CN108254539A - The appraisal procedure that a kind of degree of aging influences rubber powder and the miscible state of pitch - Google Patents
The appraisal procedure that a kind of degree of aging influences rubber powder and the miscible state of pitch Download PDFInfo
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- CN108254539A CN108254539A CN201810085617.6A CN201810085617A CN108254539A CN 108254539 A CN108254539 A CN 108254539A CN 201810085617 A CN201810085617 A CN 201810085617A CN 108254539 A CN108254539 A CN 108254539A
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- rubber powder
- rubber
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- asphalt
- pitch
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/44—Resins; rubber; leather
- G01N33/445—Rubber
Abstract
The invention discloses the appraisal procedure that a kind of degree of aging influences rubber powder and the miscible state of pitch, including：Matrix pitch by different degree of agings and the rubber powder without burin-in process prepare rubber asphalt A；4) rubber powder by different degree of agings prepares part rubber asphalt B with the matrix pitch without burin-in process；Influence of the matrix pitch degree of aging to the miscible state of rubber powder and matrix pitch is assessed by the volume sweell(ing) rate and degradation rate of rubber powder particles in rubber asphalt A；The influence of the volume sweell(ing) rate of rubber powder particles and degradation rate assessment rubber powder degree of aging to the miscible state of rubber powder and matrix pitch, this method can assess the influence of the degree of aging of rubber powder and the degree of aging of matrix pitch to rubber powder and the miscible state of pitch in rubber asphalt B.
Description
Technical field
The invention belongs to field of road, are related to a kind of commenting for degree of aging state influence miscible with pitch on rubber powder
Estimate method.
Background technology
In recent years, it with the stable development of China's economic, the rapid development of Domestic Automotive Industry, while also produces a large amount of
Waste rubber tire, " black pollution " caused bring environmental issue caused by a large amount of waste tires.Waste old
Recycling is to solve shortage of resources and the effective way of environmental pollution.
Currently, asphalt modification technology is carried out using shoddy to be widely used.Rubber asphalt introduces road engineering neck
Waste in addition to effectively consuming pollution of the waste tire mitigation to environment, while is also converted into limited pitch and provided by domain
Source.In face of current complicated bituminous paving behaviour in service, Rubber-Asphalt Pavement has superior anti-fatigue performance, ageing resistance
Energy, anti-rut behavior, high temperature stability performance and low-temperature flexibility performance have obtained more and more extensive answer in field of road
With.
Rubber asphalt be by the waste tire of automobile be processed it is broken, grinding cracking after obtain have certain intensity
With the rubber powder granule of shape, at a suitable temperature, waste rubber tyre powder is mixed with matrix pitch, by heating stirring or shearing
What grinding was prepared.
During rubber asphalt is prepared, the technological property of rubber asphalt and the close phase of property of rubber powder and matrix pitch
It closes.Rubber powder is mostly that waste tire is ground, and is caused suffered by tire since rubber tyre usage time is different with the time is put aside as useless
The mechanical stress time, thermo-oxidative ageing time and light ageing time it is different, there are rubber tyre degree of aging different problems, make
There is also differences for the degree of aging of rubber powder.The degree of aging difference of rubber powder can lead to the molecular structure of rubber powder granule, surface
Pattern changes, and the molecular weight and molecular structure for making rubber asphalt change, and rubber powder can also be sent out with the miscible state of pitch
Changing.Matrix pitch can influence internal lightweight component ratio and colloid knot as the main body in rubber asphalt, degree of aging
Structure, these variations have an impact rubber powder and the miscible state of pitch.The variation of miscible state can lead to the performance of rubber asphalt
Generate variation.
However, lack miscible shape of the degree of aging to rubber powder and pitch of rubber powder degree of aging and matrix pitch at present
The evaluation method that state influences.
Invention content
The shortcomings that it is an object of the invention to overcome the above-mentioned prior art, provides a kind of degree of aging to rubber powder and drip
The appraisal procedure that green miscible state influences, this method can assess the degree of aging of rubber powder and the degree of aging pair of matrix pitch
Rubber powder and the influence of the miscible state of pitch.
