CN109721285A - A kind of embedded and locked type noise large-stone asphalt stabilized macadam and preparation method thereof - Google Patents
A kind of embedded and locked type noise large-stone asphalt stabilized macadam and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of embedded and locked type noise large-stone asphalt stabilized macadams, including gather materials, miberal powder and pitch, the quality mixture ratio of each component are as follows: gather materials 80%-93%, miberal powder 5%-10%, pitch 1%-9%.The preparation method and low-temperature anticracking performance testing method of a kind of embedded and locked type noise large-stone asphalt stabilized macadam are further related to, preparation method: by pitch, gathering materials and mixed and stirred at a certain temperature with miberal powder；High-temperature resistant property energy test method: strain energy is as performance indicator.Embedded and locked type noise large-stone asphalt stabilized macadam provided by the invention is able to ascend the high-temperature stability of conventional flex road structure bitumen layer materials A TB series, low-temperature cracking-resistance and water stability, increases the ability for resisting road disease.
Description
Technical field
The present invention relates to highway construction fields, and in particular to a kind of embedded and locked type noise large-stone asphalt stabilized macadam and its preparation side
Method.
Background technique
China master pavement structure to be used is asphalt surface course and semi-rigid type base, and this construction method is emphasized asphalt road
Face do it is thin, carry out waterproof work, the cost of highway can be substantially reduced.But with the development of country, the volume of traffic and vehicle
The shortcomings that increase of load, structure itself, exposes out.If transition of stress is uneven, vehicle caused by surface layer Lack of support
The water destruct problem etc. of early stage in the bituminous pavement of the problems such as rut, crack and semi-rigid type base.These diseases are to state's family property
Political affairs cause very big burden.Therefore we are badly in need of a kind of novel asphalt, make it that can not only solve stress excessive
Uneven problem also can solve the water destruct problem of semi-rigid type base simultaneously.
It can be very good to solve problem above, but level of confidentiality using flexbile base such as graded broken stone or Asphalt Stabilized Macadam
Grade distribution sort with Asphalt Stabilized Macadam (ATB) belongs to skeleton suspension structure, is not particularly pertinent as its bearing capacity of base.
Then the exploitation of large-stone asphalt stabilized macadam base (ATSM) has been turned to.
Practice have shown that: the gradation design of asphalt can solve Heavy Traffic problem, because gradation design can be very big
Influence asphalt mechanical property and pavement performance.Wherein foremost is Fulller formula, which is by beauty
The formula that state scholar Fuller is proposed according to maximal density theory.Although Fuller formula can accurately calculate each sieve pore
Throughput.But since its power exponent is excessively high, so that fine aggregate accounting is high and is unable to satisfy the demand of Heavy Traffic.
Paper has been delivered in the shellfish thunder of Illinois Ministry of Communications in 2002, has proposed a kind of completely new gradation design method
Referred to as Bailey's method.Its cardinal principle is that certain skeleton structure is formed using coarse aggregate, is the asphalt of design by good
The ability of good permanent deformation resistant to high temperatures.The ratio that thickness is gathered materials is adjusted again and obtains suitable VMA value, to guarantee the pitch of design
Mixture has excellent durability.But its sieve pore used is 0.22 times of maximum particle diameter different from standard mesh, is caused
There is very big error in the grading curve and reality of calculating.And the design procedure of Bailey's method and its cumbersome, it calculates and authenticated
Journey requires corresponding computer program and testing regulations is completed.
Domestic researcher such as professor Zhang Xiaoning has delivered coarse aggregate hole completion method (CAVF), basic ideas be by
Pore volume after the apparent density of coarse aggregate and the calculating of compact density as coarse aggregate, subtracts the gap of design, is left
Gap be filled up completely by fine aggregate, filler.But this method has two big disadvantages, first point is that this method is not clear tight
The compact density that the experimental method of consistency, dry-tamp method and Marshall compaction method both methods obtain is different.Second
Point be gather materials to be contacted with apparent density state in actual mixture, while gather materials can also absorb a part drip
It is green.So CAVF method is suitable only for the design structure for examining mineral aggregate whether to meet framework compact.
