CN106118100B - A kind of rubber asphalt stabilizer and the method using its stable modification rubber asphalt - Google Patents
A kind of rubber asphalt stabilizer and the method using its stable modification rubber asphalt Download PDFInfo
- Publication number
- CN106118100B CN106118100B CN201610613675.2A CN201610613675A CN106118100B CN 106118100 B CN106118100 B CN 106118100B CN 201610613675 A CN201610613675 A CN 201610613675A CN 106118100 B CN106118100 B CN 106118100B
- Authority
- CN
- China
- Prior art keywords
- rubber
- rubber asphalt
- stabilizer
- asphalt
- quality
- 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
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/15—Heterocyclic compounds having oxygen in the ring
- C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
- C08K5/1545—Six-membered rings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of rubber asphalt stabilizer and using the method for its stable modification rubber asphalt, which is made of with stabilizer glucose, mannose, rhamnose and the glucuronic acid centainly matched.Method using its stable modification rubber asphalt is as follows: 1) pitch being heated to 135 DEG C, rubber powder is added after pitch is in flowable state, the quality of rubber powder is the 10%-22% of asphalt quality, is warming up to 180 DEG C, shearing simultaneously, which is dispersed to, to be sufficiently mixed uniformly, and rubber asphalt is obtained；2) after the resulting rubber asphalt of step 1) being cooled to 160 DEG C, rubber asphalt stabilizer is added under conditions of stirring at low speed, stirring at low speed revolving speed when stirring is 500-800 revs/min, and rubber asphalt is the 0.5%-1.5% of asphalt quality with the quality that stabilizer is added, and is stirred evenly.The all biological materials of the component of the stabilizer, it is nontoxic, harmless, pollution-free, belong to environmentally friendly stabilizer.This method is very simple and easy, easy to operate.
Description
Technical field
The present invention relates to rubber asphalt and rubber asphalt concrete technical fields, and in particular to a kind of rubber asphalt stabilization
Agent and the method for utilizing its stable modification rubber asphalt.
Background technique
Only domestic waste tire storage just has more than one hundred million at present, and is being increased with about 65,000,000 every year speedups；And it is complete
About 2,000,000,000, the tire that ball is scrapped every year, stock are with regard to more.The long-term air storage of a large amount of waste tires will certainly
Cause environmental pollution, the wasting of resources.China's pavement asphalt mostly uses paraffinic base crude oil to refine greatly, the pitch of refining to temperature more
Sensitivity will appear numerous diseases after building up, if bellding feels like jelly, the early damages such as cold cracking.
Fast development and vehicle heavy loading along with highway construction, demand of the people to polymer modified asphalt increasingly increase
Long, rubber modified asphalt has excellent high temperature Rut resistance, anti-fatigue performance and excellent elastic recovery capability, can operate with height
The high grade pavements such as the upper surface of fast highway layer, heavy traffic road surface and the more section of overloaded vehicle.The rubber prepared with waste tire
Rubber powder is modified pitch, on the one hand can improve the pavement performance of pitch, on the other hand solve waste tire again and cause
Problem of environmental pollution, be to kill two birds with one stone.But there is serious lamination in rubber asphalt, influence rubber in process of production
The storage stability of glue pitch, and higher rubber powder volume can be such that asphalt viscosity increases, and can bring difficulty to construction, this
It is a technical bottleneck on rubber road.
The compatibility for how improving rubber asphalt, improving its storage stability problem is the task of top priority, and research rubber
The hot spot of pitch and forward position.Studies in China focuses primarily upon the size distribution, dosage, type, the activator of rubber powder, matrix of rubber powder
Pitch is to the role and influence of modified pitch, and the consistency problem of storage stability and rubber asphalt for rubber asphalt is ground
That studies carefully is less.There are no better performances, the lower rubber asphalt stabilizer of price currently on the market, therefore develop a kind of high property
Energy, high performance-price ratio, high usage rubber asphalt stabilizer have important social effect and economic value.
Summary of the invention
To solve the above-mentioned problems of the prior art, the present invention provides a kind of rubber asphalt stabilizer and it is utilized
The method of stable modification rubber asphalt, all biological materials of the component of the stabilizer are nontoxic, harmless, pollution-free, belong to ring
Border friendly stabilizer.
This method is very simple and easy, easy to operate.
Realize technical solution used by above-mentioned purpose of the present invention are as follows:
A kind of rubber asphalt stabilizer, it is characterised in that be grouped as by the group of following mass fraction:
A kind of rubber asphalt method of stabilizer stable modification rubber asphalt, includes the following steps:
1) pitch is heated to 135 DEG C, rubber powder is added after pitch is in flowable state, the quality of rubber powder is asphalt quality
10%-22%, be warming up to 180 DEG C, while shearing is dispersed to and is sufficiently mixed uniformly, obtains rubber asphalt；
2) after the resulting rubber asphalt of step 1) being cooled to 160 DEG C, rubber asphalt is added under conditions of stirring at low speed
With stabilizer, stirring at low speed revolving speed when stirring is 500-800 revs/min, and rubber asphalt is pitch with the quality that stabilizer is added
The 0.5%-1.5% of quality obtains the rubber modified bitumen of the stabilizer stable modification after mixing evenly.
Preferably, in step 1), 2000-5000 revs/min of shear rate, shear time is 1-2 hours.
Preferably, in step 2), the time stirred at low speed is 1-2 hours.
The mechanism of action of the stabilizer is as follows:
Effect of the stabilizer in rubber modified bitumen not only has physics thickening power, also has space steric effect,
That is: there is physics thickening effect with a large amount of hydrophilic-OH molecular links due to stabilizer；Meanwhile the stabilizer is easily and pitch
Component is mutually harassed and disturbed in conjunction with macromolecular chain is formed, and is generated space steric effect, can be prevented the sedimentation of rubber grain, make rubber grain
Stable suspersion is in pitch.The effect in the present invention of stabilizer is to improve isolation performance.
Compared with prior art, the advantages and beneficial effects of the present invention are:
1) all biological materials of the component of stabilizer of the invention, compared with existing stabilizer, nontoxic, nothing
It is harmful, pollution-free, belong to environmentally friendly stabilizer.Importantly, rubber asphalt is after stabilizer stable modification of the invention,
Its is with good stability.Experiment shows: the softening of the upper and lower layer rubber modified bitumen of the isolation test pipe of rubber modified bitumen
Point difference is no more than 2 DEG C, and 48h is heated at 163 DEG C, segregation phenomenon does not occur, is still in stable uniform state.
2) method of stable modification pitch of the invention is simple and easy, easy to operate, and required equipment is simply common, is not required to
Excessive equipment funds are put into, it is therefore, low in cost needed for stable modification, it is suitble to industrialized production.
3) stabilizing agent dosage needed for the method for stable modification of the present invention is few, and the effect of stable modification is good, very economical
Rationally.
Detailed description of the invention
Fig. 1 is the complex modulus of the upper and lower layer rubber modified asphalt in rubber modified asphalt (being not added with stabilizer) with temperature
The variation diagram of degree
Fig. 2 is the complex modulus of the upper and lower layer rubber modified bitumen in the resulting rubber modified bitumen of embodiment 1 with temperature
Variation diagram.
Fig. 3 is the complex modulus of the upper and lower layer rubber modified bitumen in the resulting rubber modified bitumen of embodiment 2 with temperature
Variation diagram.
Fig. 4 is the complex modulus of the upper and lower layer rubber modified bitumen in the resulting rubber modified bitumen of embodiment 3 with temperature
Variation diagram.
Fig. 5 is the plural number of the upper and lower layer rubber modified bitumen in the resulting modified hydrotalcite rubber modified bitumen of comparative example 1
Modulus variation with temperature figure.
Fig. 6 is the complex modulus of the upper and lower layer rubber modified bitumen in the resulting rubber modified bitumen of comparative example 1 with temperature
Variation diagram.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.
Isolate the judgment criteria of performance superiority and inferiority: the softening point difference of the upper and lower layer rubber modified bitumen of isolation test pipe does not surpass
2 DEG C are crossed, and heats 48h at 163 DEG C, segregation phenomenon does not occur, is still in stable uniform state, then isolating performance is
It is excellent；Otherwise isolation performance is bad.The wherein softening point difference of the upper and lower layer rubber modified bitumen of rubber modified asphalt isolation test pipe
6 DEG C, and 48h is heated at 163 DEG C, there is apparent segregation phenomenon, rheologic behavio(u)r difference is larger, as shown in Figure 1.
