CN107151108B - A kind of ultra-thin asphalt mixes and preparation method thereof, application - Google Patents
A kind of ultra-thin asphalt mixes and preparation method thereof, application Download PDFInfo
- Publication number
- CN107151108B CN107151108B CN201610121647.9A CN201610121647A CN107151108B CN 107151108 B CN107151108 B CN 107151108B CN 201610121647 A CN201610121647 A CN 201610121647A CN 107151108 B CN107151108 B CN 107151108B
- Authority
- CN
- China
- Prior art keywords
- ultra
- sieve pore
- asphalt mixes
- thin
- mix
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/36—Bituminous materials, e.g. tar, pitch
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
Abstract
The invention discloses a kind of ultra-thin asphalt mixes and preparation method thereof, application.Its raw material includes following components: 80~90%, miberal powder 2~7% that gathers materials, Indonesia's BUTON rock asphalt 2.5~5%, matrix pitch 4~6% and polyester fiber 1~2%；Above-mentioned percentage is mass percent of each component relative to raw material total amount；The gradation types to gather materials are modified ECA-10.Ultra-thin asphalt mixes excellent combination property produced by the present invention, the service performances such as rutting resistance, mechanical property, abrasion performance, water-fast damage performance, durability increase substantially, and have excellent cryogenic property, itself cohesive strength is strong, substantially impermeable, sexual valence is relatively high.The preparation process of ultra-thin asphalt mixes of the present invention is simple, cheap.The thickness of thus obtained ultrathin asphalt pavement can be 2~2.5cm, and cost only needs 60~70 yuan/m2, cost performance is high, has extensive market application value.
Description
Technical field
The present invention relates to a kind of ultra-thin asphalt mixes and preparation method thereof, application.
Background technique
As China's road engineering gradually turns to maintenance by newly-built, the demand to Asphalt Pavement Maintenance Technology gradually increases.
Using bituminous pavement urban road build up investment after soon, surface layer especially superficial layer does not usually occur structure in base
Property damage in the case where, due to the internal factors such as the external factor such as car load, temperature, precipitation and material property, mass defect
Under joint effect, it will usually surface aging occur, the different journeys such as fine aggregate scatters and disappears, coarse aggregate peels off, pit-hole and slight crack
The early disease of degree.These diseases not only influence road passage capability, more importantly substantially reducing the use longevity of road
Life.For reducing the influence of road pavement absolute altitude and saving the principle of project cost, generallys use thin layer and overlay class technique to pitch
Surface layer carries out overlay processing, to restore the apparent function of road, improve ride quality and extend the service life on road surface.
Therefore ultrathin overlay technology is come into being, which has good surface texture depth and apparent function, can
The daily road maintenance of highway and Trunk highway big suitable for the volume of traffic, heavy-duty vehicle is more, speed is fast, major technique
Advantage is that speed of application is fast, the open to traffic time is short, therefore has performance outstanding and application advantage.Currently, in the prior art
The ultra-thin asphalt mixes of SBS modified pitch are often applied to ultrathin overlay field, but there are higher cost (especially raw materials
SBS resin), ultra-thin pitch mixing road surface obtained is up to 100~110 yuan/m2, and ultra-thin pitch mixing road surface preparation process
In, since SBS modified asphalt mixture viscosity is higher, it is easy sedimentation in the case of high additive, needs whisking machines to be stirred continuously, makes
At the waste of the energy.
Natural rock asphalt (island Bu Dun rock asphalt) is to bury the petroleum in crust depth by tectonic diastrophism and pressure
Variation, pours into earth's surface, the bitumen formed under special natural environment by deposition for many years and surface mineral.By exploitation
After excavation, it is broken for graininess.Wherein, for bitumen stable content 10~40%, remaining is natural mineral matter.The prior art
In, natural rock asphalt is often used as anti-rut agent, usually should be in the middle surface layer of bituminous pavement.Although also having day at present
The case where right rock asphalt is applied to bituminous pavement superficial layer, but the fatigability of the asphalt due to natural rock asphalt composition
It can be difficult to up to standard, therefore surface layer thickness obtained is necessary for 4~5cm.There is not yet in the prior art by natural rock asphalt application
In the situation that ultra-thin wearing layer makes its thickness be less than 4cm.
Summary of the invention
It is only that SBS changes the technical problem to be solved by the present invention is to overcome ultra-thin asphalt mixes in the prior art
Property, higher cost, viscosity is higher, and sedimentation is easy in high additive, and it needs blender to be stirred continuously, causes energy waste,
And natural rock asphalt composition asphalt be applied to bituminous pavement superficial layer when, fatigue behaviour be difficult to it is up to standard, it is obtained
Surface layer thickness must be up to the defect of 4~5cm, provide a kind of ultra-thin asphalt mixes and preparation method thereof, application.This hair
In bright ultra-thin asphalt mixes obtained, mutually acts synergistically between various raw materials, make its excellent combination property, Rut resistance energy
The service performances such as power, mechanical property, abrasion performance, water-fast damage performance, durability increase substantially；With excellent cryogenic property,
The ultra-thin asphalt mixes after thin layer overlays are extended using the time, sexual valence is relatively high；Itself cohesive strength is strong, has preferably anti-
It disperses performance；Construction depth, infiltration coefficient technical indicator significantly improve, substantially impermeable, have more excellent apparent use
Performance.Ultra-thin asphalt mixes of the invention may be directly applied to the bituminous pavement of highway, Trunk highway, preventive maintenance
Construction operation has extensive use value and development prospect.The preparation process of ultra-thin asphalt mixes of the present invention is simple, it is only necessary to
Increase rock asphalt conveying device in production ultra-thin asphalt mixes mixing station, does not need to increase independent storage tank and stirring dress
It sets, it is cheap,.And the thickness of thus obtained ultrathin asphalt pavement can be 2~2.5cm, cost only need 60~70 yuan/
m2, cost performance is high, has extensive market application value.
The present invention solves above-mentioned technical problem by the following technical programs.
The present invention provides a kind of ultra-thin asphalt mixes, raw material includes following components: gather materials 80~90%, miberal powder 2
~7%, Indonesia's BUTON rock asphalt 2.5~5%, matrix pitch 4~6% and polyester fiber 1~2%；Above-mentioned percentage is each
Mass percent of the component relative to raw material total amount；
The gradation types to gather materials are modified ECA-10, the specific gradation composition of the modified ECA-10 such as table 1
It is described:
Table 1
Wherein, the percentage is the mass percent by sieve pore.
In the present invention, it is described gather materials be it is in the art conventional, generally comprise coarse aggregate and fine aggregate.The coarse aggregate refers to
Nominal particle diameter is the rubble that 2.36mm or more and maximum particle diameter are less than 9.5mm.The fine aggregate refers to that nominal particle diameter is 2.36mm
Aggregate chips or sand below.
In the present invention, the dosage gathered materials preferably 83.9~85%, above-mentioned percentage is that each component is total relative to raw material
The mass percent of amount.
In the present invention, the miberal powder is this field routine miberal powder, and preferable particle size is less than the mineral powders of 0.075mm, more
It is less than the limestone powder of 0.075mm for partial size goodly.The limestone powder is ground by grinding production equipment, super
Filling effect is played in thin asphalt.
In the present invention, the dosage of the miberal powder preferably 5~6%, above-mentioned percentage is each component relative to raw material total amount
Mass percent.
In the present invention, in Indonesia's BUTON rock asphalt, general bitumen content is 10~40%, and percentage is relative to institute
State the mass percent of Indonesia's BUTON rock asphalt.
In the present invention, the dosage preferably 2.5~3% of Indonesia's BUTON rock asphalt, above-mentioned percentage is that each component is opposite
In the mass percent of raw material total amount.
In the present invention, the matrix pitch is the matrix pitch of this field routine, preferably 70# matrix pitch.According to ability
Domain common sense, the 70# matrix pitch belong to asphalt.As long as meeting national regulation " standard specification for construction and acceptance of highway asphalt pavement "
The 70# matrix pitch of 70# matrix pitch technical requirement can be applied to the present invention.70# matrix pitch of the invention is peaceful
The Zhenghai Bo Shi Jiang Ji Chemical Co., Ltd. commercial product.
In the present invention, the dosage of the matrix pitch preferably 5.1~5.5%, above-mentioned percentage is each component relative to original
Expect the mass percent of total amount.
In the present invention, the polyester fiber is that this field is conventional, preferably satisfies following indexs: tensile strength >=550MPa,
Elongation at break 30 ± 9%, fusing point >=230 DEG C, 20 ± 4 μm of diameter, 1.36~1.40g/cm of specific gravity3.The polyester fiber
Color is that this field is conventional, generally white.
In the present invention, the dosage of the polyester fiber preferably 2%, above-mentioned percentage is each component relative to raw material total amount
Mass percent.
In the present invention, the modified ECA-10, which refers to, adds 7.2mm sieve pore between 4.75 and 9.5 sieve pores, preferably
Whole particle diameter distribution of gathering materials is controlled, makes to be more likely to form well using the modified ultra-thin asphalt mixes of rock asphalt of gradation preparation
High-temperature stability, low-temperature flexibility performance.
The present invention also provides a kind of preparation methods of ultra-thin asphalt mixes comprising following step:
(1) by it is described gather materials, the mix of the polyester fiber and the rock asphalt, obtain mixture A；
(2) by mixture A and the matrix pitch mix, mixture B is obtained；
(3) by mixture B and the miberal powder mix, the ultra-thin asphalt mixes are obtained.
In step (1), according to common sense in the field, it is described gather materials carry out mix before, generally preheated.After the preheating
Preferably 170~190 DEG C of aggregate temperature, more preferable 180~190 DEG C, most preferably 180 DEG C.
In step (1), the time of the mix preferably 40~50 seconds, more preferable 45~50 seconds.
In step (1), preferably 175~185 DEG C of the temperature of the mix, more preferable 180 DEG C.
In step (2), preferably 140~160 DEG C of the temperature of the matrix pitch, more preferable 150~160 DEG C.
In step (2), the time of the mix preferably 13~18 seconds, more preferable 13~15 seconds.
In step (2), preferably 175~185 DEG C of the temperature of the mix, more preferable 180 DEG C.
In step (3), the time of the mix preferably 5~8 seconds, more preferable 5 seconds.
The present invention also provides a kind of ultra-thin asphalt mixes answering in maintenance of surface ultrathin overlay technology field
With.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can any combination to get each preferable reality of the present invention
Example.
The raw materials used in the present invention is commercially available.
The positive effect of the present invention is that:
It in ultra-thin asphalt mixes produced by the present invention, mutually acts synergistically between various raw materials, keeps its comprehensive performance excellent
Different, the service performances such as rutting resistance, mechanical property, abrasion performance, water-fast damage performance, durability increase substantially；With excellent
Cryogenic property, extend the ultra-thin asphalt mixes after thin layer overlays using the time, sexual valence is relatively high；Itself cohesive strength is strong,
Has preferably anti-performance of dispersing；Construction depth, infiltration coefficient technical indicator significantly improve, substantially impermeable, have more excellent
Good apparent service performance.Ultra-thin asphalt mixes of the invention may be directly applied to the asphalt road of highway, Trunk highway
Face, preventive maintenance construction operation have extensive use value and development prospect.
The preparation process of ultra-thin asphalt mixes of the present invention is simple, it is only necessary to increase in production ultra-thin asphalt mixes mixing station
Rock asphalt conveying device does not need to increase independent storage tank and agitating device, cheap,.And it is thus obtained ultra-thin
The thickness of bituminous pavement can be 2~2.5cm, and cost only needs 60~70 yuan/m2, cost performance is high, has extensive market using valence
Value.
Specific embodiment
The present invention is further illustrated below by the mode of embodiment, but does not therefore limit the present invention to the reality
It applies among a range.In the following examples, the experimental methods for specific conditions are not specified, according to conventional methods and conditions, or according to quotient
The selection of product specification.