In order to achieve the above objectives, the assessment side that degree of aging of the present invention influences rubber powder and the miscible state of pitch
Method includes the following steps：
1) matrix pitch is weighed, then matrix pitch is divided into several pieces, and carry out aging to each part matrix pitch, is obtained different
The matrix pitch of degree of aging；
2) rubber powder is weighed, then rubber powder is sieved, cleaned and dried successively, is then divided into rubber powder several
Part, and aging is carried out to each part rubber powder, obtain the rubber powder of different degree of agings；
3) matrix pitch of the different degree of agings obtained by step 1) and the rubber powder without burin-in process prepare rubber
Glue pitch obtains several pieces rubber asphalt A；
4) rubber powder of the different degree of agings obtained by step 2) prepares rubber with the matrix pitch without burin-in process
Glue pitch obtains several pieces rubber asphalt B；
5) measuring process 3) volume of rubber powder particles in the obtained rubber asphalt B of obtained rubber asphalt A and step 4)
Swelling ratio, and measuring process 3) degradation rate of rubber powder particles in the obtained rubber asphalt of obtained rubber asphalt A and step 4),
Rubber in the rubber asphalt A that the volume sweell(ing) rate of rubber powder particles and step 3) obtain in the rubber asphalt A obtained by step 3)
Influence of the degradation rate assessment matrix pitch degree of aging of rubber powder granule to the miscible state of rubber powder and matrix pitch；Step 4)
Rubber powder particles in the rubber asphalt B that the volume sweell(ing) rate of rubber powder particles and step 4) obtain in obtained rubber asphalt B
Degradation rate assesses influence of the rubber powder degree of aging to the miscible state of rubber powder and matrix pitch.
The number of step 1) mesostroma pitch be three parts, and the ageing time of three parts of matrix pitches be respectively 0h, 5h and
10h, and the aging temperature in three parts of matrix pitch ageing processes is identical.
In step 2) number of rubber powder be eight parts, and the ageing time of eight parts of rubber powders be respectively 0min, 10min,
20min, 30min, 40min, 50min, 60min and 120min, and the aging of the aging temperature and matrix pitch of eight parts of rubber powders
Temperature is identical.
The detailed process sieved, cleaned and dried to rubber powder in step 2) is：By rubber powder sieve to rubber powder into
Row screening obtains grain size and is the rubber powder of r, then dried after being cleaned with distilled water to rubber powder, then with alcohol to rubber powder
It is cleaned, is finally placed into vent cabinet and dries.
Measuring process 3 in step 5)) detailed process of the volume sweell(ing) rate of rubber powder particles in obtained rubber asphalt A
For：
Rubber asphalt A 5a) is heated to flow regime, then rubber asphalt A is dipped with glass bar, then by rubber asphalt A points
It drips on glass slide, glass slide is then compressed by coverslip, obtains Sample A；
5b) rubber powder granule in Sample A is measured by fluorescence microscope and Image-Pro Plus image analysis softwares to be swollen
Diameter R afterwards obtains the volume sweell(ing) rate V of rubber powder particles in rubber asphalt ARFor：
Measuring process 3 in step 5)) in obtained rubber asphalt A the concrete operations of the pellet degradation rate of rubber powder be：
51) using rubber asphalt A as sample B；
52) it is weighed after sample B is cooled down, obtains the quality m of sample B1, it is m to take quality2Qualitative filter paper, then by sample
B is wrapped in qualitative filter paper, is then bundled by rope；
53) toluene solution is placed in the boiling flask in extraction equipment for fat, then the qualitative filter paper for being enclosed with sample B is put
It puts in extraction equipment for fat；
54) extraction equipment for fat is placed into draught cupboard, and boiling flask is heated, using extraction equipment for fat to examination
Sample B carries out extracting elution repeatedly, until the toluene solution in extraction equipment for fat becomes colorless, qualitative filter paper becomes white；
Then the qualitative filter paper for being enclosed with sample B is placed into vent cabinet, after toluene solution completely volatilization, sample B will be enclosed with
Qualitative filter paper be placed into baking oven and dry, rope is removed after cooling, and weigh the quality for the qualitative filter paper for being enclosed with sample B
m3, then the degradation rate Ψ of rubber powder particles is in rubber asphalt A：
Amounts of the ε for rubber powder, Ψ0The dissolution rate of toluene is dissolved in for rubber powder.
