscosity-reducing penetrating agent, and stirring to obtain a mixture; and adding the asphalt powder into the mixture, and stirring to obtain the anti-freezing damage repair material for asphalt pavements; or smashing road petroleum hard asphalt into asphalt particles; putting the asphalt particles into the viscosity-reducing penetrating agent, and stirring in a hermetic state to obtain an asphalt solution; and adding the high-temperature coal tar into the asphalt solution, and stirring to obtain the anti-freezing damage repair material for asphalt pavements. The repair material prepared with the preparation method has the properties of excellent permeability, bonding force and the like, and is used for repairing asphalt pavements.
Description
Technical field
The present invention relates to bituminous pavement repair materials and preparation method thereof.
Background technology
In winter, plateau, river, Yunnan-Guizhou humidity owing to receive the restriction of geographical conditions, very easily forms the disastrous weather that congeals by the district, thereby causes the road surface to coagulate ice.As everyone knows, moisture is the prerequisite that permeable disease takes place on the road surface, and asphalt is in communication with the outside the moisture that exists for of hole and invades material internal effective way is provided.When the phenomenon of congealing took place, outside air temperature is reciprocation cycle in-10～10 ℃ of scopes generally, and along with the reduction of temperature, water becomes solid-state back volume to expand rapidly by liquid transformation, thereby the pore wall of bituminous pavement is produced very important frost-heave force; In the thaw process; In case rainwater gets into surface layer, under the effect of vehicular load, free water will become moving water and wash away in hole inside and seam crossing; Long this circulation will reduce top layer asphaltic binder and the viscosifying power that gathers materials; Cause diseases such as the upper layer fine aggregate peels off, pitted skin, can aggravate the original degree of disease in road surface simultaneously, cause the decline of mechanical properties such as pavement strength.Ice and snow disaster in 2008 has refreshed the record of meeting in 50 years since the establishment of the nation especially, brings very big inconvenience for national product and people's lives, causes serious social influence, and how preventing and treating the weather that congeals becomes problem demanding prompt solution to the destruction of highway facilities.At present to the punishment technical study of icing bituminous pavement with fixed attention focus mostly in ice clearance technique with fixed attention, congeal after damaging should acute recovery technique, comprise pit repairing isostructuralism reparation aspect.In China; When road structure deposits yields severe diseases and when influencing its use properties comparatively; Construction department often considers to take to regenerate, the means of overlay or structural reparation are safeguarded, and when repairing, seldom considers to regenerate or overlays material to freeze-thawing resistant and the requirement of resisting chemical corrosion resistance.Under the cold in the winter time environment, such regeneration or overlay material can't be resisted the destruction that multigelation produces, thereby have increased maintenance cost.Coagulate ice damage and destructive ultimate principle according to bituminous pavement; To icing the micro-damage that the road pavement material causes with fixed attention; Take the effective for repairing measure as untimely; The surface will take place and fall diseases such as grain, loose damage in the road table, and research road table material function property reinforcement technology, the contacting permeation power and the viscosifying power that improve repair materials targetedly are crucial.Given this, from above-mentioned angle, the functional repair materials of the high cohesive force of research and development bituminous pavement anti-freezing ice damage, hypertonicity.
Summary of the invention
The present invention will solve that existing micro-damage that the road pavement material causes is taked to regenerate more to icing with fixed attention, the means of overlay or structural reparation are safeguarded; This maintenance can't be resisted the destructive problem that multigelation produces, and a kind of bituminous pavement anti-freezing ice injury repairing material and preparation method thereof is provided.
Bituminous pavement anti-freezing ice injury repairing material of the present invention is processed by 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene.
Above-mentioned bituminous pavement anti-freezing ice injury repairing preparation methods is carried out according to the following steps:
One, takes by weighing 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene;
Two, the road oil hard pitch grinding that takes by weighing in the step 1 is the asphalt powder of particle diameter≤0.3mm;
Three, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the viscosity reduction permeate agent that takes by weighing in the step 1, stirring obtains mixture;
Four, the asphalt powder that step 2 is obtained joins in the mixture that step 3 obtains, and stirs, and obtains bituminous pavement anti-freezing ice injury repairing material.
