CN106769821A - The laddering test device and method of a kind of reinforcing steel corrosion rate - Google Patents
The laddering test device and method of a kind of reinforcing steel corrosion rate Download PDFInfo
- Publication number
- CN106769821A CN106769821A CN201611217601.3A CN201611217601A CN106769821A CN 106769821 A CN106769821 A CN 106769821A CN 201611217601 A CN201611217601 A CN 201611217601A CN 106769821 A CN106769821 A CN 106769821A
- Authority
- CN
- China
- Prior art keywords
- reinforcing bar
- liquid bath
- liquid
- laddering
- fixed pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/006—Investigating resistance of materials to the weather, to corrosion, or to light of metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses the laddering test device and method of a kind of reinforcing steel corrosion rate.Test device includes the container of frame, weighing instrument, computer system, reinforcing bar lowering means and dress liquid, and the data output of weighing instrument terminates the processor of computer system；Reinforcing bar lowering means includes reinforcing bar chuck and chuck descending mechanism；Chuck descending mechanism includes micro pump, float, liquid bath, hoist cable, the first fixed pulley and the second fixed pulley, and liquid bath is arranged in container top, and float is placed in liquid bath；First fixed pulley is arranged in the bottom of liquid bath, positioned at the lower section of float；Second fixed pulley is arranged in the side of the upper end of liquid bath, positioned at the surface of reinforcing bar chuck；The lower end of hoist cable is connected with reinforcing bar chuck, and the hoist cable drawn from reinforcing bar chuck successively bypasses the second fixed pulley and the first fixed pulley, and upper end is connected with float；The entrance of micro pump is connected with liquid bath bottom.Simple structure of the present invention, low cost, easy to operate, measuring accuracy can meet detection needs.
Description
[technical field]
The present invention relates to steel bar corrosion situation determine, more particularly to a kind of reinforcing steel corrosion rate laddering test device and side
Method.
[background technology]
In field of civil engineering, reinforcing bar is to use most commonly used construction material in the world at present with concrete, according to statistics
Understand that current 80% building structure is formed by concreting.But due to outside environmental elements such as chlorion, dioxy
The corrosion function of the effects such as change carbon causes the reinforcing bars rusting in concrete, and corrosion can cause that the section of reinforcing bar is reduced, cause
The decline of stress concentration and steel bar mechanics performance, this has had a strong impact on the security and durability of works.The corrosion ratio of reinforcing bar
With reinforcing bar remaining cross-section along the axial distribution situation in section be study steel bar corrosion important parameter.
A kind of measure device of reinforcing steel corrosion rate of the disclosure of the invention of Patent No. CN201410151435.6 and measure side
Method.The measure device of reinforcing steel corrosion rate includes the container of weighing instrument, computer system, fixture and dress liquid, computer system bag
Processor, input unit and display device are included, the data output of weighing instrument terminates the processor of computer system, including under reinforcing bar
Falling unit, reinforcing bar lowering means includes frame, described fixture, jig lifting mechanism and perceives the straight line position of fixture lifting distance
Displacement sensor, the processor of the displacement data output termination computer system of linear displacement transducer.The invention is simple to operate, inspection
Survey efficiency high, accuracy of detection high, can accurately obtain along reinforcing bar length direction maximum corrosion ratio and the rust along reinforcing bar length direction
Erosion rate curve.But the assay device structures of the reinforcing steel corrosion rate of the invention are complicated, and cost is high.
[content of the invention]
The technical problem to be solved in the present invention is to provide a kind of simple structure, the laddering survey of the reinforcing steel corrosion rate of low cost
Trial assembly is put.
Another technical problem to be solved of the invention is to provide a kind of test device simple structure, the reinforcing bar rust of low cost
The laddering method of testing of erosion rate.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is, a kind of laddering survey of reinforcing steel corrosion rate
Trial assembly is put, including frame, weighing instrument, computer system, reinforcing bar lowering means and dress liquid container, computer system include place
Reason device, input unit and display device, the data output of weighing instrument terminate the processor of computer system；Reinforcing bar lowering means bag
Include reinforcing bar chuck and chuck descending mechanism；Chuck descending mechanism includes micro pump, float, liquid bath, hoist cable, the first fixed pulley and the
Two fixed pulleys, liquid bath is arranged in container top, and float is placed in liquid bath；First fixed pulley is arranged in the bottom of liquid bath, is located at
The lower section of float；Second fixed pulley is arranged in the side of the upper end of liquid bath, positioned at the surface of reinforcing bar chuck；The lower end of hoist cable with
Reinforcing bar chuck is connected, and the hoist cable drawn from reinforcing bar chuck successively bypasses the second fixed pulley and the first fixed pulley, and upper end connects with float
Connect；The entrance of micro pump is connected with liquid bath bottom.
