CN108982822A - The equivalent simple aging testing method with RTFO or PAV aging effect - Google Patents
The equivalent simple aging testing method with RTFO or PAV aging effect Download PDFInfo
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- CN108982822A CN108982822A CN201810885501.0A CN201810885501A CN108982822A CN 108982822 A CN108982822 A CN 108982822A CN 201810885501 A CN201810885501 A CN 201810885501A CN 108982822 A CN108982822 A CN 108982822A
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- breadboard
- pav
- pitch
- equivalent
- rtfo
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- 230000032683 aging Effects 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 230000003679 aging effect Effects 0.000 title claims abstract description 24
- 230000007774 longterm Effects 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 11
- 238000004321 preservation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 9
- 239000010426 asphalt Substances 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 238000010998 test method Methods 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 2
- 238000003483 aging Methods 0.000 description 14
- 239000010408 film Substances 0.000 description 10
- 238000004088 simulation Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 101100202447 Drosophila melanogaster sav gene Proteins 0.000 description 1
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The equivalent simple aging testing method with RTFO or PAV aging effect.RTFO(163 DEG C at present, 85 minutes) and PAV(100 DEG C, 20 hours) test is still to simulate the main indoor test method of ageing of asphalt, but RTFO and PAV instrument price is expensive (especially import instrument).The method of the present invention includes the breadboard and baking oven of rectangle, there are three rectangle card slots for the breadboard tool, pitch to be tested uniformly paves among three rectangle card slots, to form the film of 300 μ m thicks, 50 minutes will be kept the temperature under the conditions of breadboard in an oven 150 DEG C, so that the variation for testing pitch generation is equivalent to the short ageing effect of RTFO.The present invention is applied to the simple degradation of pitch.
Description
Technical field:
The present invention relates to a kind of and equivalent simple aging testing methods of RTFO or PAV aging effect.
Background technique:
The oxidation age-hardening that asphalt is occurred in construction and process of deployment, and the use process in hot-mix surface
In, the performance measurement of road pavement has a great impact, to influence its durability.This age-hardening pair is simulated in the lab
It is most important in specification of the exploitation based on performance.
SHRP plan is proposed to be tried using rotary thin film in drying oven (Rolling Thin Film Oven, hereinafter referred to as RTFO)
It tests to simulate the short ageing that pitch is undergone during pavement construction, uses pressure aging vessel PAV C Pressurized
Aging Vessel, hereinafter referred to as PAV) test the long-term ageing for undergo in simulated roadway use process.RTFO(163 at present
DEG C, 85 minutes) and (100 DEG C, 20 hours) of PAV test be still simulate ageing of asphalt main indoor test method.In recent years
Come, with the large-scale application of modified pitch, RTFO test gradually shows some problems, and mainly certain modified pitch exist
It is hardly formed film in RTFO container, and is easy to overflow outside bottle during testing, although these problems can be tested by improving
Temperature adds a degree of improvement of rod iron progress；In addition, many scholars have been found that the Aging simulation of RTFO+PAV with
The ageing process that pitch is undergone on practical road surface has larger gap.For example, Qin etc. passes through degradation and outdoor in pitch chamber
The extracting of ground surface material compares discovery, and the degree of aging of RTFO+PAV is equivalent to pavement usage 8 years aging water of 75-mm thickness
Flat, this result and the result of study under other different regions, Different climate are almost the same.
Summary of the invention:
In order to overcome the above problem, the object of the present invention is to provide a kind of and equivalent simple agings of RTFO or PAV aging effect
Test method.
Above-mentioned purpose is realized by following technical scheme:
A kind of simple aging testing method being equivalent to RTFO short ageing effect, composition include: breadboard and the baking of rectangle
Case, there are three rectangle card slot, pitch to be tested uniformly paves among three rectangle card slots the breadboard tool, thus
The film for forming 300 μ m thicks will keep the temperature 50 minutes under the conditions of breadboard in an oven 150 DEG C, to test pitch generation
Variation is equivalent to the short ageing effect of RTFO.
A kind of simple aging testing method being equivalent to PAV long-term ageing effect, composition include: rectangle breadboard and
Baking oven, there are three rectangle card slot, pitch to be tested uniformly paves among three rectangle card slots the breadboard tool, from
And the film of 300 μ m thicks is formed, 50 minutes will be kept the temperature under the conditions of breadboard in an oven 150 DEG C, then shifts breadboard
It is kept for 8 hours to 100 DEG C of pressure aging vessel PAVs, so that the variation for testing pitch generation is equivalent to the long-term ageing effect of PAV.
A kind of simple aging testing method being equivalent to PAV long-term ageing effect, composition include: rectangle breadboard and
Baking oven, there are three rectangle card slot, pitch to be tested uniformly paves among three rectangle card slots the breadboard tool, from
And the film of 300 μ m thicks is formed, 50 minutes will be kept the temperature under the conditions of breadboard in an oven 150 DEG C, is then drying breadboard
Continue heat preservation 40 hours in case under the conditions of 100 DEG C, so that the variation for testing pitch generation is equivalent to the long-term ageing effect of PAV.
Beneficial effects of the present invention:
Simple degradation (Simple Aging Test, hereinafter referred to as SAT) of the invention carries out the indoor Aging simulation of pitch
SAT breadboard forms the thin of 300 μ m thicks among three rectangle card slots as shown in Figure 1, pitch uniformly paves in test
Then film carries out Aging simulation according to process shown in Fig. 3.50 are kept the temperature under the conditions of 150 DEG C in a conventional oven using SAT breadboard
The minute available short ageing effect for being equivalent to RTFO.The long-term ageing time can be contracted by being then transferred in 100 DEG C of PAV
It is as short as 8 hours;If still carrying out long-term ageing using a conventional oven, 40 hours are kept the temperature under the conditions of 100 DEG C can reach and be equivalent to PAV
Long-term ageing effect.Although 40 hours time time-consumings are slightly long, only need an a conventional oven that the short of pitch can be completed
Phase aging and long-term ageing still have very high use value.
SAT of the present invention tests simple, efficient advantage and makes it have wide application prospect, such as to modified pitch and warm mix
The Aging simulation etc. of pitch is expected to that RTFO+PAV test replaced to become more popular ageing of asphalt laboratory test side from now on
Method.
SAT ageing of asphalt simulated experiment of the present invention, to simulate pitch long-term ageing, compared with PAV, for equipment requirement compared with
It is low, cancel the process for accelerating ageing of asphalt by pressure.The pitch thickness of this SAT using 3mm are tested as film.
Invention describes a kind of film oxidation degradation newly developed, result and standard thin film oven (RTFO) and
Test of the pressure aging vessel PAV (PAV) on pitch is suitable.
Traditional RTFO and PAV instrument price is expensive (especially import instrument), and SAT test of the invention only needs one
The mold of a routine test baking oven and this customization, it is cheap, it is easy purchase, is easy to promote, has expanded asphalt test inspection
Survey and Research Thinking.
Detailed description of the invention:
Attached drawing 1 is the structural schematic diagram of breadboard of the present invention.
Attached drawing 2 is another structural schematic diagram of breadboard of the present invention.
Attached drawing 3 is the flow chart of simple degradation of the invention.
Specific embodiment:
Embodiment 1:
A kind of simple aging testing method being equivalent to RTFO short ageing effect, composition include: breadboard and the baking of rectangle
Case, there are three rectangle card slot, pitch to be tested uniformly paves among three rectangle card slots the breadboard tool, thus
The film for forming 300 μ m thicks will keep the temperature 50 minutes under the conditions of breadboard in an oven 150 DEG C, to test pitch generation
Variation is equivalent to the short ageing effect of RTFO.
Embodiment 2:
A kind of simple aging testing method being equivalent to RTFO long-term ageing effect, composition include: breadboard and the baking of rectangle
Case, there are three rectangle card slot, pitch to be tested uniformly paves among three rectangle card slots the breadboard tool, thus
The film for forming 300 μ m thicks will keep the temperature 50 minutes under the conditions of breadboard in an oven 150 DEG C, then be transferred to breadboard
100 DEG C of pressure aging vessel PAV is kept for 8 hours, so that the variation for testing pitch generation is equivalent to the long-term ageing effect of RTFO.
Embodiment 3:
A kind of simple aging testing method being equivalent to PAV long-term ageing effect, composition include: breadboard and the baking of rectangle
Case, there are three rectangle card slot, pitch to be tested uniformly paves among three rectangle card slots the breadboard tool, thus
The film for forming 300 μ m thicks will keep the temperature 50 minutes under the conditions of breadboard in an oven 150 DEG C, then by breadboard in baking oven
In continue heat preservation 40 hours under the conditions of 100 DEG C, so that the variation for testing pitch generation is equivalent to the long-term ageing effect of PAV.