The another kind of preparation method of above-mentioned bituminous pavement anti-freezing ice injury repairing material carries out according to the following steps:
One, takes by weighing 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene;
Two, the road oil hard pitch pulverizing that takes by weighing in the step 1 is the pitch particle of particle diameter 2.36～4.75cm;
Three, the pitch particle that step 2 is obtained joins in the viscosity reduction permeate agent, and under the condition of sealing, mechanical stirring 24～96h obtains bituminous solution;
Four, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the bituminous solution that step 3 obtains, stirring obtains bituminous pavement anti-freezing ice injury repairing material.
The prepared bituminous pavement anti-freezing ice injury repairing material of the present invention has excellent chemosmosis performance.Can form one at the road table and repair thin layer uniformly; And the hypertonicity repair materials is because its outstanding chemosmosis performance; Cling property to former pavement structure has no adverse effects, and ice causes damage to bituminous pavement to prevent moisture to reach with fixed attention, and this is most important to improving the road surface traffic safety.Because repair materials is the asphaltic base product, and is better with the adhesion property of original asphalt behind the curing of coating, the open pores hole wall that can be connected with air to the test specimen surface is effectively implemented protection.Behind several times multigelation Circulation, the relatively poor phenomenons of adhesiving effect such as not having crackle, peeling of filming, anti-freezing property is better.Be basis with the wear test of the wet wheel of slurry seal, through behind 20 freeze-thaw cycle, the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials is 894.1g/m
2, its wear(ing)value of test specimen of spraying repair materials is merely 161.8g/m
2, the test specimen wear(ing)value of spraying common emulsified asphalt material is 540g/m
2, the freeze-thaw-adhesion property of the bituminous pavement anti-freezing ice injury repairing material that visible the present invention is prepared is excellent.Be the basis with the wear test of the wet wheel of slurry seal, behind the immersion 6d, its wear(ing)value of test specimen of spraying repair materials is 283.9g/m
2, the test specimen wear(ing)value of spraying emulsified bitumen is 521g/m
2, and the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials has surpassed 1200g/m
2, the water repelling property of the bituminous pavement anti-freezing ice injury repairing material that visible the present invention is prepared is excellent.
In sum; The prepared bituminous pavement anti-freezing ice injury repairing material of the present invention has performances such as excellent permeation property, cohesive force; This guarantees the use properties of road and attached structure thereof for solving China's plateau humidity by district's road traffic safety problem in winter, ensures normal production of the people and life; Have great economic benefit and social effect, the preventive maintenance new technology that formation is had regional characteristic will have important prograding.
The bituminous pavement anti-freezing ice injury repairing material of the present invention's preparation is used for the reparation of bituminous pavement.
Description of drawings
Fig. 1 is the freeze-thaw-wear hardness figure of differing materials; Wherein 1 representative sprays the freeze-thaw-wear hardness of the embodiment one prepared bituminous pavement anti-freezing ice bitumen mixture specimen of injury repairing material; 2 representatives do not spray the freeze-thaw-wear hardness of the pitch standard specimen of repair materials, the freeze-thaw-wear hardness of the bitumen mixture specimen of 3 representative spraying emulsified bituminous materials.
Fig. 2 is the anti-water mill consumption performance map of differing materials; Wherein the anti-water mill consumption of the 4 representative spraying embodiment one prepared bituminous pavement anti-freezing ice bitumen mixture specimens of injury repairing material can; 5 representatives do not spray the anti-water mill consumption ability of the pitch standard specimen of repair materials, the anti-water mill consumption ability of the bitumen mixture specimen of 6 representative spraying emulsified bitumens.
Embodiment
Technical scheme of the present invention is not limited to following cited embodiment, also comprises the arbitrary combination between each embodiment.
Embodiment one: this embodiment bituminous pavement anti-freezing ice injury repairing material is processed by 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene.
The bituminous pavement anti-freezing ice injury repairing material of this embodiment has excellent chemosmosis performance; Can form one at the road table and repair thin layer uniformly; And the hypertonicity repair materials is because its outstanding chemosmosis performance; Cling property to former pavement structure has no adverse effects, and ice causes damage to bituminous pavement to prevent moisture to reach with fixed attention, and this is most important to improving the road surface traffic safety.Because repair materials is the asphaltic base product, and is better with the adhesion property of original asphalt behind the curing of coating, the open pores hole wall that can be connected with air to the test specimen surface is effectively implemented protection.Behind several times multigelation Circulation, the relatively poor phenomenons of adhesiving effect such as not having crackle, peeling of filming, anti-freezing property is better.Be basis with the wear test of the wet wheel of slurry seal, through behind 20 freeze-thaw cycle, the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials is 894.1g/m
2, its wear(ing)value of test specimen of spraying repair materials is merely 161.8g/m
2, the test specimen wear(ing)value of spraying common emulsified asphalt material is 540g/m
2, the freeze-thaw-adhesion property of the bituminous pavement anti-freezing ice injury repairing material of visible embodiment is excellent.Be the basis with the wear test of the wet wheel of slurry seal, behind the immersion 6d, its wear(ing)value of test specimen of spraying repair materials is 283.9g/m
2, the test specimen wear(ing)value of spraying emulsified bitumen is 521g/m
2, and the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials has surpassed 1200g/m
2, the water repelling property of visible this embodiment bituminous pavement anti-freezing ice injury repairing material is excellent.
Embodiment two: this embodiment bituminous pavement anti-freezing ice injury repairing material is processed by 20～30 parts road oil hard pitch, 40～70 parts coal-tar heavy oil and 40～50 parts viscosity reduction permeate agent by mass fraction.Other is identical with embodiment one.
Embodiment three: what this embodiment was different with embodiment one or two is: said ester is an ETHYLE ACETATE, and the verivate of said benzene is a toluene.Other is identical with embodiment one or two.
Embodiment four: this embodiment bituminous pavement anti-freezing ice injury repairing preparation methods is carried out according to the following steps:
One, takes by weighing 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene;
Two, the road oil hard pitch grinding that takes by weighing in the step 1 is the asphalt powder of particle diameter≤0.3mm;
Three, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the viscosity reduction permeate agent that takes by weighing in the step 1, stirring obtains mixture;
Four, the asphalt powder that step 2 is obtained joins in the mixture that step 3 obtains, and stirs, and obtains bituminous pavement anti-freezing ice injury repairing material.
The prepared bituminous pavement anti-freezing ice injury repairing material of this embodiment has excellent chemosmosis performance; Can form one at the road table and repair thin layer uniformly; And the hypertonicity repair materials is because its outstanding chemosmosis performance; Cling property to former pavement structure has no adverse effects, and ice causes damage to bituminous pavement to prevent moisture to reach with fixed attention, and this is most important to improving the road surface traffic safety.Because repair materials is the asphaltic base product, and is better with the adhesion property of original asphalt behind the curing of coating, the open pores hole wall that can be connected with air to the test specimen surface is effectively implemented protection.Behind several times multigelation Circulation, the relatively poor phenomenons of adhesiving effect such as not having crackle, peeling of filming, anti-freezing property is better.Be basis with the wear test of the wet wheel of slurry seal, through behind 20 freeze-thaw cycle, the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials is 894.1g/m
2, its wear(ing)value of test specimen of spraying repair materials is merely 161.8g/m
2, the test specimen wear(ing)value of spraying common emulsified asphalt material is 540g/m
2, the freeze-thaw-adhesion property of the bituminous pavement anti-freezing ice injury repairing material that visible this embodiment is prepared is excellent.Be the basis with the wear test of the wet wheel of slurry seal, behind the immersion 6d, its wear(ing)value of test specimen of spraying repair materials is 283.9g/m
2, the test specimen wear(ing)value of spraying emulsified bitumen is 521g/m
2, and the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials has surpassed 1200g/m
2, the water repelling property of the bituminous pavement anti-freezing ice injury repairing material that visible this embodiment is prepared is excellent.
Embodiment five: what this embodiment and embodiment four were different is: in the step 3, with the speed of 2000rpm, mechanical stirring 2～3min obtains mixture.Other is identical with embodiment four.
Embodiment six: what this embodiment was different with embodiment four or five is: in the step 4, with the speed of 2000rpm, mechanical stirring 15～20min obtains bituminous pavement anti-freezing ice injury repairing material.Other is identical with embodiment four or five.