The measurement process that rubber powder is dissolved in the dissolution rate of toluene is：
Take the rubber powder sample of 1g, then using the rubber powder sample as sample B, then repeatedly step 52), step 53)
And step 54), obtain the dissolution rate Ψ that rubber powder is dissolved in toluene0For：
m31Quality for the qualitative filter paper that rubber powder sample is enclosed in step 54).
The invention has the advantages that：
The appraisal procedure that degree of aging of the present invention influences rubber powder and the miscible state of pitch in concrete operations,
Matrix pitch by different degree of agings and the rubber powder without burin-in process prepare rubber asphalt A, pass through different aging journeys
The rubber powder of degree prepares rubber asphalt B with the matrix pitch without burin-in process, then measures rubber asphalt A and rubber asphalt B
The volume sweell(ing) rate and degradation rate of middle rubber powder particles, finally according to the volume sweell(ing) rate of rubber powder particles in rubber asphalt A and
Degradation rate assesses influence of the matrix pitch degree of aging to the miscible state of rubber powder and matrix pitch；Finally according to rubber asphalt
The volume sweell(ing) rate of rubber powder particles and degradation rate assess miscible shape of the rubber powder degree of aging to rubber powder and matrix pitch in B
The influence of state, convenient and simple for operation, the performance measurement for rubber asphalt provides initiative method.
Description of the drawings
Fig. 1 is the diameter measurement design sketch after rubber powder granules swell.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the degree of aging of the present invention appraisal procedure that state miscible with pitch influences on rubber powder includes
Following steps：
1) matrix pitch is weighed, then matrix pitch is divided into several pieces, and carry out aging to each part matrix pitch, is obtained different
The matrix pitch of degree of aging；
2) rubber powder is weighed, then rubber powder is sieved, cleaned and dried successively, is then divided into rubber powder several
Part, and aging is carried out to each part rubber powder, obtain the rubber powder of different degree of agings；
3) matrix pitch of the different degree of agings obtained by step 1) and the rubber powder without burin-in process prepare rubber
Glue pitch obtains several pieces rubber asphalt A；
4) rubber powder of the different degree of agings obtained by step 2) prepares rubber with the matrix pitch without burin-in process
Glue pitch obtains several pieces rubber asphalt B；
5) measuring process 3) volume of rubber powder particles in the obtained rubber asphalt B of obtained rubber asphalt A and step 4)
Swelling ratio, and measuring process 3) degradation rate of rubber powder particles in the obtained rubber asphalt of obtained rubber asphalt A and step 4),
Rubber in the rubber asphalt A that the volume sweell(ing) rate of rubber powder particles and step 3) obtain in the rubber asphalt A obtained by step 3)
Influence of the degradation rate assessment matrix pitch degree of aging of rubber powder granule to the miscible state of rubber powder and matrix pitch；Step 4)
Rubber powder particles in the rubber asphalt B that the volume sweell(ing) rate of rubber powder particles and step 4) obtain in obtained rubber asphalt B
Degradation rate assesses influence of the rubber powder degree of aging to the miscible state of rubber powder and matrix pitch, wherein, measuring process 3)
To the obtained rubber asphalt B of rubber asphalt A and step 4) in rubber powder particles volume sweell(ing) rate method it is identical；Measure step
The method of the degradation rate of rubber powder particles is identical in the rubber asphalt that the rapid rubber asphalt A 3) obtained and step 4) obtain.
The number of step 1) mesostroma pitch be three parts, and the ageing time of three parts of matrix pitches be respectively 0h, 5h and
10h, and the aging temperature in three parts of matrix pitch ageing processes is identical.
In step 2) number of rubber powder be eight parts, and the ageing time of eight parts of rubber powders be respectively 0min, 10min,
20min, 30min, 40min, 50min, 60min and 120min, and the aging of the aging temperature and matrix pitch of eight parts of rubber powders
Temperature is identical.
The detailed process sieved, cleaned and dried to rubber powder in step 2) is：By rubber powder sieve to rubber powder into
Row screening obtains grain size and is the rubber powder of r, then dried after being cleaned with distilled water to rubber powder, then with alcohol to rubber powder
It is cleaned, is finally placed into vent cabinet and dries.