Above-described laddering test device, including disturbance damper, disturbance damper include the housing of sealing, housing
Include the liquid same with liquid bath, the top of liquid level is the gas of sealing in housing, the liquid in disturbance damper passes through
Fluid connection in pipeline and liquid bath；The entrance of micro pump and the fluid connection for disturbing damper bottom.
Above-described laddering test device, described float is foam block.
Above-described laddering test device, described float is hemispherical or up big and down small truncated cone-shaped.
Above-described laddering test device, described weighing instrument is recorder of weighing automatically.
Above-described laddering test device, the liquid in disturbance damper and liquid bath is saturated aqueous common salt.
A kind of laddering method of testing of reinforcing steel corrosion rate, including with above-mentioned test device, continuous mode includes following
Step：
701st, test fluid is contained in container, the lower end of tested reinforcing bar is inserted into the liquid level of test fluid；
702nd, according to the cross-sectional area inside the flow and liquid bath of micro pump, when calculating micro pump starts, liquid level in liquid bath
The speed of decline；
703rd, micro pump is started, liquid level declines with liquid bath, and tested reinforcing bar is progressed into the test fluid of container；From
Dynamic recorder of weighing is spaced the qualitative data to reading and is transported to qualitative data and corresponding time value according to set time
Computer system；
704th, speed of the computer system according to, qualitative data and corresponding time value calculate that Corrosion Reinforcement is remaining to be cut
The axially distributed data of face amount and/or corrosion ratio.
The laddering test device simple structure of reinforcing steel corrosion rate of the present invention, low cost, easy to operate, measuring accuracy can be with
Meet detection needs.
[brief description of the drawings]
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
Fig. 1 is the structural representation of the laddering test device of embodiment of the present invention reinforcing steel corrosion rate.
[specific embodiment]
The structure of the laddering test device of embodiment of the present invention reinforcing steel corrosion rate is as shown in figure 1, including frame 13, automatic
Weigh recorder 10, computer system, reinforcing bar lowering means and dress liquid container.
Container 11 is placed on weighs on recorder 10 automatically.
Computer system includes processor, input unit and display device, the data output end of recorder 10 of weighing automatically
Connect the processor of computer system.
Reinforcing bar lowering means includes reinforcing bar chuck 1 and chuck descending mechanism.
Chuck descending mechanism includes micro pump 2, disturbance damper, float 3, liquid bath 4, nylon wire 5, fixed pulley 6 and fixed cunning
Wheel 7, liquid bath 4 is fixed in frame 13, is arranged in the top of container 11, and float 3 is placed in liquid bath 4, has saturated concentration in liquid bath 4
Saline solution 401, float 3 is the foam block of rectangle or hemispherical or up big and down small truncated cone-shaped, swims in saturated aqueous common salt
On 401 liquid level.
Fixed pulley 6 is arranged on the bottom of liquid bath 4, positioned at the lower section of float 3；Fixed pulley 7 is arranged on the one of the upper end of liquid bath 4
Side, positioned at the surface of reinforcing bar chuck 1.
Be connected with reinforcing bar chuck 1 as the lower end of the nylon wire 5 of hoist cable, from reinforcing bar chuck 1 draw the priority of nylon wire 5 around
Fixed pulley 7 and fixed pulley 6 are crossed, finally, the upper end of nylon wire 5 is connected with float 3.
Disturbance damper includes the housing 8 of sealing, the saline solution equipped with the saturated concentration same with liquid bath 4 in housing 8
801, the Packed gas 802 in top of the liquid level of saline solution 801 of saturated concentration in housing 8, the saturation food in disturbance damper
Salt solution 801 is connected by pipeline 15 with the saturated aqueous common salt 401 in liquid bath 4.The entrance of micro pump 2 and disturbance damper bottom
Saturated aqueous common salt 801 is connected.
Reinforcing bar chuck 1 is clipped in the top of tested reinforcing bar 100, and test fluid 1101 is contained in container 11, and tested reinforcing bar 100 falls,
Lower end is entered into the liquid level of test fluid.Test fluid 1101 is preferably with the less liquid of the proportions such as methyl alcohol, ethanol or gasoline.
The type of micro pump 2 is a lot, and it is the Mini gear pump of the JONSN of 0.2CC/rev that the present embodiment uses every discharge capacity that turns,
When rotating speed is 750rpm, flow is 0.15L/min, and when rotating speed is 3300rpm, flow is 0.66L/min.
If rotating speed is 750rpm, flow is 0.15L/min, and the cross section inside liquid bath 4 is 0.25M2When, liquid bath 4
The speed that liquid level declines is 0.01mm/s, and the speed that tested reinforcing bar declines immersion test fluid is also 0.01mm/s.
If rotating speed is 3300rpm, flow is 0.66L/min, and the cross section inside liquid bath 4 is 1.1M2When, liquid bath 4
The speed that liquid level declines is 0.01mm/s, and the speed that tested reinforcing bar declines immersion test fluid is also 0.01mm/s.
The test principle of above example of the present invention is that being drawn water by micro pump 2 causes saturated aqueous common salt 401 in liquid bath 4
Liquid level decline, the saturated aqueous common salt of extraction discharges through the discharging tube 202 of micro pump 2, the speed control liquid bath that draws water of micro pump 2
Liquid level decrease speed in 4, the float 3 that drive is floated in liquid bath 4 on liquid level declines, the container so that tested reinforcing bar 100 submerges
In test fluid 1101 in 11, the flow that micro pump 2 draws water determines that reinforcing bar enters the speed and depth of water, can be avoided examination
Test the error that operating personnel's range estimation reinforcing bar descending depth brings.The automatic recorder of weighing for using can not only weigh data, also
Can be recorded according to the automatic qualitative data to being read of certain time interval, it is to avoid cumbersome manual operation, reality
The full-automation of a whole set of transposition is showed.
Using the big light foam plate of area as float, it is ensured that float has enough buoyancy to float on liquid level and reduce
The error of experiment.
The test fluid filled in container 11 is methyl alcohol, ethanol or gasoline.Disturbance damper and the contained liquid of liquid bath 4 are full
And sodium chloride solution.
Reinforcing bar declines the i numerical value m that weighs of displacement interval valuei, then reinforcing bar decline i displacement interval value after sectional area S
i：
Wherein, mi--- the numerical value of weighing during i moment；
G --- acceleration of gravity；
The density of ρ --- liquid；
The distance that reinforcing bar declines in h-unit interval；
If reinforcing bar original cross-sectional area is S0, according to S0And SiObtain declining i setting displacement interval along reinforcing bar length direction
Corrosion ratio C during valuei：
The test device of reinforcing steel corrosion rate of the present invention is simple, simple to operate, detection efficiency is high, accuracy of detection is high, whole inspection
Survey full-automatic, when on-test in addition to starting device, without manual operation, can accurately obtain maximum along reinforcing bar length direction
Corrosion ratio.
When tested reinforcing bar 100 submerges in container 11, the difference of submerged depth, buoyancy value is different, can cause float 3 in measurement
During draft change, during the container 11 submerged for tested reinforcing bar 100, it can be subtracted from the less solution of density
It is small to change brought error by buoyancy value.Optional solution has：Methyl alcohol, ethanol and gasoline.(assuming that from a diameter of 16mm's
Tested reinforcing bar, its length is 50cm, and the density of tested reinforcing bar 100 is 7.8g/cm3, by m=ρ π r2H can be obtained, and its quality is
783.7g, understands that gravity is 7.68N by G=mg, and when in the gasoline that its whole is submerged in container, the density of gasoline is 0.7g/
cm3, by F=ρ gvRow=ρ g π r2H can be obtained, and its buoyancy value is：0.689N, if container content water, its buoyancy value is：0.985N, adopts
Gasoline solution is relatively reduced error using waterDiscounting for buoyancy effect, using maximum
Area be 0.5 square metre of cystosepiment as float, the density of saturated nacl aqueous solution is 1.12g/cm3, by
Can obtain, submergence depth of the cystosepiment in saturated nacl aqueous solution is：1.4mm, if considering buoyancy effect, cystosepiment is in saturation
Submergence depth in sodium chloride solution is：1.27mm,That is test fluid buoyancy is for tested
The influence of the mobile accuracy of reinforcing bar 100 is 0.026%, be can be ignored；If to certainty of measurement not being very high, float and liquid bath
Size can reduce；The float of hemisphere or up big and down small truncated cone-shaped is conducive to reducing test fluid buoyancy because up big and down small
For the influence of tested reinforcing bar mobile accuracy.
The axial distribution situation test device simple structure of the Corrosion Reinforcement remaining cross-section of above example of the present invention, cost
Low, easy to operate, measuring accuracy can meet detection needs.
Claims (7)
1. a kind of laddering test device of reinforcing steel corrosion rate, including frame, weighing instrument, computer system, reinforcing bar lowering means
With dress liquid container, computer system include processor, input unit and display device, weighing instrument data output termination meter
The processor of calculation machine system；Reinforcing bar lowering means includes reinforcing bar chuck and chuck descending mechanism；Characterized in that, chuck declines machine
Structure includes micro pump, float, liquid bath, hoist cable, the first fixed pulley and the second fixed pulley, and liquid bath is arranged in container top, and float is put
Put in liquid bath；First fixed pulley is arranged in the bottom of liquid bath, positioned at the lower section of float；Second fixed pulley is arranged in the upper of liquid bath
The side at end, positioned at the surface of reinforcing bar chuck；The lower end of hoist cable is connected with reinforcing bar chuck, from the hoist cable elder generation that reinforcing bar chuck is drawn
After bypass the second fixed pulley and the first fixed pulley, upper end is connected with float；The entrance of micro pump is connected with liquid bath bottom.
2. laddering test device according to claim 1, it is characterised in that including disturbance damper, disturb damper
Including the housing for sealing, housing includes the liquid same with liquid bath, and the top of liquid level is the gas of sealing, disturbance in housing
Liquid in damper is by the fluid connection in pipeline and liquid bath；The entrance of micro pump connects with the liquid of disturbance damper bottom
It is logical.
3. laddering test device according to claim 1, it is characterised in that described float is foam block.
4. laddering test device according to claim 1, it is characterised in that described float be hemispherical or it is upper it is big under
Small truncated cone-shaped.
5. laddering test device according to claim 1, it is characterised in that described weighing instrument is automatic record of weighing
Instrument.
6. laddering test device according to claim 2, it is characterised in that the liquid in disturbance damper and liquid bath is
Saturated aqueous common salt.
7. the laddering method of testing of a kind of reinforcing steel corrosion rate, it is characterised in that including the reinforcing steel corrosion rate described in claim 1
Laddering test device, continuous mode comprises the following steps：
701st, test fluid is contained in container, the lower end of tested reinforcing bar is inserted into the liquid level of test fluid；
702nd, according to the cross-sectional area inside the flow and liquid bath of micro pump, when calculating micro pump starts, liquid level declines in liquid bath
Speed；
703rd, micro pump is started, liquid level declines with liquid bath, and tested reinforcing bar is progressed into the test fluid of container；It is automatic to claim
Weight recorder is spaced the qualitative data to reading and qualitative data and corresponding time value is transported into calculating according to set time
Machine system；
704th, speed of the computer system according to, qualitative data and corresponding time value calculate Corrosion Reinforcement remaining cross-section value
Axially distributed data and/or corrosion ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217601.3A CN106769821B (en) | 2016-12-26 | 2016-12-26 | Progressive testing device and method for corrosion rate of steel bars |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217601.3A CN106769821B (en) | 2016-12-26 | 2016-12-26 | Progressive testing device and method for corrosion rate of steel bars |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106769821A true CN106769821A (en) | 2017-05-31 |
| CN106769821B CN106769821B (en) | 2023-06-20 |
Family
ID=58925890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611217601.3A Active CN106769821B (en) | 2016-12-26 | 2016-12-26 | Progressive testing device and method for corrosion rate of steel bars |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106769821B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876296U (en) * | 2010-11-18 | 2011-06-22 | 岳仁福 | On-line mud layer height detector of settling tank |
| CN103645105A (en) * | 2013-11-19 | 2014-03-19 | 河海大学 | Apparatus and testing method used for accurate testing of corrosion rate of steel bars along length directions |
| CN103983558A (en) * | 2014-04-16 | 2014-08-13 | 深圳大学 | Determination apparatus and determination method for reinforcing steel bar corrosion rate |
| JP5611417B1 (en) * | 2013-05-27 | 2014-10-22 | 学校法人 中村産業学園 | Quality evaluation method based on permeability test of concrete structures |
| CN104198316A (en) * | 2014-08-11 | 2014-12-10 | 深圳大学 | Measuring device and measuring method for axial-distribution data of section of rusted steel bar |
| CN206311480U (en) * | 2016-12-26 | 2017-07-07 | 深圳大学 | A kind of laddering test device of reinforcing steel corrosion rate |
-
2016
- 2016-12-26 CN CN201611217601.3A patent/CN106769821B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201876296U (en) * | 2010-11-18 | 2011-06-22 | 岳仁福 | On-line mud layer height detector of settling tank |
| JP5611417B1 (en) * | 2013-05-27 | 2014-10-22 | 学校法人 中村産業学園 | Quality evaluation method based on permeability test of concrete structures |
| CN103645105A (en) * | 2013-11-19 | 2014-03-19 | 河海大学 | Apparatus and testing method used for accurate testing of corrosion rate of steel bars along length directions |
| CN103983558A (en) * | 2014-04-16 | 2014-08-13 | 深圳大学 | Determination apparatus and determination method for reinforcing steel bar corrosion rate |
| CN104198316A (en) * | 2014-08-11 | 2014-12-10 | 深圳大学 | Measuring device and measuring method for axial-distribution data of section of rusted steel bar |
| CN206311480U (en) * | 2016-12-26 | 2017-07-07 | 深圳大学 | A kind of laddering test device of reinforcing steel corrosion rate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106769821B (en) | 2023-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2725340B1 (en) | Permeameter for in-situ measurement of saturated hydraulic conductivity | |
| CN107675734B (en) | A kind of underwater directional vehicle construction dynamic monitoring method | |
| CN110031021A (en) | A kind of hydrostatic level on-line calibration system and its calibration method | |
| CN104280096A (en) | Self-floating water level tester | |
| CN206311480U (en) | A kind of laddering test device of reinforcing steel corrosion rate | |
| CN110208497A (en) | A kind of portable soil specific yield tester and test method | |
| CN207232192U (en) | A kind of flow rate measuring device based on pressure sensitive | |
| CN109186687A (en) | Salt pond concentration and liquid level detection device suit | |
| CN106769821A (en) | The laddering test device and method of a kind of reinforcing steel corrosion rate | |
| CN206311457U (en) | The automatic testing equipment that a kind of Corrosion Reinforcement section is axially distributed | |
| CN107422142A (en) | Pressure method stirs current Simple speed measuring device and speed-measuring method | |
| CN208547406U (en) | A kind of oily whey interface liquid level gauge of hydrometer method measurement | |
| CN206311458U (en) | A kind of test device of Corrosion Reinforcement area of section | |
| CN216198061U (en) | Well drilling overflow leakage monitoring device | |
| CN102435266B (en) | The permanent head water system of flow measurement device | |
| US11692981B2 (en) | Device for evaluating damage of fracturing fluid to reservoir and operation method thereof | |
| CN110567845A (en) | Liquid density monitoring device and method | |
| CN106769602A (en) | Automatic testing equipment and method that a kind of Corrosion Reinforcement section is axially distributed | |
| CN106596316A (en) | Device and method for testing area of cross section of rusted reinforcing steel bar | |
| CN211235856U (en) | Soil sample disintegration test device under action of flowing water | |
| CN113089675A (en) | Method and device for measuring height difference between material conveying guide pipe and concrete liquid level | |
| CN212058976U (en) | Rod-type level gauge suitable for sewage pump station | |
| CN204944624U (en) | A kind of measurement mechanism of oil-water interface position | |
| CN110044771A (en) | A kind of micro measure of the change device of Liquid Concentration and its measurement method | |
| CN206192839U (en) | Infiltration appearance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |