CN202956322U - Precise concrete carbonization measuring device - Google Patents
Precise concrete carbonization measuring device Download PDFInfo
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- CN202956322U CN202956322U CN 201220683767 CN201220683767U CN202956322U CN 202956322 U CN202956322 U CN 202956322U CN 201220683767 CN201220683767 CN 201220683767 CN 201220683767 U CN201220683767 U CN 201220683767U CN 202956322 U CN202956322 U CN 202956322U
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- linked sealing
- concrete
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Abstract
The utility model discloses a precise concrete carbonization measuring device. The precise concrete carbonization measuring device comprises a precise digital display device, a sensor, a double-connection sealing plug, a reaction bottle and a reagent bottle, wherein the precise digital display device is connected with the sensor; the sensor is connected with one end of the double-connection sealing plug and the other end of the double-connection sealing plug is connected with the reaction bottle; the reagent bottle is arranged in a cavity formed by the reaction bottle and the double-connection sealing plug; the reagent bottle is internally provided with a pressure cavity and a solvent cavity; one end of the pressure cavity, which is adjacent to the solvent cavity, is in a closed structure; the other end of the pressure cavity is an opening sleeved on the double-connection sealing plug; a pressure transmitting hole is formed in the side wall of the pressure cavity; the two ends of the solvent cavity are closed; and a liquid injection hole is formed in the side wall of the solvent cavity. According to the precise concrete carbonization measuring device disclosed by the utility model, the content of CaCO3 in concrete can be accurately measured and the carbonization condition of the concrete can be accurately evaluated; the instrument is simple and convenient in structure and is convenient to carry and place; a measurement process is more convenient, used reagents are very common and the cost of testing devices is lower.
Description
Technical field
The utility model relates to field of civil engineering concrete structure durability pick-up unit, specifically, relates to a kind of accurate concrete carbonization measurement mechanism.
Background technology
Concrete carbonization is neutralisation, refers to airborne CO
2Gas constantly sees through in concrete not the pore of water-filling fully, is diffused into inside concrete and carries out neutralization reaction with hydrated product wherein, and Formed hydrochlorate or other materials make the process of the pH value reduction of concrete hole solution.
Carbonization reduces concrete basicity, destroys the passivating film of rebar surface, and carbonation depth reaches reinforcement location, makes concrete lose protective effect to reinforcing bar, causes the Steel Bars in Concrete Structure corrosion; Simultaneously, carbonization also can affect many character such as concrete shrinkage, intensity, structure, ion migration.Carbonization is that the primary factor of durability damage occurs under atmospheric environment xoncrete structure, estimates concrete carbonizing degree the permanance of predicting reinforced concrete constructional work under normal atmospheric environment is of great importance.Therefore, the concrete carbonization in xoncrete structure must be tested and judge, the decision method of concrete carbonization commonly used has following several at present:
1, chemical-agent technique.Utilize the change color of different chemical reagent under different pH value environment, measure concrete carbonization depth.The phenolphthalein alcoholic solution of 1% concentration commonly used, take pH=9 as the boundary line, carbonizing zone is colourless, not the carbonizing zone pinkiness.A kind of rainbow indicator (Rainbow indicator) is separately arranged, differentiate different pH values (5 ~ 13) according to the color of reaction, can test carbonization and the partially carbonized degree of depth.The method is the concrete carbonizing degree of reflection indirectly, and is easy to use, cost is low, but precision is not high, influence factor is many, and can not determine concrete neutralisation reason.
2, heat analysis method.When adding hot concrete by certain programming rate, physical-chemical reaction occurs in the hydrated product in concrete in the different temperatures scope, causes the variation of weight concrete, and is accompanied by heat absorption and exothermic phenomenon.Ca in concrete (OH)
2And CaCO
3Following pyrolysis occurs at a certain temperature:
Ca(OH)
2 
CaO?+H
2O
CaCO
3 
CaO+?CO
2
Use is united in differential thermal analysis (DTA) and thermogravimetric analysis, can obtain the more complete useful data of relevant carbonization and data.The method can directly be reacted the carbonizing degree of hydrated product, process of the test more complicated.Can only estimate Ca (OH)
2Carbonization, can not estimate the carbonization of C-S-H, sample preparation is complicated, heating up needs cost plenty of time etc., is not suitable for carrying out a large amount of tests.