SAC gradation design method is that the gap gradation design method that Sha Qinglin academician proposed in 1988 and China are autonomous
A kind of gradation design method of research and development.Its major design principle is to form skeleton with coarse aggregate is mutually chimeric, then uses fine aggregate
And the hole of filler filling coarse aggregate.To realize asphalt have anti-deforming, Rut resistance, be not easy water destruct,
The advantages that voidage is small equal.It is quasi- with the grading curve of coarse aggregate and the grading curve of a fine aggregate in calculating design
Synthesize a complete design curve.It is a little exactly that can use fixed formula that this method, which has one compared to Bailey's method, SUP method,
The percent of pass of each sieve pore is solved, while not being needed to devote a tremendous amount of time to do experiment and obtain empirical grading curve,
It is not only time saving and laborsaving in this way.Therefore SAC gradation design method is widely used at home.
There are also some researchers in China starts with from example interference theory, stage filling theory, maximal density theory, to certain
Kind, which is gathered materials, carries out gradation design, but its design method excessively complexity is suitable only for experimental study rather than has and generally anticipate
Justice, such as the uniform design based on distribution theory always, this method is considered that multifactor influence but it was calculated
Cheng Feichang is cumbersome, does not have directive significance for real road engineering.
Summary of the invention
To solve problems of the prior art, the present invention provides a kind of embedded and locked type noise large-stone asphalt stabilized macadam, energy
The high-temperature stability of conventional flex road structure bitumen layer materials A TB series, low-temperature cracking-resistance and water stability are enough promoted, is increased
Add the ability for resisting road disease.The present invention provides a kind of embedded and locked type noise large-stone asphalt stabilized macadam, including gathers materials, miberal powder and drip
Blueness, the quality mixture ratio of each component are as follows: gather materials 80%-93%, miberal powder 5%-10%, pitch 1%-9%.
Preferably, the quality mixture ratio ratio to gather materials are as follows: 88%-90%.
In any of the above-described scheme preferably, the quality mixture ratio of the miberal powder is 7%-8%.
In any of the above-described scheme preferably, the quality mixture ratio of the pitch is 2%-5%.
In any of the above-described scheme preferably, the pitch is matrix pitch, SBS modified pitch, rubber asphalt, emulsification drip
One or more of blueness.
In any of the above-described scheme preferably, the pitch is matrix pitch 70, matrix pitch 80 or matrix pitch
One of No. 90；
In any of the above-described scheme preferably, described to gather materials for one or both of limestone or basalt.
In any of the above-described scheme preferably, the partial size to gather materials is five kinds, is 25-40mm, 15-25mm, 10- respectively
15mm、5-10mm、0-5mm。
In any of the above-described scheme preferably, described to gather materials, gathering materials for partial size 25-40mm account for 30-35%.
In any of the above-described scheme preferably, described to gather materials, gathering materials for partial size 15-25mm account for 10-15%.
In any of the above-described scheme preferably, described to gather materials, gathering materials for partial size 10-15mm account for 10-15%.
In any of the above-described scheme preferably, described to gather materials, gathering materials for partial size 5-10mm account for 10-15%.
In any of the above-described scheme preferably, described to gather materials, gathering materials for partial size 0-15mm account for 0-15%.
A kind of preparation method of embedded and locked type noise large-stone asphalt stabilized macadam, by pitch, gathers materials with miberal powder at a certain temperature
It is mixed and stirred.
Preferably, the asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 100-200 DEG C.
In any of the above-described scheme preferably, the asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 150-180 DEG C.
In any of the above-described scheme preferably, the mixing time of the asphalt and aggregate and miberal powder is 60-150s.
In any of the above-described scheme preferably, the mixing time of the asphalt and aggregate and miberal powder is 90-120s.
The present invention also provides a kind of high-temperature resistant property energy test methods of embedded and locked type noise large-stone asphalt stabilized macadam, will strain
Performance indicator can be used as.
Preferably, using dynamic stability as performance indicator.
The beneficial effects of the present invention are: embedded and locked type noise large-stone asphalt stabilized macadam provided by the invention, is able to ascend tradition
Road is resisted in the high-temperature stability of flexible pavement structure bitumen layer materials A TB series, low-temperature cracking-resistance and water stability, increase
The ability of disease.
Detailed description of the invention
Fig. 1 is that one preferred embodiment of embedded and locked type noise large-stone asphalt stabilized macadam of the present invention is gathered materials and the formate gradation composition of miberal powder song
Line chart；
Fig. 2 is for the synthesis of another preferred embodiment of embedded and locked type noise large-stone asphalt stabilized macadam of the present invention gathered materials with miberal powder
Grading curve figure.
Specific embodiment
Below in conjunction with specific embodiments and the drawings, the present invention will be further described, but the contents of the present invention are not only limited to
In the following examples.Embodiment one:
A kind of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-25), the mixture including following quality mixture ratio: 85-
The pitch of 90% gather materials, the miberal powder of 6.5%-11.8% and 3.2-3.5%.
In the present embodiment, gather materials for limestone.
In the present embodiment, pitch is matrix pitch.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass percent gathered materials is 90%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of miberal powder is 11.8%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of matrix pitch is 3.2%.
For preparing 10000g embedded and locked type noise large-stone asphalt stabilized macadam, need to gather materials 9000g, need miberal powder 1180g, need base
Matter pitch 320g.In the present embodiment, the mass percent of the partial size of mineral aggregate and each partial size mineral aggregate is as shown in table 1.
The mass percent of the partial size of 1 mineral aggregate of table and each partial size mineral aggregate
The preparation method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment by pitch, gather materials with miberal powder in certain temperature
It is mixed and stirred under degree.Asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 150 DEG C；The mixing time of asphalt and aggregate and miberal powder is
100s。
The high-temperature resistant property energy test method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, using strain energy as
Performance indicator；Using dynamic stability as performance indicator.Embodiment two:
A kind of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-25), the mixture including following quality mixture ratio: 85-
The pitch of 90% gather materials, the miberal powder of 6.5%-11.8% and 3.2-3.5%.
In the present embodiment, gather materials for limestone.
In the present embodiment, pitch is matrix pitch.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass percent gathered materials is 85%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of miberal powder is 6.5%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of matrix pitch is 3.5%.
For preparing 10000g embedded and locked type noise large-stone asphalt stabilized macadam, need to gather materials 8500g, need miberal powder 650g, need base
Matter pitch 350g.In the present embodiment, the mass percent of the partial size of mineral aggregate and each partial size mineral aggregate is as shown in table 2.
The mass percent of the partial size of 2 mineral aggregate of table and each partial size mineral aggregate
| Partial size (mm) | 26.5 | 19 | 13.2 | 9.5 | Less than 9.5 |
| Mass percent (%) | 8.5 | 26.1 | 22 | 18.2 | 25.2 |
| Weight (g) | 722.5 | 2218.5 | 1870 | 1547 | 2142 |
The preparation method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment by pitch, gather materials with miberal powder in certain temperature
It is mixed and stirred under degree.Asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 150 DEG C；The mixing time of asphalt and aggregate and miberal powder is
100s。
The high-temperature resistant property energy test method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, using strain energy as
Performance indicator；Using dynamic stability as performance indicator.
Embodiment three:
A kind of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-30), the mixture including following quality mixture ratio:
The pitch of the gathering materials of 80%-90%, the miberal powder of 5%-18% and 2%-5%.
In the present embodiment, gather materials for limestone.
In the present embodiment, pitch is matrix pitch.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass percent gathered materials is 90%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of miberal powder is 7.2%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of matrix pitch is 2.8%.
