CN100514062C - Measuring device for permeability of concrete - Google Patents
Measuring device for permeability of concrete Download PDFInfo
- Publication number
- CN100514062C CN100514062C CNB2006100102829A CN200610010282A CN100514062C CN 100514062 C CN100514062 C CN 100514062C CN B2006100102829 A CNB2006100102829 A CN B2006100102829A CN 200610010282 A CN200610010282 A CN 200610010282A CN 100514062 C CN100514062 C CN 100514062C
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- China
- Prior art keywords
- concrete
- hydraulic cylinder
- metal tube
- resistance value
- hydraulic
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Abstract
Disclosed is a device for measuring the infiltration performance of concrete. The device is characterized in that the lower end of a metal pipe (7) is embedded in a hole (8-1); the output port of the hydraulic pressure tank (1) and the detecting port of the pressure meter (2) are connected to each other via the ports on the water pipe (5) and the metal pipe (7); the metal ring (6) is jointed out of the concrete sample (8); one end of the resistance detecting circuit (4) is connected on the metal pipe (7), and the other end of the resistance detecting circuit (4) is connected on the metal ring (6); the weight (3) is jointed on the upper end of the hydraulic pressure bar (1-1); the hydraulic pressure bar lower end of the hydraulic pressure tank is installed in the hydraulic pressure cavity.
Description
Technical field
What the present invention relates to is the concrete performance technical field of measuring.
Background technology
Concrete intensity and permanance and its perviousness are closely related, and perviousness is to estimate the important technology index of concrete quality.The infiltrative method of testing of existing concrete has hydraulic pressure test method and electric quantity test method.The hydraulic pressure test method is to add hydraulic pressure on concrete sample, with permeable pressure as the impermeabilisation label; Or the sample of riving, measure the height of water infiltration in the sample, this method not only the test duration long, and measure inaccurately, error is bigger; The electric quantity test method is that sample is immersed in the conducting solution, and conductive ion infiltrates sample, and under extra electric field, the electric weight that flows through sample by measurement detects concrete perviousness, and this method relatively expends time in.
Summary of the invention
The present invention needs when sample is detected for a long time and inaccurate problem in order to overcome existing hydraulic pressure test method, reaches electric quantity test method problem more consuming time when sample is detected, and then has proposed a kind of measuring device for permeability of concrete; The present invention is made up of hydraulic cylinder 1, tensimeter 2, counterweight 3, resistance value testing circuit 4, water pipe 5, becket 6, metal tube 7; Have a plurality of through hole 7-1 on the tube wall of metal tube 7 lower ends; The part that metal tube 7 has a plurality of through hole 7-1 is embedded in the hole 8-1 on the concrete sample 8, the water outlet port of hydraulic cylinder 1, the detection port of tensimeter 2 interconnects by the upper port of water pipe 5 with metal tube 7, becket 6 is socketed in the outside of concrete sample 8, an input end of resistance value testing circuit 4 connects on the metal tube 7, another input end of resistance value testing circuit 4 is connected on the becket 6, counterweight 3 is socketed in the upper end of the hydraulic stem 1-1 that is exposed at hydraulic cylinder 1 top, the axial line of hydraulic cylinder 1 vertically is provided with, and the spool of the hydraulic stem 1-1 lower end of hydraulic cylinder 1 is arranged in the hydraulic cavities.Principle of work: the inside of hydraulic cylinder 1, metal tube 7, water pipe 5 is full of conducting liquid, adjust the weight of counterweight 3, utilize gravity to make the hydraulic stem 1-1 of hydraulic cylinder 1 produce certain pressure F downwards, force conducting liquid to be injected into the inside of concrete sample 8 by a plurality of through hole 7-1 on the metal tube 7, make concrete sample 8 conductions, resistance value testing circuit 4 will detect the conductance of concrete sample 8 constantly simultaneously, and the concrete sample resistance value is measured over time as the infiltrative evaluation index of concrete sample.The present invention can detect the perviousness of concrete sample in a short period of time accurately, have simultaneously simple in structure, cheap, maneuverable advantage.
Description of drawings
Fig. 1 is an one-piece construction synoptic diagram of the present invention, and Fig. 2 is the A-A cut-open view of Fig. 1, and Fig. 3 is the structural representation of embodiment two.
Embodiment
Embodiment one: present embodiment is made up of hydraulic cylinder 1, tensimeter 2, counterweight 3, resistance value testing circuit 4, water pipe 5, becket 6, metal tube 7; Have a plurality of through hole 7-1 on the tube wall of metal tube 7 lower ends; The part that metal tube 7 has a plurality of through hole 7-1 is embedded in the hole 8-1 on the concrete sample 8, the water outlet port of hydraulic cylinder 1, the detection port of tensimeter 2 interconnects by the upper port of water pipe 5 with metal tube 7, becket 6 is socketed in the outside of concrete sample 8, an input end of resistance value testing circuit 4 connects on the metal tube 7, another input end of resistance value testing circuit 4 is connected on the becket 6, counterweight 3 is socketed in the upper end of the hydraulic stem 1-1 that is exposed at hydraulic cylinder 1 top, the axial line of hydraulic cylinder 1 vertically is provided with, and the spool of the hydraulic stem 1-1 lower end of hydraulic cylinder 1 is arranged in the hydraulic cavities.
Embodiment two: the difference of present embodiment and embodiment one is that the inner spool of described hydraulic cylinder 1 is a corrugated tube 1-2 structure.This structure can improve leakproofness.
The conversion method of summary concrete permeability: keep certain constant pressure by counterweight 3 control water routes, utilize computer real-time monitoring and write down resistance value testing circuit 4 over time, in a stipulated time, the concrete resistance change with time is as the index of estimating concrete permeability, D=(R
2-R
1)/(T
2-T
1); R
2Be time T
2The time resistance value; R
1Be time T
1The time resistance value.
Claims (2)
1, a kind of measuring device for permeability of concrete is characterized in that it is made up of hydraulic cylinder (1), tensimeter (2), counterweight (3), resistance value testing circuit (4), water pipe (5), becket (6), metal tube (7); Have a plurality of through holes (7-1) on the tube wall of metal tube (7) lower end; The part that metal tube (7) has a plurality of through holes (7-1) is embedded in the hole (8-1) on the concrete sample (8), the water outlet port of hydraulic cylinder (1), the detection port of tensimeter (2) interconnects by the upper port of water pipe (5) with metal tube (7), becket (6) is socketed in the outside of concrete sample (8), an input end of resistance value testing circuit (4) connects on the metal tube (7), another input end of resistance value testing circuit (4) is connected on the becket (6), counterweight (3) is socketed in the upper end of the hydraulic stem (1-1) that is exposed at hydraulic cylinder (1) top, the axial line of hydraulic cylinder (1) vertically is provided with, and the spool of hydraulic stem (1-1) lower end of hydraulic cylinder (1) is arranged in the hydraulic cavities.
2, a kind of measuring device for permeability of concrete according to claim 1, the inner spool that it is characterized in that described hydraulic cylinder (1) are corrugated tube (1-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100102829A CN100514062C (en) | 2006-07-12 | 2006-07-12 | Measuring device for permeability of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100102829A CN100514062C (en) | 2006-07-12 | 2006-07-12 | Measuring device for permeability of concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1877325A CN1877325A (en) | 2006-12-13 |
| CN100514062C true CN100514062C (en) | 2009-07-15 |
Family
ID=37509816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100102829A Expired - Fee Related CN100514062C (en) | 2006-07-12 | 2006-07-12 | Measuring device for permeability of concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100514062C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101470107B (en) * | 2007-12-27 | 2013-02-13 | 河南理工大学 | Concrete body and test instrument thereof and method for permeation performance with other medium bonding surface |
| CN101532940B (en) * | 2009-04-20 | 2010-11-03 | 哈尔滨工业大学 | Device for detecting concrete permeability and ion content |
| CN103487480B (en) * | 2013-09-29 | 2015-06-03 | 北京航空航天大学 | Method for rapidly predicting service life of reinforced concrete in chlorine salt environment |
| CN106092855A (en) * | 2016-07-07 | 2016-11-09 | 中国电建集团贵阳勘测设计研究院有限公司 | The device of a kind of seepage proof curtain simulation test and test method |
-
2006
- 2006-07-12 CN CNB2006100102829A patent/CN100514062C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1877325A (en) | 2006-12-13 |
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Legal Events
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU JINLING CONSTRUCTION ENGINEERING GROUP CO. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yang Yingzi Inventor after: Feng Xiang Inventor after: Zhao Yading Inventor after: Yang Shaowei Inventor after: Zhang Wuman Inventor after: Ba Hengjing Inventor before: Yang Yingzi Inventor before: Zhao Yading Inventor before: Yang Shaowei Inventor before: Zhang Wuman Inventor before: Ba Hengjing |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: YANG YINGZI ZHAO YADING YANG SHAOWEI ZHANG WUMAN BA HENGJING TO: YANG YINGZI FENG XIANG ZHAO YADING YANG SHAOWEI ZHANG WUMAN BA HENGJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110201 Address after: 150001 Harbin, Nangang, West District, large straight street, No. 92 Co-patentee after: Jiangsu Jinling Construction Engineering Group Co., Ltd. Patentee after: Harbin Institute of Technology Address before: 150001 Harbin, Nangang, West District, large straight street, No. 92 Patentee before: Harbin Institute of Technology |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20120712 |