CN106501099A - Emulsified asphalt cold in place recycling compound high-temerature creep test method - Google Patents
Emulsified asphalt cold in place recycling compound high-temerature creep test method Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/28—Investigating ductility, e.g. suitability of sheet metal for deep-drawing or spinning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0071—Creep
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/022—Environment of the test
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- G01N2203/0226—High temperature; Heating means
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Abstract
The invention discloses a kind of emulsified asphalt cold in place recycling compound high-temerature creep test method.Temperature field and load stress based on finite element modelling cold-regenerated road surface structure, using the maximum temperature on cold renewal layer top as insulation and test temperature, maximum stress with cold renewal layer top is as finder charge stress, when cold renewal is as middle surface layer be 52 DEG C, 0.66MPa, as during cutting optimal be 38 DEG C, 0.55MPa.Angle-determining room temperature 12h from the index such as most closing to reality road surface core sample voidage, 40 DEG C of Marshall stabilitys, 15 DEG C of cleavage strengths, 60 DEG C of 12h, it is applied to after evaluating construction 7 days voidage and intensity when handing over inspection after the continuous health preservings of room temperature 48h, room temperature 12h, 60 DEG C of 48h, is applied to the intensity for evaluating (after 100 days) after pavement curring completely after the continuous health preservings of room temperature 60h.Pressure head is adopted for upper diameter 100mm, lower diameter 27.8mm, height are the Centered steel double-arc spline of 25mm.
Description
Technical field
Present invention relates particularly to a kind of emulsified asphalt cold in place recycling compound high-temerature creep test method, belongs to road work
Journey technical field.
Background technology
Emulsified asphalt Local Cold Regenerating Technology (Cold in-place recycling, abbreviation CIR) is by old asphalt pavement
Milling material adds emulsified asphalt, cement, water, virgin material etc. carries out a technology of regeneration, is being used for China's arterial highway road
In face, the behaviour in service of cutting optimal is good, for being best understood from the material character of Cold Recycled Mixture with Emulsified Asphalt, need to be high to which
Warm anti-rut behavior is scientifically evaluated.Test method currently used for cold regeneration mix high-temperature behavior evaluation mainly has 40
DEG C Marshall Test, wheel tracking test etc..Marshall Test is simple to operation, but can not rightly assess the shearing resistance of asphalt
Intensity, not good with the degree of association of actual pavement track；Though wheel tracking test can intuitively react the rutting resistance of ground surface material,
Easily over-pressed when test specimen makes, and result of the test variability is larger.NCHRP projects in the U.S. recommend to try using dynamic creep
Test come the ability of the resistance to permanent deformation for evaluating asphalt, but the test need to use rotary compactor diameter 150mm height 180mm
Cylinder test specimen, then overall test specimen is made as diameter 100mm, the cylinder of height 150mm by the operation such as core, cutting
Body test specimen, but cold regeneration mix early strength is very low, is susceptible to slump during the test specimen of forming diameter 150mm height 180mm
Destruction, and (60 DEG C, 0.7MPa) destructive process is very fast under standard test conditionss, it is impossible to obtain flow number etc. exactly and evaluate
Index.This method is the characteristics of early strength based on cold regeneration mix is low, in conjunction with its as cutting optimal in road surface reality
Suffered temperature and load, by finite element software analog temperature field and load stress, design a kind of new emulsifying that is exclusively used in and drip
The high-temerature creep test method of blue or green cold in place recycling compound, the high temperature for studying emulsified asphalt cold in place recycling compound are compacted
Become characteristic, improve cold regeneration mix resistance to permanent deformation Performance Evaluation System, meanwhile, it is also the choosing in cold renewal engineering to material
Offer technical support is provided, and prevents from the initial stage being laid in cold-regenerated road surface and rut disease occurs in mid-term.
