CN105675170B - The determination method of kir dry process construction compacting temperature - Google Patents
The determination method of kir dry process construction compacting temperature Download PDFInfo
- Publication number
- CN105675170B CN105675170B CN201610090786.XA CN201610090786A CN105675170B CN 105675170 B CN105675170 B CN 105675170B CN 201610090786 A CN201610090786 A CN 201610090786A CN 105675170 B CN105675170 B CN 105675170B
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- Prior art keywords
- kir
- temperature
- volume
- compacting
- pitch
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Links
- 238000010276 construction Methods 0.000 title claims abstract description 35
- 238000001035 drying Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 238000002474 experimental method Methods 0.000 claims abstract description 8
- 239000010426 asphalt Substances 0.000 claims description 17
- 239000011159 matrix material Substances 0.000 claims description 10
- 239000011435 rock Substances 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 238000004090 dissolution Methods 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 4
- 244000025254 Cannabis sativa Species 0.000 claims 1
- 238000005056 compaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000012790 confirmation Methods 0.000 abstract description 2
- 239000011295 pitch Substances 0.000 description 58
- 239000011521 glass Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
Abstract
The invention discloses a kind of determination method of kir dry process construction compacting temperature, it is main to include obtaining the determination method for compacting temperature of constructing when kir dry process is constructed by testing, this method mainly includes two parts, when kir volume is less than 30% i.e. in modified pitch, it can use and experiment determination directly is carried out to the kir for volume of constructing, when actual volume is higher than 30%, in view of the influence of contained mineral matter in kir composition, construction compacting temperature can be estimated according to the compacting temperature rule under kir low-dosage state.The present invention is capable of the compacting temperature of the determination kir dry process construction of science, is that the confirmation of site operation compacting temperature proposes effective scientific basis, further increases road surface compaction effect, improve the bituminous paving quality of kir dry process construction.
Description
Technical field
The present invention relates to pavement construction technical field, temperature is joined in more particularly to a kind of kir dry process work progress
Several determination methods.
Background technology
The pitch applied in road engineering mainly has Xinjiang kir, Qing Chuan kir, Indonesia's BUTON rock asphalt, Iranian rock
Pitch and Gilsonite rock asphalt etc..Kir is the pitch class thing that oil generates in rock crack by the comprehensive function of nature
Matter, it is made up of pitch and mineral matter, the asphalt component in kir can be dissolved in pitch under the high temperature conditions, and the material is
Development and application is in asphalt roads engineering, to improve the performance on road surface.
The construction technology of kir is broadly divided into wet processing and dry process.Wet processing is by bitumen and matrix
Uniformly miscible (ground or shear history) is made and is used for the technique for producing asphalt after processes of rock asphalt modified asphalt pitch, its
Compacting temperature in work progress can be according to the rule in table 5.2.2-1 or JT/T 860.5-2014 tables 3 in JTG F40-2004
Surely it is determined.
Dry process be kir without with the miscible link of matrix pitch, direct plunge into pitch and mix and stir in pot, with gathering materials
Stir together, the technique to form asphalt is then mixed and stirred with pitch；The technique is currently without national regulation or professional standard
Carry out special regulation or instruction to construction temperature, be usually with the compacting temperature of matrix pitch compound during site operation
Carry out pavement compaction.However, in dry process work progress, according to the difference of transportation range and the difference institute of site operation ability
Since the time needed there is also certain difference, in the case of no special, mixing and stirring to transporting, paving, to rolling compound, institute
The time needed, within this time, the asphalt component in kir, which has, was partially dissolved in asphalt in or so 2 hours
Matrix pitch in so that there is also a certain degree of kir to be modified for asphalt；Because the asphalitine in kir is mixed
Amount is higher, with matrix pitch it is miscible after, the stiffness and compacting temperature of asphalt, and matrix pitch scene can be significantly improved
The compacting temperature of construction is relatively low, if consolidation effect can be reduced by carrying out pavement compaction according to the compacting criteria of matrix pitch merely.