Embodiment seven: this embodiment bituminous pavement anti-freezing ice injury repairing preparation methods is carried out according to the following steps:
One, takes by weighing 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene;
Two, the road oil hard pitch pulverizing that takes by weighing in the step 1 is the pitch particle of particle diameter 2.36～4.75cm;
Three, the pitch particle that step 2 is obtained joins in the viscosity reduction permeate agent, and under the condition of sealing, mechanical stirring 24～96h obtains bituminous solution;
Four, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the bituminous solution that step 3 obtains, stirring obtains bituminous pavement anti-freezing ice injury repairing material.
The prepared bituminous pavement anti-freezing ice injury repairing material of this embodiment has excellent chemosmosis performance; Can form one at the road table and repair thin layer uniformly; And the hypertonicity repair materials is because its outstanding chemosmosis performance; Cling property to former pavement structure has no adverse effects, and ice causes damage to bituminous pavement to prevent moisture to reach with fixed attention, and this is most important to improving the road surface traffic safety.Because repair materials is the asphaltic base product, and is better with the adhesion property of original asphalt behind the curing of coating, the open pores hole wall that can be connected with air to the test specimen surface is effectively implemented protection.Behind several times multigelation Circulation, the relatively poor phenomenons of adhesiving effect such as not having crackle, peeling of filming, anti-freezing property is better.Be basis with the wear test of the wet wheel of slurry seal, through behind 20 freeze-thaw cycle, the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials is 894.1g/m
2, its wear(ing)value of test specimen of spraying repair materials is merely 161.8g/m
2, the test specimen wear(ing)value of spraying common emulsified asphalt material is 540g/m
2, the freeze-thaw-adhesion property of the bituminous pavement anti-freezing ice injury repairing material that visible this embodiment is prepared is excellent.Be the basis with the wear test of the wet wheel of slurry seal, behind the immersion 6d, its wear(ing)value of test specimen of spraying repair materials is 283.9g/m
2, the test specimen wear(ing)value of spraying emulsified bitumen is 521g/m
2, and the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials has surpassed 1200g/m
2, the water repelling property of the bituminous pavement anti-freezing ice injury repairing material that visible this embodiment is prepared is excellent.
Embodiment eight: what this embodiment and embodiment seven were different is: in the step 3, with the speed of 1000rpm, mechanical stirring 24～96h obtains bituminous solution.Other is identical with embodiment seven.
Embodiment nine: what this embodiment was different with embodiment seven or eight is: in the step 4, with the speed of 2000rpm, mechanical stirring 15～20min obtains bituminous pavement anti-freezing ice injury repairing material.Other is identical with embodiment seven or eight.
Adopt following examples and contrast experiment to verify beneficial effect of the present invention:
Embodiment one:
Present embodiment bituminous pavement anti-freezing ice injury repairing preparation methods is carried out according to the following steps:
One, taking by weighing 20 parts of softening temperatures by mass fraction is 82 ℃ road oil hard pitch, 40 parts coal-tar heavy oil and 40 parts toluene;
Two, the road oil hard pitch grinding that takes by weighing in the step 1 is the asphalt powder of particle diameter≤0.3mm;
Three, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the toluene that takes by weighing in the step 1, with the speed of 2000rpm, mechanical stirring 2min obtains mixture;
Four, the asphalt powder that step 2 is obtained joins in the mixture that step 3 obtains, and with the speed of 2000rpm, mechanical stirring 15min obtains bituminous pavement anti-freezing ice injury repairing material.
Embodiment two:
Present embodiment bituminous pavement anti-freezing ice injury repairing preparation methods is carried out according to the following steps:
One, taking by weighing 30 parts of softening temperatures by mass fraction is 82 ℃ road oil hard pitch, 30 parts coal-tar heavy oil and 40 parts toluene;
Two, be the pitch particle of 2.36～4.75cm with the road oil hard pitch pulverizing that takes by weighing in the step 1 for particle diameter;
Three, the pitch particle that step 2 is obtained joins in the toluene, and under the condition of sealing, with the speed of 1000rpm, mechanical stirring 24h obtains bituminous solution;
Four, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the bituminous solution that step 3 obtains, with the speed of 2000rpm, mechanical stirring 15min obtains bituminous pavement anti-freezing ice injury repairing material.