Content of the invention
Technical problem：The invention aims to overcoming existing evaluation emulsified asphalt cold in place recycling compound high temperature steady
The deficiency of the Experimental Method in Laboratory of qualitative energy, has designed and developed a kind of temperature suffered by actual road surface and traffic load of can simulating
Emulsified asphalt cold in place recycling compound high-temerature creep test method, the high temperature for studying Cold Recycled Mixture with Emulsified Asphalt are compacted
Become characteristic.The test method has directive significance to China's arterial highway medium-capital overhauling decision-making work.
Technical scheme：The high-temerature creep test method of the emulsified asphalt cold in place recycling compound of the present invention, mainly includes
Following steps：
1) temperature field based on finite element modelling cold renewal layer and load stress
Simulate temperature field and the load stress of actual pavement structure respectively using two dimensional model and threedimensional model, calculate summer
High temperatures typical maximum temperature in a few days at (38 DEG C of daily maximum temperature) cold renewal layer top, corresponding in 52 DEG C of surface layer temperature, cutting optimal
Load stress at 38 DEG C of temperature, and the lower cold renewal layer top of standard axle load effect, corresponding in surface layer be 0.66MPa, cutting optimal is
0.55MPa, so that it is determined that the insulation of emulsified asphalt cold in place recycling compound high-temerature creep test and test temperature, load should
Power, when cold renewal is as middle surface layer be 52 DEG C, 0.66MPa, as during cutting optimal be 38 DEG C, 0.55MPa.
2) determine health-preserving condition
Determine room temperature 12h, 60 DEG C of 12h, be applied to after the continuous health preservings of room temperature 48h after evaluating construction 7 days when handing over inspection
Voidage and intensity, room temperature 12h, 60 DEG C of 48h, are applied to after the continuous health preservings of room temperature 60h and evaluate (100 days after pavement curring completely
Intensity afterwards)；The method most voidage of the closing to reality cold renewal engineering road surface core sample at 7 days and 100 days, 40 DEG C of Marshalls
Degree of stability, 15 DEG C of cleavage strengths, are easy to constructing check and different cold-regenerated road surface structure mechanical properties are evaluated.
3) specimen molding and pressure head size
Using the cylinder test specimen of 50 forming diameter 100mm height 120mm of gyratory compaction, by cutting operation, remove
With each 10mm in bottom at the top of test specimen, diameter 100mm, the cylinder test specimen of height 100mm is made as；Determined by finite element modelling
Pressure head size is 27.8mm；Pressure head is made up of two parts, is discoid, a diameter of 100mm of seaming chuck, and thickness is 25mm, under
Pressure head diameter 27.8mm, thickness are 25mm, be vertically connected with integral, select steel molding, as shown in Figure 1.The pressure head can be with
Load stress is uniformly transferred, and can the distribution of simulated roadway actual stress；
4) high-temerature creep test：Three parallel test specimens are chosen, remaining surface smears insulating layer material (Beijing in addition to upper surface
Will contains prestige China ZS-1 type thermostable heat-isolating coatings), test specimen needs in 52 DEG C (cold renewal is used as middle surface layers) or 38 DEG C (cold again
Raw as cutting optimal) calorstat insulation more than 4h, pressure head is placed on test specimen, in the alignment test specimen upper surface of push-down head center
The heart, is circulated loading afterwards, as shown in Fig. 2 each time the cycle of CYCLIC LOADING be 1s, 0.1s load, 0.9s unload, load
Waveform is half-sine wave, and when cold renewal is as middle surface layer, load peak value σ is 0.66MPa, as load peak value σ during cutting optimal is
0.55MPa.Curve of the vertical strain of process of the test record asphalt with loading number of times change, as shown in Figure 3.Test is eventually
Only condition be accumulation microstrain reach 100000 or the creep curve of asphalt substantially enter the phase III and (should accelerate
Fast build phase).The flow number error of three tests should be controlled within 30 times, otherwise molding should be doed for supplement until meeting again
Till requirement.
5) interpretation of result：Emulsified asphalt cold in place recycling compound high-temerature creep test method, can obtain cold renewal and mix
The creep curve of material high-temerature creep test is closed, is analysed in depth and can be obtained flow number of the cold regeneration mix under which, maximum
Microstrain and the index such as average strain rate and flow number parameter.