The content of the invention
The technical problem to be solved in the invention is to provide compacting temperature in a kind of kir dry process work progress
Method is determined, is that the confirmation of site operation compacting temperature proposes effective scientific basis, further improves field compaction effect, protect
Demonstrate,prove Pavement Performance.
In order to solve the above technical problems, the technical solution used in the present invention is as follows.
The determination method of kir dry process construction compacting temperature, specifically includes following steps：
Course of dissolution of the kir in pitch when A. being constructed by test simulation dry process, determine that viscosity-temperature is bent
Line, corresponding temperature range is used as the processes of rock asphalt modified asphalt of practice of construction volume during using 0.28Pas ± 0.03Pas
Compacting temperature scope；
B. if construction in more than 30% volume kir when, kir volume be 0~30% in the range of, choose 4
The kir of~6 groups of difference kir volumes, course of dissolution of the kir in pitch during simulation dry process construction and obtain
Modified pitch, determine its compacting temperature respectively, volume-compacting temperature curve drawn, by the pressure in volume-compacting temperature curve
Real temperature is returned, and obtains regression formula；Dry process construction under kir high additive state is determined according to regression formula
Compacting temperature.
The determination method of compacting temperature, step A specifically include following steps in above-mentioned kir dry process construction：
A1. the kir for choosing actual volume in construction is mixed evenly with matrix pitch, the constant temperature in 165 DEG C of baking ovens
2h is kept, the modified pitch of kir is made；
A2. take the modified pitch to carry out 135 DEG C and 175 DEG C of viscosity experiments respectively, viscosity-temperature is drawn according to result of the test
Curve；
A3. according to temperature-viscosity curve, temperature when to take pitch apparent viscosity be (0.28 ± 0.03) Pas is to be modified
The compacting temperature scope of pitch.
The determination method of compacting temperature, step B specifically include following steps in above-mentioned kir dry process construction：
B1. in the range of kir volume is 0~30%, the modified pitch of 6 groups of difference kir volumes is prepared；
B2. modified pitch one is taken to carry out 135 DEG C and 175 DEG C of viscosity experiments respectively to modified pitch six, according to result of the test
Draw temperature-viscosity curve；
B3. according to temperature-viscosity curve, temperature when to take pitch apparent viscosity be (0.28 ± 0.03) Pas is to be modified
The compacting temperature scope of pitch, and draw volume-compacting temperature curve under different kir volume states；
B4. the compacting temperature in volume-compacting temperature curve is returned, obtains regression formula；
B5. the compacting temperature that dry process is constructed under kir high additive state is determined according to regression formula.
It is as follows as a result of above technical scheme, the invention technological progress.
The present invention is capable of the compacting temperature of the determination kir dry process construction of science, is site operation compacting temperature
Confirm to propose effective scientific basis, further increase road surface compaction effect, improve the drip of kir dry process construction
Blue or green pavement quality.
Brief description of the drawings
Fig. 1 is volume-compacting temperature curve map of different kir in the specific embodiment of the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be described in further detail.
The determination method of compacting temperature, main to include obtaining kir by testing in a kind of kir dry process construction
The determination method of construction compacting temperature, this method mainly include two parts, i.e., the rock in modified pitch when dry process is constructed
When pitch volume is less than 30%, it can use and experiment determination directly is carried out to the kir for volume of constructing, when actual volume is higher than
When 30%, it is contemplated that the influence of contained mineral matter in kir composition, can be according to the compacting temperature under kir low-dosage state
Curve estimates construction compacting temperature.
Below by taking A-70 pitches as an example, illustrate during practice of construction, modified pitch compacting temperature determines detailed
Step.
A. in practice of construction, the actual volume of kir determines compacting temperature at 0~30% according to following steps.
A1. the kir for choosing actual volume in construction is mixed evenly with matrix pitch, the constant temperature in 165 DEG C of baking ovens
2h is kept, the modified pitch of kir is made.
A2. take the modified pitch to carry out 135 DEG C and 175 DEG C of viscosity experiments respectively, viscosity-temperature is drawn according to result of the test
Curve.