3, x-ray method.By X-ray diffractometer, directly measure the different depth contained Ca of place's Behavior of Hardened Cement Paste (OH) in concrete
2And CaCO
3The content of crystal is judged concrete and is subjected to the carbonization situation.The XRD method can record Ca (OH) simultaneously
2And CaCO
3Along the distribution of the degree of depth, be applicable to the laboratory and accurately measure.The XRD method exists sample preparation complicated equally, be not easy to lot of experiments, and quantitative accuracy is poor.
4, electron probe microanalysis (EPMA) method.2 electronics and the reflection electronic of electron probe microanalyzer (Electron Probe Micro Analyzer:EPMA) when being the specimen surface irradiating electron beam observed the specimen surface state, and utilize the peculiar X ray of element that produces at this moment to obtain a kind of device of concentration and the space distribution thereof of microcell surface state, chemical element, be mainly used in measuring the microcell carbonization state.
In above-mentioned four kinds of methods, Site Detection is commonly used chemical-agent technique, can test the degree of depth of complete carbonizing zone, although the rainbow indicator is convenient, but more difficult by the visual inspection color, cause unavoidably larger error, be not suitable for needing accurately to determine the test of concrete carbonization depth; For the heat analysis method in the laboratory measurement method, x-ray method low precision, electron probe microanalysis (EPMA) method, process of the test is all too complicated, and cost is high.
Existing other technologies are inquired about find some patents, lift following describing:
Chinese patent (application) number 88220741.5 utility model patents utilize lever principle to measure concrete carbonization depth, and measuring error is larger, and the minimum division value of measurement is 0.25mm, and maximum range is 10mm.Although the minimum division value of measuring is less, carbonization is more seriously that the concrete that carbonization surpasses 10mm can't detect.
Chinese patent (application) number 200810039181.3 patents of invention provide a kind of concrete carbonization depth testing apparatus, can according to circumstances determine the degree of depth of detection, and the minimum detection scale division value is 2mm, and the maximum degree of depth that detects does not limit.But the method is when casting concrete, and device is fixed on template or reinforcing bar, can only be used for the detection of new construction, and can not estimate the carbonization of built engineering; Due to pre-buried this device in concrete, simultaneously this place's concrete surface is processed, so the carbonization situation at this place can not reflect concrete actual carbonization situation truly in addition; The method is in earlier stage pre-buried is that work is more, also needs during measurement repeatedly to measure, and testing process is too complicated.
The patent of invention of Chinese patent (application) number 00135769.7, it is a kind of pen type carbonization depth measurer, apparatus structure is simple, easy to use, but the degree of depth of measuring is inadequate, the deeplyest can reach 10mm, for existing research, the degree of depth is not by far up to the mark, and the member that especially carbonization situation is more serious can't detect.
Above several more representational patent all belongs to aforesaid chemical-agent technique, has the intrinsic defective of chemical-agent technique.
Summary of the invention
The utility model provides accurate concrete carbonization measurement mechanism for the deficiency of existing concrete carbonization assay method and technology, and this device can accurately be measured concrete CaCO
3Content, to concrete carbonization situation accurate evaluation, the surveying instrument features simple structure, the process of measurement is more convenient, and the reagent of use is very common, and the test equipment cost is lower, is easy to carry and places, and is extremely to have promotional value.
The technical solution of the utility model is: a kind of accurate concrete carbonization measurement mechanism, comprise, precise digital display device, sensor, doubly-linked sealing-plug, reaction bulb and reagent bottle, described precise digital display device is connected by cable with an end of sensor, the other end of sensor is connected with an end of doubly-linked sealing-plug by external thread, the other end of doubly-linked sealing-plug is connected with reaction bulb by doubly-linked sealing-plug internal thread, is provided with reagent bottle in reaction bulb and the formed cavity of doubly-linked sealing-plug; Be provided with two independently cavitys in described reagent bottle, be respectively pressure chamber and solvent chamber, the end that wherein pressure chamber is adjacent with the solvent chamber is enclosed construction, the other end is the opening that is sleeved on the doubly-linked sealing-plug, and have pressure transmission hole on its sidewall, the closed at both ends in solvent chamber has liquid injection hole on its sidewall.
