CN106525601B - Integrated epoxy asphalt low-temperature load deformation temperature measuring device - Google Patents
Integrated epoxy asphalt low-temperature load deformation temperature measuring device Download PDFInfo
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- CN106525601B CN106525601B CN201611086501.1A CN201611086501A CN106525601B CN 106525601 B CN106525601 B CN 106525601B CN 201611086501 A CN201611086501 A CN 201611086501A CN 106525601 B CN106525601 B CN 106525601B
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
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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
- G01N2203/0222—Temperature
- G01N2203/0228—Low temperature; Cooling means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The integrated epoxy asphalt low-temperature load deformation temperature measuring device is characterized by comprising a refrigerator (1) and a test box body (2), wherein a bath groove (3) is arranged in the test box body (2), and the refrigerator (1) is connected with a refrigeration pipe arranged in the bath groove (3) through a refrigeration connecting pipe; a heater (4) is also arranged in the bath (3) so as to adjust the temperature in the bath (3) during testing; a lifting panel (5) is arranged on the bath groove (3), a tray (6) is arranged on the panel (5), the tray (6) is connected with a load rod (7) inserted into the bath groove (3), the lower end of the load rod (7) is opposite to a sample rack (8) hung at the lower part of the panel (5), a dial indicator rod (11) is arranged at one side of the test box body (1), and a pointer of a dial indicator arranged on the dial indicator rod is propped against a code placed in the tray (6); a temperature measuring couple (13) is inserted on the panel (5). The invention has strong operability, high repeatability and high efficiency.
Description
Technical Field
The invention relates to a test device, in particular to an epoxy asphalt test device, and specifically relates to an integrated epoxy asphalt low-temperature load deformation temperature measuring device capable of detecting the low-temperature deformation capacity of epoxy asphalt.
Background
The epoxy asphalt material has excellent low-temperature use performance, and the load deformation temperature test is a main index for representing the low-temperature performance of the epoxy asphalt material, and the index has clear requirements in the technical index of the epoxy asphalt in the United states. The American society is mainly tested by adopting the method of American standard ASTM D648, and the main use temperature range of the American standard is above room temperature. The load deformation temperature index of the epoxy asphalt material is generally-15 to-25 ℃. At present, the detection mechanism in China mainly detects the load deformation temperature of plastic products according to GB/T1634.1-2004, section 1 of the detection of the load deformation temperature of plastic: general test methods and GB/T1634.2-2004 section 2 determination of deformation temperature under Plastic load: plastic, hard rubber and long fiber reinforced composite materials, the deformation temperature detection range of the materials for the two standards is more than room temperature. In addition, the application range of the conventional load deformation temperature detection instrument is also above room temperature. At present, no corresponding detection method and instrument exist in China, and detection technology blank exists. Under the condition, a detection instrument suitable for the load deformation temperature of the epoxy asphalt is urgently designed and developed to solve the problem of temperature measurement, so that the product quality of the material can be effectively monitored, and the wide safety application of the product is promoted and ensured.
Disclosure of Invention
The invention aims to solve the problem that a characteristic instrument for detecting that the load deformation temperature of an epoxy asphalt material is below 0 ℃ is not available at present, and designs an integrated epoxy asphalt low-temperature load deformation temperature measuring device so as to fill the blank of no-load deformation temperature detecting equipment in a low-temperature environment, and the device is simple and easy to operate and can meet the requirement of daily detection.
The technical scheme of the invention is as follows:
the integrated epoxy asphalt low-temperature load deformation temperature measuring device is characterized by comprising a refrigerator 1 and a test box body 2, wherein a bath tank 3 is arranged in the test box body 2, an upper liquid pipe 15 is arranged at the upper part of the bath tank 3, a liquid discharge pipe 16 is connected at the lower part of the bath tank 3 so as to be convenient for adding liquid for discharging immersed samples, and the refrigerator 1 is connected with a refrigerating pipe arranged in the bath tank 3 through a refrigerating connecting pipe so as to refrigerate the interior of the bath tank 3; a heater 4 is also arranged inside the bath 3 to adjust the temperature inside the bath 3 during testing; the bath 3 is provided with a panel 5 which can be lifted and sealed, the panel 5 is provided with a tray 6, the tray 6 is connected with a load rod 7 inserted into the bath 3, the lower end of the load rod 7 is opposite to a sample rack 8 hoisted at the lower part of the panel 5, one side of the test box 1 is provided with a dial gauge rod 11, and a pointer of a dial gauge arranged on the dial gauge rod is propped against a code placed in the tray 6; a temperature measuring couple 13 is inserted on the panel 5.