Note: stabilizer performance test used in rubber modified bitumen of the present invention is referring to " highway engineering pitch and pitch
Test mixture regulation " T0661-2011 polymer modified asphalt isolation test in (JTG E20-2011).
Embodiment 1
A kind of rubber asphalt stabilizer, is grouped as by the group of following mass fraction:
Glucose, mannose, rhamnose and glucuronic acid are uniformly mixed to get to the rubber asphalt stabilizer.
Using the above-mentioned rubber asphalt method of stabilizer stable modification rubber asphalt, the steps include:
1) pitch is heated to 135 DEG C, rubber powder is added after pitch is in flowable state, the quality of rubber powder is asphalt quality
20%, be warming up to 180 DEG C, while with high-speed shearing colloid mill high speed shear material, 5000 revs/min of shear rate, when shearing
Between be 1 hour, obtain rubber asphalt；
2) the resulting rubber asphalt of step 1) is cooled to after 160 DEG C and is added in low-speed agitator, what is stirred at low speed
Under the conditions of be added rubber asphalt stabilizer, the revolving speed stirred at low speed be 800 revs/min, mixing time be 1.5 hours, rubber drip
Blueness 0.5% that the quality that stabilizer is added is asphalt quality obtains the modification rubber of the stabilizer stable modification after mixing evenly
Glue pitch.
After the stabilizer stable modification rubber asphalt of the present embodiment, the isolation situation of rubber asphalt is greatly improved.This implementation
The softening point of the upper and lower layer rubber modified bitumen of isolation test pipe of the resulting rubber modified bitumen of example is differed no more than 2 DEG C, and
48h is heated at 163 DEG C, segregation phenomenon does not occur, is still in stable uniform state.It is modified to the upper and lower layer of isolation test pipe
Rubber asphalt does temperature scanning, as a result as shown in Fig. 2, from figure 2 it can be seen that the upper and lower layer modified rubber drip of isolation test pipe
Green rheologic behavio(u)r has almost no change, it is indicated above that the stablizing effect of the rubber asphalt stabilizer of the present embodiment is good.
Embodiment 2
A kind of rubber asphalt stabilizer, is grouped as by the group of following mass fraction:
Glucose, mannose, rhamnose and glucuronic acid are uniformly mixed to get to the rubber asphalt stabilizer.
Using the above-mentioned rubber asphalt method of stabilizer stable modification rubber asphalt, the steps include:
1) pitch is heated to 135 DEG C, rubber powder is added after pitch is in flowable state, the quality of rubber powder is asphalt quality
20%, be warming up to 180 DEG C, while with high-speed shearing colloid mill high speed shear material, 5000 revs/min of shear rate, when shearing
Between be 1 hour, obtain rubber asphalt；
2) the resulting rubber asphalt of step 1) is cooled to after 160 DEG C and is added in low-speed agitator, what is stirred at low speed
Under the conditions of be added rubber asphalt stabilizer, the revolving speed stirred at low speed be 800 revs/min, mixing time be 1.5 hours, rubber drip
Blueness 1.0% that the quality that stabilizer is added is asphalt quality obtains the modification rubber of the stabilizer stable modification after mixing evenly
Glue pitch.
After the stabilizer stable modification rubber asphalt of the present embodiment, the isolation situation of rubber asphalt is greatly improved.This implementation
The softening point of the upper and lower layer rubber modified bitumen of isolation test pipe of the resulting rubber modified bitumen of example is differed no more than 1.5 DEG C, and
48h is heated at 163 DEG C, segregation phenomenon does not occur, is still in stable uniform state.The upper and lower layer of isolation test pipe is changed
Property rubber asphalt does temperature scanning, as a result as shown in figure 3, from figure 3, it can be seen that the upper and lower layer modified rubber of isolation test pipe
Pitch rheologic behavio(u)r has almost no change, it is indicated above that the stablizing effect of the rubber asphalt stabilizer of the present embodiment is good.
Embodiment 3
A kind of rubber asphalt stabilizer, is grouped as by the group of following mass fraction:
Glucose, mannose, rhamnose and glucuronic acid are uniformly mixed to get to the rubber asphalt stabilizer.
Using the above-mentioned rubber asphalt method of stabilizer stable modification rubber asphalt, the steps include:
1) pitch is heated to 135 DEG C, rubber powder is added after pitch is in flowable state, the quality of rubber powder is asphalt quality
20%, be warming up to 180 DEG C, while with high-speed shearing colloid mill high speed shear material, 5000 revs/min of shear rate, when shearing
Between be 1 hour, obtain rubber asphalt；
2) the resulting rubber asphalt of step 1) is cooled to after 160 DEG C and is added in low-speed agitator, what is stirred at low speed
Under the conditions of be added rubber asphalt stabilizer, the revolving speed stirred at low speed be 800 revs/min, mixing time be 1.5 hours, rubber drip
Blueness 1.5% that the quality that stabilizer is added is asphalt quality obtains the modification rubber of the stabilizer stable modification after mixing evenly
Glue pitch.
After the stabilizer stable modification rubber asphalt of the present embodiment, the isolation situation of rubber asphalt is greatly improved.This implementation
The softening point of the upper and lower layer rubber modified bitumen of isolation test pipe of the resulting rubber modified bitumen of example is differed no more than 1 DEG C, and
48h is heated at 163 DEG C, segregation phenomenon does not occur, is still in stable uniform state.It is modified to the upper and lower layer of isolation test pipe
Rubber asphalt does temperature scanning, as a result as shown in figure 4, figure 4, it is seen that the upper and lower layer modified rubber drip of isolation test pipe
Green rheologic behavio(u)r has almost no change, it is indicated above that the stablizing effect of the rubber asphalt stabilizer of the present embodiment is good.
Comparative example 1
A kind of rubber asphalt stabilizer, is grouped as by the group of following mass fraction:
Glucose, mannose, rhamnose and glucuronic acid are uniformly mixed to get to the rubber asphalt stabilizer.
Using the above-mentioned rubber asphalt method of the hydrotalcite-modified rubber asphalt of stabilizer stable modification, the steps include:
1) pitch is heated to 135 DEG C, rubber powder is added after pitch is in flowable state and hydrotalcite, the quality of rubber powder are
The 20% of asphalt quality, the quality of hydrotalcite are the 3% of asphalt quality, are warming up to 180 DEG C, while high with high-speed shearing colloid mill
Speed shearing material, 5000 revs/min of shear rate, shear time is 1 hour, obtains hydrotalcite-modified rubber asphalt；
2) it is added in low-speed agitator after the resulting hydrotalcite-modified rubber asphalt of step 1) being cooled to 160 DEG C, low
Rubber asphalt stabilizer is added under conditions of speed stirring, the revolving speed stirred at low speed is 800 revs/min, and mixing time is 1.5 small
When, rubber asphalt 1.0% that the quality that stabilizer is added is asphalt quality obtains stabilizer stabilization and changes after mixing evenly
The hydrotalcite-modified rubber asphalt of property.
The softening point of the hydrotalcite-modified rubber asphalt of the upper and lower layer of isolation test pipe of hydrotalcite-modified pitch differs 4 DEG C,
48h is heated at 163 DEG C, part segregation phenomenon occurs.Temperature scanning is done to the upper and lower layer rubber modified bitumen of isolation test pipe, is tied
Fruit is as shown in figure 5, from figure 5 it can be seen that (30 DEG C -70 of the hydrotalcite-modified rubber asphalt low-temperature space of the upper and lower layer of isolation test pipe
DEG C) rheologic behavio(u)r has almost no change, high-temperature region (80 DEG C -120 DEG C) rheologic behavio(u)r is changed significantly.
When rubber asphalt stabilizer of the invention is added, the isolation situation of hydrotalcite-modified rubber asphalt is greatly improved.
The upper and lower layer modified hydrotalcite rubber modified bitumen of isolation test pipe of the resulting modified hydrotalcite rubber modified bitumen of this comparative example
Softening point difference be no more than 2 DEG C, and heat 48h at 163 DEG C, segregation phenomenon do not occur, be still in stable uniform shape
State.Temperature scanning is done to the upper and lower layer modified hydrotalcite rubber modified bitumen of isolation test pipe, as a result as shown in fig. 6, from Fig. 6
As can be seen that the upper and lower layer modified hydrotalcite rubber modified bitumen rheologic behavio(u)r (30-120 DEG C) of isolation test pipe almost without
Variation is better than the modified effect of hydrotalcite it is indicated above that the stable modification effect of rubber asphalt stabilizer of the invention is good
Fruit.