Cover on described doubly-linked sealing-plug and be provided with outward extending along axis and an extend internally sleeve, the outward extending end setting of this sleeve have one with the metalwork of internal thread, this metalwork is connected with the external thread of an end setting of sensor, the part of this metalwork in sleeve is closing-in structure simultaneously, has a pressure port at its end; An end that extends internally is connected with pressure chamber.
Described doubly-linked sealing-plug is the whole machine-shaping of rigid plastic, arrange on the metalwork of described doubly-linked sealing-plug internal thread be the steel internal thread, this metalwork is bonded on sleeve lining by seccotine.
Be wound with raw silk between the external thread of described sensor one end and the internal thread of metalwork.
Be provided with rubber blanket between described doubly-linked sealing-plug and reaction bulb.
The length of described reagent bottle and reaction bulb are suitable with the formed cavity length of doubly-linked sealing-plug.
Described pressure transmission hole and liquid injection hole become an angle of 90 degrees setting with respect to the axis of reagent bottle.
The beneficial effects of the utility model are: measure exactly concrete CaCO
3Content is to concrete carbonization situation accurate evaluation, surveying instrument features simple structure, the process of measuring is more convenient, and the reagent that uses in process of the test is also very common, and the test equipment cost is lower, be easy to carry and place, by Experimental Calibration and instrument setting, instrument can directly show CaCO
3Account for the concrete quality mark; need not process again and computing data; solve the seal of vessel problem; controlled course of reaction; guarantee that the reaction institute gas that produces obtains the true pressure value, in the solution course of reaction, the problem of gas-liquid separation, protect sensor probe; be a kind of gas pressure measurement device, can be used for biology, medical science, chemical field.
Description of drawings
Accompanying drawing 1 is the accurate concrete carbonization precise digital display device schematic diagram of the utility model specific embodiment;
Accompanying drawing 2 is the connection diagram of doubly-linked sealing-plug, reagent bottle and the reaction bulb of the utility model specific embodiment;
Accompanying drawing 3 is that the sensor of the utility model specific embodiment is connected the connection side view with the doubly-linked sealing-plug;
Accompanying drawing 4 is that the sensor of the utility model specific embodiment is connected the connection front elevation with the doubly-linked sealing-plug;
Accompanying drawing 5 is the reagent bottle outside drawing of the utility model specific embodiment;
Accompanying drawing 6 is the reagent bottle skeleton view of the utility model specific embodiment;
Accompanying drawing 7 is the reagent bottle planimetric map of the utility model specific embodiment.
Reference numeral: 1 precise digital display device; 2 sensors, 21 external threads, 22 cables; 3 doubly-linked sealing-plugs, 31 doubly-linked sealing-plug internal threads, 32 metalworks, 33 sleeves, 34 pressure ports, 35 rubber blankets; 4 reaction bulbs; 5 reagent bottles, 51 pressure chambers, 52 pressure transmission holes, 53 solution cavities, 54 liquid injection holes.
Embodiment
In order further to understand structure of the present utility model, feature and other purpose, now be described in detail as follows in conjunction with appended specific embodiment, illustrated preferred embodiment only is used for the explanation the technical solution of the utility model, and non-limiting the utility model.
Embodiment:
As shown in Fig. 1-7, a kind of accurate concrete carbonization measurement mechanism, comprise, precise digital display device 1, sensor 2, doubly-linked sealing-plug 3, reaction bulb 4 and reagent bottle 5, described precise digital display device 1 is connected by cable 22 with an end of sensor 2, the other end of sensor 2 is connected with an end of doubly-linked sealing-plug 3 by external thread 21, the other end of doubly-linked sealing-plug 3 is connected with reaction bulb 4 by doubly-linked sealing-plug internal thread 31, is provided with reagent bottle 5 in reaction bulb 4 and the formed cavity of doubly-linked sealing-plug 3; Be provided with two independently cavitys in described reagent bottle 5, be respectively pressure chamber 51 and solvent chamber 53, the end that wherein pressure chamber 51 is adjacent with solvent chamber 53 is enclosed construction, the other end is the opening that is sleeved on doubly-linked sealing-plug 3, and have pressure transmission hole 52 on its sidewall, the closed at both ends in solvent chamber 53 has liquid injection hole 54 on its sidewall; Cover on described doubly-linked sealing-plug 3 and be provided with outward extending along axis and an extend internally sleeve 33, the outward extending end setting of this sleeve 33 have one with the metalwork 32 of internal thread, this metalwork 32 is connected with the external thread 21 of an end setting of sensor 2, the part of this metalwork 32 in sleeve 33 is closing-in structure simultaneously, has a pressure port 34 at its end; An end that extends internally is connected with pressure chamber 51; Described doubly-linked sealing-plug 3 is the whole machine-shaping of rigid plastic, arrange on the metalwork 32 of described doubly-linked sealing-plug internal thread be the steel internal thread, this metalwork 32 is bonded on sleeve 33 inwalls by seccotine; Be wound with raw silk between the external thread 21 of described sensor 2 one ends and the internal thread of metalwork 32; Be provided with rubber blanket 35 between described doubly-linked sealing-plug 3 and reaction bulb 4; The length of described reagent bottle 5 and reaction bulb 4 are suitable with the formed cavity length of doubly-linked sealing-plug 3; Described pressure transmission hole 52 and liquid injection hole 54 become an angle of 90 degrees setting with respect to the axis of reagent bottle 5.
Adopt said apparatus, carry out following measuring process:
1) concrete sample is carried out the layering abrasive dust, the powder that the layering mill is got is contained in sealing bag, prevents from reacting with airborne gas and causes test error, and the surface of sealing bag is indicated the mill of concrete sample and got the degree of depth.
2) cable 22 is electrically connected to precise digital display device 1, precise digital display device 1 connects power supply, and precise digital display device 1 guarantees that with the auto zero function electric signal of sensor 2 is correctly shown.
3) other end with sensor 2 is connected with the metalwork 32 of doubly-linked sealing-plug 3 one ends with internal thread by external thread 21, the other end of doubly-linked sealing-plug 3 is connected with reaction bulb 4 by doubly-linked sealing-plug internal thread 31, is provided with rubber blanket 35 between doubly-linked sealing-plug 3 and reaction bulb 4.
4) guarantee that rubber blanket 35 passes the end that the sleeve 33 of duplex sealing-plug 3 extends internally, closely be connected with duplex sealing-plug 3 is inboard.
5) the sample powder that takes some with the Precision Electronics Balance scale is positioned in reaction bulb 4, makes the sample powder concentrate on the bottom of reaction bulb 4 as far as possible.
6) horizontal direction is taken reagent bottle 5, and liquid injection hole 54 upwards uses dropper to add acid solution by liquid injection hole 54 in solution cavity 53, and the sleeve 33 that pressure chamber 51 opening one sides on reagent bottle 5 are enclosed within doubly-linked sealing-plug 3 is extended internally on part;
7) reagent bottle 5 horizontal directions are inserted reaction bulb 4, reaction bulb 4 closely is connected with doubly-linked sealing-plug internal thread 31 by reaction bulb 4 with doubly-linked sealing-plug 3, revolving reaction bottle 4, doubly-linked sealing-plug 3 is motionless, the sleeve 33 that reagent bottle 5 is enclosed within doubly-linked sealing-plug 3 extends internally on part, can not move, the assurance acid solution is not leaked yet.
8) reaction bulb 4 is erected, hand-held sensor 2 shakes reaction bulb 4 simultaneously, hydrochloric acid solution flows into reaction bulb by the liquid injection hole 54 of solution cavity 53, concrete powder generation chemical reaction in hydrochloric acid in reagent bottle 5 and reaction bulb 4, generate carbon dioxide, the volume of gas increases, and the pressure transmission hole 52 that the Pneumatic pipe cleaner of increase is crossed on reagent bottle 5 reaches pressure chamber 51, and arrives sensor 2 through the pressure port 34 of doubly-linked sealing 3.
9) variation of air pressure size makes the interior resistance of sensor 2 change, and produces different electric currents, and different electric currents represents different CaCO
3Account for the massfraction of concrete powder, read numerical value and record data on instrument.
10) measure end cleaning reaction bottle 4 and reagent bottle 5 and carry out next one test.
11) draw CaCO
3Account for the massfraction of concrete powder along the CONCENTRATION DISTRIBUTION of distance concrete surface, concrete carbonization is carried out quantitative description.
Claims (7)
1. accurate concrete carbonization measurement mechanism, comprise, precise digital display device (1), sensor (2), doubly-linked sealing-plug (3), reaction bulb (4) and reagent bottle (5), it is characterized in that: described precise digital display device (1) is connected by cable (22) with an end of sensor (2), the other end of sensor (2) is connected by the end of external thread (21) with doubly-linked sealing-plug (3), the other end of doubly-linked sealing-plug (3) is connected with reaction bulb (4) by doubly-linked sealing-plug internal thread (31), be provided with reagent bottle (5) in reaction bulb (4) and the formed cavity of doubly-linked sealing-plug (3), be provided with two independently cavitys in described reagent bottle (5), be respectively pressure chamber (51) and solvent chamber (53), the end that wherein pressure chamber (51) is adjacent with solvent chamber (53) is enclosed construction, the other end is for being sleeved on the opening on doubly-linked sealing-plug (3), and have pressure transmission hole (52) on its sidewall, the closed at both ends in solvent chamber (53) has liquid injection hole (54) on its sidewall.
2. accurate concrete carbonization measurement mechanism as claimed in claim 1, it is characterized in that: cover on described doubly-linked sealing-plug (3) and be provided with outward extending along axis and an extend internally sleeve (33), the outward extending end setting of this sleeve (33) a metalwork with internal thread (32) arranged, this metalwork (32) is connected with the external thread (21) that an end of sensor (2) arranges, the part of this metalwork (32) in sleeve (33) is closing-in structure simultaneously, has a pressure port (34) at its end; An end that extends internally is connected with pressure chamber (51).
3. accurate concrete carbonization measurement mechanism as claimed in claim 2, it is characterized in that: described doubly-linked sealing-plug (3) is the whole machine-shaping of rigid plastic, the metalwork of described doubly-linked sealing-plug (32) is upper arrange internal thread be the steel internal thread, this metalwork (32) is bonded on sleeve (33) inwall by seccotine.
4. accurate concrete carbonization measurement mechanism as described in any one of claim 2-3, is characterized in that: be wound with raw silk between the external thread (21) of described sensor (2) one ends and the internal thread of metalwork (32).
5. accurate concrete carbonization measurement mechanism as claimed in claim 1, is characterized in that: be provided with rubber blanket (35) between described doubly-linked sealing-plug (3) and reaction bulb (4).
6. accurate concrete carbonization measurement mechanism as claimed in claim 1, it is characterized in that: the length of described reagent bottle (5) and reaction bulb (4) are suitable with the formed cavity length of doubly-linked sealing-plug (3).
7. accurate concrete carbonization measurement mechanism as claimed in claim 1 is characterized in that: described pressure transmission hole (52) and liquid injection hole (54) become an angle of 90 degrees setting with respect to the axis of reagent bottle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683767 CN202956322U (en) | 2012-12-12 | 2012-12-12 | Precise concrete carbonization measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683767 CN202956322U (en) | 2012-12-12 | 2012-12-12 | Precise concrete carbonization measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN202956322U true CN202956322U (en) | 2013-05-29 |
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|---|---|---|---|
| CN 201220683767 Withdrawn - After Issue CN202956322U (en) | 2012-12-12 | 2012-12-12 | Precise concrete carbonization measuring device |
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|---|---|
| CN (1) | CN202956322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592200A (en) * | 2012-12-12 | 2014-02-19 | 青岛理工大学 | Precision concrete carbonization measuring device |
-
2012
- 2012-12-12 CN CN 201220683767 patent/CN202956322U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103592200A (en) * | 2012-12-12 | 2014-02-19 | 青岛理工大学 | Precision concrete carbonization measuring device |
| CN103592200B (en) * | 2012-12-12 | 2015-07-29 | 青岛理工大学 | A kind of precision concrete carbonization measurement mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130529 Effective date of abandoning: 20150729 |
|
| RGAV | Abandon patent right to avoid regrant |