Embodiment three:
Present embodiment bituminous pavement anti-freezing ice injury repairing preparation methods is carried out according to the following steps:
One, taking by weighing 20 parts of softening temperatures by mass fraction is 82 ℃ road oil hard pitch, 40 parts coal-tar heavy oil, 20 parts toluene and 20 parts ETHYLE ACETATE;
Two, the road oil hard pitch grinding that takes by weighing in the step 1 is the asphalt powder of particle diameter≤0.3mm;
Three, the coal-tar heavy oil that takes by weighing in the step 1, toluene and ETHYLE ACETATE are mixed, with the speed of 1000rpm, mechanical stirring 2min obtains mixture;
Four, the asphalt powder that step 2 is obtained joins in the mixture that step 3 obtains, and with the speed of 2000rpm, mechanical stirring 15min obtains bituminous pavement anti-freezing ice injury repairing material.
Embodiment one, embodiment two and the embodiment three raw materials used commercially available prod that are, wherein the proportion of coal-tar heavy oil is 1.2, the viscosity reduction permeate agent is selected industrial grade toluene or ETHYLE ACETATE for use, purity＞95%.
The test of invention effect assessment:
One, the influence of the hypertonicity of repair materials ability and road pavement anti-slide performance thereof
Test one:
Embodiment one prepared bituminous pavement anti-freezing is iced the injury repairing material with 0.3kg/m
2Consumption be sprayed on the highway section 1 respectively, on highway section 2 and the highway section 3, the frictional coefficient after testing the frictional coefficient in former highway section and spraying bituminous pavement anti-freezing ice injury repairing material;
Test two:
With emulsified bituminous materials with 0.3kg/m
2Consumption be sprayed on highway section 4, highway section 5 and the highway section 6 frictional coefficient after testing the frictional coefficient in former highway section and spraying emulsified bituminous materials respectively.
Test one is as shown in table 1 with the test result of test two:
Table 1 cling property testing data
The prepared bituminous pavement anti-freezing ice injury repairing material of the present invention is compared with emulsified bitumen class material, has excellent chemosmosis performance.With 0.3kg/m
2The sprinkling consumption be example, after the hypertonicity repair materials is sprayed to the bituminous pavement top layer, gently choose pavement structure with blade before solidifying; Top layer pitch is softening; Average material depth of penetration＞2mm, and can form one at the road table and repair thin layer uniformly prevents moisture and coagulates ice bituminous pavement is caused damage.Because the chemosmosis poor-performing of common emulsified asphalt class material, behind the emulsified bitumen breakdown of emulsion, residual solid content will adhere to former pavement structure top layer; Cause road table construction depth to descend, cling property significantly reduces, and compares average decline 25～30% with primary structure; And the hypertonicity repair materials is because its outstanding chemosmosis performance; Cling property to former pavement structure has no adverse effects, and is as shown in table 1, and this is most important to improving the road surface traffic safety.
Two, repair materials anti-freezing ice damage performance
1, the repair materials anti-freezing property of filming
Because repair materials is the asphaltic base product, and is better with the adhesion property of original asphalt behind the curing of coating, the open pores hole wall that can be connected with air to the test specimen surface is effectively implemented protection.Behind several times multigelation Circulation, the relatively poor phenomenons of adhesiving effect such as not having crackle, peeling of filming, anti-freezing property is better.
2, the repair materials freeze-thaw-wear hardness of filming
Utilize the freeze-thaw-wear hardness of the wet wheel abrasion of slurry seal experimental test repair materials.Test conditions is following: with behind the test specimen to be measured immersion 1h in-20 ℃ of freezing 6h down, melt 6h down in+20 ℃ then, this is for once circulating.Keep test specimen wetting of surfaces degree in the test, with the 1h that soaks under the test specimen room temperature, carry out wear test after the loop ends, study 5 times, 10 times, 20 times freeze-thaw cycle respectively the material adhesion Effect on Performance.