For preparing 10000g embedded and locked type noise large-stone asphalt stabilized macadam, need to gather materials 9000g, need miberal powder 720g, need base
Matter pitch 280g.In the present embodiment, the mass percent of the partial size of mineral aggregate and each partial size mineral aggregate is as shown in table 3.
The mass percent of the partial size of 3 mineral aggregate of table and each partial size mineral aggregate
| Partial size (mm) | 31.5 | 19 | 13.2 | 9.5 | Less than 9.5 |
| Mass percent (%) | 34.8 | 14.1 | 16.3 | 16.3 | 18.5 |
| Weight (g) | 3132 | 1269 | 1467 | 1467 | 1665 |
The preparation method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment by pitch, gather materials with miberal powder in certain temperature
It is mixed and stirred under degree.Asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 180 DEG C；The mixing time of asphalt and aggregate and miberal powder is
120s。
The high-temperature resistant property energy test method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, using strain energy as
Performance indicator；Using dynamic stability as performance indicator.
Gradation design curve is to adjust each shelves dosage after carrying out sieve test to gathering materials in production, it is desirable that adjusted
Curve is in the range of design level matches bound；It carries out drawing after determining gradation composition and be verified；It illustrates last each
Shelves ratio is met the requirements in scope of design.
Fig. 1 is the gradation design curve of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-30), and each shelves ratio is in design model
In enclosing, meet the requirements.
Example IV:
A kind of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-30), the mixture including following quality mixture ratio:
The pitch of the gathering materials of 80%-90%, the miberal powder of 5%-18% and 2%-5%.
In the present embodiment, gather materials for limestone.
In the present embodiment, pitch is matrix pitch.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass percent gathered materials is 80%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of miberal powder is 18%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of matrix pitch is 2%.
For preparing 10000g embedded and locked type noise large-stone asphalt stabilized macadam, need to gather materials 8000g, need miberal powder 1700g, need base
Matter pitch 300g.In the present embodiment, the mass percent of the partial size of mineral aggregate and each partial size mineral aggregate is as shown in table 4.
The mass percent of the partial size of 4 mineral aggregate of table and each partial size mineral aggregate
| Partial size (mm) | 31.5 | 19 | 13.2 | 9.5 | Less than 9.5 |
| Mass percent (%) | 34.8 | 14.1 | 16.3 | 16.3 | 18.5 |
| Weight (g) | 2784 | 1015 | 1304 | 1304 | 1480 |
The preparation method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment by pitch, gather materials with miberal powder in certain temperature
It is mixed and stirred under degree.Asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 100 DEG C；The mixing time of asphalt and aggregate and miberal powder is
90s。
The high-temperature resistant property energy test method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, using strain energy as
Performance indicator；Using dynamic stability as performance indicator.
Embodiment five:
A kind of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-40), the mixture including following quality mixture ratio:
The pitch of the gathering materials of 80%-90%, the miberal powder of 6.5%-17.5% and 2.5%-3.5%.
In the present embodiment, gather materials for limestone.
In the present embodiment, pitch is matrix pitch.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass percent gathered materials is 90%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of miberal powder is 6.5%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of matrix pitch is 3.5%.
For preparing 10000g embedded and locked type noise large-stone asphalt stabilized macadam, need to gather materials 9000g, need miberal powder 650g, need base
Matter pitch 350g.In the present embodiment, the mass percent of the partial size of mineral aggregate and each partial size mineral aggregate is as shown in table 5.
The mass percent of the partial size of 5 mineral aggregate of table and each partial size mineral aggregate
| Partial size (mm) | Greater than 26.5 | 19 | 13.2 | 9.5 | Less than 9.5 |
| Mass percent (%) | 23.9 | 26.1 | 19.6 | 15.2 | 15.2 |
| Weight (g) | 2151 | 2349 | 1764 | 1368 | 1368 |
The preparation method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment by pitch, gather materials with miberal powder in certain temperature
It is mixed and stirred under degree.Asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 100 DEG C；The mixing time of asphalt and aggregate and miberal powder is
90s。
The high-temperature resistant property energy test method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, using strain energy as
Performance indicator；Using dynamic stability as performance indicator.