Measuring process 3 in step 5)) detailed process of the volume sweell(ing) rate of rubber powder particles in obtained rubber asphalt A
For：
Rubber asphalt A 5a) is heated to flow regime, then rubber asphalt A is dipped with glass bar, then by rubber asphalt A points
It drips on glass slide, glass slide is then compressed by coverslip, obtains Sample A；
5b) rubber powder granule in Sample A is measured by fluorescence microscope and Image-Pro Plus image analysis softwares to be swollen
Diameter R afterwards obtains the volume sweell(ing) rate V of rubber powder particles in rubber asphalt ARFor：
Measuring process 3 in step 5)) in obtained rubber asphalt A the concrete operations of the pellet degradation rate of rubber powder be：
51) using rubber asphalt A as sample B；
52) it is weighed after sample B is cooled down, obtains the quality m of sample B1, it is m to take quality2Qualitative filter paper, then by sample
B is wrapped in qualitative filter paper, is then bundled by rope；
53) toluene solution is placed in the boiling flask in extraction equipment for fat, then the qualitative filter paper for being enclosed with sample B is put
It puts in extraction equipment for fat；
54) extraction equipment for fat is placed into draught cupboard, and boiling flask is heated, using extraction equipment for fat to examination
Sample B carries out extracting elution repeatedly, until the toluene solution in extraction equipment for fat becomes colorless, qualitative filter paper becomes white；
Then the qualitative filter paper for being enclosed with sample B is placed into vent cabinet, after toluene solution completely volatilization, sample B will be enclosed with
Qualitative filter paper be placed into baking oven and dry, rope is removed after cooling, and weigh the quality for the qualitative filter paper for being enclosed with sample B
m3, then the degradation rate Ψ of rubber powder particles is in rubber asphalt A：
Amounts of the ε for rubber powder, Ψ0The dissolution rate of toluene is dissolved in for rubber powder.
Wherein, the measurement process that rubber powder is dissolved in the dissolution rate of toluene is：
Take the rubber powder sample of 1g, then using the rubber powder sample as sample B, then repeatedly step 52), step 53)
And step 54), obtain the dissolution rate Ψ that rubber powder is dissolved in toluene0For：
m31Quality for the qualitative filter paper that rubber powder sample is enclosed in step 54).
Embodiment one
This example selects the SK 90# pitches of Shaanxi Guo Chuan asphalt materials Co., Ltd production, in order to obtain the matrix of aging
Pitch, selects 82 type asphalt rotating thin-film ovens to carry out aging, 163 DEG C of aging temperature to matrix pitch, and aging duration is respectively
0h, 5h and 10h obtain the matrix pitch of different degree of agings.
Rubber powder in this example be derived from Xi'an grow up Hua Chu companies production bias tire rubber powder, rubber powder fineness be 20
- 90 mesh of mesh, wherein, the size of different-grain diameter rubber powder is as shown in table 1.
Table 1
The rubber powder in the rubber powder sieve of 40 mesh, i.e. r=0.45mm are chosen in the present embodiment；And to the rubber of each rubber asphalt
The diameter of rubber powder granule carries out 8 measurements, then the diameter in rubber asphalt A after rubber powder granules swell is as shown in table 2.
Table 2
The measurement result of the volume sweell(ing) rate of rubber powder particles is as shown in table 3 in rubber asphalt A.
Table 3
By data in table 3 it is found that with the increase of matrix pitch degree of aging, the volume sweell(ing) rate of rubber powder constantly drops
Low, the miscible state of rubber powder and matrix pitch is poorer, illustrates the degree of aging of rubber powder and matrix pitch to rubber powder and drip
Green miscible state influences more notable.
Diameter in rubber asphalt B after rubber powder granules swell is as shown in table 4.
Table 4
The measurement result of the volume sweell(ing) rate of rubber powder particles is as shown in table 5 in rubber asphalt B.
Table 5
As can be seen from Table 5, rubber powder is at 180 DEG C, volume 20%, when carrying out the asphalt system swell test of 90min,
With the growth of rubber powder ageing time, the volume sweell(ing) rate of rubber powder constantly reduces.When rubber powder ageing time is 0, rubber
The volume sweell(ing) rate of rubber powder reaches maximum value 2.77；When rubber powder ageing time is 50min or so, rubber powder volume sweell(ing) rate
Close to 0；And after rubber powder ageing time is more than 50min, rubber powder particles volume volume sweell(ing) rate is negative value.