Get the bitumen mixture specimens of the prepared bituminous pavement anti-freezing ice injury repairing material of three spraying embodiment one, carry out 5 times, 10 times, 20 times freeze-thaw cycle respectively after, with the 1h that soaks under the test specimen room temperature, carry out wear test; Other gets three bitumen mixture specimens that do not spray repair materials, carry out 5 times, 10 times, 20 times freeze-thaw cycle respectively after, with the 1h that soaks under the test specimen room temperature, carry out wear test; Get the bitumen mixture specimens of three spraying emulsified bituminous materials again, carry out 5 times, 10 times, 20 times freeze-thaw cycle respectively after, with the 1h that soaks under the test specimen room temperature, carry out wear test.Test-results is as shown in Figure 1.
Fig. 1 is the freeze-thaw-wear hardness figure of differing materials; Wherein 1 representative sprays the freeze-thaw-wear hardness of the embodiment one prepared bituminous pavement anti-freezing ice bitumen mixture specimen of injury repairing material; 2 representatives do not spray the freeze-thaw-wear hardness of the pitch standard specimen of repair materials, the freeze-thaw-wear hardness of the bitumen mixture specimen of 3 representative spraying emulsified bituminous materials.
Singularity in view of bituminous pavement anti-freezing ice damage hypertonicity, the functional repair materials application conditions of high cohesive force; For giving full play to the effect of material; Prevent that bituminous pavement upper layer fine aggregate from peeling off and the generation of pitted skin phenomenon, repair materials should have freeze-thaw-wear hardness preferably.Visible by Fig. 1, be the basis with the wear test of the wet wheel of slurry seal, through after the freeze-thaw cycle process of different number of times, the test specimen of contrast spraying anti-freezing ice repair materials and common emulsified asphalt, the two is to the adhesion property significant difference of top layer fine aggregate.Through behind 20 freeze-thaw cycle, not having the rate of loss that its surface detail of basic test specimen of filming gathers materials is 894.lg/m
2, its wear(ing)value of test specimen of spraying repair materials is merely 161.8g/m
2, the test specimen wear(ing)value of spraying common emulsified asphalt material is 540g/m
2, the freeze-thaw-adhesion property of the bituminous pavement anti-freezing ice injury repairing material that visible the present invention is prepared is excellent.
Three, the water repelling property of repair materials:
Utilize the water repelling property of the wet wheel abrasion of slurry seal experimental test repair materials, test conditions is following: test specimen through behind the different soaking times, is carried out wear test, investigate soak under the room temperature 1h, 1d, 6d respectively after, the anti-water mill consumption ability of differing materials.
Get the bitumen mixture specimen of three spraying embodiment, one prepared bituminous pavement anti-freezing ice injury repairing material, at room temperature soak respectively behind 1h, 1d, the 6d, carry out wear test; Other gets three bitumen mixture specimens that do not spray repair materials, behind at room temperature soak respectively 1h, 1d, the 6d, carries out wear test; Get the bitumen mixture specimen of three spraying emulsified bitumens again, at room temperature soak respectively behind 1h, 1d, the 6d, carry out wear test.Test-results is as shown in Figure 2.
Fig. 2 is the anti-water mill consumption performance map of differing materials; Wherein the anti-water mill consumption of the 4 representative spraying embodiment one prepared bituminous pavement anti-freezing ice bitumen mixture specimens of injury repairing material can; 5 representatives do not spray the anti-water mill consumption ability of the pitch standard specimen of repair materials, the anti-water mill consumption ability of the bitumen mixture specimen of 6 representative spraying emulsified bitumens.
Visible by Fig. 2, be basis with the wear test of the wet wheel of slurry seal, through behind the different soaking times, contrast spraying repair materials and the test specimen that sprays emulsified bitumen, the two is to the adhesion property significant difference of top layer fine aggregate.Behind the immersion 6d, its wear(ing)value of test specimen of spraying repair materials is 283.9g/m
2, the test specimen wear(ing)value of spraying emulsified bitumen is 521g/m
2, and the rate of loss that its surface detail of basic test specimen that nothing is filmed is gathered materials has surpassed 1200g/m
2, the water repelling property of the bituminous pavement anti-freezing ice injury repairing material that visible the present invention is prepared is excellent.