Fig. 2 is the gradation design curve of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-40), and each shelves ratio is in design model
In enclosing, meet the requirements.
Embodiment six:
A kind of embedded and locked type noise large-stone asphalt stabilized macadam (ATSM-40), the mixture including following quality mixture ratio:
The pitch of the gathering materials of 80%-90%, the miberal powder of 6.5%-17.5% and 2.5%-3.5%.
In the present embodiment, gather materials for limestone.
In the present embodiment, pitch is matrix pitch.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass percent gathered materials is 80%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of miberal powder is 2.5%.
In the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, the mass ratio of matrix pitch is 17.5%.
For preparing 10000g embedded and locked type noise large-stone asphalt stabilized macadam, need to gather materials 8000g, need miberal powder 1750g, need base
Matter pitch 250g.In the present embodiment, the mass percent of the partial size of mineral aggregate and each partial size mineral aggregate is as shown in table 6.
The mass percent of the partial size of 6 mineral aggregate of table and each partial size mineral aggregate
| Partial size (mm) | Greater than 26.5 | 19 | 13.2 | 9.5 | Less than 9.5 |
| Mass percent (%) | 23.9 | 26.1 | 19.6 | 15.2 | 15.2 |
| Weight (g) | 1912 | 2088 | 1568 | 1216 | 1216 |
The preparation method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment by pitch, gather materials with miberal powder in certain temperature
It is mixed and stirred under degree.Asphalt and aggregate and the temperature of mixing and stirring of miberal powder are 100 DEG C；The mixing time of asphalt and aggregate and miberal powder is
90s。
The high-temperature resistant property energy test method of the embedded and locked type noise large-stone asphalt stabilized macadam of the present embodiment, using strain energy as
Performance indicator；Using dynamic stability as performance indicator.
Embedded and locked type noise large-stone asphalt stabilized macadam prepared by embodiment one to embodiment six is subjected to anti-low-temperature cracking, high temperature
Dynamic stability and freeze-thaw split test, test result is as shown in table 7-9.
The crack resistance at low-temperature test result of 7 embedded and locked type noise large-stone asphalt stabilized macadam of table
The high temperature stability performance test result of 8 embedded and locked type noise large-stone asphalt stabilized macadam of table
| Embodiment number | Dynamic stability (mm/ times) |
| ATB-25 | 1956.1 |
| Embodiment one (ATSM-25) | 1966.2 |
| Embodiment two (ATSM-25) | 2015.8 |
| ATB-30 | 2233.7 |
| Embodiment three (ATSM-30) | 2790.1 |
| Example IV (ATSM-30) | 2483.4 |
| ATB-40 | 2897.7 |
| Embodiment five (ATSM-40) | 3634.2 |
| Embodiment six (ATSM-40) | 3165.1 |
The water stabilizing test result of 9 embedded and locked type noise large-stone asphalt stabilized macadam of table
| Embodiment number | Remaining stability (%) | Freeze-thaw split tensile strength ratio (%) |
| ATB-25 | 79.29 | 80.15 |
| Embodiment one (ATSM-25) | 80.21 | 81.85 |
| Embodiment two (ATSM-25) | 82.24 | 83.56 |
| ATB-30 | 80.12 | 81.09 |
| Embodiment three (ATSM-30) | 81.44 | 81.15 |
| Example IV (ATSM-30) | 84.24 | 83.48 |
| ATB-40 | 81.85 | 81.33 |
| Embodiment five (ATSM-40) | 82.33 | 83.85 |
| Embodiment six (ATSM-40) | 83.24 | 80.48 |
Conclusion: from the point of view of test result, the strain energy of embodiment one and two (ATSM-25) is higher than as can be seen from Table 7
ATB-25, the strain energy of embodiment three and four (ATSM-30) are higher than ATB-30, and the strain energy of embodiment five and six is higher than ATB-
40, it is seen that the crack resistance at low-temperature of embedded and locked type noise large-stone asphalt stabilized macadam provided by the invention is mixed better than ATB Series of Asphalt
Material.
