CN108593704A - A kind of system and method for measuring the cement stabilization base coefficient of expansion - Google Patents
A kind of system and method for measuring the cement stabilization base coefficient of expansion Download PDFInfo
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- CN108593704A CN108593704A CN201810582484.3A CN201810582484A CN108593704A CN 108593704 A CN108593704 A CN 108593704A CN 201810582484 A CN201810582484 A CN 201810582484A CN 108593704 A CN108593704 A CN 108593704A
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- data
- low temperature
- measuring
- experiment
- sweat box
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
Abstract
The invention discloses a kind of system and method for measuring the cement stabilization base coefficient of expansion, which includes sweat box, experiment porch system, high-low temperature resistant data line, data collecting system, computer and several high-low temperature resistant displacement meters.When experiment, experiment porch system is placed in sweat box first, the steady test specimen of water is placed on rack platform, the displacement meter of end card slot is placed on the top of both ends；Then data acquisition line is connected to across sweat box side wall preformed hole on the binding post of data collecting system；Connect computer；Sweat box is shut, the practical temperature and humidity conditions in humiture simulation scene are controlled by programmable high-low temperature test chamber；Open data collecting system and computer, data initialization zeroing；It is to start data acquisition when temperature humidity reaches preset value；End data acquire and preserve data after experiment reaches the default end time；Finally carry out data analysis and be fitted scene to obtain cement stabilization base dilatancy mechanism.
Description
Technical field
The present invention relates to a kind of experimental rig and methods, and in particular to one kind is for measuring the cement stabilization base coefficient of expansion
System and method.
Background technology
In recent years, with economic society sustained and rapid development, traffic volume of highway increases sharply, and cement stabilized base course structure is thick
Progressive additive is spent, intensity requirement is continuously improved, and the cement stabilized base course problem of Cracking that blows up is more apparent, is encircleed by cement stabilized base course
Distending, which splits the pavement disease brought and is always one, urgently waits upon and solves the problems, such as.It blows up mechanism to probe into cement stabilized base course, solution
Certainly cement stabilized base course structure blows up disease, improves cement stabilized base course pavement performance, carries out cement stabilized base course dilatancy machine
It is extremely urgent to manage correlative study.However it is only directed to the expansile test requirements document of cement pavement in presently relevant test specification and sets
Standby, cement stabilization base dilatancy correlation test method and apparatus is still blank.
In addition, in order to consider the circulation change of environment temperature and humidity on the expansile influence of cement stabilization base, this reality
Testing will carry out in programmable thermocycling sweat box.But it is limited by sweat box size, ventilation and load-bearing, test specimen and strain pass
Sensor cannot be placed directly on sweat box bottom plate.Exploitation is needed to meet load-bearing requirements and the reality of energy fixed displacement meter and placement test specimen
Platform is tested, and accurately acquires expansion data.
Invention content
The technical problem to be solved in the present invention is blank and experiment particular/special requirement for the prior art, provides one kind
System and method for measuring the cement stabilization base coefficient of expansion, the system structure are simple and convenient to operate, and can ensure to survey
Under conditions of accuracy of measurement, the cement stabilization base coefficient of expansion is measured.In view of sweat box size, ventilation and load-bearing limit, choosing
Experiment porch is made based on fixed displacement with the aluminum alloy materials of relative low density high rigidity and placement test specimen carries out expansion system
Number test experience.
The present invention adopts the following technical scheme that realize：
A kind of system for measuring the cement stabilization base coefficient of expansion, including sweat box, experiment porch system, resistance to height
Warm data line, data collecting system, computer and several high-low temperature resistant displacement meters；Wherein,
Experiment porch system and several high-low temperature resistant displacement meters are arranged in sweat box, several high-low temperature resistant displacement meters
Output end the input terminal of data collecting system, the output end of data collecting system are connected to by high-low temperature resistant data line
It is connected to the input terminal of computer.
The present invention, which further improves, to be, sweat box is programmable thermocycling sweat box, temperature adjustable range
It it is -30 ° to 150 °, humidity 0% to 100% is adjustable, meets the requirement of the live extreme temperature conditions of test specimen simulation.
The present invention, which further improves, to be, high-low temperature resistant data line is to meet this experimental simulation height temperature cycle to become
Change condition and mating setting, it is ensured that high/low temperature does not influence data acquisition.
