CN203324072U - Cement sample molding mold for rebar corrosion test - Google Patents
Cement sample molding mold for rebar corrosion test Download PDFInfo
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- CN203324072U CN203324072U CN2013204062741U CN201320406274U CN203324072U CN 203324072 U CN203324072 U CN 203324072U CN 2013204062741 U CN2013204062741 U CN 2013204062741U CN 201320406274 U CN201320406274 U CN 201320406274U CN 203324072 U CN203324072 U CN 203324072U
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- housing
- corrosion test
- cement sample
- steel bar
- pressing plate
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Abstract
The utility model discloses a cement sample molding mold for a rebar corrosion test. The mold comprises a shell, a bottom plate and a cover plate, wherein the shell is in the shape of a barrel and comprises two arc-shaped side plates, and the two side plates are connected into a whole through screws or bolts; the cover plate is fixed on the top face of the shell through screws, and the middle of the cover plate comprises a rebar inserting-in hole; the bottom plate is fixed on the bottom face of the shell through screws. The cement sample molding mold for the rebar corrosion test is convenient to assemble and disassemble, favorable for fast molding of a cement sample and capable of being used for an electrochemical impedance spectroscopy test method to detect cement-based rebar materials.
Description
[technical field]
The utility model relates to the electrochemical impedance spectroscopy of cement based steel bar corrosion process to be surveyed, and relates in particular to a kind of cement sample mould for the steel bar corrosion test.
[background technology]
Reinforced concrete is modern most important building materials, and its permanance under various environment has extremely important impact to quality and the life-span of engineering.Mostly adopted macroscopical method to be detected the fundamental characteristics of cement based steel bar corrosion in the past, but the method for macroscopic view need to be destroyed original test specimen, can not the performance to material detect constantly from the micromechanism of material, expend a large amount of human and material resources, and test result can not truly reflect the performance of material that working-yard is used simultaneously.
Reinforcing bar in Reinforced Concrete Materials in external environment (as the erosion of chlorine from sub-﹑ sulfate ion etc.; Acidic materials destroy concrete pH value etc.) lower easy corrosion, cause cohesive force between reinforcing bar and concrete to decline to a great extent, the service life of reduction structure.Cement based steel bar corrosion process is the chemical process of a complexity, wherein relates to the electronics between anode and cathode in chemical reaction process and shifts, and this process is decided by the micromechanism of material, and closely related with the performance of material; Secondly, the influence factor of cement based steel bar corrosion is a lot, and such as the Gai Bian ﹑ thickness of concrete cover of chlorion Ru Qin ﹑ pH value Jiang Di ﹑ temperature and humidity etc., the relation between these factors is the focus that people study always.Therefore, the research of cement based steel bar corrosion process is the emphasis of researcher always.
The electrochemical impedance spectroscopy method of testing is a new measuring technology, it is used as cement-based material is a kind of porous medium, measures to understand its microscopical structure (microstructure) by the electrical property of the electrolyte solution to its hole and capillary structure and grout/aggregate Interface zone of transition.It can detect constantly to material, observes material and structural behaviour over time; Simultaneously, test process does not destroy test specimen, is a kind of new method of Non-Destructive Testing.The test that existing electrochemical workstation mostly is the materials such as metal and electrolyte solution arranges, the parameter setting of whole system, fixture (mould) design, environmental impact etc. aspect, current electrochemical workstation all with concrete material, has very big-difference, therefore can not directly be moved in the Reinforced Concrete Materials test.Therefore, need a kind of mould for the preparation of the cement based reinforcing bar sample, in order to can be detected cement based reinforcing bar material by the electrochemical impedance spectroscopy method of testing.
[summary of the invention]
The technical problems to be solved in the utility model is to provide a kind of cement sample mould that adopts the electrochemical impedance spectroscopy method of testing to be detected cement based reinforcing bar material of being convenient to.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is, a kind of cement sample mould for the steel bar corrosion test, comprise housing, base plate and cover plate, described housing is tubular, comprises the side plate of two arcs, and two blocks of side plates connect as one by screw or bolt; Described cover plate is fixed by screws in the end face of housing, and middle part comprises the reinforcing bar patchhole; Described base plate is fixed by screws in the bottom surface of housing.
The above-described cement sample mould for the steel bar corrosion test, described cover plate comprises the pressing plate of star, the protuberance of star pressing plate comprises screw hole, the recess of star pressing plate communicates with the inner chamber of housing, the cover plate gib screw is through the screw hole of pressing plate, screw in the threaded hole of housing end face, cover plate is fixed on to the housing top.
The above-described cement sample mould for the steel bar corrosion test, described star pressing plate is cruciform.
The above-described cement sample mould for the steel bar corrosion test, comprise a plurality of reinforcing bar gib screws, the middle part of described star pressing plate comprises the cylinder projected upwards, the middle part of cylinder comprises described reinforcing bar patchhole, the sidewall of cylinder comprises threaded hole, and the reinforcing bar gib screw screws in the threaded hole of column side wall.
The above-described cement sample mould for the steel bar corrosion test, the bottom surface of described star pressing plate comprises outstanding positioning step downwards, the endoporus adaptation of the periphery of positioning step and housing.
The above-described cement sample mould for the steel bar corrosion test, described housing is cylindrical shape, cylindrical shell is divided into the side plate of two arcs along diametric(al).
The above-described cement sample mould for the steel bar corrosion test, the material of housing, pressing plate and base plate is alumina based material.
The cement sample mould of the utility model steel bar corrosion test is easy to loading and unloading, is convenient to the cement sample rapid shaping, can be used for the electrochemical impedance spectroscopy method of testing cement based reinforcing bar material is detected.
[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 sample mould.
Fig. 2 is the vertical view of the utility model embodiment sample mould.
Fig. 3 is the upward view of the utility model embodiment sample mould.
Fig. 4 is that A in Fig. 1 is to cut-open view.
Fig. 5 is the upward view of the utility model embodiment sample mould cover plate.
Fig. 6 is that B in Fig. 2 is to cut-open view.
[embodiment]
The structure of the cement sample mould that the utility model embodiment tests for steel bar corrosion as shown in Figures 1 to 6, comprises alumina based material housing 1, base plate 2 and cover plate 3.
Housing 1 is cylindric, and cylindrical shell 1 is divided into two same arc side plates 101 and 102, two blocks of side plates 101 and 102 connect as one by 6 bolts 4 along diametric(al).
Respectively there are 3 threaded holes arc side plate 101 and 102 bottom surface, and base plate 2 is fixed on the bottom surface of arc side plate 101 and 102 by 6 screws 5.
4 protuberance 301a of cruciform pressing plate 301 respectively have a screw hole 301c, the recess 301b of cruciform pressing plate 301 communicates with the inner chamber of housing 1, cover plate gib screw 6, through the screw hole on pressing plate 301a, screws in the threaded hole of housing 1 end face, cover plate 3 is fixed on the end face of housing 1.Endoporus 103 adaptations of the periphery of positioning step 303 and housing 1, be convenient to aim at, locate.
There is a reinforcing bar patchhole 304 at the middle part of right cylinder 302, and reinforcing bar patchhole 304 is the through holes that penetrate cover plate 3, and reinforcing bar 10 is inserted in hole 304.Three threaded holes are arranged on the sidewall of right cylinder 302, and three reinforcing bar gib screws 7 screw in respectively the threaded hole of cylinder 302 sidewalls, and reinforcing bar 10 is fixed in mould.
Before the mould assembling, need to smear machine oil at the inside surface of two blocks of side plates of mould 101,102 and the upper surface of base plate 2, to prevent the inboard adhesion of water slurry body and mould, be convenient to later stage dismounting mould.
With bolt 4, screw 5, two blocks of side plates 101,102 and base plate 2 are combined into one, reinforcing bar 10 is inserted in the reinforcing bar patchhole 304 of cover plate 3, with reinforcing bar gib screw 7, reinforcing bar 10 is fixed on to the central authorities of cover plate 3, regulates as required reinforcing bar 10 insertion depths.
Pour into cement slurry in the hollow cylinder surrounded to base plate 2 and side plate 101,102, buckle the cover plate 3 with reinforcing bar 10, tighten 4 cover plate gib screws 6 cover plate 3 is fixed on the end face of housing 1.
Reinforcing bar gib screw 7 prevents from moving up and down in vibration cement slurry process at reinforcing bar 10, remains on the cement slurry center.
The recess 301b of cruciform pressing plate 301 communicates with the inner chamber of housing 1.The inner chamber of housing 1 is in communication with the outside, and is conducive to the cement solidification moulding.
Cement slurry is removed mould and can be tested cement based steel bar corrosion situation under the different ions environment in mould after curing molding.
The above embodiment of the utility model has following beneficial effect:
1. select screw to be connected base plate, side plate and top cover, can realize the straight forming of cement material, and easy to loading and unloading;
2. on cover plate, the reinforcing bar gib screw can be regulated steel bar preassembling buried depth degree according to requirement of experiment, controls the iontophoretic injection path;
3. the body formed sample of circular cylindrical shell is identical with the path that extraneous harmful ion arrives the cement based reinforcing bar;
4. the top board of right-angled intersection can be accelerated the cement slurry molding rate.
Claims (7)
1. the cement sample mould for the steel bar corrosion test, comprise housing and base plate, it is characterized in that, comprise cover plate, described housing is tubular, comprises the side plate of two arcs, and two blocks of side plates connect as one by screw or bolt; Described cover plate is fixed by screws in the end face of housing, and middle part comprises the reinforcing bar patchhole; Described base plate is fixed by screws in the bottom surface of housing.
2. the cement sample mould for steel bar corrosion test according to claim 1, it is characterized in that, described cover plate comprises the pressing plate of star, the protuberance of star pressing plate comprises screw hole, the recess of star pressing plate communicates with the inner chamber of housing, the cover plate gib screw, through the screw hole of pressing plate, screws in the threaded hole of housing end face, and cover plate is fixed on to the housing top.
3. the cement sample mould for the steel bar corrosion test according to claim 2, is characterized in that, described star pressing plate is cruciform.
4. the cement sample mould for steel bar corrosion test according to claim 2, it is characterized in that, comprise a plurality of reinforcing bar gib screws, the middle part of described star pressing plate comprises the cylinder projected upwards, the middle part of cylinder comprises described reinforcing bar patchhole, the sidewall of cylinder comprises threaded hole, and the reinforcing bar gib screw screws in the threaded hole of column side wall.
5. the cement sample mould for the steel bar corrosion test according to claim 2, is characterized in that, the bottom surface of described star pressing plate comprises outstanding positioning step downwards, the endoporus adaptation of the periphery of positioning step and housing.
6. the cement sample mould for the steel bar corrosion test according to claim 1, is characterized in that, described housing is cylindrical shape, and cylindrical shell is divided into the side plate of two arcs along diametric(al).
7. the cement sample mould for the steel bar corrosion test according to claim 1, is characterized in that, the material of housing, pressing plate and base plate is alumina based material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204062741U CN203324072U (en) | 2013-07-09 | 2013-07-09 | Cement sample molding mold for rebar corrosion test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204062741U CN203324072U (en) | 2013-07-09 | 2013-07-09 | Cement sample molding mold for rebar corrosion test |
Publications (1)
| Publication Number | Publication Date |
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| CN203324072U true CN203324072U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204062741U Expired - Lifetime CN203324072U (en) | 2013-07-09 | 2013-07-09 | Cement sample molding mold for rebar corrosion test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849124A (en) * | 2015-06-10 | 2015-08-19 | 深圳大学 | Force-bearing steel bar corrosion test piece forming device and method |
| CN109187284A (en) * | 2018-09-07 | 2019-01-11 | 宁波联城住工科技有限公司 | Cement slurry test equipment and method |
-
2013
- 2013-07-09 CN CN2013204062741U patent/CN203324072U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849124A (en) * | 2015-06-10 | 2015-08-19 | 深圳大学 | Force-bearing steel bar corrosion test piece forming device and method |
| CN104849124B (en) * | 2015-06-10 | 2017-09-19 | 深圳大学 | Steel bar stress corrosion specimen molding apparatus and method |
| CN109187284A (en) * | 2018-09-07 | 2019-01-11 | 宁波联城住工科技有限公司 | Cement slurry test equipment and method |
| CN109187284B (en) * | 2018-09-07 | 2021-11-26 | 广东睿住住工科技有限公司 | Cement slurry testing equipment and method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
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| CX01 | Expiry of patent term |