A3. according to temperature-viscosity curve, temperature when to take pitch apparent viscosity be (0.28 ± 0.03) Pas is to be modified
The compacting temperature scope of pitch.
B. in practice of construction, when the actual volume of kir is higher than 30%, compacting temperature is determined according to following steps.
B1. in the range of kir volume is 0~30%, the modified pitch of 6 groups of difference kir volumes is prepared.
A-70 pitch 1kg are taken, are heated to 165 DEG C, 5% kir, i.e. 50g are mixed, after being stirred with glass bar
Constant temperature 2 hours in 165 DEG C of baking ovens are put into, modified pitch one is made.
A-70 pitch 1kg are taken, are heated to 165 DEG C, 10% kir, i.e. 100g is mixed, is stirred with glass bar
After be put into constant temperature 2 hours in 165 DEG C of baking ovens, modified pitch two is made.
A-70 pitch 1kg are taken, are heated to 165 DEG C, 15% kir, i.e. 150g is mixed, is stirred with glass bar
After be put into constant temperature 2 hours in 165 DEG C of baking ovens, modified pitch three is made.
A-70 pitch 1kg are taken, are heated to 165 DEG C, 20% kir, i.e. 200g is mixed, is stirred with glass bar
After be put into constant temperature 2 hours in 165 DEG C of baking ovens, modified pitch four is made.
A-70 pitch 1kg are taken, are heated to 165 DEG C, 25% kir, i.e. 250g is mixed, is stirred with glass bar
After be put into constant temperature 2 hours in 165 DEG C of baking ovens, modified pitch five is made.
A-70 pitch 1kg are taken, are heated to 165 DEG C, 30% kir, i.e. 300g is mixed, is stirred with glass bar
After be put into constant temperature 2 hours in 165 DEG C of baking ovens, modified pitch six is made.
B2. modified pitch one is taken to carry out 135 DEG C and 175 DEG C of viscosity experiments respectively to modified pitch six, according to result of the test
Draw temperature-viscosity curve.
B3. according to temperature-viscosity curve, temperature when to take pitch apparent viscosity be (0.28 ± 0.03) Pas is to be modified
The compacting temperature of pitch, and draw the compacting temperature curve under different kir volume states.In the present embodiment, from viscosity-temperature
Line of writing music obtain modified pitch one to modified pitch six compacting temperature scope be respectively：146~155 DEG C, 151~160 DEG C,
155~164 DEG C, 158~167 DEG C, 160~169 DEG C, 162~171 DEG C, the volume drawn accordingly-compacting temperature curve such as Fig. 1
Shown, it is volume-compacting temperature lower limit curve that figure intermediate cam shape, which forms curve, and it is on volume-compacting temperature that grid, which forms curve,
Limit curve.
B4. because the drafting of volume-compacting temperature curve is obtained in the case where volume is 0~30% low-dosage state, because
This can be bent according to volume-compacting temperature for low-dosage modified pitch of the kir volume during practice of construction less than 30%
Line directly obtains the specific compacting temperature in kir dry process work progress.And when kir volume is more than 30%, rock
Mineral matter present in pitch is easily suspended in pitch, and viscosity result is impacted, now by volume-compacting temperature curve
Compacting temperature returned, obtaining regression formula is：
Tmax=8.5112ln (a)+141.47 formulas one
Tmin=9.0106ln (a)+130.95 formulas two
In formula：TmaxFor the compacting temperature upper limit, TminFor compacting temperature lower limit, a is kir volume.
B5. the compacting temperature that dry process is constructed under kir high additive state is determined according to regression formula.
Claims (3)
- The determination method of compacting temperature 1. kir dry process is constructed, it is characterised in that specifically include following steps：A. the course of dissolution by test simulation dry process construction kir in pitch, determines temperature-viscosity curve, with The compacting of processes of rock asphalt modified asphalt of the corresponding temperature range as practice of construction volume during 0.28Pas ± 0.03 Pas Temperature range；B. if in construction more than 30% volume kir when, in the range of kir volume is 0 ~ 30%, choose 4 ~ 6 groups it is different The kir of kir volume, course of dissolution of the kir in pitch during simulation dry process construction and the modified drip that obtains Green grass or young crops, its compacting temperature is determined respectively, draw volume-compacting temperature curve, the compacting temperature in volume-compacting temperature curve is entered Row returns, and obtains regression formula；The compacting temperature that dry process is constructed under kir high additive state is determined according to regression formula.