Claims (3)
1. a kind of utilize the rubber asphalt method of stabilizer stable modification rubber asphalt, it is characterised in that include the following steps:
1) pitch is heated to 135 DEG C, rubber powder is added after pitch is in flowable state, the quality of rubber powder is asphalt quality
10%-22% is warming up to 180 DEG C, while shearing is dispersed to and is sufficiently mixed uniformly, obtains rubber asphalt；
2) after the resulting rubber asphalt of step 1) being cooled to 160 DEG C, rubber asphalt is added under conditions of stirring at low speed with surely
Determine agent, stirring at low speed revolving speed when stirring is 500-800 revs/min, and rubber asphalt is asphalt quality with the quality that stabilizer is added
0.5%-1.5% obtain the rubber modified bitumen of stable modification after mixing evenly；
The rubber asphalt is grouped as with stabilizer by the group of following mass fraction:
Glucose 15%
Mannose 28%
Rhamnose 42%
Glucuronic acid 15%.
2. according to claim 1 using the rubber asphalt method of stabilizer stable modification rubber asphalt, feature exists
In: in step 1), 2000-5000 revs/min of shear rate, shear time is 1-2 hours.
3. according to claim 1 using the rubber asphalt method of stabilizer stable modification rubber asphalt, feature exists
In: in step 2, the time stirred at low speed is 1-2 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610613675.2A CN106118100B (en) | 2016-07-31 | 2016-07-31 | A kind of rubber asphalt stabilizer and the method using its stable modification rubber asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610613675.2A CN106118100B (en) | 2016-07-31 | 2016-07-31 | A kind of rubber asphalt stabilizer and the method using its stable modification rubber asphalt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106118100A CN106118100A (en) | 2016-11-16 |
| CN106118100B true CN106118100B (en) | 2019-02-05 |
Family
ID=57255275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610613675.2A Active CN106118100B (en) | 2016-07-31 | 2016-07-31 | A kind of rubber asphalt stabilizer and the method using its stable modification rubber asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106118100B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106633955B (en) * | 2016-11-30 | 2019-03-22 | 长安大学 | A kind of rubber asphalt stabilizer and preparation method thereof |
| CN107200979B (en) * | 2017-07-27 | 2019-07-26 | 长安大学 | A kind of method of modifying of rubber asphalt stabilizer and rubber asphalt |
| CN109796778A (en) * | 2019-01-21 | 2019-05-24 | 河南省交通基本建设质量检测监督站 | Modified Bitumen Pavement material and preparation method thereof |
| CN110387131A (en) * | 2019-07-22 | 2019-10-29 | 尧棋 | A kind of high storage stability rubber and plastic alloy asphalt modifier and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB248859A (en) * | 1924-12-16 | 1926-03-16 | George Samuel Hay | Improvements in or relating to bituminous emulsions |
| GB951002A (en) * | 1961-03-23 | 1964-03-04 | Firestone Tire & Rubber Co | Rubber-polyhydric alcohol dispersion and blend with bitumen agents |
| JPS51107325A (en) * | 1975-03-19 | 1976-09-22 | Asia Oil Co Ltd | ASUFUARUTOSOSEIBUTSU |
| JP2000004805A (en) * | 1998-06-19 | 2000-01-11 | Hakuto Co Ltd | Stabilizer for oil-in-water emulsion type defoaming agent |
| CN105385174A (en) * | 2015-10-27 | 2016-03-09 | 武汉理工大学 | Asphalt thickener and asphalt cement |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7935749B2 (en) * | 2008-04-17 | 2011-05-03 | Carlson David A | Production of warm-mix asphalt compositions utilizing a polyhydric alcohol |
-
2016
- 2016-07-31 CN CN201610613675.2A patent/CN106118100B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB248859A (en) * | 1924-12-16 | 1926-03-16 | George Samuel Hay | Improvements in or relating to bituminous emulsions |
| GB951002A (en) * | 1961-03-23 | 1964-03-04 | Firestone Tire & Rubber Co | Rubber-polyhydric alcohol dispersion and blend with bitumen agents |
| JPS51107325A (en) * | 1975-03-19 | 1976-09-22 | Asia Oil Co Ltd | ASUFUARUTOSOSEIBUTSU |
| JP2000004805A (en) * | 1998-06-19 | 2000-01-11 | Hakuto Co Ltd | Stabilizer for oil-in-water emulsion type defoaming agent |