The dynamic stability of embodiment one and two (ATSM-25) is higher than ATB-25, embodiment three and four as can be seen from Table 8
(ATSM-30) dynamic stability is higher than ATB-30, and the dynamic stability of embodiment five and six is higher than ATB-40, it is seen that the present invention provides
Embedded and locked type noise large-stone asphalt stabilized macadam high temperature stability performance be better than ATB Series of Asphalt mixture.
The remaining stability of embodiment one and two (ATSM-25) and freeze-thaw split tensile strength ratio as can be seen from Table 9
Higher than ATB-25, the remaining stability and freeze-thaw split tensile strength ratio of embodiment three and four (ATSM-30) are higher than ATB-30,
The remaining stability and freeze-thaw split tensile strength ratio of embodiment five and six are higher than ATB-40, it is seen that interlocking provided by the invention
The water stabilizing of formula large-stone asphalt stabilized macadam is better than ATB Series of Asphalt mixture.
Therefore the pavement performance of ATSM Series of Asphalt mixture is an advantage over ATB Series of Asphalt mixture.
Claims (10)
1. a kind of embedded and locked type noise large-stone asphalt stabilized macadam, including gather materials, miberal powder and pitch, it is characterised in that: each component
Quality mixture ratio are as follows: gather materials 80%-93%, miberal powder 5%-10%, pitch 1%-9%.
2. embedded and locked type noise large-stone asphalt stabilized macadam as described in claim 1, it is characterised in that: the quality cooperation gathered materials
Frequently are as follows: 88%-90%.
3. embedded and locked type noise large-stone asphalt stabilized macadam as claimed in claim 2, it is characterised in that: the quality of the miberal powder is matched
Composition and division in a proportion is 7%-8%.
4. embedded and locked type noise large-stone asphalt stabilized macadam as claimed in claim 3, it is characterised in that: the quality of the pitch cooperates
Than for 2%-5%.
5. embedded and locked type noise large-stone asphalt stabilized macadam as claimed in claim 4, it is characterised in that: the pitch is matrix drip
One or more of blueness, SBS modified pitch, rubber asphalt, emulsified asphalt.
6. embedded and locked type noise large-stone asphalt stabilized macadam as claimed in claim 5, it is characterised in that: the pitch is matrix pitch
No. 70, one of matrix pitch 80 or matrix pitch 90.
7. embedded and locked type noise large-stone asphalt stabilized macadam as claimed in claim 6, it is characterised in that: it is described gather materials for limestone or
One or both of basalt.
8. embedded and locked type noise large-stone asphalt stabilized macadam as claimed in claim 6, it is characterised in that: the partial size to gather materials is five
Kind, it is 25-40mm, 15-25mm, 10-15mm, 5-10mm, 0-5mm respectively.
9. such as the preparation method of the described in any item embedded and locked type noise large-stone asphalt stabilized macadams of claim 1-8, it is characterised in that:
By pitch, gathers materials and mixed and stirred at a certain temperature with miberal powder.
10. the high-temperature resistant property such as the described in any item embedded and locked type noise large-stone asphalt stabilized macadams of claim 1-8 can the side of test
Method, it is characterised in that: using strain energy as performance indicator.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111732371A (en) * | 2020-07-13 | 2020-10-02 | 江苏东交智控科技集团股份有限公司 | Separated regenerated flexible base material and preparation method thereof |
| CN113250010A (en) * | 2021-04-20 | 2021-08-13 | 东南大学 | Large-particle-size asphalt macadam flexible ballast bed and construction method thereof |
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Application publication date: 20190507 |