Claims (9)
1. bituminous pavement anti-freezing ice injury repairing material is characterized in that bituminous pavement anti-freezing ice injury repairing material processed by 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene.
2. a kind of bituminous pavement anti-freezing ice injury repairing material according to claim 1 is characterized in that bituminous pavement anti-freezing ice injury repairing material processed by 20～30 parts road oil hard pitch, 40～70 parts coal-tar heavy oil and 40～50 parts viscosity reduction permeate agent by mass fraction.
3. a kind of bituminous pavement anti-freezing ice injury repairing material according to claim 1 is characterized in that said ester is an ETHYLE ACETATE, and the verivate of said benzene is a toluene.
4. the method for preparing the described a kind of bituminous pavement anti-freezing ice of claim 1 injury repairing material is characterized in that bituminous pavement anti-freezing ice injury repairing preparation methods carries out according to the following steps:
One, takes by weighing 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene;
Two, the road oil hard pitch grinding that takes by weighing in the step 1 is the asphalt powder of particle diameter≤0.3mm;
Three, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the viscosity reduction permeate agent that takes by weighing in the step 1, stirring obtains mixture;
Four, the asphalt powder that step 2 is obtained joins in the mixture that step 3 obtains, and stirs, and obtains bituminous pavement anti-freezing ice injury repairing material.
5. the method for a kind of bituminous pavement anti-freezing ice injury repairing material according to claim 4 is characterized in that in the step 3 that with the speed of 2000rpm, mechanical stirring 2～3min obtains mixture.
6. the method for a kind of bituminous pavement anti-freezing ice injury repairing material according to claim 4 is characterized in that in the step 4, and with the speed of 2000rpm, mechanical stirring 15～20min obtains bituminous pavement anti-freezing ice injury repairing material.
7. the method for preparing the described a kind of bituminous pavement anti-freezing ice of claim 1 injury repairing material is characterized in that bituminous pavement anti-freezing ice injury repairing preparation methods carries out according to the following steps:
One, takes by weighing 10～40 parts road oil hard pitch, 30～80 parts coal-tar heavy oil and 30～60 parts viscosity reduction permeate agent by mass fraction; Wherein the softening temperature of road oil hard pitch is greater than 80 ℃, and the viscosity reduction permeate agent is the one or more combination in the verivate of ester, benzene and benzene;
Two, the road oil hard pitch pulverizing that takes by weighing in the step 1 is the pitch particle of particle diameter 2.36～4.75cm;
Three, the pitch particle that step 2 is obtained joins in the viscosity reduction permeate agent, and under the condition of sealing, mechanical stirring 24～96h obtains bituminous solution;
Four, the coal-tar heavy oil that takes by weighing in the step 1 is joined in the bituminous solution that step 3 obtains, stirring obtains bituminous pavement anti-freezing ice injury repairing material.
8. the method for a kind of bituminous pavement anti-freezing ice injury repairing material according to claim 7 is characterized in that in the step 3 that with the speed of 1000rpm, mechanical stirring 24～96h obtains bituminous solution.
9. the method for a kind of bituminous pavement anti-freezing ice injury repairing material according to claim 7 is characterized in that in the step 4, and with the speed of 2000rpm, mechanical stirring 15～20min obtains bituminous pavement anti-freezing ice injury repairing material.
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| CN104761184A (en) * | 2014-03-25 | 2015-07-08 | 广西大学 | Special permeable and adhesive layer composite material for semi-rigid base |
| CN110878173A (en) * | 2019-09-29 | 2020-03-13 | 长安大学 | Asphalt aging repairing agent and preparation and use methods thereof |
| CN111019526A (en) * | 2019-12-26 | 2020-04-17 | 江苏中路交通科学技术有限公司 | Environment-friendly permeable asphalt pavement regeneration curing agent and preparation method and application thereof |
| CN114481746A (en) * | 2022-03-22 | 2022-05-13 | 深圳市格瑞实业发展有限公司 | Anti-freezing drainage asphalt road |
| CN116041012A (en) * | 2022-12-30 | 2023-05-02 | 保利长大工程有限公司 | Quick repairing material for cement and asphalt pavement and preparation method thereof |
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| CN102701787B (en) | 2014-06-18 |
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