- 2. the determination method of kir dry process construction compacting temperature according to claim 1, it is characterised in that step A specifically includes following steps：A1. the kir for choosing actual volume in construction is mixed evenly with matrix pitch, and constant temperature is kept in 165 DEG C of baking ovens 2h, the modified pitch of kir is made；A2. the modified pitch is taken to carry out 135 DEG C and 175 DEG C of viscosity experiments respectively, it is bent to draw viscosity-temperature according to result of the test Line；A3. according to temperature-viscosity curve, the pitch apparent viscosity is taken to be（0.28±0.03）Temperature during Pas is modified pitch Compacting temperature scope.
- 3. the determination method of kir dry process construction compacting temperature according to claim 1, it is characterised in that step B specifically includes following steps：B1. in the range of kir volume is 0 ~ 30%, the modified pitch of 6 groups of difference kir volumes is prepared；B2. take modified pitch one to carry out 135 DEG C and 175 DEG C of viscosity experiments respectively to modified pitch six, drawn according to result of the test Temperature-viscosity curve；B3. according to temperature-viscosity curve, the pitch apparent viscosity is taken to be（0.28±0.03）Temperature during Pas is modified pitch Compacting temperature scope, and draw volume-compacting temperature curve under different kir volume states；B4. the compacting temperature in volume-compacting temperature curve is returned, obtains regression formula；B5. the compacting temperature that dry process is constructed under kir high additive state is determined according to regression formula.
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| CN201610090786.XA CN105675170B (en) | 2016-02-18 | 2016-02-18 | The determination method of kir dry process construction compacting temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106290108B (en) * | 2016-08-09 | 2019-01-15 | 上海海事大学 | The improved method for determining polymer modified asphalt mixture optimal compaction temperature |
| CN109444206B (en) * | 2018-11-26 | 2020-12-11 | 招商局重庆交通科研设计院有限公司 | Method and device for detecting quality of asphalt pavement |
| CN109765258B (en) * | 2019-01-09 | 2021-07-23 | 上海公路桥梁（集团）有限公司 | Method for monitoring the compaction temperature of asphalt paving |
Citations (3)
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| CN102967392A (en) * | 2012-11-15 | 2013-03-13 | 王黎明 | Method for determining reasonable compacting temperature of modified asphalt mixture |
| CN103292930A (en) * | 2013-07-01 | 2013-09-11 | 广东惠利普路桥信息工程有限公司 | Thermal infrared imager for asphalt road construction detection and detection method |
| CN105181178A (en) * | 2015-10-28 | 2015-12-23 | 苏交科集团股份有限公司 | System and method for detecting paving temperature segregation of asphalt pavement |
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| US8454740B2 (en) * | 2005-09-12 | 2013-06-04 | Alm Holding Co. | Bituminous paving composition and process for bituminous paving |
| DE202012009335U1 (en) * | 2012-09-27 | 2012-12-11 | Moba Ag | Combined ultrasonic distance sensor and infrared temperature sensor |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967392A (en) * | 2012-11-15 | 2013-03-13 | 王黎明 | Method for determining reasonable compacting temperature of modified asphalt mixture |
| CN103292930A (en) * | 2013-07-01 | 2013-09-11 | 广东惠利普路桥信息工程有限公司 | Thermal infrared imager for asphalt road construction detection and detection method |
| CN105181178A (en) * | 2015-10-28 | 2015-12-23 | 苏交科集团股份有限公司 | System and method for detecting paving temperature segregation of asphalt pavement |
Non-Patent Citations (1)
| Title |
|---|
| 添加sasobit温拌沥青混合料的拌和与压实温度确定;吴超凡等;《湖南大学学报（自然科学版）》;20100831;第37卷(第8期);第1-5页 * |
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