CN101319982B - Concrete permeability measurement apparatus - Google Patents
Concrete permeability measurement apparatus Download PDFInfo
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- CN101319982B CN101319982B CN200810064976XA CN200810064976A CN101319982B CN 101319982 B CN101319982 B CN 101319982B CN 200810064976X A CN200810064976X A CN 200810064976XA CN 200810064976 A CN200810064976 A CN 200810064976A CN 101319982 B CN101319982 B CN 101319982B
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- steel pipe
- rubber hose
- flexible rubber
- nut
- concrete
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Abstract
A concrete penetrability measuring device relates to a measuring device for the performances of the concrete. The invention solves the problems that the existing concrete penetrability measuring method has the defects of overlong testing time, accurate measuring and large error as well as that a coulometric method can not solve the evaluation on the penetrability of the concrete with slat mixed admixtures. The lower part of the first steel tube (2) of the invention is arranged in a container (11); an infiltration pore (2-1) is arranged at the tubular wall of the first steel tube (2); the first steel tube (2) is connected with a screw cap (3); a humidity sensor (4) is arranged in the screw cap (3); the lower part of a second steel tube (5) is arranged in the first steel tube (2); the upper part of the second steel tube (5) is connected with one end of a first flexible rubber hose (7); the other end of the first flexible rubber hose (7) is connected with a nitrogen bottle (14); one end of a third steel tube (6) is arranged in a radial hole (3-2); the other end of the third steel tube (6) is connected with a second flexible rubber hose (9); a second pipe strap (10) is arranged on the second flexible rubber hose (9). The measuring device of the invention has the advantages of short testing time, accurate measuring, less error and simple structure.
Description
Technical field
The present invention relates to a kind of measurement mechanism of concrete performance.
Background technology
Concrete perviousness and its intensity and permanance are closely related, and concrete perviousness is to estimate the important technology index of concrete quality.The measuring method of available coagulation soil permeability has hydraulic pressure, pneumatic process and electrical parameter method of testing.The hydraulic pressure test method is to add hydraulic pressure on concrete sample, with permeable pressure as anti-penetration grade, perhaps concrete sample is rived, measure the height of water infiltration in the concrete sample, this method is the testing tool complexity not only, and long detection time for high-strength high-performance concrete, measuring error is bigger.Pneumatic process mainly is to detect the attenuation degree that the gas with certain pressure acts on behind the concrete to estimate concrete perviousness.Electrical parameter method of testing such as coulomb electric charge method, concrete sample is immersed in the conducting solution, conductive ion enters concrete sample, under the extra electric field effect, the electric weight that flows through concrete sample by measurement detects concrete perviousness, this method test duration is long, and test specimen heats up easily and causes test error, and can not solve and mix the evaluation of salt additive concrete permeability.
Summary of the invention
The objective of the invention is for the measuring method test duration that solves the available coagulation soil permeability long, measure inaccurate big with error, and coulometry can not solve mixes the problem that salt additive concrete permeability is estimated, and then a kind of concrete permeability measurement apparatus is provided.
Technical scheme of the present invention is: concrete permeability measurement apparatus comprises first steel pipe, nut, humidity sensor, second steel pipe, the 3rd steel pipe, first flexible rubber hose, first pipe clamp, second flexible rubber hose, second pipe clamp, container, end socket, outer computer, cover plate, joint and nitrogen cylinder, described cover plate is installed on the upper surface of container, the bottom of described first steel pipe is contained in the container, have a plurality of permeability holes on the tube wall of the first steel pipe bottom, be fixed with end socket on the lower surface of first steel pipe, the upper end of described first steel pipe is passed cover plate and is contained in the joint, the outer wall of described joint is threaded with nut, have on the upper surface of described nut and pass through the hole, the sidewall of described nut has two radial holes, described humidity sensor is arranged in the nut, the hole of passing through that the output terminal of described humidity sensor passes on the nut is connected with outer computer, the bottom of described second steel pipe is arranged in first steel pipe, the radial hole that the top of described second steel pipe is passed on the nut sidewall is connected with an end of first flexible rubber hose, the other end of described first flexible rubber hose is connected with nitrogen cylinder, described first pipe clamp is installed on first flexible rubber hose, one end of described the 3rd steel pipe is installed in another radial hole on the nut sidewall, the other end of described the 3rd steel pipe is connected with second flexible rubber hose, and described second pipe clamp is installed on second flexible rubber hose.
The present invention compared with prior art has following beneficial effect: the concrete sample among the present invention is owing to done the embedding pipe fittings processing, water is penetrated into inside concrete under the certain pressure effect, reflect concrete perviousness over time by monitoring inside concrete humidity, humidity sensor is imported computing machine with measuring-signal.The present invention has the test duration weak point, measurement is accurate, error is little, can solve the evaluation and the advantages of simple structure and simple of mixing salt additive concrete permeability.
Description of drawings
Fig. 1 is that one-piece construction master of the present invention looks cut-open view.
Embodiment
Embodiment one: present embodiment is described in conjunction with Fig. 1, present embodiment comprises concrete sample 1, first steel pipe 2, nut 3, humidity sensor 4, second steel pipe 5, the 3rd steel pipe 6, first flexible rubber hose 7, first pipe clamp 8, second flexible rubber hose 9, second pipe clamp 10, container 11, end socket 12, outer computer 13, cover plate 21, joint 19 and nitrogen cylinder 14, described cover plate 21 is installed on the upper surface of container 11, the bottom of described first steel pipe 2 is embedded in the center of concrete sample 1, have a plurality of permeability hole 2-1 on the tube wall of first steel pipe, 2 bottoms, be fixed with end socket 12 on the lower surface of first steel pipe 2, the upper end of described first steel pipe 2 is passed cover plate 21 and is contained in the joint 19, the outer wall of described joint 19 is threaded with nut 3, have on the upper surface of described nut 3 by hole 3-1, the sidewall of described nut 3 has two radial hole 3-2, described humidity sensor 4 is arranged in the nut 3, the hole 3-1 that passes through that the output terminal of described humidity sensor 4 passes on the nut 3 is connected with outer computer 13, the bottom of described second steel pipe 5 is arranged in first steel pipe 2, the radial hole 3-2 that the top of described second steel pipe 5 is passed on nut 3 sidewalls is connected with an end of first flexible rubber hose 7, the other end of described first flexible rubber hose 7 is connected with nitrogen cylinder 14, described first pipe clamp 8 is installed on first flexible rubber hose 7, one end of described the 3rd steel pipe 6 is installed in another radial hole 3-2 on nut 3 sidewalls, the other end of described the 3rd steel pipe 6 is connected with second flexible rubber hose 9, described second pipe clamp 10 is installed on second flexible rubber hose 9, described concrete sample 1 is placed in the container 11, is marked with water in the die cavity that forms between container 11 and the concrete sample 1.
Embodiment two: in conjunction with Fig. 1 present embodiment is described, a plurality of permeability hole 2-1 of present embodiment evenly are opened on the tube wall of first steel pipe, 2 bottoms.So be provided with, infiltration evenly.Other composition is identical with embodiment one with annexation.
Embodiment three: present embodiment is described in conjunction with Fig. 1, the difference of present embodiment and embodiment one is, it also increases penstock 15, valve 16, tensimeter 17 and pressue device 18, one end of described penstock 15 passes cover plate 21 and inserts in the die cavity that forms between container 11 and the concrete sample 1, the other end of penstock 15 is equipped with pressue device 21, described valve 16 is installed on the penstock 15 away from pressue device 18 1 ends, and described tensimeter 17 is installed on the penstock 15 between pressue device 18 and the valve 16.So be provided with, effectively shortened the test duration.Other composition is identical with embodiment one with annexation.
Embodiment four: in conjunction with Fig. 1 present embodiment is described, the difference of present embodiment and embodiment three is that it also increases seal 20, and described seal 20 is arranged on the junction of first steel pipe 2 and cover plate 21.So be provided with, guaranteed sealing.Other composition is identical with embodiment three with annexation.
Principle of work (referring to Fig. 1), concrete sample 1 of the present invention is placed in the container 11, first steel pipe 2 is connected with nut 3, the output terminal of humidity sensor 4 is connected with outer computer 13, first flexible rubber hose 7 is connected with nitrogen cylinder 14, open first pipe clamp 8 and second pipe clamp 10 inflated with nitrogen 8～10 seconds in steel pipe, discharge the air in the steel pipe, close first pipe clamp 8 and second pipe clamp 10 then, again concrete sample 1 is placed in the container 11, in container 11, add entry, make concrete sample 1 under water, utilize pressue device 18 pressurizations, accelerate the infiltration of water at concrete sample 1, humidity sensor 4 detects the humidity in the steel pipe, be input in the computing machine, show humidity value, calculate humidity speed over time, promptly represent concrete perviousness with unit interval humidity added value.The present invention can come out concrete testing permeability accurately and fast.
Claims (4)
1. concrete permeability measurement apparatus, it comprises first steel pipe (2), nut (3), humidity sensor (4), second steel pipe (5), the 3rd steel pipe (6), first flexible rubber hose (7), first pipe clamp (8), second flexible rubber hose (9), second pipe clamp (10), container (11), end socket (12), outer computer (13), cover plate (21), joint (19) and nitrogen cylinder (14), it is characterized in that described cover plate (21) is installed on the upper surface of container (11), the bottom of described first steel pipe (2) is contained in the container (11), have a plurality of permeability holes (2-1) on the tube wall of first steel pipe (2) bottom, be fixed with end socket (12) on the lower surface of first steel pipe (2), the upper end of described first steel pipe (2) is passed cover plate (21) and is contained in the joint (19), the outer wall of described joint (19) is threaded with nut (3), have on the upper surface of described nut (3) by hole (3-1), the sidewall of described nut (3) has two radial holes (3-2), described humidity sensor (4) is arranged in the nut (3), the hole (3-1) of passing through that the output terminal of described humidity sensor (4) passes on the nut (3) is connected with outer computer (13), the bottom of described second steel pipe (5) is arranged in first steel pipe (2), the radial hole (3-2) that the top of described second steel pipe (5) is passed on nut (3) sidewall is connected with an end of first flexible rubber hose (7), the other end of described first flexible rubber hose (7) is connected with nitrogen cylinder (14), described first pipe clamp (8) is installed on first flexible rubber hose (7), one end of described the 3rd steel pipe (6) is installed in another radial hole (3-2) on nut (3) sidewall, the other end of described the 3rd steel pipe (6) is connected with second flexible rubber hose (9), and described second pipe clamp (10) is installed on second flexible rubber hose (9).
2. according to the described concrete permeability measurement apparatus of claim 1, it is characterized in that described a plurality of permeability hole (2-1) evenly is opened on the tube wall of first steel pipe (2) bottom.
3. according to the described concrete permeability measurement apparatus of claim 1, it is characterized in that it also comprises penstock (15), valve (16), tensimeter (17) and pressue device (18), one end of described penstock (15) passes cover plate (21) and inserts in the container (11), the other end of penstock (15) is equipped with pressue device (18), described valve (16) is installed on the penstock (15) away from pressue device (18) one ends, and described tensimeter (17) is installed on the penstock (15) between pressue device (18) and the valve (16).
4. according to the described concrete permeability measurement apparatus of claim 3, it is characterized in that it also comprises seal (20), described seal (20) is arranged on the junction of first steel pipe (2) and cover plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810064976XA CN101319982B (en) | 2008-07-23 | 2008-07-23 | Concrete permeability measurement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810064976XA CN101319982B (en) | 2008-07-23 | 2008-07-23 | Concrete permeability measurement apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101319982A CN101319982A (en) | 2008-12-10 |
| CN101319982B true CN101319982B (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810064976XA Expired - Fee Related CN101319982B (en) | 2008-07-23 | 2008-07-23 | Concrete permeability measurement apparatus |
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| Country | Link |
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| CN (1) | CN101319982B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2545433B (en) * | 2015-12-15 | 2017-12-20 | Grafmarine | Power generation and cell storage apparatus |
| CN105910970A (en) * | 2016-04-11 | 2016-08-31 | 黄显彬 | Concrete impermeability test method and test apparatus thereof |
| 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 |
| CN106567541B (en) * | 2016-09-27 | 2018-11-20 | 浙江省交通工程建设集团有限公司 | A kind of multifunction formboard connector |
| CN107976526A (en) * | 2017-11-25 | 2018-05-01 | 贵阳永青仪电科技有限公司 | A kind of soil moisture detection device |
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2008
- 2008-07-23 CN CN200810064976XA patent/CN101319982B/en not_active Expired - Fee Related
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| CN101319982A (en) | 2008-12-10 |
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| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Address after: 100024 Beijing, Guanzhuang, Chaoyang District, Zhou Patentee after: CCCC FIRST HIGHWAY ENGINEERING GROUP Co.,Ltd. Address before: Project Manager Department of Harbin-Dalian Railway Passenger Dedicated Line No.1 Xinxing Road, Shuangcheng New District, Heilongjiang Province, 150100 Patentee before: CCCC FIRST HIGHWAY ENGINEERING Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20210723 |
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| CF01 | Termination of patent right due to non-payment of annual fee |