CN103411803A - Vibration molding method of drainage asphalt mixture - Google Patents
Vibration molding method of drainage asphalt mixture Download PDFInfo
- Publication number
- CN103411803A CN103411803A CN2013102405900A CN201310240590A CN103411803A CN 103411803 A CN103411803 A CN 103411803A CN 2013102405900 A CN2013102405900 A CN 2013102405900A CN 201310240590 A CN201310240590 A CN 201310240590A CN 103411803 A CN103411803 A CN 103411803A
- Authority
- CN
- China
- Prior art keywords
- punching block
- vibration
- asphalt
- temperature
- 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.)
- Pending
Links
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention relates to a vibration molding method of a drainage asphalt mixture specimen. The method comprises the following steps: (1) preparing asphalt mixture; (2) mixing the asphalt mixture; (3) carrying out vibration molding: performing the vibration molding on the mixture by using an indoor surface vibration molding instrument, wherein the parameter is selected as follows: the working frequency is 35Hz, the eccentric block included angle is 120 DEG, each of four aboard balance weight is 6.95Kg, each of five get-off balance weights is 4.41Kg, the vibration time is 2min, namely, H35J120S4X5-2min. The field grinding process can be well simulated according to the method provided by the invention, the aggregate arrangement is close to the actual pavement, the test instrument is simple, convenient and easy to spread and apply. The drainage asphalt mixture specimen in vibration molding by adopting optimal parameter is small in grading degradation, and each pavement performance is greatly improved, and the positive significance is provided for prolonging the service life of the drainage pavement of our country, and the method provided by the invention is wide in application prospect and obvious in economic and social benefit.
Description
Technical field
The present invention relates to the vibration formation method of the asphalt of road engineering, particularly a kind of drainage asphalt mixture.
Background technology
General general drainage asphalt mixture shaping method of specimen is in the world at present: Marshall compaction method and gyratory compaction method.
(1) Marshall compaction method: the shaping method of specimen of China's regulation and stipulation drainage asphalt mixture adopts Marshall to hit reality two-sided 50 times at present.But aspect specimen molding, compacting function when Marshall method hammer number and pavement forming does not have inner link, there are greatest differences in the impulsive force of Marshall hammer and wheel of vehicle ground connection pressure, the Marshall die trial is also different from the stress condition of actual ground surface material to the constraint condition of asphalt, Marshall's shock compaction method is unfavorable for the directional realignment gathered materials, and therefore with the test specimen of marshall compaction mode moulding, has all deficiencies.
(2) gyratory compaction method: for gather materials fragmentation in hitting real process of minimizing, make the situation of the arrangement of gathering materials closer to actual road surface, have research to adopt the SGC moulding, the gyratory compaction number of times adopts 50 times.But the expensive inconvenience of gyratory compaction molding instrument is promoted, and on action principle, has certain gap with the construction technology of on-the-spot vibroroller cmpacting.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of vibration formation method of drainage asphalt mixture is provided.
