CN202486031U - Test device for dry-wet circulation accelerated corrosion of concrete - Google Patents
Test device for dry-wet circulation accelerated corrosion of concrete Download PDFInfo
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- CN202486031U CN202486031U CN201120568103XU CN201120568103U CN202486031U CN 202486031 U CN202486031 U CN 202486031U CN 201120568103X U CN201120568103X U CN 201120568103XU CN 201120568103 U CN201120568103 U CN 201120568103U CN 202486031 U CN202486031 U CN 202486031U
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- corrosion
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- drying
- dry
- corrosion test
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Abstract
A test device for dry-wet circulation accelerated corrosion of concrete comprises an insulation corrosion test box. A heating element is arranged on the insulation corrosion test box, and at least two loading devices are arranged on the insulation corrosion test box. The loading device comprises a dry-wet circulation corrosion test box, a four-column type spring loading frame used for loading a concrete test sample and a hydraulic lifter. The dry-wet circulation corrosion test box is arranged on a piston rod of the hydraulic lifter, the four-column type spring loading frame is connected with the insulation corrosion test box through a cantilever metal suspension rod, and the four-column type spring loading frame is located above the dry-wet circulation corrosion test box. The test device for dry-wet circulation accelerated corrosion of the concrete can test a long-term damage degradation rule of structural concrete and predict service life of the structural concrete by simulating ocean environment or inland environment through various indoor factors.
Description
One, technical field
The utility model belongs to civil engineering material experiment field, relates in particular to the research of cement concrete permanance, particularly is in a kind of accelerated corrosion test research method of concrete under multifactor coupling under the drying and watering cycle condition.
Two, background technology
The drying and watering cycle condition is one of essential condition of concrete durability research, is one of essential environmental factors that is in concrete component deterioration in the SEA LEVEL VARIATION district.If want complete simulated field environment to carry out the drying and watering cycle experiment, the time that then needs is longer, therefore needs the laboratory accelerated tests of short period to come the simulated field environment that the permanance of concrete under the drying and watering cycle condition studied.Drying and watering cycle experiment majority before this is through a dead lift test specimen, perhaps uses automatic equipments such as drying and watering cycle case.
The former is the huge consumption to manpower, and works as test specimen quantity more for a long time, because of when carrying, having consumed the more time, is difficult to assurance drying time and soak time that accelerated tests designed, and is bigger to the experimental error influence.China is the technology prematurity still of control drying and watering cycle case automatically now, is difficult to guarantee control environment exactly simultaneously temperature and relative humidity.And immersion process is many to carry out in airtight casing, is difficult to test specimen temperature inside and relative humidity are monitored, and can support the method for testing to be restricted.Therefore the utlity model has certain practical value.
Three, utility model content
Technical matters: to existing drying and watering cycle accelerated test method; Simplified method labour intensity is big; Automatically control drying and watering cycle case is difficult to long-term operate as normal and the test specimen built-in attribute is carried out the defective of difficulty of monitoring rate, and the purpose of the utility model provides a kind of concrete drying and watering cycle accelerated corrosion test device under chemistry-mechanics coupling of laborsaving highly effective.
Technical scheme:A kind of concrete drying and watering cycle accelerated corrosion test device; Comprise: insulation corrosion experiment case; On insulation corrosion experiment case, be provided with heating element, be provided with at least 2 chargers at insulation corrosion experiment case, described charger comprises: the drying and watering cycle corrosion test chamber of built-in corrosive liquid, be used for four-column type spring-loaded frame and hydraulic hoist that concrete sample loads; Said drying and watering cycle corrosion test chamber is located on the piston rod of hydraulic hoist; Said four-column type spring-loaded frame is connected in insulation corrosion experiment case through cantilever metal suspension rod, and said four-column type spring-loaded chord position is in the top of drying and watering cycle corrosion test chamber.
Beneficial effect:Compare with existing apparatus, the utlity model has following characteristics:
The principal feature of the utility model is by inorganic heat preservation drying experiment chamber (case) constant temperature and humidity condition and cantilever mounted metal suspension rod to be provided; The corrosion spool that adopts four post spring stainless steel loading frames to load or not load is fixed or is hung on the cantilever metal suspension rod, guarantees that through manual or electric hydaulic up-down drying and watering cycle corrosion test chamber test specimen regularly soaks and drying cycles; Carry out concrete drying and watering cycle accelerated corrosion test according to this, simulate the long-term damage deterioration rule of marine environment or landlocked environmental testing structural concrete and predict its service life with indoor multifactor accelerated corrosion test.
(1) because the test period cycle long (reaching 1 ~ 2 year); Loading specimen heavy (greater than 30kg); Adopt hydraulic lift to control the height of immersion corrosion case; To reach the purpose of carrying out drying and watering cycle accelerated corrosion experiment, hundreds of times carrying test specimens have been saved and a large amount of manpowers and the time loss that produce.
(2) can control experimental temperature and relative humidity fast and exactly through Temperature and Humidity Control and heating arrangement, improved existing automatic drying and watering cycle case Inlet and outlet water slow, shortcomings such as wet slow and equipment performance poor stability fall.
(3) test specimen is not in the airtight fully device, can monitor test specimen built-in attribute Changing Pattern through imbedding means such as probe.
(4) can place the test specimen that loads or do not load in corrosion case bottom, as the test specimen of long period of soaking; Carry out simultaneously with drying and watering cycle accelerated corrosion experiment (load or do not load), accomplished " a tractor serves several purposes ", improved service efficiency.
(5) can adopt a plurality of corrosion casees to make an experiment simultaneously, under the environment of different etchant solutions, efficiently carry out many group tests simultaneously.
Four, description of drawings
Fig. 1 is the left view of the utility model embodiment.
Fig. 2 is the front view of the utility model embodiment
Among the figure,
1. cantilever metal suspension rod
2. drying and watering cycle corrosion test chamber
3. etchant solution
4. concrete sample
5. four-column type spring-loaded frame
6. be incubated the corrosion experiment case
7. hydraulic hoist
9. etchant solution
a
10. etchant solution
b
11. etchant solution
c
Five, embodiment
A kind of concrete drying and watering cycle accelerated corrosion test device; Comprise: insulation corrosion experiment case 6; On insulation corrosion experiment case 6, be provided with heating element 8, be provided with at least 2 chargers at insulation corrosion experiment case 6, described charger comprises: the drying and watering cycle corrosion test chamber 2 of built-in corrosive liquid, be used for four-column type spring-loaded frame 5 and hydraulic hoist 7 that concrete sample 4 loads; Said drying and watering cycle corrosion test chamber 2 is located on the piston rod of hydraulic hoist 7; Said four-column type spring-loaded frame 5 is connected in insulation corrosion experiment case 6 through cantilever metal suspension rod 1, and said four-column type spring-loaded frame 5 is positioned at the top of drying and watering cycle corrosion test chamber 2.
The chief component of the utility model is following:
1. inorganic light weight thermal insulation corrosion experiment case and temperature and humidity control device (30～60 ℃ adjustable)
The main effect of insulation corrosion experiment case is the heat leakage of insulation, constant temperature and humidity, minimizing internal and external environment.Temperature and humidity control in the experimental box comes from heating element, and temperature can be regulated in 30～60 ℃ of scopes automatically, and relative humidity is minimum to reach 30%.
2. stainless steel charger
Adopt four post spring stainless steel loading frames, test specimen is carried out bending load.The stiffness coefficient of spring is 200N/mm.
3. cantilever metal suspension rod
Employing is installed in the insulation corrosion experiment case cantilevered metal suspension rod and fixes the loading of corrosion spool and loading specimen not.
Hydraulic lift and the corrosion case
Soak the corrosion test casing that test specimen uses and be fixed on the hydraulic lift, but this system's free lifting and is regulated differing heights, make corrosion spool can be in the corrosive liquid as required or in the dry air.
It is following to utilize the utility model to carry out the drying and watering cycle accelerated corrosion experimental procedure of loading specimen:
A. in the inorganic heat preservation experimental box that heating and temperature and humidity control device, cantilever metal suspension rod and hydraulic lift Installation and Debugging is good, dispose one or more etchant solution (etchant solutions then
a,
bWith
c), put into one or more corrosion casees as etchant solution.
B. test specimen is loaded in the four post spring loading frames, and be fixed on the cantilever metal suspension rod.
C. after temperature is to dry 48h earlier under 60 ℃ of conditions; Carry out wetting-drying test, test specimen is put into corrosive liquid soak (8h) → be warming up to 60 ℃ (2h) → in that 60 ℃ of freeze-day with constant temperature test specimens (36h) → be cooled to 30 ℃ (2h) → test specimen is put into the drying and watering cycle system that corrosive liquid soaks (8h) carries out drying and watering cycle accelerated corrosion experiment.
D. according to the damage of the concrete sample under the multifactor coupling condition of certain period measurement deteriorate performance, the decay resistance of evaluation test specimen, and the concrete service life of predict.
Claims (1)
1. concrete drying and watering cycle accelerated corrosion test device; Comprise: insulation corrosion experiment case (6); On insulation corrosion experiment case (6), be provided with heating element (8); It is characterized in that be provided with at least 2 chargers at insulation corrosion experiment case (6), described charger comprises: the drying and watering cycle corrosion test chamber (2) of built-in corrosive liquid, be used for four-column type spring-loaded frame (5) and hydraulic hoist (7) that concrete sample (4) loads; Said drying and watering cycle corrosion test chamber (2) is located on the piston rod of hydraulic hoist (7); Said four-column type spring-loaded frame (5) is connected in insulation corrosion experiment case (6) through cantilever metal suspension rod (1), and said four-column type spring-loaded frame (5) is positioned at the top of drying and watering cycle corrosion test chamber (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120568103XU CN202486031U (en) | 2011-12-31 | 2011-12-31 | Test device for dry-wet circulation accelerated corrosion of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120568103XU CN202486031U (en) | 2011-12-31 | 2011-12-31 | Test device for dry-wet circulation accelerated corrosion of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202486031U true CN202486031U (en) | 2012-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120568103XU Expired - Fee Related CN202486031U (en) | 2011-12-31 | 2011-12-31 | Test device for dry-wet circulation accelerated corrosion of concrete |
Country Status (1)
| Country | Link |
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| CN (1) | CN202486031U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308443A (en) * | 2013-06-26 | 2013-09-18 | 钢铁研究总院 | Accelerated corrosion testing method for simulating soil corrosion process |
| CN103454304A (en) * | 2013-08-23 | 2013-12-18 | 长安大学 | Concrete specimen temperature testing device for simulating natural environments and testing method of concrete specimen temperature testing device |
| CN103776983A (en) * | 2014-01-27 | 2014-05-07 | 甘肃省交通科学研究院有限公司 | Rock soil wetting-drying cyclic experiment apparatus |
| CN109239317A (en) * | 2018-10-26 | 2019-01-18 | 河海大学 | A kind of multifunction test equipment and its application method accelerating concrete structure deterioration |
| CN109856040A (en) * | 2019-04-15 | 2019-06-07 | 黄河勘测规划设计研究院有限公司 | Concrete drying and watering cycle erosion test machine |
-
2011
- 2011-12-31 CN CN201120568103XU patent/CN202486031U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308443A (en) * | 2013-06-26 | 2013-09-18 | 钢铁研究总院 | Accelerated corrosion testing method for simulating soil corrosion process |
| CN103308443B (en) * | 2013-06-26 | 2015-07-29 | 钢铁研究总院 | A kind of accelerated corrosion method of testing of simulated soil corrosion process |
| CN103454304A (en) * | 2013-08-23 | 2013-12-18 | 长安大学 | Concrete specimen temperature testing device for simulating natural environments and testing method of concrete specimen temperature testing device |
| CN103776983A (en) * | 2014-01-27 | 2014-05-07 | 甘肃省交通科学研究院有限公司 | Rock soil wetting-drying cyclic experiment apparatus |
| CN103776983B (en) * | 2014-01-27 | 2015-08-05 | 甘肃省交通科学研究院有限公司 | Ground drying and watering cycle experimental provision |
| CN109239317A (en) * | 2018-10-26 | 2019-01-18 | 河海大学 | A kind of multifunction test equipment and its application method accelerating concrete structure deterioration |
| CN109856040A (en) * | 2019-04-15 | 2019-06-07 | 黄河勘测规划设计研究院有限公司 | Concrete drying and watering cycle erosion test machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20121231 |