Beneficial effect：Compared with prior art, the test method of present invention design has taken into full account that emulsified asphalt is cold on the spot
The molding of regenerating mixture and impact of the Curing Method to its intensity, in conjunction with ambient temperature conditions and stress in actual road surface
Feature, obtained experimental result discrimination are high, and reliable and stable.The test method is conducive to mixing emulsified asphalt cold in place recycling
The research of material high-temerature creep mechanism, selects to provide help to material in cold renewal engineering, to China's arterial highway medium-capital overhauling decision-making
Work has directive significance.
Description of the drawings
The present invention will be further described with reference to the accompanying drawings and detailed description：
Fig. 1 is the pressure head mould schematic diagram of the present invention,
Fig. 2 is the Loaded contact analysis schematic diagram of the present invention,
Fig. 3 is curve synoptic diagram of the vertical strain with loading number of times change,
Fig. 4 is the emulsified asphalt cold in place recycling high-temerature creep test method flow chart of the present invention,
Fig. 5 is the pavement structure schematic diagram of the present invention.
Specific embodiment
The emulsified asphalt cold in place recycling compound high-temerature creep test method of the present invention is just applied to measure emulsified asphalt
Ground mechanical property of the cold regeneration mix under actual temperature and load action, in arterial highway cold renewal maintenance project
Suitable material is selected, and also compound mechanical index evaluation can be carried out to the cold-regenerated road surface for having built up.The loading speed for preferably adopting
Rate is loaded for 0.1s, and 0.9s is unloaded.
(1) test method principle
The emulsified asphalt cold in place recycling compound high-temerature creep test method of the present invention is combined with finite element modelling and obtains
The cold regeneration mix dynamic creep assay device of the road actual temperature that takes and loading condition, choose suitable experimental condition with
And test index, realize the room of the High-Temperature Creep Performance to Cold Recycled Mixture with Emulsified Asphalt under actual temperature and the effect of axle load
Interior simulation.Using the climatic data of different regions, according to the characteristics of different engineerings, can flexibly change the loading of creep test
Temperature and stress level, so that realize that Different climate area, different layers position cold renewal engineering are provided and more meet actual material
The evaluation and prediction of high temperature creep property.
(2) test method prepares
(1) experimental condition determines：
The Cold Recycled Mixture with Emulsified Asphalt high-temerature creep test can be completed in UTM universal testing machines, and testing machine is needed
The test temperature of requirement and the compression load of fixed frequency can be provided, and record the accumulation microstrain in process of the test-
Effect frequency curve.Test through finite element modelling, compare the emulsified asphalt cold in place recycling mixing under different pressure head sizes
Material high-temerature creep result of the test, finally determines that the experimental condition of the Cold Recycled Mixture with Emulsified Asphalt high-temerature creep test is：Often
Temperature 12 hours, 60 DEG C 48 hours, room temperature tested after 60 hours；Pressure head is diameter 27.8cm, and test loading frequency is 1Hz,
That is 0.1s is loaded, and 0.9s is unloaded.Under this kind of experimental condition, the test of Cold Recycled Mixture with Emulsified Asphalt high-temerature creep more can be true
The high-temerature creep feature of ground reflection cold regeneration mix.
(2) equipment needed thereby is tested：
The test of emulsified asphalt cold in place recycling compound high-temerature creep is needed using asphalt dynamic creep test clamp
Tool is carried out in UTM universal testing machines.UTM universal testing machines are required to the pressure for providing the test temperature and fixed frequency for requiring
Contracting load, and record the microstrain of the accumulation in process of the test-effect frequency curve.(3) test method step
Emulsified asphalt cold in place recycling compound high-temerature creep test method mainly includes：Simulated roadway temperature field, determination
Load stress level, choose suitable Curing Method, determine pressure head size, specimen molding, high-temerature creep test and experimental result
Analysis, as shown in Figure 4.The main experimental step of emulsified asphalt cold in place recycling compound high-temerature creep is as follows：
Step one：Obtain pavement temperature field
Using two-dimentional road surface model simulation cold-regenerated road surface temperature field, by taking the pavement structure of Fig. 5 as an example, concrete calculating parameter
As shown in table 1.Choose Jiangsu Province somewhere summer typical climatic data to be calculated, including day solar radiation total amount, day highest
The data such as the lowest temperature, effective sunshine time, per day wind speed, obtain at the 4cm of below cold renewal layer top position i.e. road surface most
High-temperature is 52 DEG C.
1 models for temperature field calculating parameter of table
| Material type | Pyroconductivity (J/m h DEG C) | Specific heat capacity (J/kg DEG C) | Density (kg/m3) |
| Asphalt surface course | 4680 | 924.9 | 2300 |
| Cold regeneration mix | 3160 | 960 | 2180 |
| Water-stable gravel | 5616 | 911.7 | 2200 |
| Lime-soil subbase | 5148 | 942.9 | 2100 |
| Soil matrix | 5616 | 1040 | 1800 |
Step 2：Determine load stress level
Using three-dimensional pavement modeling cold-regenerated road surface load stress field, concrete test parameterss are as shown in table 2, wherein respectively
Layer position calculating parameter be in step one calculate at a temperature of corresponding data.Draw the lower horizontal direction of two-wheel wheel load effect
Direct stress scattergram, it is 0.66MPa to obtain maximum (normal) stress at the 4cm of below cold renewal layer top position i.e. road surface.
2 load stress model calculating parameter of table
| Material type | Elastic modelling quantity (MPa) | Poisson's ratio |
| SMA-13 | 527 | 0.35 |
| Cold regeneration mix | 400 | 0.3 |
| SUP-25 | 587 | 0.3 |
| Water-stable gravel | 1500 | 0.35 |
| Lime-soil subbase | 500 | 0.25 |
| Soil matrix | 40 | 0.4 |
Step 3：Shaping test piece
Using the cylinder test specimen of rotary compactor forming diameter 100mm height 120mm, by cutting operation, examination is removed
With each 10mm in bottom at the top of part, diameter 100mm, the cylinder test specimen of height 100mm is made as, it is ensured that test specimen upper and lower surface is mutual
Parallel, make 3 parallel test specimens and be used for carrying out high-temerature creep test.Cutting is carried out after the completion of health preserving.
Step 4：Test specimen health preserving
For verifying the Long-Term Properties of the pavement structure, the Curing Method is selected to be：Room temperature 12 hours, 60 DEG C 48 hours,
Room temperature carried out high-temerature creep test after 60 hours.
Step 5：Pressure head makes
Test pressure head is made up of two parts, is discoid, is vertically connected with integral.The a diameter of 100mm of seaming chuck is thick
Spend for 25mm, for transmitting the stress of press rods, and ensure can to apply push-down head even distributed force, push-down head diameter 27.8mm,
Thickness is 25mm, should select steel molding, it is desirable to which pressure head deforms in the range of test temperature<0.001%, and have more high-strength
Degree, deforms in the range of finder charge<0.001%.
Step 6：High-temerature creep is tested
The test of Cold Recycled Mixture with Emulsified Asphalt high-temerature creep can be carried out in UTM universal testing machines.Before experiment starts,
Test specimen 1,2,3 after by cutting is applied in addition to upper surface spreads insulating layer material, is incubated and is no less than in 50 DEG C of Tempeerature-constant air case
4h, till test specimen internal temperature reaches test temperature ± 0.5 DEG C, keeps at a distance no less than 20mm between test specimen during insulation.
The parameters of testing machine are set so that the temperature of the environment couveuse of testing machine reaches 50 DEG C ± 0.5 DEG C, the compression of testing machine
Loading frequency is 1Hz, and half-sine wave is loaded, and wherein 0.1s is loaded, and 0.9s is unloaded, and crest value is 0.66MPa.By monitor and lotus
Carry and displacement transducer connection, start testing machine, the vertical strain of process of the test record asphalt is with loading number of times change
Curve.Test end condition is that vertical strain reaches 100000 μ ε or the creep curve of asphalt substantially enters the 3rd
Stage (strains Fast growth phase).Three times test flow number error should control within 30 times, otherwise should again into
Type is doed for supplement till requirement is met.
Step 7：Interpretation of result
According to the result of the test of monitor record, it is possible to obtain the creep of emulsified asphalt cold in place recycling high-temerature creep test
Curve, analyses in depth the flow number that creep curve obtains emulsified asphalt cold in place recycling compound, maximum microstrain and average
The index such as strain rate and flow number parameter.
The test method can apply to the research to emulsified asphalt cold in place recycling compound high-temerature creep mechanism, to cold
In reengineer, material selects to provide help, and there is directive significance to China's arterial highway medium-capital overhauling decision-making work.
Claims (1)
1. a kind of emulsified asphalt cold in place recycling compound high-temerature creep test method, it is characterised in that the method includes following several
Individual aspect：
1) temperature field based on finite element modelling cold renewal layer and load stress
Simulate temperature field and the load stress of actual pavement structure respectively using two dimensional model and threedimensional model, calculate summer typical case
High temperature maximum temperature in a few days at cold renewal layer top, corresponding in 52 DEG C of surface layer temperature, 38 DEG C of cutting optimal temperature, and standard axle load makees
With the load stress at lower cold renewal layer top, corresponding middle surface layer is 0.66MPa, and cutting optimal is 0.55MPa, so that it is determined that emulsifying drip
The insulation of blue or green cold in place recycling compound high-temerature creep test and test temperature, load stress；
2) determine health-preserving condition
Determine room temperature 12h, 60 DEG C of 12h, be applied to after evaluating construction 7 days space when handing over inspection after the continuous health preservings of room temperature 48h
Rate and intensity, room temperature 12h, 60 DEG C of 48h, are applied to after the continuous health preservings of room temperature 60h and to evaluate pavement curring completely afterwards after i.e. 100 days
Intensity；The method most voidage of the closing to reality cold renewal engineering road surface core sample at 7 days and 100 days, 40 DEG C of Marshalls are stable
Degree, 15 DEG C of cleavage strengths, evaluate for constructing check and to different cold-regenerated road surface structure mechanical properties；
3) specimen molding and pressure head size
Using the cylinder test specimen of 50 forming diameter 100mm height 120mm of gyratory compaction, by cutting operation, test specimen is removed
Top and each 10mm in bottom, are made as diameter 100mm, the cylinder test specimen of height 100mm；Pressure head is determined by finite element modelling
Size is 27.8mm；Pressure head is made up of two parts, is discoid, a diameter of 100mm of seaming chuck, and thickness is 25mm, push-down head
Diameter 27.8mm, thickness are 25mm, be vertically connected with integral, select steel molding；The pressure head can uniformly transfer load should
Power, and can the distribution of simulated roadway actual stress；
4) high-temerature creep test
Three parallel test specimens are chosen, remaining surface smears insulating layer material in addition to upper surface, test specimen is needed in correspondingly middle surface layer temperature
Calorstat insulation more than the 4h of 38 DEG C of 52 DEG C of degree or cutting optimal temperature, pressure head is placed on test specimen, the alignment examination of push-down head center
Part upper surface center, is circulated loading afterwards, each time the cycle of CYCLIC LOADING be 1s, 0.1s load, 0.9s unload, load
Waveform is half-sine wave, and when cold renewal is as middle surface layer, load peak value is 0.66MPa, as load peak value during cutting optimal is
0.55MPa；Curve of the vertical strain of process of the test record asphalt with loading number of times change；Test end condition is tired
Product microstrain reach 100000 or the creep curve of asphalt substantially enter the phase III and strain Fast growth phase；
The flow number error of three tests should be controlled within 10%, otherwise molding should be doed for supplement till requirement is met again.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631922A (en) * | 2017-10-19 | 2018-01-26 | 长安大学 | A kind of cold recycled asphalt mixture pressure Vapour-bath apparatus |
| CN108572249A (en) * | 2018-05-07 | 2018-09-25 | 北京建筑大学 | A kind of evaluation method of the cold recycled asphalt mixture performance of solvent pitch |
| CN108627536A (en) * | 2018-04-04 | 2018-10-09 | 长安大学 | A kind of cast-type conductive asphalt concrete conduction thermal effect predictor method |
| CN113237777A (en) * | 2021-06-11 | 2021-08-10 | 山西太钢不锈钢股份有限公司 | Method for pre-evaluating post-welding flaring performance of plate for welded pipe |
| CN116296697A (en) * | 2023-05-18 | 2023-06-23 | 华运通达科技集团有限公司 | Cold mix asphalt mixture forming method, measuring method, system and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007005966A1 (en) * | 2005-07-05 | 2007-01-11 | Ohio University | Gravity flowmeter for materials analysis |
| CN101135619A (en) * | 2007-07-13 | 2008-03-05 | 东南大学 | Asphalt concrete elevated temperature property testing method |
| CN102519812A (en) * | 2011-12-16 | 2012-06-27 | 长沙理工大学 | Method for evaluating high-temperature stability of asphalt pavement structure or asphalt mixture |
| CN103115825A (en) * | 2013-01-17 | 2013-05-22 | 东南大学 | Asphalt surface course structure indoor environment simulation and high-temperature deformation test method |
-
2016
- 2016-09-29 CN CN201610866415.6A patent/CN106501099A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007005966A1 (en) * | 2005-07-05 | 2007-01-11 | Ohio University | Gravity flowmeter for materials analysis |
| CN101135619A (en) * | 2007-07-13 | 2008-03-05 | 东南大学 | Asphalt concrete elevated temperature property testing method |
| CN102519812A (en) * | 2011-12-16 | 2012-06-27 | 长沙理工大学 | Method for evaluating high-temperature stability of asphalt pavement structure or asphalt mixture |
| CN103115825A (en) * | 2013-01-17 | 2013-05-22 | 东南大学 | Asphalt surface course structure indoor environment simulation and high-temperature deformation test method |
Non-Patent Citations (3)
| Title |
|---|
| 毕玉峰等: "沥青混合料抗剪试验方法研究", 《同济大学学报（自然科学版）》 * |
| 祁峰: "基于重复加载蠕变实验的沥青混合料高温稳定性能研究", 《交通标准化》 * |
| 陈聪: "沥青路面基层冷再生技术研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107631922A (en) * | 2017-10-19 | 2018-01-26 | 长安大学 | A kind of cold recycled asphalt mixture pressure Vapour-bath apparatus |
| CN107631922B (en) * | 2017-10-19 | 2024-02-27 | 长安大学 | Cold regeneration bituminous mixture pressure health preserving case |
| CN108627536A (en) * | 2018-04-04 | 2018-10-09 | 长安大学 | A kind of cast-type conductive asphalt concrete conduction thermal effect predictor method |
| CN108627536B (en) * | 2018-04-04 | 2020-06-16 | 长安大学 | Method for estimating conduction heat effect of cast conductive asphalt concrete |
| CN108572249A (en) * | 2018-05-07 | 2018-09-25 | 北京建筑大学 | A kind of evaluation method of the cold recycled asphalt mixture performance of solvent pitch |
| CN113237777A (en) * | 2021-06-11 | 2021-08-10 | 山西太钢不锈钢股份有限公司 | Method for pre-evaluating post-welding flaring performance of plate for welded pipe |
| CN116296697A (en) * | 2023-05-18 | 2023-06-23 | 华运通达科技集团有限公司 | Cold mix asphalt mixture forming method, measuring method, system and application |
| CN116296697B (en) * | 2023-05-18 | 2023-09-05 | 华运通达科技集团有限公司 | Cold mix asphalt mixture forming method, measuring method, system and application |
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Application publication date: 20170315 |