The present invention, which further improves, to be, data collecting system is displacement acquisition system, the expansion for acquiring test specimen
Deformation data.
The present invention, which further improves, to be, computer is used to obtain the number of data collecting system acquisition by software kit
According to and further analyze.
The present invention, which further improves, to be, high-low temperature resistant displacement meter is used to measure the deflection of the steady test specimen two ends of water, real
It is fixed on the steady test specimen two ends of water in testing, is carried out under conditions of high/low temperature circulation change in view of experiment, and meet high/low temperature condition
The requirement of normal use.
The present invention, which further improves, to be, experiment porch system includes that rack platform, column, scattered press and water are steady
Test specimen；Wherein, rack platform includes bottom plate and both ends fixed displacement meter band clamp groove component；It is flat that column is used to support top experiment
Platform；It dissipates flattening bench to be used to upper load being distributed to sweat box support plate, avoids stress concentration fail temperature case；The steady test specimen of water
It is positioned on rack platform, high-low temperature resistant displacement meter is for withstanding the both ends of the steady test specimen of water to acquire its deflection.
A method of for measuring the cement stabilization base coefficient of expansion, this method is based on above-mentioned a kind of for measuring highway
The system of the cement treated material coefficient of expansion, includes the following steps：
When experiment, first, experiment porch system is placed in sweat box, the steady test specimen of water is placed on rack platform,
The high-low temperature resistant displacement meter of end card slot is placed on the top of both ends；
Second, high-low temperature resistant data line is connected to the binding post of data collecting system across sweat box side wall preformed hole
On；
Third, by data connection computer, computer installs mating data acquisition software in advance；
4th, sweat box is shut, the practical humiture item in humiture simulation scene is controlled by programmable high-low temperature test chamber
Part；
5th, open data collecting system and computer, data initialization zeroing；
6th, it is to start data acquisition when temperature humidity reaches preset value；
7th, end data acquire and preserve data after experiment reaches the default end time, are then shut off sweat box, data
Acquisition system；
Finally, data analysis is carried out and is fitted scene to obtain cement stabilization base dilatancy mechanism.
The present invention has following beneficial technique effect：
Structure of the invention is apparent, easy to operate, passes through the experiment porch system combination programmable high-low temperature test chamber of invention
Humiture, the practical temperature and humidity conditions in simulation scene are controlled, the deformation of the steady test specimen of water is acquired with the displacement meter for being fixed on test specimen two ends
Then amount using acquisition system gathered data and is transmitted to computer software, cement stabilization base is obtained finally by data analysis
Layer dilatancy mechanism.
Description of the drawings
Fig. 1 is the overall schematic of the present invention；
Fig. 2 is experimental platform system schematic diagram of the present invention；
In figure：1- sweat boxes, 2- experiment porch systems, 3- high-low temperature resistant data lines, 4- data collecting systems, 5- meters
Calculation machine, 6- high-low temperature resistant displacement meters, the steady test specimen of 7- water, 8- rack platforms, 9- dissipate press, 10- columns.
Specific implementation mode
Further explanation is made to the present invention below in conjunction with attached drawing.
As depicted in figs. 1 and 2, a kind of system for measuring the cement stabilization base coefficient of expansion provided by the invention, packet
Include sweat box 1, experiment porch system 2, high-low temperature resistant data line 3, data collecting system 4, computer 5 and several resistance to height
Low temperature displacement meter 6；Wherein, experiment porch system 2 and several high-low temperature resistant displacement meters 6 are arranged in sweat box 1, several are resistance to
The output end of high/low temperature displacement meter 6 is connected to the input terminal of data collecting system 4, data by high-low temperature resistant data line 3
The output end of acquisition system 4 is connected to the input terminal of computer 5.
The sweat box 1 is programmable thermocycling sweat box, ranging from -30 ° to 150 ° of temperature adjustable, humidity
0% to 100% is adjustable, meets the requirement of the live extreme temperature conditions of test specimen simulation.
The high-low temperature resistant data line 3, which is matched to meet this experimental simulation height temperature circulation change condition, to be arranged
It sets.Ensure that high/low temperature does not influence data acquisition.
The data collecting system 4 is the common displacement acquisition system in market, and the expansion for being mainly used for acquiring test specimen becomes
Graphic data.
The computer 5 told is used to obtain the data of acquisition system acquisition by software kit and further analyze.
The high-low temperature resistant displacement meter 6 told is used to measure the deflection of test specimen two ends, is fixed by rack platform 8 in experiment
In test specimen two ends, carried out under conditions of high/low temperature circulation change in view of experiment, so selected displacement meter should be able to meet height
The requirement of cryogenic conditions normal use.
The experiment porch system 2 told includes rack platform 8, column 10, dissipates press 9 and the steady test specimen of water 7.Wherein,
Rack platform 8 includes bottom plate and both ends fixed displacement meter band clamp groove component；Column 10 is used to support top experiment porch；It dissipates and flattens
Platform 9 is used to upper load being distributed to sweat box support plate, avoids stress concentration fail temperature case；The steady test specimen of water 7 is positioned over
On platform 8, high-low temperature resistant displacement meter 6 withstands its both ends to acquire the deflection of the steady test specimen of water 7.
When experiment, first, experiment porch system 2 is placed in sweat box 1, the steady test specimen of water 7 is placed on rack platform 8
On, the high-low temperature resistant displacement meter 6 of end card slot is placed on the top of both ends；
Second, high-low temperature resistant data line 3 is connected to connecing for data collecting system 4 across 1 side wall preformed hole of sweat box
On terminal；
Third, by data connection computer 5, computer 5 installs mating data acquisition software in advance；
4th, sweat box 1 is shut, the practical humiture item in humiture simulation scene is controlled by programmable high-low temperature test chamber
Part；
5th, open data collecting system 4 and computer 5, data initialization zeroing；
6th, it is to start data acquisition when temperature humidity reaches preset value；
7th, end data acquire and preserve data after experiment reaches the default end time, are then shut off sweat box 1, number
According to acquisition system 4；
Finally, data analysis is carried out and is fitted scene to obtain cement stabilization base dilatancy mechanism.
Claims (8)
1. a kind of system for measuring the cement stabilization base coefficient of expansion, which is characterized in that flat including sweat box (1), experiment
Stage body system (2), high-low temperature resistant data line (3), data collecting system (4), computer (5) and several high-low temperature resistant displacements
It counts (6)；Wherein,
Experiment porch system (2) and the setting of several high-low temperature resistant displacement meters (6) are in sweat box (1), several high-low temperature resistants
The output end of displacement meter (6) is connected to the input terminal of data collecting system (4), data by high-low temperature resistant data line (3)
The output end of acquisition system (4) is connected to the input terminal of computer (5).
2. a kind of system for measuring the cement stabilization base coefficient of expansion according to claim 1, which is characterized in that temperature
It is programmable thermocycling sweat box to spend case (1), and ranging from -30 ° to 150 ° of temperature adjustable, humidity 0% to 100% can
It adjusts, meets the requirement of the live extreme temperature conditions of test specimen simulation.
3. a kind of system for measuring the cement stabilization base coefficient of expansion according to claim 1, which is characterized in that resistance to
High/low temperature data line (3) is to meet this experimental simulation height temperature circulation change condition and mating setting, it is ensured that high/low temperature is not
Influence data acquisition.
4. a kind of system for measuring the cement stabilization base coefficient of expansion according to claim 1, which is characterized in that number
It is displacement acquisition system, the dilatancy data for acquiring test specimen according to acquisition system (4).
5. a kind of system for measuring the cement stabilization base coefficient of expansion according to claim 1, which is characterized in that meter
Calculation machine (5) is used to obtain the data of data collecting system (4) acquisition by software kit and further analyze.
6. a kind of system for measuring the cement stabilization base coefficient of expansion according to claim 1, which is characterized in that resistance to
High/low temperature displacement meter (6) is used to measure the deflection at the steady test specimen of water (7) both ends, and the steady test specimen of water (7) both ends are fixed in experiment, reflects
It is carried out under conditions of high/low temperature circulation change in experiment, and meets the requirement of high/low temperature condition normal use.
7. a kind of system for measuring the cement stabilization base coefficient of expansion according to claim 1, which is characterized in that real
Platform system (2) is tested to include rack platform (8), column (10), dissipate press (9) and the steady test specimen of water (7)；Wherein, holder is flat
Platform (8) includes bottom plate and both ends fixed displacement meter band clamp groove component；Column (10) is used to support top experiment porch；Dissipate flattening bench
(9) it is used to upper load being distributed to sweat box support plate, avoids stress concentration fail temperature case；The steady test specimen of water (7) is placed
In on rack platform (8), high-low temperature resistant displacement meter (6) is for withstanding the both ends of the steady test specimen of water (7) to acquire its deflection.
8. a kind of method for measuring the cement stabilization base coefficient of expansion, which is characterized in that this method is based on claim 7 institute
A kind of system for measuring the cement stabilization base coefficient of expansion stated, includes the following steps：
When experiment, first, experiment porch system (2) is placed in sweat box (1), it is flat that the steady test specimen of water (7) is placed on holder
On platform (8), the high-low temperature resistant displacement meter (6) of end card slot is placed on the top of both ends；
Second, high-low temperature resistant data line (3) is connected to data collecting system (4) across sweat box (1) side wall preformed hole
On binding post；
Third, by data connection computer (5), computer (5) installs mating data acquisition software in advance；
4th, sweat box (1) is shut, the practical humiture item in humiture simulation scene is controlled by programmable high-low temperature test chamber
Part；
5th, open data collecting system (4) and computer (5), data initialization zeroing；
6th, it is to start data acquisition when temperature humidity reaches preset value；
7th, end data acquire and preserve data after experiment reaches the default end time, are then shut off sweat box (1), data
Acquisition system (4)；
Finally, data analysis is carried out and is fitted scene to obtain cement stabilization base dilatancy mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582484.3A CN108593704A (en) | 2018-06-07 | 2018-06-07 | A kind of system and method for measuring the cement stabilization base coefficient of expansion |
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| CN201810582484.3A CN108593704A (en) | 2018-06-07 | 2018-06-07 | A kind of system and method for measuring the cement stabilization base coefficient of expansion |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114295808A (en) * | 2021-12-30 | 2022-04-08 | 长安大学 | Testing system and testing method for expansion deformation of water-stable gravel base |
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| CN103558246A (en) * | 2013-11-08 | 2014-02-05 | 山东大学 | Testing device and method for expansion coefficient of cement concrete for road surface |
| JP2014163770A (en) * | 2013-02-25 | 2014-09-08 | Kajima Corp | Linear expansion coefficient test method |
| CN205538769U (en) * | 2016-05-03 | 2016-08-31 | 贵州省交通规划勘察设计研究院股份有限公司 | Cement concrete air shrinkage temperature testing arrangement that contracts |
| CN106770429A (en) * | 2017-01-16 | 2017-05-31 | 长沙理工大学 | The measure device and application method of rubber-asphalt mixture expansion rate and temperature relation |
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2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384927A (en) * | 2011-11-23 | 2012-03-21 | 河海大学 | Measuring device for early-aged cement-based material thermal expansion coefficient under different environmental conditions and measuring method |
| CN202533431U (en) * | 2012-03-29 | 2012-11-14 | 哈尔滨工业大学 | Shrinkage deformation tester for semi-rigid material of pavement |
| JP2014163770A (en) * | 2013-02-25 | 2014-09-08 | Kajima Corp | Linear expansion coefficient test method |
| CN103558246A (en) * | 2013-11-08 | 2014-02-05 | 山东大学 | Testing device and method for expansion coefficient of cement concrete for road surface |
| CN205538769U (en) * | 2016-05-03 | 2016-08-31 | 贵州省交通规划勘察设计研究院股份有限公司 | Cement concrete air shrinkage temperature testing arrangement that contracts |
| CN106770429A (en) * | 2017-01-16 | 2017-05-31 | 长沙理工大学 | The measure device and application method of rubber-asphalt mixture expansion rate and temperature relation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114295808A (en) * | 2021-12-30 | 2022-04-08 | 长安大学 | Testing system and testing method for expansion deformation of water-stable gravel base |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200320 Address after: 830006 the Xinjiang Uygur Autonomous Region Urumqi shayibake barns Ditch Road No. 12 Applicant after: XINJIANG TRANSPORTATION PLANNING SURVEYING AND DESIGN INSTITUTE Applicant after: CHANG'AN University Applicant after: XINJIANG BODA YONGCHANG CONSTRUCTION ENGINEERING Co.,Ltd. Address before: 710064 Xi'an, South Shaanxi, the Second Ring Road No. 33 Applicant before: CHANG'AN University Applicant before: XINJIANG TRANSPORTATION PLANNING SURVEYING AND DESIGN INSTITUTE Applicant before: XINJIANG BODA YONGCHANG CONSTRUCTION ENGINEERING Co.,Ltd. |
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Application publication date: 20180928 |