Increase with the degree of aging of rubber powder, the volume sweell(ing) rate of rubber powder constantly reduces, and rubber powder finally occurs
There is the phenomenon that negative value in the volume sweell(ing) rate of grain, and the miscible state of rubber powder and matrix pitch is poorer, and rubber powder particles once reach
To certain degree of aging, modifying function can not be played, illustrates that the degree of aging of rubber powder mixes rubber powder and matrix pitch
Molten state influences more notable.
Three parts of rubber asphalt A, three parts of rubber asphalt B and three parts of rubber powder samples are taken, carry out step 52)-step respectively
54) quality of qualitative filter paper that, three parts of rubber asphalt A are enclosed with rubber asphalt A during the test, in step 54) is respectively
m1(g)、m2(g) and m3(g), test data record is as shown in table 6.
Table 6
Using data in table 6, it is 4.08% to calculate dissolution rate of the rubber powder sample in toluene solution, then calculates rubber drip
The pellet degradation rate of rubber powder, result of calculation are as shown in table 7 in green A.
Table 7
By data in table 7 it can be found that the degradation rate of rubber powder particles is with matrix pitch ageing time in rubber asphalt
Increase and reduce.Number it was demonstrated that the quality degradation rate of rubber powder particles in rubber asphalt can be made reduce after matrix pitch aging, and
The quality degradation rate of rubber powder granule can constantly be reduced with the increase of matrix pitch degree of aging, so as to rubber powder and pitch
Miscible state is poorer, illustrates that the degree of aging of rubber powder and matrix pitch is more aobvious on the miscible state influence of rubber powder and pitch
It writes.
The quality that the qualitative filter paper of rubber asphalt B is enclosed in step 54) is respectively m11(g)、m21(g) and m31(g), it surveys
Data are measured as shown in table 8 and table 9.
Table 8
Table 9
The degradation rate of rubber powder particles is as shown in table 10 in the rubber asphalt being calculated.
Table 10
By data in table 10 it can be found that the degradation rate of rubber powder particles is with rubber powder ageing time in rubber asphalt
Increase and reduce.Number is it was demonstrated that can make the quality degradation rate of rubber powder particles in rubber asphalt reduce, and rubber after rubber powder aging
The quality degradation rate of rubber powder granule can constantly be reduced with the increase of rubber powder degree of aging, and rubber powder particles once reach one
Fixed degree of aging, degradation are suppressed, and can not play modifying function, so as to which the miscible state of rubber powder and matrix pitch is got over
Difference illustrates that the degree of aging of rubber powder and matrix pitch is more notable on the miscible state influence of rubber powder and matrix pitch.
Claims (7)
1. the appraisal procedure that a kind of degree of aging influences rubber powder and the miscible state of pitch, which is characterized in that including following step
Suddenly：
1) matrix pitch is weighed, then matrix pitch is divided into several pieces, and carry out aging to each part matrix pitch, obtains different agings
The matrix pitch of degree；
2) rubber powder is weighed, then rubber powder is sieved, cleaned and dried successively, rubber powder is then divided into several pieces, and
Aging is carried out to each part rubber powder, obtains the rubber powder of different degree of agings；
3) matrix pitch of the different degree of agings obtained by step 1) and the rubber powder without burin-in process prepare rubber drip
Blueness obtains several pieces rubber asphalt A；
4) rubber powder of the different degree of agings obtained by step 2) prepares rubber drip with the matrix pitch without burin-in process
Blueness obtains several pieces rubber asphalt B；
5) measuring process 3) volume sweell(ing) of rubber powder particles in the obtained rubber asphalt B of obtained rubber asphalt A and step 4)
Rate, and measuring process 3) degradation rate of rubber powder particles in the obtained rubber asphalt B of obtained rubber asphalt A and step 4), leads to
Cross rubber in the rubber asphalt A that the volume sweell(ing) rate of rubber powder particles in the rubber asphalt A that step 3) obtains and step 3) obtain
Influence of the degradation rate assessment matrix pitch degree of aging of powder particles to the miscible state of rubber powder and matrix pitch；Step 4)
To rubber asphalt B in the volume sweell(ing) rate of rubber powder particles and the obtained rubber asphalt B of step 4) rubber powder particles drop
Solution rate assesses influence of the rubber powder degree of aging to the miscible state of rubber powder and matrix pitch.