The present invention solves its technical matters and takes following technical scheme to realize:
A kind of vibration formation method of drainage asphalt mixture is characterized in that: steps of the method are:
(1). the making of asphalt:
A. the mineral aggregate of all size is put in the baking oven of 105 ℃ ± 5 ℃ and dried 4～6h to constant weight;
B. will dry thick, the fine aggregate of classification, and claim its quality by each specimen Design grating requirement, and mix in a metal dish, breeze is put into separately in little basin; Then put in baking oven and be heated to pitch and mix and stir above approximately 15 ℃ of temperature;
C. the pitch sample that will take by the T0601 of " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ E20-2011), mix and stir temperature with the asphalt that baking oven is heated to stipulate, is no more than 175 ℃;
(2). the mixing asphalt:
A. with the cotton yarn that is moistened with a little butter, clean the punching block collar, punching block and punching block base plate etc., put in 100 ℃ of left and right baking ovens heating 1h standby;
B. the asphalt mixer is preheated in advance to 10 ℃ of left and right of mix temperature;
C. the thickness of heating is gathered materials and is placed in mixer, suitably mix with little scoop; Then add the pitch that needs quantity, stir and make to mix and stir blade and insert in compound and mix and stir 1～1.5min while start mixer; Time-out mixes and stirs, and adds the breeze of heating, continues to mix and stir to till evenly, and makes asphalt remain on mixing and stirring in temperature range of requirement, and total mixing time is 3min;
(3). vibration moulding:
A. adopt chamber internal surface vibration moulding instrument to carry out vibration moulding to compound, wherein, parameter is chosen as: frequency of operation 35Hz, eccentric block angle 120 degree, 4 of the counterweights of getting on the bus, every 6.95Kg; 5 of the counterweights of getting off, every 4.41Kg, time of vibration 2min;
B. from baking oven, taking out the punching block collar, punching block and the punching block base plate of preheating, it is tightly linked, then place it on firm ground, die trial is contained on base, put the little paper of oil absorption of a circle, with scuppit, compound is shoveled in die trial at twice, plug and pound 15 times along periphery with slotting tool or king bolt cutter, centre plugs and pounds 10 times, after last plugs and pounds by the asphalt surface evening;
C. insert thermometer near the compound center, check mixture temperature;
D. after the satisfactory compacting temperature of material temperature degree to be mixed, the round paper that oil absorption of the above's pad is little, be placed on punching block on the punching block base plate of vibratile compacter together with compound, with bolt, punching block base plate and vibrating compacting machine bottom board are fixed together;
E. after vibrating pressure head and aiming at punching block, put down Vib., make to vibrate the compound close contact in pressure head and punching block, check bolt and relevant junction on vibratile compacter, definitely without any article, be placed on vibratile compacter;
F. Vibration on Start-up compacting machine switch, start vibrating compacting, and after vibration, pressure head is vibrated in pull-up, unclamps the bolt of punching block base plate, and punching block is unloaded together with the compound through jolt ramming;
G. after test specimen vibration finishes, with tweezers, take down top paper immediately, measure test specimen from die trial height suitable for reading calculation testing piece height thus with slide calliper rule, and by formula (1), adjust the mixture quality of test specimen, to guarantee highly to meet the requirement of 150mm ± 2mm;
H., the punching block that test specimen will be housed is placed cooling 12-20h to room temperature, puts on ingot stripper and deviates from test specimen, test specimen carefully is placed on the plane of dried and clean, is for experiment.
And in step (1) C step, the pitch sample is petroleum bitumen, mixes and stirs 163 ℃ of temperature with the asphalt that baking oven is heated to stipulate.
And in step (1) C step, the pitch sample is modified bitumen, mixes and stirs 180 ℃ of temperature with the asphalt that baking oven is heated to stipulate.
Advantage of the present invention and good effect are:
The vibration formation method of drainage asphalt mixture, the simulated field compaction technology, gather materials and arrange close to actual road surface well, and test apparatus is simple, convenient, is easy to apply.Adopt the bitumen mixture specimen of preferred parametric vibration moulding, the grating decay is little, every pavement performance all has raising by a relatively large margin, has positive effect serviceable life for extending China's drainage pavement, has broad application prospects and significant economic and social benefit.
Embodiment
Below embodiments of the invention are further described, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of vibration formation method of drainage asphalt mixture is characterized in that: steps of the method are:
(1). the making of asphalt:
A. the mineral aggregate of all size is put in the baking oven of 105 ℃ ± 5 ℃ and dried 4～6h to constant weight;
B. will dry thick, the fine aggregate of classification, and claim its quality by each specimen Design grating requirement, and mix in a metal dish, breeze is put into separately in little basin; Then put in baking oven and be heated to pitch and mix and stir above approximately 15 ℃ of temperature;
C. the pitch sample that will take by the T0601 of " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ E20-2011), mix and stir temperature with the asphalt that baking oven is heated to stipulate, is no more than 175 ℃; When the pitch sample is petroleum bitumen, mix and stir 163 ℃ of temperature with the asphalt that baking oven is heated to stipulate.When the pitch sample is modified bitumen, mix and stir 180 ℃ of temperature with the asphalt that baking oven is heated to stipulate.