The sample rack 8 is provided with a bulge 9 which is used for placing samples and is beneficial to deformation.
Both sides of the panel 5 are connected with an electric push rod 10, and the electric push rod 10 is arranged in the test box body 2 and outside the bath tank 3.
The stirring shaft 12 is arranged in the bath 3, and the stirring shaft 12 drives the stirring blades on the stirring shaft to rotate so as to make the temperature in the bath 3 more uniform.
The load rod 7 is connected with a pressure head 14 which is directly contacted with the sample, and the end part of the pressure head 14 is of a hemispherical structure.
The refrigerating pipe arranged in the bath tank 3 is a spiral copper pipe.
The panel 5 is composed of an upper panel and a lower panel, the lower panel is used for being connected with the bath in a sealing way, and the lower panel is used for installing a tray and setting an electric switch button.
The upper part of the load rod 7 is sleeved in a guide sleeve 17 fixed on the panel 5.
The invention has the beneficial effects that:
1. the invention has strong operability.
2. The invention has high repeatability and high efficiency.
3. The invention has high temperature controllability and stability.
4. The invention can conveniently and effectively detect the load deformation temperature of the epoxy asphalt in a low-temperature environment (below zero).
Drawings
Fig. 1 is a schematic diagram of the front view structure of the present invention.
FIG. 2 is a schematic side view of the test chamber of the present invention.
Fig. 3 is a schematic structural view of the panel of the present invention.
Fig. 4 is a left side view of fig. 3.
FIG. 5 is a schematic view of the structure of the bath of the present invention.
Fig. 6 is a left-hand structural schematic diagram of fig. 5.
Fig. 7 is a schematic top view of fig. 5.
FIG. 8 is a schematic view of the internal structure (part) of the test chamber of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1-8.
The utility model provides an integrated epoxy asphalt low temperature load deformation temperature measuring device, it includes refrigerator 1 and test box 2, as shown in figure 1, refrigerator 1 can adopt conventional refrigeration equipment, install bath 3 in the test box 2, as shown in figure 2, upper liquid pipe 15 is set up in the upper portion of bath 3, the lower part is connected with drain pipe 16 in order to add the liquid of the discharge immersion sample, refrigerator 1 is connected with the refrigeration pipe (can adopt spiral copper pipe) installed in bath 3 through the refrigeration connecting pipe so as to refrigerate the inside of bath 3, the refrigeration connecting pipe should take the thermal insulation measure; the heater 4 is also arranged in the bath tank 3 so as to adjust the temperature in the bath tank 3 during testing, and in order to make the temperature in the bath tank uniform rapidly, an electric stirring shaft 12 is additionally arranged in the bath tank, and the stirring shaft 12 drives stirring blades on the stirring shaft to rotate, as shown in figures 5, 6 and 7; the bath 3 is provided with a panel 5 which can be lifted and sealed, and the panel 5 moves up and down through two side electric push rods 10, so that the bath 3 is opened or closed, and the electric push rods 10 are arranged in the test box 2 and outside the bath 3, as shown in fig. 8. The panel 5 can be composed of an upper panel and a lower panel (as shown in fig. 5), wherein the lower panel is used for being connected with the bath in a sealing way, and the lower panel is used for installing a tray and setting an electric switch button. The tray 6 is mounted on the panel 5, the tray 6 is connected with a load rod 7 inserted into the bath 3, and the upper part of the load rod 7 is sleeved in a guide sleeve 17 fixed on the panel 5. The load rod 7 is connected with a pressure head 14 which is directly contacted with the sample, the end part of the pressure head 14 is of a hemispherical structure, as shown in fig. 6, the lower end of the load rod 7 is opposite to the sample rack 8 hoisted at the lower part of the panel 5, and the sample rack 8 is provided with a bulge 9 which is used for placing the sample and is beneficial to deformation. A dial indicator rod 11 is arranged on one side of the test box body 1, and a dial indicator needle of the dial indicator arranged on the dial indicator rod is propped against a code placed in the tray 6; a temperature measuring thermocouple 13 (fig. 4) is inserted and obliquely arranged on the panel 5. In the specific implementation, four or more test racks 8 may be installed in the same bath, so that four or more samples may be tested simultaneously.
The working flow of the invention is as follows:
a certain volume of liquid (alcohol) should be injected into the test bath 3 before the test, and the liquid (alcohol) is injected from a filling port at the rear of the bath. The sample rack 8 is lifted electrically, the selected test sample strips are placed in a stainless steel basket between two paths of racks of the sample rack according to the requirement, and the whole surface is covered by a stainless steel sheet, but the stainless steel sheet is not pressed to the upper surface of the test sample strips, so that the surface of the test sample strips is kept in a flat state until a deformation test is started.
After the sample is installed and placed, the sample rack 8 is electrically lowered into the bath tank 3, test parameters are set in a touch screen of a front panel of the test device, a refrigeration control key is started, a central processing unit (the device is developed based on ARM control) sends a working instruction to a refrigerator, the compressor works, the refrigerator is connected with a condenser in the bath tank, at the moment, the refrigerant in a pipeline acts, and the liquid in the bath tank is gradually cooled to-40 ℃.
After setting up test parameters, when the refrigerator works, the stirring button is turned on, and at the moment, the stirring motor drives the two pulse speed lines and the fan blades connected with the pulse speed lines to rotate, so that internal liquid is stirred, and better temperature uniformity is obtained for the internal liquid, and the temperature in the bath, measured by the four temperature measuring points, is kept at-40 ℃.
After a few minutes, the sample rack is lifted up, a small amount of operable space is reserved, the stainless steel sheet at the upper part of the sample bar is removed, meanwhile, the sample bar is rapidly transferred to two ends of the span bulge by forceps (the process defaults that the sample bar is removed at a low temperature until no deformation occurs in the process of transferring to the bulge of the sample rack), then the lowest end of the load bar is placed on the sample bar so as to prevent the sample bar from deviating from the position in the bath, then a down button is immediately started, the sample rack 8 and the panel 5 are fallen together, meanwhile, the temperature in the bath is cooled again to the set minimum temperature of-40 ℃, and after the temperature is detected at the temperature of-40 ℃ by four temperature measuring points, the sample bar is kept for a few minutes again, and is ready for starting displacement measurement.
Meanwhile, a load rod pressure head is placed at the upper surface end of a test bar, after the pressure head is installed at the bottom of the load rod, a weight with corresponding pressure is selected to be placed in an upper tray 6, the lower part of a dial indicator on a meter rod is placed on the weight, after the movable section of the end part is compressed for one positioning movement, the dial indicator is cleared, and the system judges that the weight is at the zero point.
After the liquid temperature in the bath tank is cooled to the set temperature of minus 40 ℃, the temperature point (five PT100 are arranged in the bath tank) is processed and collected by the refrigerator, the temperature is judged to reach the test condition, and a stop working instruction is sent, so that the refrigerator stops working.
After the refrigerator stops working, the processor automatically runs a program, starts a heater in the bath, heats the bath in a inching mode, records and judges the heating rate in real time, and automatically corrects the rate.
When the deformation of the sample reaches the required temperature rising rate and load, the dial indicator on the upper part of the weight generates the same displacement, the processor reads the displacement of the dial indicator, records the deformation temperature when the deformation reaches the specified displacement variable, and performs the same logic action corresponding to each station.
When all station tests reach the requirements, the system is automatically stopped, an alarm is given, and the test temperature is recorded in the internal storage. The back of the experimental device is provided with a communication interface which can be connected with a computer at the same time, and the temperature and the curve of the experimental process are synchronously recorded. After the test, the internal liquid was discharged and stored in a sealed state. The rear shut-off valve of the test unit was opened and closed after the liquid was discharged (a back-up valve was installed at the bottom of the bath tank and opened for a long period of time).
The invention is not related in part to the same as or can be practiced with the prior art.
Claims (4)
1. The integrated epoxy asphalt low-temperature load deformation temperature measuring device is characterized by comprising a refrigerator (1) and a test box body (2), wherein a bath groove (3) is arranged in the test box body (2), an upper liquid pipe (15) is arranged at the upper part of the bath groove (3), a liquid discharge pipe (16) is connected at the lower part of the bath groove so as to discharge liquid of a immersed sample, and the refrigerator (1) is connected with a refrigerating pipe arranged in the bath groove (3) through a refrigerating connecting pipe so as to refrigerate the interior of the bath groove (3); a heater (4) is also arranged in the bath (3) so as to adjust the temperature in the bath (3) during testing; a panel (5) which can be lifted and sealed is arranged on the bath groove (3), a tray (6) is arranged on the panel (5), the tray (6) is connected with a load rod (7) inserted into the bath groove (3), the lower end of the load rod (7) is opposite to a sample rack (8) hung at the lower part of the panel (5), a dial indicator rod (11) is arranged at one side of the test box body (2), and a pointer of a dial indicator arranged on the dial indicator rod is propped against weights placed in the tray (6); a temperature measuring couple (13) is inserted on the panel (5); the sample rack (8) is provided with a bulge (9) which is used for placing a sample and is beneficial to deformation; both sides of the panel (5) are connected with an electric push rod (10), and the electric push rod (10) is arranged in the test box body (2) and outside the bath tank (3); a stirring shaft (12) is arranged in the bath (3), and the stirring shaft (12) drives stirring blades on the stirring shaft to rotate so as to make the temperature in the bath (3) more uniform; the load rod (7) is connected with a pressure head (14) which is directly contacted with the sample, and the end part of the pressure head (14) is of a hemispherical structure.
2. The integrated epoxy asphalt low-temperature load deformation temperature measuring device according to claim 1, wherein the refrigerating pipe arranged in the bath (3) is a spiral copper pipe.
3. The integrated epoxy asphalt low-temperature load deformation temperature measuring device according to claim 1, wherein the panel (5) consists of an upper panel and a lower panel, the lower panel is used for being connected with a bath in a sealing way, and the lower panel is used for installing a tray and setting an electric switch button.
4. The integrated epoxy asphalt low-temperature load deformation temperature measuring device according to claim 1, wherein the upper part of the load rod (7) is sleeved in a guide sleeve (17) fixed on the panel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611086501.1A CN106525601B (en) | 2016-12-01 | 2016-12-01 | Integrated epoxy asphalt low-temperature load deformation temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611086501.1A CN106525601B (en) | 2016-12-01 | 2016-12-01 | Integrated epoxy asphalt low-temperature load deformation temperature measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106525601A CN106525601A (en) | 2017-03-22 |
| CN106525601B true CN106525601B (en) | 2023-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611086501.1A Active CN106525601B (en) | 2016-12-01 | 2016-12-01 | Integrated epoxy asphalt low-temperature load deformation temperature measuring device |
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| CN (1) | CN106525601B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181946B (en) * | 2017-12-31 | 2023-02-24 | 江苏科泰检测技术服务有限公司 | Ice bath device for detection room and use method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125685A (en) * | 1997-09-30 | 2000-10-03 | The Board Of Trustees Of The University Of Arkansas | Apparatus and method for the evaluation of asphalt mixes |
| RU65229U1 (en) * | 2007-02-28 | 2007-07-27 | Общество с ограниченной ответственностью "Строительная лаборатория" (ООО "Строительная лаборатория") | DEVICE FOR ASPHALT CONCRETE TEST FOR MOVABILITY |
| CN202018262U (en) * | 2011-04-07 | 2011-10-26 | 石家庄开发区中实检测设备有限公司 | Displacement measuring device of thermal deformation temperature measuring device |
| 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 |
| CN203616212U (en) * | 2013-12-16 | 2014-05-28 | 长安大学 | Rheology tester for asphalt binder |
| CN203786064U (en) * | 2014-04-25 | 2014-08-20 | 牡丹江师范学院 | Material softening temperature detecting instrument |
| CN204116163U (en) * | 2014-09-29 | 2015-01-21 | 重庆市智翔铺道技术工程有限公司 | Casting type asphaltic mixture hardness tester |
| CN105573376A (en) * | 2015-12-23 | 2016-05-11 | 中国三冶集团有限公司 | Circulation bath automatic temperature control system for asphalt penetration test and usage method thereof |
-
2016
- 2016-12-01 CN CN201611086501.1A patent/CN106525601B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6125685A (en) * | 1997-09-30 | 2000-10-03 | The Board Of Trustees Of The University Of Arkansas | Apparatus and method for the evaluation of asphalt mixes |
| RU65229U1 (en) * | 2007-02-28 | 2007-07-27 | Общество с ограниченной ответственностью "Строительная лаборатория" (ООО "Строительная лаборатория") | DEVICE FOR ASPHALT CONCRETE TEST FOR MOVABILITY |
| CN202018262U (en) * | 2011-04-07 | 2011-10-26 | 石家庄开发区中实检测设备有限公司 | Displacement measuring device of thermal deformation temperature measuring device |
| 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 |
| CN203616212U (en) * | 2013-12-16 | 2014-05-28 | 长安大学 | Rheology tester for asphalt binder |
| CN203786064U (en) * | 2014-04-25 | 2014-08-20 | 牡丹江师范学院 | Material softening temperature detecting instrument |
| CN204116163U (en) * | 2014-09-29 | 2015-01-21 | 重庆市智翔铺道技术工程有限公司 | Casting type asphaltic mixture hardness tester |
| CN105573376A (en) * | 2015-12-23 | 2016-05-11 | 中国三冶集团有限公司 | Circulation bath automatic temperature control system for asphalt penetration test and usage method thereof |
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