2. the appraisal procedure that degree of aging according to claim 1 influences rubber powder and the miscible state of pitch, feature
It is, the number of step 1) mesostroma pitch is three parts, and the ageing time of three parts of matrix pitches is respectively 0h, 5h and 10h, and
Aging temperature in three parts of matrix pitch ageing processes is identical.
3. the appraisal procedure that degree of aging according to claim 1 influences rubber powder and the miscible state of pitch, feature
Be, in step 2) number of rubber powder be eight parts, and the ageing time of eight parts of rubber powders be respectively 0min, 10min, 20min,
30min, 40min, 50min, 60min and 120min, and the aging temperature phase of the aging temperature of eight parts of rubber powders and matrix pitch
Together.
4. the appraisal procedure that degree of aging according to claim 1 influences rubber powder and the miscible state of pitch, feature
It is, the detailed process sieved, cleaned and dried to rubber powder in step 2) is：Rubber powder is sieved by rubber powder sieve
Point, it obtains grain size and is the rubber powder of r, then dried after being cleaned with distilled water to rubber powder, then rubber powder is carried out with alcohol
Cleaning, is finally placed into vent cabinet and dries.
5. the appraisal procedure that degree of aging according to claim 4 influences rubber powder and the miscible state of pitch, feature
It is, measuring process 3 in step 5)) detailed process of the volume sweell(ing) rate of rubber powder particles is in obtained rubber asphalt A：
Rubber asphalt A 5a) is heated to flow regime, then dip rubber asphalt A, then rubber asphalt A points are dripped to glass bar
On glass slide, glass slide is then compressed by coverslip, obtains Sample A；
5b) measured in Sample A after rubber powder granule swelling by fluorescence microscope and Image-Pro Plus image analysis softwares
Diameter R obtains the volume sweell(ing) rate V of rubber powder particles in rubber asphalt ARFor：
6. the appraisal procedure that degree of aging according to claim 4 influences rubber powder and the miscible state of pitch, feature
Be, measuring process 3 in step 5)) in obtained rubber asphalt A the concrete operations of the pellet degradation rate of rubber powder be：
51) using rubber asphalt A as sample B；
52) it is weighed after sample B is cooled down, obtains the quality m of sample B1, it is m to take quality2Qualitative filter paper, then by sample B packet
It is wrapped in qualitative filter paper, is then bundled by rope；
53) toluene solution is placed in the boiling flask in extraction equipment for fat, then the qualitative filter paper for being enclosed with sample B is placed into
In extraction equipment for fat；
54) extraction equipment for fat is placed into draught cupboard, and boiling flask is heated, using extraction equipment for fat to sample B
Extracting elution repeatedly is carried out, until the toluene solution in extraction equipment for fat becomes colorless, qualitative filter paper becomes white；Then
The qualitative filter paper for being enclosed with sample B is placed into vent cabinet, after toluene solution completely volatilization, determining for sample B will be enclosed with
Property filter paper, which is placed into baking oven, dries, and rope is removed after cooling, and weigh the quality m for the qualitative filter paper for being enclosed with sample B3, then
Rubber asphalt A in the degradation rate Ψ of rubber powder particles be：
Amounts of the ε for rubber powder, Ψ0The dissolution rate of toluene is dissolved in for rubber powder.
7. the appraisal procedure that degree of aging according to claim 6 influences rubber powder and the miscible state of pitch, feature
It is, the measurement process that rubber powder is dissolved in the dissolution rate of toluene is：
Take the rubber powder sample of 1g, then using the rubber powder sample as sample B, then repeatedly step 52), step 53) and step
It is rapid 54), obtain the dissolution rate Ψ that rubber powder is dissolved in toluene0For：
m31Quality for the qualitative filter paper that rubber powder sample is enclosed in step 54).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109553A (en) * | 2021-04-13 | 2021-07-13 | 长安大学 | Asphalt binder fatigue resistance performance evaluation method and system |
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2018
- 2018-01-29 CN CN201810085617.6A patent/CN108254539A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113109553A (en) * | 2021-04-13 | 2021-07-13 | 长安大学 | Asphalt binder fatigue resistance performance evaluation method and system |
| CN113109553B (en) * | 2021-04-13 | 2023-04-18 | 长安大学 | Asphalt binder fatigue resistance performance evaluation method and system |
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