(2). the mixing asphalt:
A. with the cotton yarn that is moistened with a little butter, clean the punching block collar, punching block and punching block base plate etc., put in 100 ℃ of left and right baking ovens heating 1h standby;
B. the asphalt mixer is preheated in advance to 10 ℃ of left and right of mix temperature;
C. the thickness of heating is gathered materials and is placed in mixer, suitably mix with little scoop; Then add the pitch that needs quantity, stir and make to mix and stir blade and insert in compound and mix and stir 1～1.5min while start mixer; Time-out mixes and stirs, and adds the breeze of heating, continues to mix and stir to till evenly, and makes asphalt remain on mixing and stirring in temperature range of requirement, and total mixing time is 3min;
(3). vibration moulding:
A. adopt chamber internal surface vibration moulding instrument to carry out vibration moulding to compound, wherein, parameter is chosen as: frequency of operation 30-40Hz, eccentric block angle 120 degree, 4 of the counterweights of getting on the bus, every 6.95Kg; 5 of the counterweights of getting off, every 4.41Kg, time of vibration 2min; Frequency of operation, between 35Hz, can maintain voidage and connectivity gap rate in comparatively rational scope.Therefore, selecting the frequency of operation of drainage asphalt mixture is 35Hz.
B. from baking oven, taking out the punching block collar, punching block and the punching block base plate of preheating, it is tightly linked, then place it on firm ground, die trial is contained on base, put the little paper of oil absorption of a circle, with scuppit, compound is shoveled in die trial at twice, plug and pound 15 times along periphery with slotting tool or king bolt cutter, centre plugs and pounds 10 times, after last plugs and pounds by the asphalt surface evening;
C. insert thermometer near the compound center, check mixture temperature;
D. after the satisfactory compacting temperature of material temperature degree to be mixed, the round paper that oil absorption of the above's pad is little, be placed on punching block on the punching block base plate of vibratile compacter together with compound, with bolt, punching block base plate and vibrating compacting machine bottom board are fixed together;
E. after vibrating pressure head and aiming at punching block, put down Vib., make to vibrate the compound close contact in pressure head and punching block, check bolt and relevant junction on vibratile compacter, definitely without any article, be placed on vibratile compacter;
F. Vibration on Start-up compacting machine switch, start vibrating compacting, and after vibration, pressure head is vibrated in pull-up, unclamps the bolt of punching block base plate, and punching block is unloaded together with the compound through jolt ramming;
G. after test specimen vibration finishes, with tweezers, take down top paper immediately, measure test specimen from die trial height suitable for reading calculation testing piece height thus with slide calliper rule, and by formula (1), adjust the mixture quality of test specimen, to guarantee highly to meet the requirement of 150mm ± 2mm;
H., the punching block that test specimen will be housed is placed cooling 12-20h to room temperature, puts on ingot stripper and deviates from test specimen, and moulding compound test specimen, carefully be placed in test specimen on the plane of dried and clean, is for experiment.
The bulk density of test specimen constantly increases with the prolongation of time of vibration, and voidage constantly reduces with the prolongation of time of vibration.When time of vibration surpassed 120s, the amplitude that the compaction rate of test specimen further increases reduced, and the connectivity gap rate declines to a great extent, and therefore, selects the time of vibration parameter of 2min (120s) as shaping test piece (Φ 150mm*150mm).
The voidage that above-mentioned parameter obtains is 17%, and the connectivity gap rate is 12%, and effective porosity is 70%, can meet target call.
The drain type asphalt compound test specimen of vibration moulding is tested to contrast.
The checking of drainage asphalt mixture vibration moulding test specimen
1. grating decay
Table 1 vibration moulding and Ma Shi hit real front and back grating and change contrast table
By as seen from Table 1, the breakage rate that gathers materials of vibration moulding test specimen is less than Ma Shi and hits reality, connects closely with simple, has solved near the Crushing Problem gathered materials the nominal maximum particle diameter in current asphalt marshall compaction shaping test piece.
2. under different molding modes, the volume index of test specimen gathers
Under the different molding modes of table 2, the volume index of test specimen gathers
By as seen from Table 2, under identical bitumen aggregate ratio, the more two-sided voidage of hitting real 50 shaping test pieces of the voidage of different gradation vibration moulding test specimen has reduced by 1～2% under the best configuration parameter, and the connectivity gap rate also presents similar rule, can meet target call.
Although disclose for the purpose of illustration embodiments of the invention, but it will be appreciated by those skilled in the art that: in the spirit and scope that do not break away from the present invention and claims, various replacements, variation and modification are all possible, therefore, scope of the present invention is not limited to the disclosed content of embodiment.
Claims (3)
1. the vibration formation method of a drainage asphalt mixture is characterized in that: steps of the method are:
(1). the making of asphalt:
A. the mineral aggregate of all size is put in the baking oven of 105 ℃ ± 5 ℃ and dried 4～6h to constant weight;
B. will dry thick, the fine aggregate of classification, and claim its quality by each specimen Design grating requirement, and mix in a metal dish, breeze is put into separately in little basin; Then put in baking oven and be heated to pitch and mix and stir above approximately 15 ℃ of temperature;
C. the pitch sample that will take by the T0601 of " highway engineering pitch and Asphalt Mixture Experiment rules " (JTJ E20-2011), mix and stir temperature with the asphalt that baking oven is heated to stipulate, is no more than 175 ℃;
(2). the mixing asphalt:
A. with the cotton yarn that is moistened with a little butter, clean the punching block collar, punching block and punching block base plate etc., put in 100 ℃ of left and right baking ovens heating 1h standby;
B. the asphalt mixer is preheated in advance to 10 ℃ of left and right of mix temperature;
C. the thickness of heating is gathered materials and is placed in mixer, suitably mix with little scoop; Then add the pitch that needs quantity, stir and make to mix and stir blade and insert in compound and mix and stir 1～1.5min while start mixer; Time-out mixes and stirs, and adds the breeze of heating, continues to mix and stir to till evenly, and makes asphalt remain on mixing and stirring in temperature range of requirement, and total mixing time is 3min;
(3). vibration moulding:
A. adopt chamber internal surface vibration moulding instrument to carry out vibration moulding to compound, wherein, parameter is chosen as: frequency of operation 35Hz, eccentric block angle 120 degree, 4 of the counterweights of getting on the bus, every 6.95Kg; 5 of the counterweights of getting off, every 4.41Kg, time of vibration 2min;
B. from baking oven, taking out the punching block collar, punching block and the punching block base plate of preheating, it is tightly linked, then place it on firm ground, die trial is contained on base, put the little paper of oil absorption of a circle, with scuppit, compound is shoveled in die trial at twice, plug and pound 15 times along periphery with slotting tool or king bolt cutter, centre plugs and pounds 10 times, after last plugs and pounds by the asphalt surface evening;
C. insert thermometer near the compound center, check mixture temperature;
D. after the satisfactory compacting temperature of material temperature degree to be mixed, the round paper that oil absorption of the above's pad is little, be placed on punching block on the punching block base plate of vibratile compacter together with compound, with bolt, punching block base plate and vibrating compacting machine bottom board are fixed together;
E. after vibrating pressure head and aiming at punching block, put down Vib., make to vibrate the compound close contact in pressure head and punching block, check bolt and relevant junction on vibratile compacter, definitely without any article, be placed on vibratile compacter;
F. Vibration on Start-up compacting machine switch, start vibrating compacting, and after vibration, pressure head is vibrated in pull-up, unclamps the bolt of punching block base plate, and punching block is unloaded together with the compound through jolt ramming;
G. after test specimen vibration finishes, with tweezers, take down top paper immediately, measure test specimen from die trial height suitable for reading calculation testing piece height thus with slide calliper rule, and by formula (1), adjust the mixture quality of test specimen, to guarantee highly to meet the requirement of 150mm ± 2mm;
H., the punching block that test specimen will be housed is placed cooling 12-20h to room temperature, puts on ingot stripper and deviates from test specimen, test specimen carefully is placed on the plane of dried and clean, is for experiment.
2. the vibration formation method of drainage asphalt mixture according to claim 1, it is characterized in that: in step (1) C step, the pitch sample is petroleum bitumen, mixes and stirs 163 ℃ of temperature with the asphalt that baking oven is heated to stipulate.
3. the vibration formation method of drainage asphalt mixture according to claim 1, it is characterized in that: in step (1) C step, the pitch sample is modified bitumen, mixes and stirs 180 ℃ of temperature with the asphalt that baking oven is heated to stipulate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102405900A CN103411803A (en) | 2013-06-18 | 2013-06-18 | Vibration molding method of drainage asphalt mixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102405900A CN103411803A (en) | 2013-06-18 | 2013-06-18 | Vibration molding method of drainage asphalt mixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103411803A true CN103411803A (en) | 2013-11-27 |
Family
ID=49604830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102405900A Pending CN103411803A (en) | 2013-06-18 | 2013-06-18 | Vibration molding method of drainage asphalt mixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103411803A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965065A (en) * | 2015-06-23 | 2015-10-07 | 同济大学 | Method for detecting gradation change of base-layer recycled materials on basis of static-pressure molding tests |
| CN105300758A (en) * | 2015-09-24 | 2016-02-03 | 哈尔滨工业大学 | Asphalt mortar molding and measuring devices and testing method of dynamic shear parameters of asphalt mortar |
| CN106053180A (en) * | 2016-08-08 | 2016-10-26 | 山西省交通科学研究院 | Simulation vibrating wheel-grind forming machine for bitumen mixture specimens and specimen manufacture method |
| CN107036877A (en) * | 2016-12-19 | 2017-08-11 | 长安大学 | Laboratory's asphalt raw material early warning type temperature control and drawer type accommodate baking oven |
| CN112033856A (en) * | 2020-07-28 | 2020-12-04 | 中交一公局集团有限公司海外分公司 | Device and method for testing minimum usage amount of cementing material of hot-mix asphalt mixture |
| CN113702136A (en) * | 2021-09-17 | 2021-11-26 | 东南大学 | Asphalt curing ballast bed test piece forming method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165831A (en) * | 1999-12-14 | 2001-06-22 | Kajima Corp | Apparatus and method for manufacturing test piece |
| US20040177702A1 (en) * | 2000-03-23 | 2004-09-16 | Wisconsin Alumni Research Foundation | Apparatus and method for testing material performance |
| CN101250845A (en) * | 2008-02-20 | 2008-08-27 | 山东省交通厅公路局 | Large grain diameter water permeability asphalt mixture novel pavement structure and laying method thereof |
| CN103134712A (en) * | 2013-02-06 | 2013-06-05 | 长安大学 | Vertical vibrating forming method applicable to bituminous mixture test piece with aggregate nominal maximum particle size less than 26.5mm |
-
2013
- 2013-06-18 CN CN2013102405900A patent/CN103411803A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001165831A (en) * | 1999-12-14 | 2001-06-22 | Kajima Corp | Apparatus and method for manufacturing test piece |
| US20040177702A1 (en) * | 2000-03-23 | 2004-09-16 | Wisconsin Alumni Research Foundation | Apparatus and method for testing material performance |
| CN101250845A (en) * | 2008-02-20 | 2008-08-27 | 山东省交通厅公路局 | Large grain diameter water permeability asphalt mixture novel pavement structure and laying method thereof |
| CN103134712A (en) * | 2013-02-06 | 2013-06-05 | 长安大学 | Vertical vibrating forming method applicable to bituminous mixture test piece with aggregate nominal maximum particle size less than 26.5mm |
Non-Patent Citations (2)
| Title |
|---|
| 中华人民共和国行业标准: "《公路工程沥青及沥青混合料试验规程》", 30 November 2011 * |
| 朱强: "基于ATB-30沥青混合料振动成型方法研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965065A (en) * | 2015-06-23 | 2015-10-07 | 同济大学 | Method for detecting gradation change of base-layer recycled materials on basis of static-pressure molding tests |
| CN104965065B (en) * | 2015-06-23 | 2016-06-15 | 同济大学 | A kind of basic unit's reclaimed materials gradation differentials detection method based on hydrostatic profile test |
| CN105300758A (en) * | 2015-09-24 | 2016-02-03 | 哈尔滨工业大学 | Asphalt mortar molding and measuring devices and testing method of dynamic shear parameters of asphalt mortar |
| CN105300758B (en) * | 2015-09-24 | 2018-04-24 | 哈尔滨工业大学 | The test method of asphalt mortar, bituminous mortar shaping, measuring device and its asphalt mortar, bituminous mortar dynamic shearing parameter |
| CN106053180A (en) * | 2016-08-08 | 2016-10-26 | 山西省交通科学研究院 | Simulation vibrating wheel-grind forming machine for bitumen mixture specimens and specimen manufacture method |
| CN106053180B (en) * | 2016-08-08 | 2018-11-20 | 山西省交通科学研究院 | The analog vibration rolling molding machine and test specimen production method of bitumen mixture specimen |
| CN107036877A (en) * | 2016-12-19 | 2017-08-11 | 长安大学 | Laboratory's asphalt raw material early warning type temperature control and drawer type accommodate baking oven |
| CN107036877B (en) * | 2016-12-19 | 2023-07-14 | 长安大学 | Early-warning type temperature control and drawer type accommodating oven for asphalt mixture raw materials in laboratory |
| CN112033856A (en) * | 2020-07-28 | 2020-12-04 | 中交一公局集团有限公司海外分公司 | Device and method for testing minimum usage amount of cementing material of hot-mix asphalt mixture |
| CN112033856B (en) * | 2020-07-28 | 2024-02-02 | 中交一公局集团有限公司 | Minimum usage amount inspection device and method for hot-mix asphalt mixture cementing material |
| CN113702136A (en) * | 2021-09-17 | 2021-11-26 | 东南大学 | Asphalt curing ballast bed test piece forming method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103411803A (en) | Vibration molding method of drainage asphalt mixture | |
| CN104164817B (en) | A kind of method for designing of the heat regeneration asphalt mixture of high RAP ratio | |
| CN101653967A (en) | Crack resistance type cement stabilized macadam proportioning design method based on vibration test method | |
| CN103134712B (en) | Vertical vibrating forming method applicable to bituminous mixture test piece with aggregate nominal maximum particle size less than 26.5mm | |
| CN102019645A (en) | Vibration-molding-based cement stabilized macadam mixing ratio design method | |
| CN102531471A (en) | Emulsified asphalt, mixed material containing same and road surface formed by mixed material | |
| CN107219151A (en) | A kind of test method for determining roadbed soil-stone material maximum dry density | |
| CN106830727B (en) | A kind of bituminous mixture method for mixing CHARACTERISTICS OF TAILINGS SAND | |
| CN108536956A (en) | A kind of mixing proportion design method that building waste is used for asphalt | |
| CN103526665A (en) | Accurate preparation method of emulsified asphalt cold recycled mixture | |
| CN110194612A (en) | A kind of Recycled Asphalt Pavement material and its design method ensureing cryogenic property | |
| CN109111155A (en) | A kind of pervious concrete system and preparation method thereof of building waste preparation | |
| CN103184717A (en) | Method for designing AC-20 asphalt mixture | |
| CN103122603A (en) | Design method of ATB-30 asphalt mixture | |
| CN106554170B (en) | A kind of modified pitch gap gradation asphalt | |
| CN102305849B (en) | Method for evaluating structure type of bituminous mixture based on pavement core sample | |
| CN203295921U (en) | Recycling asphalt blending device | |
| CN105948813A (en) | Foamed warm-mix recycled asphalt mixture and preparation method thereof | |
| CN103147374A (en) | Design method of AC-13 asphalt mixture | |
| CN103162999A (en) | Vertical vibration thermoforming method suitable for bituminous mixture test piece with maximum particle size of aggregate indicated larger than or equal to 26.5mm | |
| CN103146445B (en) | Combustible slurry and preparation method thereof | |
| CN103487369B (en) | Stabilized with inorganic binder is gathered materials the assay method of class mixture structure type | |
| CN110489923A (en) | Plastic strain predictor method under a kind of graded broken stone mixture Repeated Loading | |
| CN101264592A (en) | Light stone grinding block and manufacturing method thereof | |
| CN115641931A (en) | Design method of building waste asphalt mixture mix proportion with high brick-concrete content |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131127 |