| CN105385174A (en) * | 2015-10-27 | 2016-03-09 | 武汉理工大学 | Asphalt thickener and asphalt cement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106118100A (en) | 2016-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106118100B (en) | A kind of rubber asphalt stabilizer and the method using its stable modification rubber asphalt | |
| CN105542496B (en) | Uncured rubber-asphalt waterproof material and preparation method thereof | |
| CN101235172B (en) | Asphalt pavement rubber plastic composite anti-rut agent and preparation method thereof | |
| CN104194366B (en) | A kind of low-temperature type high-modulus asphalt modifying agent and preparation method thereof | |
| CN102766338B (en) | Wide temperature range modified asphalt for roads and preparation method thereof | |
| CN104830076B (en) | A kind of preparation method of scrap rubber cracking conversion modified pitch | |
| CN103756341A (en) | High-toughness waste rubber asphalt and preparation method thereof | |
| CN1396213A (en) | Polymer emulsified and re-cross-linked asphalt colloid mixture and its preparing process | |
| CN110951268B (en) | Modified asphalt composition with excellent high and low temperature performance and preparation method thereof | |
| CN103360774A (en) | Asphaltized rubber modified asphalt and preparation method thereof | |
| CN104592773A (en) | Warm-mixing SMA (styrene maleic anhydride)-modified asphalt concrete modified particle and preparation method thereof | |
| CN109385106A (en) | Low viscous high performance modified bitumen of one kind and preparation method thereof | |
| CN103408953A (en) | Bituminization rubber particle modifying agent and preparation method thereof | |
| CN106519718A (en) | High-modulus asphalt additive | |
| CN109534722A (en) | A kind of high-performance reclaimed bituminous pavement cold-repairing material and preparation method thereof | |
| CN106700572A (en) | Long-life POE-SBS composite modified asphalt and preparation method thereof | |
| CN105348832A (en) | High-viscosity anti-rutting performance modified asphalt and processing method | |
| CN105541181B (en) | A kind of rubber powder ground surface material and construction method | |
| CN110396300A (en) | A kind of nano-compound modified pitch and preparation method thereof | |
| CN104845391B (en) | A kind of preparation method and its usage of high durable bituminous cements | |
| CN106336673A (en) | Biological oil compounded nanometer diatomite modified asphalt and preparation method thereof | |
| CN102863805A (en) | Modified Qingchuan rock asphalt and preparation method thereof | |
| CN101629021B (en) | High-quality pavement petroleum asphalt material and preparation method thereof | |
| CN102532925A (en) | Modified emulsified asphalt used for half warm mix modification and preparation method of the same | |
| CN109504108A (en) | A kind of weather-proof modified pitch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi Transportation Technology Research and Development Co.,Ltd. Patentee after: SHANXI TRANSP SCIENCE HIGHWAY SURVEY & DESIGN INST Address before: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee before: SHANXI TRAFFIC SCIENCES RESEARCH INSTITUTE Co.,Ltd. Patentee before: SHANXI TRANSP SCIENCE HIGHWAY SURVEY & DESIGN INST |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210722 Address after: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi Transportation Technology Research and Development Co.,Ltd. Address before: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee before: Shanxi Transportation Technology Research and Development Co.,Ltd. Patentee before: SHANXI TRANSP SCIENCE HIGHWAY SURVEY & DESIGN INST Effective date of registration: 20210722 Address after: 030032 No.27, Wuluo street, economic and Technological Park, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: SHANXI TRAFFIC SCIENCES RESEARCH INSTITUTE Co.,Ltd. Patentee after: SHANXI TRANSP SCIENCE HIGHWAY SURVEY & DESIGN INST Address before: No. 79, Xuefu street, Xiaodian District, Taiyuan, Shanxi Province Patentee before: Shanxi Transportation Research Institute Patentee before: SHANXI TRANSP SCIENCE HIGHWAY SURVEY & DESIGN INST |
|
| TR01 | Transfer of patent right |