Embodiment 4:
Above-mentioned simple aging testing method, wherein used by breadboard, material be stainless steel, quality: 6135g, long 40cm,
Wide 25cm, high 1cm, it is inboard: long 20cm, wide 10cm, deep 0.5cm.
Claims (3)
1. a kind of simple aging testing method for being equivalent to RTFO short ageing effect, composition include: rectangle breadboard and
Baking oven, it is characterized in that: the breadboard tool is there are three rectangle card slot, pitch to be tested uniformly paves in three rectangular cards
Among slot, to form the film of 300 μ m thicks, 50 minutes will be kept the temperature under the conditions of breadboard in an oven 150 DEG C, to test
The variation that pitch generates is equivalent to the short ageing effect of RTFO.
2. a kind of simple aging testing method for being equivalent to PAV long-term ageing effect, composition includes: breadboard and the baking of rectangle
Case, it is characterized in that: the breadboard tool is there are three rectangle card slot, pitch to be tested uniformly paves in three rectangle card slots
Among, to form the film of 300 μ m thicks, 50 minutes will be kept the temperature under the conditions of breadboard in an oven 150 DEG C, it then will test
The pressure aging vessel PAV that plate is transferred to 100 DEG C is kept for 8 hours, so that the variation for testing pitch generation is equivalent to the long-term old of PAV
Change effect.
3. a kind of simple aging testing method for being equivalent to PAV long-term ageing effect, composition includes: breadboard and the baking of rectangle
Case, it is characterized in that: the breadboard tool is there are three rectangle card slot, pitch to be tested uniformly paves in three rectangle card slots
Among, to form the film of 300 μ m thicks, 50 minutes will be kept the temperature under the conditions of breadboard in an oven 150 DEG C, it then will test
Plate continues heat preservation 40 hours under the conditions of 100 DEG C in an oven, so that the variation for testing pitch generation is equivalent to the long-term ageing of PAV
Effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885501.0A CN108982822A (en) | 2018-08-06 | 2018-08-06 | The equivalent simple aging testing method with RTFO or PAV aging effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810885501.0A CN108982822A (en) | 2018-08-06 | 2018-08-06 | The equivalent simple aging testing method with RTFO or PAV aging effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108982822A true CN108982822A (en) | 2018-12-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810885501.0A Pending CN108982822A (en) | 2018-08-06 | 2018-08-06 | The equivalent simple aging testing method with RTFO or PAV aging effect |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735824A (en) * | 2012-06-20 | 2012-10-17 | 江苏山水建设集团有限公司 | Asphalt mixture aging test method |
| CN102876055A (en) * | 2011-07-12 | 2013-01-16 | 赵金叶 | Sealant for pavement cracks |
| CN205999737U (en) * | 2016-08-31 | 2017-03-08 | 龙建路桥股份有限公司 | Deck installation structure |
| CN206787891U (en) * | 2016-12-26 | 2017-12-22 | 中国石油化工股份有限公司 | A kind of road asphalt degradation mould |
| US20180171146A1 (en) * | 2016-12-19 | 2018-06-21 | Blacklidge Emulsions Inc. | Age-resistant asphalt compositions and methods |
-
2018
- 2018-08-06 CN CN201810885501.0A patent/CN108982822A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102876055A (en) * | 2011-07-12 | 2013-01-16 | 赵金叶 | Sealant for pavement cracks |
| CN102735824A (en) * | 2012-06-20 | 2012-10-17 | 江苏山水建设集团有限公司 | Asphalt mixture aging test method |
| CN205999737U (en) * | 2016-08-31 | 2017-03-08 | 龙建路桥股份有限公司 | Deck installation structure |
| US20180171146A1 (en) * | 2016-12-19 | 2018-06-21 | Blacklidge Emulsions Inc. | Age-resistant asphalt compositions and methods |
| CN206787891U (en) * | 2016-12-26 | 2017-12-22 | 中国石油化工股份有限公司 | A kind of road asphalt degradation mould |
Non-Patent Citations (2)
| Title |
|---|
| 中国石油化工股份有限公司科技开发部: "《石油和石油产品试验方法国家标准汇编 2005 下》", 30 April 2005, 中国石化出版社 * |
| 李祖仲等: "《沥青混合料试验》", 31 December 2012, 陕西师范大学出版社 * |
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Application publication date: 20181211 |
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