CN205209921U - RIM testing arrangement - Google Patents
RIM testing arrangement Download PDFInfo
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- CN205209921U CN205209921U CN201520888260.7U CN201520888260U CN205209921U CN 205209921 U CN205209921 U CN 205209921U CN 201520888260 U CN201520888260 U CN 201520888260U CN 205209921 U CN205209921 U CN 205209921U
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Abstract
The utility model discloses a RIM testing arrangement. Including test host computer and at least one test tank who is equipped with cathodic electrolysis liquid, the negative pole has been put in the cathodic electrolysis liquid, there is an inclined plane test tank inside, and the inclined plane overhead has the rubber sleeve of slope, inside concrete sample and the anode liquor of being equipped with of rubber sleeve, and the concrete sample is fixed in the rubber sleeve bottom, has put the positive pole in the anode liquor, positive pole and negative pole are connected with the test host computer respectively, its characterized in that, and including sealed box, test tank arrange in sealed box, including leading to the line hole on the tank wall of sealed box, positive pole and negative pole with test the electric wire that the host computer is connected and pass the logical line hole of sealing up the box. The utility model discloses an adopt the environment of inclosed experiment, can guarantee not only that electrolyte does not take place to decompose, moreover can the inside temperature of single control box, test data is comparatively accurate, reliably spends higherly.
Description
[technical field]
The utility model relates to concrete surface layer iodide ion penetration testing, particularly relates to a kind of RIM proving installation.
[background technology]
Reinforced concrete structure combines reinforcing bar and concrete advantage, and cost is lower, and be the preferred forms in civil engineering structure design, its range of application widely, is the most frequently used version.But this does not illustrate that reinforced concrete structure is out of this world.In fact, between more than 100 year that concrete is applied to civil engineering work, a large amount of reinforced concrete structures is premature failure due to various reason, do not reach predetermined Years Of Service, the drag deficiency wherein had plenty of due to structural design causes, the unfavorable change of having plenty of due to working load causes, but is more because the permanance deficiency of structure causes.The particularly xoncrete structure in coastal and offshore area area, because marine environment is to concrete corrosion, causes steel bar corrosion and make structure generation earlier period damage, reducing the endurance quality of structure, this has become the major issue in Practical Project.At present, there are many test methods can evaluate the performance of agent on crack resistance of concrete chlorine ion binding capacity in laboratory, the process of osmosis that various permeability testing method is studied, the principle of institute's foundation are different, its final purpose is all the coefficient of diffusion calculating chlorion, thus contributes to the Accurate Prediction of structural life-time.Therefore, domestic and international correlative study mainly concentrates on chloride diffusion coefficient, but the mensuration of interior chloride ion-containing xoncrete structure coefficient of diffusion need to solve.
The ability of chloride-penetration resistance evaluates an efficiency index of durability of HPC with high, the most frequently used method of current measurement concrete filtration coefficient is unstable state migration tests (RCM), the method is set up by Tang at first, forms Build492 specification afterwards.But when inside concrete contains chlorion and content is too much time, in structure, chloride ion-containing also can move under electric field action, and meeting and indicator react.These two kinds effects all can have influence on the accuracy of RCM experimental result, when interior chloride ion-containing exceeds a threshold value, adopt the experimental technique of RCM can not measure the chloride diffusion coefficient of structure, need to adopt novel RIM method of testing.
RIM test and unstable state iodide ion rapid diffusion (RapidIodineMigration, RIM) test.But current RIM testing apparatus still uses RCM testing apparatus.
The patent No. a kind of concrete RCM chlorine ion dispersion coefficient & electric flux multifunctional tester that has been the disclosure of the invention of CN200820302173.9, comprises RCM chloride diffusion coefficient testing apparatus, electric flux testing apparatus and Test Host; RCM chloride diffusion coefficient testing apparatus comprises the solution vessel (10) that at least one is equipped with catholyte, is equipped with negative electrode (18) in catholyte (11); There is an inclined-plane inside of solution vessel, inclined-plane is equipped with an organic silicon rubber cover (16) tilted, organic silicon rubber cover is supported by support (12), concrete sample (25) and anolyte (14) are equipped with in its inside, concrete sample (25) is fixed on organic silicon rubber cover bottom, is equipped with anode (15) and temperature sensor (13) in anolyte.
Because RIM method of testing needs the medicine introducing iodide ion to be the Nacl that NaI, NaI are different from that RCM method of testing introduces chlorion.Sodium iodide has hygroscopy, absorbs moisture and lump in soft air.Contact with air, the free precipitation of iodine can be made, see that light easily decomposes.Therefore use above-mentioned RCM chloride diffusion coefficient testing apparatus to do RIM test fiduciary level not high, test data can not meet accuracy requirement.
[summary of the invention]
The technical problems to be solved in the utility model is to provide the higher RIM proving installation of a kind of test data fiduciary level.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of RIM proving installation, comprise Test Host, seal case and at least one the test flume of catholyte is housed, be equipped with negative electrode in catholyte; There is an inclined-plane test flume inside, inclined-plane is equipped with the rubber sleeve of inclination, and concrete sample and anolyte are equipped with in rubber sleeve inside, and concrete sample is fixed on bottom rubber sleeve, is equipped with anode in anolyte, and anode is connected with Test Host respectively with negative electrode; Described test flume is arranged in seal case, and the tank wall of seal case comprises threading hole, and the electric wire that anode and negative electrode are connected with Test Host is through the threading hole of seal case.
Above-described RIM proving installation, seal case is built with temperature control system, and temperature control system comprises mini air conditioner and temperature meter.
Above-described RIM proving installation, cover plate is equipped with at the top of test flume, and cover plate comprises threading hole, and the electric wire that anode and negative electrode are connected with Test Host is through the threading hole on cover plate.
Above-described RIM proving installation, test flume bottom surface is domatic, and the bottom of test flume connects discharging tube, and the entrance of discharging tube is positioned at domatic low spot position; Discharging tube is through the sidewall of seal case, and valve is equipped with in the outlet of discharging tube.
Above-described RIM proving installation, each test flume comprises multiple plurality of partitions, and test flume is separated into a plurality of sample fixing by dividing plate, and the inclined-plane of each sample fixing is equipped with described rubber sleeve.
Above-described RIM proving installation, comprises a plurality of test flume, and test flume is removably fixed on the base plate of seal case by screw.
Above-described RIM proving installation, described Test Host is Unsteady Casting ratio test instrument.
RIM proving installation of the present utility model adopts the environment of airtight test, not only can ensure that electrolytic solution does not decompose, and can control box interior temperature separately, and test data is comparatively accurate, and fiduciary level is higher.
[accompanying drawing explanation]
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is the front view of the utility model embodiment RIM proving installation.
Fig. 2 is the vertical view of the utility model embodiment RIM proving installation.
Fig. 3 is the right view of the utility model embodiment RIM proving installation.
Fig. 4 is that A in Fig. 2 is to cut-open view.
Fig. 5 is that B in Fig. 4 is to cut-open view.
Fig. 6 is that C in Fig. 4 is to cut-open view.
[embodiment]
The structure of the utility model embodiment RIM proving installation as shown in Figures 1 to 6, comprise the Unsteady Casting ratio test instrument 200 as Test Host and testing equipment 200, testing equipment 200 comprises the test flume 2 that seal case 1 that plastics make and three are equipped with catholyte, three test flumes 2 are arranged in juxtaposition, and each test flume 2 is removably fixed on the base plate of seal case 1 by 4 screws 20.Break down at test flume or need cleaning can loosen screw 20, test flume is taken out.
Test flume 2 is made up of rigid plastics.Have two pieces of dividing plates 203 in each test flume 2, test flume 2 is separated into three sample fixing by dividing plate 203.
A support is had in each sample fixing, support has the inclined-plane 201 of 30 °, inclined-plane 201 is equipped with the rubber sleeve 3 of inclination, concrete sample 300 and anolyte are equipped with in rubber sleeve 3 inside, concrete sample 300 is fixed on bottom rubber sleeve 3, is equipped with negative electrode spoon in catholyte; Be equipped with anode spoon in anolyte, anode spoon and negative electrode spoon are connected with Unsteady Casting ratio test instrument 200 respectively.
Three test flumes 2 are arranged in seal case 1, and cover plate 201 is equipped with at the top of test flume 2, cover plate 201 have three threading holes 202.Top board 101 monoblock type of seal case 1, open by a turning axle, top board 101 has 9 threading holes 102, anode spoon is connected with Unsteady Casting ratio test instrument 200 with the threading hole 102 of seal case 1 through the threading hole 202 on cover plate 201 with the electric wire 4 of negative electrode spoon.
Test flume 2 bottom surface is 5 ° domatic, and be convenient to waste liquid and discharged by gravity from the waste liquid port of domatic low spot, bottom test flume 2, the waste liquid port of domatic low spot connects discharging tube 6; Discharging tube 6 reaches outside through the sidewall of seal case 1, and valve 7 is equipped with in the outlet of discharging tube 6.
Seal case 1 is built with temperature control system, and temperature control system comprises mini air conditioner 5 and temperature meter 8, can control casing and be issued to temperature required for experiment at air-proof condition.There is provided good RIM to test test solution to deposit and reaction environment.
When the utility model embodiment carries out RIM test, utilize above-mentioned proving installation and at least one group of concrete sample, often group group concrete sample comprises three pieces of diameter 100mm, height 50mm cylinder specimen.For testing different concrete, three groups of different concrete samples can be made and test simultaneously.
Concrete sample will carry out pre-service, and pre-service comprises concrete sample upper and lower surface be under drying regime and is placed in vacuum tank and carries out application of vacuum; In 5 minutes, the air pressure in vacuum tank is down to 1-5kPa during application of vacuum, and vacuum tightness should be remained on lower 3 hours; When vacuum pump still operates, vacuum tank will be injected, by test specimen submergence with saturated aqua calcis.In test specimen submergence, within 1 hour, final vacuum container returns to normal pressure, and concrete sample soaks 20 hours at ambient pressure.
Concrete sample is except upper and lower surface, and the sealing of surrounded surface coating water barrier, as coating epoxy resin or paraffin water barrier seal.
Getting the comparatively smooth face of concrete is that penetration fact is positioned in rubber sleeve 3 down.Fill with the catholyte configured and anolyte to assigned address respectively, catholyte is the NaI solution of mass percent concentration 23.78%, the KOH aqueous solution of anolyte to be volumetric molar concentration be 0.3mol/L; And run Unsteady Casting ratio test instrument by the voltage set, electric current and time, energizing test is carried out to concrete sample.
After energizing test terminates, concrete sample is taken out from rubber sleeve, with tap water, the surface washing of concrete sample is clean immediately, along the axis of concrete sample on pressure testing machine, concrete sample is split into two semicylinders; After the splitting surface of concrete sample is slightly dry, first jet quality number percent is the acetum of 50%, and first jet quality number percent is the Potassiumiodate of 3%, then jet quality number percent is the starch suspension of 5%.Measure penetration depth of iodide ions.Then the iodide ion colour developing degree of depth of concrete sample is measured.
Iodide ion osmotic coefficient investigating method is with reference to NTBuild492-1999.11 " ChlorideMigrationCoefficientfromNon-steady-stateMigratio nExperiments " method or Standard for test methods of longterm performance and durability of ordinary concrete standard (GB/T50082-2009).
Claims (7)
1. a RIM proving installation, comprises the test flume that Test Host is equipped with catholyte with at least one, is equipped with negative electrode in catholyte; There is an inclined-plane test flume inside, inclined-plane is equipped with the rubber sleeve of inclination, and concrete sample and anolyte are equipped with in rubber sleeve inside, and concrete sample is fixed on bottom rubber sleeve, is equipped with anode in anolyte; Anode is connected with Test Host respectively with negative electrode, it is characterized in that, comprise seal case, described test flume is arranged in seal case, the tank wall of seal case comprises threading hole, and the electric wire that anode and negative electrode are connected with Test Host is through the threading hole of seal case.
2. RIM proving installation according to claim 1, is characterized in that, seal case is built with temperature control system, and temperature control system comprises mini air conditioner and temperature meter.
3. RIM proving installation according to claim 1, is characterized in that, cover plate is equipped with at the top of test flume, and cover plate comprises threading hole, and the electric wire that anode and negative electrode are connected with Test Host is through the threading hole on cover plate.
4. RIM proving installation according to claim 1, is characterized in that, test flume bottom surface is domatic, and the bottom of test flume connects discharging tube, and the entrance of discharging tube is positioned at domatic low spot position; Discharging tube is through the sidewall of seal case, and valve is equipped with in the outlet of discharging tube.
5. RIM proving installation according to claim 1, is characterized in that, each test flume comprises multiple plurality of partitions, and test flume is separated into a plurality of sample fixing by dividing plate, and the inclined-plane of each sample fixing is equipped with described rubber sleeve.
6. RIM proving installation according to claim 1, is characterized in that, comprises a plurality of test flume, and test flume is removably fixed on the base plate of seal case by screw.
7. RIM proving installation according to claim 1, is characterized in that, described Test Host is Unsteady Casting ratio test instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520888260.7U CN205209921U (en) | 2015-11-09 | 2015-11-09 | RIM testing arrangement |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520888260.7U CN205209921U (en) | 2015-11-09 | 2015-11-09 | RIM testing arrangement |
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| CN205209921U true CN205209921U (en) | 2016-05-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403486A (en) * | 2015-11-09 | 2016-03-16 | 深圳大学 | RIM testing device and RIM testing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403486A (en) * | 2015-11-09 | 2016-03-16 | 深圳大学 | RIM testing device and RIM testing method |
| CN105403486B (en) * | 2015-11-09 | 2018-12-14 | 深圳大学 | A kind of RIM test device and RIM test method |
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