In following embodiment and comparative examples, gather materials, miberal powder, pitch, polyester fiber are all satisfied Ministry of Communications issuing standard JTG
F40-2004 " highway engineering Asphalt Pavement Construction Technique specification " associated specifications.Polyester fiber meets following indexs: tension
Intensity >=550MPa, elongation at break 30 ± 9%, fusing point >=230 DEG C, 20 ± 4 μm of diameter, 1.36~1.40g/cm of specific gravity3.Collection
Material includes coarse aggregate and fine aggregate, and coarse aggregate refers to that nominal particle diameter is the rubble that 2.36mm or more and maximum particle diameter are less than 9.5mm,
Fine aggregate refers to that nominal particle diameter is 2.36mm aggregate chips below or sand.Miberal powder is the limestone powder that partial size is less than 0.075mm.
If percentage described in following embodiments and comparative example refers both to each component relative to ultra-thin pitch without specified otherwise
Mixture raw material total amount mass percent.The matrix pitch of whole embodiments and comparative example is that Ningbo City, river, Zhenghai Jilin Chemical work has
Limit the 70# matrix pitch of companies market；The bitumen content of Indonesia's BUTON rock asphalt of whole embodiments and comparative example is 25%.
Embodiment 1
The raw material components of the present embodiment are as described in Table 2, and following percentages are quality of each component relative to raw material total amount
Percentage.
Table 2
The present embodiment ultra-thin asphalt mixes gradation types are modified ECA-10, and specific gradation composition is shown in Table 3.
Table 3
The present embodiment ultra-thin asphalt mixes preparation method the following steps are included:
(1) 180 DEG C gather materials, polyester fiber and Indonesia's BUTON rock asphalt are added mix pot, the mix 45s at 180 DEG C,
Obtain mixture A；
(2) by mixture A and 150 DEG C of 70# matrix pitch at 180 DEG C, mix 15s obtains mixture B；
(3) by mixture B and miberal powder mix 5s, ultra-thin asphalt mixes are obtained.
Embodiment 2
The raw material components of the present embodiment are as described in Table 2.
The present embodiment ultra-thin asphalt mixes gradation types are modified ECA-10, and specific gradation composition is shown in Table 3.
The present embodiment ultra-thin asphalt mixes preparation method the following steps are included:
(1) 190 DEG C gather materials, polyester fiber and Indonesia's BUTON rock asphalt are added mix pot, the mix 50s at 175 DEG C,
Obtain mixture A；
(2) by mixture A and 160 DEG C of 70# matrix pitch at 175 DEG C, mix 13s obtains mixture B；
(3) by mixture B and miberal powder mix 8s, ultra-thin asphalt mixes are obtained.
Comparative example 1~2
The raw material components of comparative example 1~2 are as described in Table 2.
1~2 ultra-thin asphalt mixes gradation types of comparative example are modified ECA-10, and specific gradation composition is shown in Table 3.
The preparation method is the same as that of Example 1 for 1~2 ultra-thin asphalt mixes of comparative example.
Effect example 1
According to Ministry of Communications " highway engineering pitch and Asphalt Mixture Experiment regulation " (JTG E20-2011), to embodiment,
Comparative example is tested for the property, and test result is shown in Table 4.
Table 4
By table 4 as it can be seen that the Marshall stability that ultra-thin asphalt mixes produced by the present invention can bear peak load refers to
Mark increases substantially, it was demonstrated that ultra-thin asphalt mixes of the invention have more excellent mechanical property technical indicator.
Ultra-thin asphalt mixes produced by the present invention, in the track dynamic stability skill of reflection mixture high temperature anti-rut behavior
Art index increases substantially, it was demonstrated that ultra-thin asphalt mixes of the invention have more excellent anti-rut behavior.
Ultra-thin asphalt mixes produced by the present invention, residual Marshall stability index, jelly in reflection water resistant damage performance
Melt splitting retained strength to increase substantially than index, it was demonstrated that ultra-thin asphalt mixes of the invention have more excellent water resistant damage property
Energy.
Ultra-thin asphalt mixes produced by the present invention, in the Superpave mix-design of the anti-performance of dispersing of reflection ultra-thin asphalt mixes
Test mixture loss late is greatly lowered, it was demonstrated that ultra-thin asphalt mixes of the invention have more excellent anti-performance of dispersing.
Ultra-thin asphalt mixes produced by the present invention, construction depth, infiltration coefficient skill in the reflection apparent function of mixture
Art index significantly improves, substantially impermeable, it was demonstrated that ultra-thin asphalt mixes of the invention have more excellent apparent usability
Energy.
The thickness of the ultrathin asphalt pavement as made from the ultra-thin asphalt mixes of the embodiment of the present invention 1~2 can for 2~
2.5cm, cost only need 60~70 yuan/m2, cost performance is high, has extensive market application value.
Claims (11)
1. a kind of ultra-thin asphalt mixes, which is characterized in that its raw material includes following components: 80~90%, miberal powder 2 that gathers materials~
7%, Indonesia's BUTON rock asphalt 2.5~5%, matrix pitch 4~6% and polyester fiber 1~2%；Above-mentioned percentage is each group
Mass percent of the split-phase for raw material total amount；
The gradation types to gather materials are modified ECA-10, and the specific gradation composition of the modified ECA-10 is as described below:
13.2mm sieve pore be 100% by the sieve pore rate upper limit, lower limit 100%；9.5mm sieve pore is by the sieve pore rate upper limit
100%, lower limit 80%；7.2mm sieve pore be 68% by the sieve pore rate upper limit, lower limit 41%；4.75mm sieve pore passes through sieve pore
The rate upper limit is 41%, lower limit 23%；2.36mm sieve pore be 33% by the sieve pore rate upper limit, lower limit 14%；1.18mm sieve pore
It is 32% by the sieve pore rate upper limit, lower limit 16%；0.6mm sieve pore be 23% by the sieve pore rate upper limit, lower limit 11%；0.3mm
Sieve pore be 20% by the sieve pore rate upper limit, lower limit 7%；0.15mm sieve pore be 12% by the sieve pore rate upper limit, lower limit 6%；
0.075mm sieve pore be 8% by the sieve pore rate upper limit, lower limit 4%；
Wherein, the percentage to gather materials is the mass percent by sieve pore.
2. ultra-thin asphalt mixes as described in claim 1, which is characterized in that the dosage gathered materials is 83.9~85%.
3. ultra-thin asphalt mixes as described in claim 1, which is characterized in that the dosage of the miberal powder is 5~6%；With/
Or, the miberal powder is the mineral powders that partial size is less than 0.075mm.
4. ultra-thin asphalt mixes as claimed in claim 3, which is characterized in that the miberal powder is partial size less than 0.075mm's
Limestone powder.
5. ultra-thin asphalt mixes as described in claim 1, which is characterized in that the dosage of Indonesia's BUTON rock asphalt is
2.5~3%.
6. ultra-thin asphalt mixes as described in claim 1, which is characterized in that the dosage of the matrix pitch be 5.1~
5.5%；And/or the matrix pitch is 70# matrix pitch.
7. ultra-thin asphalt mixes as described in claim 1, which is characterized in that the polyester fiber meets following indexs: anti-
Tensile strength >=550MPa, elongation at break 30 ± 9%, fusing point >=230 DEG C, 20 ± 4 μm of diameter, 1.36~1.40g/cm of specific gravity3。
8. a kind of preparation method of ultra-thin asphalt mixes as described in claim 1, which is characterized in that it includes following steps
It is rapid:
(1) by it is described gather materials, the polyester fiber and Indonesia's BUTON rock asphalt mix, obtain mixture A；
(2) by mixture A and the matrix pitch mix, mixture B is obtained；
(3) by mixture B and the miberal powder mix, the ultra-thin asphalt mixes are obtained.
9. preparation method as claimed in claim 8, which is characterized in that in step (1), it is described gather materials carry out mix before, carry out
Preheating, the aggregate temperature after the preheating are 170~190 DEG C；And/or in step (1), the time of the mix is 40~50
Second；And/or in step (1), the temperature of the mix is 175~185 DEG C.
10. preparation method as claimed in claim 8, which is characterized in that in step (2), the temperature of the matrix pitch is 140
~160 DEG C；And/or in step (2), the time of the mix is 13~18 seconds；And/or in step (2), the temperature of the mix
Degree is 175~185 DEG C；And/or in step (3), the time of the mix is 5~8 seconds.
11. a kind of ultra-thin asphalt mixes as described in any one of claims 1 to 7 are in maintenance of surface ultrathin overlay technology field
In application.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610121647.9A CN107151108B (en) | 2016-03-04 | 2016-03-04 | A kind of ultra-thin asphalt mixes and preparation method thereof, application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610121647.9A CN107151108B (en) | 2016-03-04 | 2016-03-04 | A kind of ultra-thin asphalt mixes and preparation method thereof, application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107151108A CN107151108A (en) | 2017-09-12 |
| CN107151108B true CN107151108B (en) | 2019-09-27 |
Family
ID=59791674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610121647.9A Active CN107151108B (en) | 2016-03-04 | 2016-03-04 | A kind of ultra-thin asphalt mixes and preparation method thereof, application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107151108B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892510A (en) * | 2017-11-28 | 2018-04-10 | 广州大学 | A kind of thin overlay asphalt |
| CN113912329B (en) * | 2021-10-09 | 2023-03-14 | 招商局重庆交通科研设计院有限公司 | Compact ultrathin overlay asphalt mixture and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103204654B (en) * | 2013-04-28 | 2014-12-10 | 长安大学 | Micro-surfacing mixing material doped with rock asphalt and preparation method thereof |
| CN104099844A (en) * | 2014-08-13 | 2014-10-15 | 山东金茂建设集团有限公司 | Construction technology for environment-friendly and modified HMA surface layer |
-
2016
- 2016-03-04 CN CN201610121647.9A patent/CN107151108B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107151108A (en) | 2017-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106431125B (en) | A kind of cold mixing type chromatic bitumen mixture and preparation method | |
| CN103408956B (en) | A kind of high performance modified bitumen and preparation method thereof | |
| CN100572444C (en) | A kind of colored modified building asphalt and preparation method thereof | |
| CN101830667B (en) | Flexible micro-surfacing sealing slurry mixture and preparation method thereof | |
| CN104058638B (en) | A kind of asphalt | |
| CN110593046B (en) | High-strength durable steel slag permeable asphalt pavement structure | |
| CN107117871A (en) | The chopped asphalts of basalt fibre OGFC 13 of one kind incorporation | |
| CN103073232A (en) | Micro-surfacing mixture | |
| CN109486421A (en) | A kind of ultra-thin sealing material of environment-friendly type antiskid and preparation method thereof | |
| CN103204654B (en) | Micro-surfacing mixing material doped with rock asphalt and preparation method thereof | |
| CN109610259A (en) | A kind of road ultra-thin wearing layer and preparation method thereof | |
| CN108483999B (en) | Colored permeable pavement asphalt mixture and preparation and application thereof | |
| CN104072024A (en) | Preparation process of asphalt mixture | |
| CN107151108B (en) | A kind of ultra-thin asphalt mixes and preparation method thereof, application | |
| CN107188460A (en) | A kind of preparation method for mixing the asphalts of basalt fibre OGFC 13 that are chopped | |
| CN107473635A (en) | Bituminous concrete and its preparation technology | |
| CN103570279A (en) | Material for rapidly and effectively repairing pits in bituminous pavement and preparation method of material | |
| CN110128070B (en) | Graded broken stone pouring type semi-flexible composite pavement mixture and pavement construction method | |
| KR20010023054A (en) | Bitumen or asphalt for producing a road topping, road topping and method for the production of bitumen or asphalt | |
| CN113582588A (en) | High-skid-resistance asphalt mixture and preparation method thereof | |
| CN114075053B (en) | Ultrathin overlay mixture for preventive maintenance of asphalt pavement, preparation method and additive | |
| CN110184824A (en) | Composite modification material, preparation method and asphalt for bituminous concrete | |
| CN105040546A (en) | Super adhering wearing layer roadway maintenance method | |
| CN107759139A (en) | Highly anti-fatigue cracking resistance water-permeating pitch mixed material and preparation method thereof | |
| CN109554161A (en) | A kind of high viscoplasticity asphalt roads sticking layer oil and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181126 Address after: 361000 Fujian Xiamen torch high tech Zone (Xiangan) Industrial Zone No. 4, 11 Applicant after: Xiamen Ward highway asphalt Technology Co., Ltd. Address before: 201607 1188 Xinyan Road, Sigang Town, Songjiang District, Shanghai Applicant before: Shanghai Longfu Material Technology Co., Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |