CN201917302U - Measuring device for concrete carbonization Depth - Google Patents
Measuring device for concrete carbonization Depth Download PDFInfo
- Publication number
- CN201917302U CN201917302U CN 201020595577 CN201020595577U CN201917302U CN 201917302 U CN201917302 U CN 201917302U CN 201020595577 CN201020595577 CN 201020595577 CN 201020595577 U CN201020595577 U CN 201020595577U CN 201917302 U CN201917302 U CN 201917302U
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- CN
- China
- Prior art keywords
- concrete
- electric drill
- carbonization
- measuring device
- depth
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a measuring device for concrete carbonization depth. The measuring device comprises an electric drill, wherein one side of the electric drill is connected with a caliper capable of sliding on the electric drill; the other side of the electric drill is provided with a bracket; an indicator container is arranged on the bracket; and the indicator container is filled with the indicator. The measuring device has a simple structure, is easy to operate and has a very accurate measuring result, meanwhile, has slight damage to the concrete substrate structure and can measure the carbonization depth of the concrete test block at the laboratory and of the structural concrete of the construction.
Description
Technical field
The utility model relates to a kind of concrete carbonization depth measuring instrument.
Background technology
Concrete carbonization is meant acidic materials CO
2With concrete joint after touch, under the condition that has water to exist, react with alkaline matter in the concrete, cause the process that basicity descends in the concrete.Other acidic materials such as SO
2, HCl, Cl
2Also can react with the alkaline matter in the concrete and cause concrete basicity to descend, this is the carbonization of broad sense just, claims concrete neutralisation again.Concrete is a kind of structured material of porous, and its inside exists a large amount of micropores, and these micropores are communicated with by direct or indirect mode mostly.When concrete is exposed in the air, airborne CO
2Infiltrate through in concrete surface and the micropore, under the situation that has water to exist, with wherein alkaline matter mainly be Ca (OH)
2React with the C-S-H gel, generate CaCO
3And H
2O, reaction equation is as follows:
CO
2+H
2O→H
2CO
3
Ca(OH)
2+H
2CO
3→CaCO
3+H
2O
3CaO·2SiO
2·3H
2O+3H
2CO
3→3CaCO
3+2SiO
2+6H
2O
3CaO·2SiO
2·4H
2O+2H
2CO
3→2CaCO
3+SiO
2+6H
2O
Carbonization shows the destruction of xoncrete structure: 1. owing to carbonization, concrete basicity reduces, and the dense oxidation film (passivating film) that rebar surface is formed under high alkali environment is destroyed, causes reinforcing bar generation corrosion, influences concrete structural strength; 2. because carbonated concrete body alkalescence reduces, make inside concrete hydrated cementitious product lose the alkaline environment of stable existence, the destruction that causes water mudrock structure; 3. the contraction of carbonization of concrete exacerbate water mudstone makes concrete produce the crack at cement stone at the interface with gathering materials, and reduces concrete intensity.
The important indicator that concrete anti-carbonization ability is its durability evaluation is the important parameter of xoncrete structure quality, and therefore, the accuracy of concrete carbonization depth test directly influences the quality safety evaluation of construction work.
At present, to the test of concrete carbonization, mainly be to carry out according to GBJ82 " Standard for test methods of longterm performance and durability of ordinary concrete ".This method needs in advance the concrete moulding that keeps sample, and the process very complicated must just can be surveyed its carbonation depth to the broken type of test block, and test accuracy is not high, and can't test the fabric structure carbonization of concrete degree of depth.The concrete carbonization depth instrument of Chinese patent (88220741.5) adopts lever principle to measure, and is easy to generate error, and precision is lower, and scale division value is 0.25mm, and the only about 10mm of maximum range then can't measure greater than the concrete of 10mm for carbonation depth.Chinese patent (00233170.5) discloses a kind of concrete carbonization depth dip stick, though precision is higher, but before the test concrete carbonization depth, need elder generation with concrete destruction, and irregular concrete cross section will impact to the precision and the accuracy of measurement result.Chinese patent (01138715.7) has been invented a kind of continuous concrete carbonizing tester, can one-time continuous measure the multiple thickness carbonization of concrete degree of depth, but need moulding in advance to prepare stepped concrete test block, and only can in the laboratory, test, can't test the fabric structure carbonization of concrete degree of depth to the carbonization of concrete degree of depth.
The utility model content
The purpose of this utility model is to address the above problem and provide a kind of simple in structure, measure easy, accurately and to the measuring instrument of the less measurement concrete carbonization depth of concrete substrate structural failure.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
It comprises electric drill, and electric drill one side is connected with slide calliper rule, and slide calliper rule can slide on electric drill; The opposite side of electric drill is provided with carriage, and marker container is installed on the carriage, in the indicator container indicator is housed.
Above-mentioned marker container can be slided on carriage.
Above-mentioned slide calliper rule are connected on the electric drill by connecting link.
Compared with prior art, the utility model has been obtained following technique effect:
1, this utility model is simple in structure, and measuring operation is very easy, and the result is very accurate, simultaneously, less to the concrete substrate structural failure, both concrete test block in the testing laboratory had been carried out the test of carbonation depth, can carry out the test of carbonation depth to the fabric structure concrete again;
2, the design that can slide on carriage by marker container can be adjusted the position of marker container according to hole depth in good time, further improves the accuracy of measuring;
3, by connecting link slide calliper rule are connected on the electric drill interference when can avoid holing, the serviceable life of improving borehole accuracy and slide calliper rule.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Wherein: 1-electric drill, 2-slide calliper rule, 3-carriage, 4-marker container, 5-connecting rod, 6-vernier, 7-gib screw.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of concrete carbonization depth measuring instrument, it comprises electric drill 1, electric drill one side is connected with connecting rod 5, is connected with vernier 6 on the connecting rod, is installed with slide calliper rule 2 in the draw-in groove of vernier, slide calliper rule can slide in vernier, and its tightness can be by gib screw 7 controls that are located at the vernier outside.The opposite side of electric drill is provided with carriage 3, and marker container 4 is installed on the carriage slidably, and such as can be by establishing chute on marker container, carriage 3 be installed in the chute and slides.In the indicator container indicator is housed, indicator can be selected the alcohol phenolphthalein solution for use, and other suitable indicator is also passable certainly, and the concentration of solution can dispose as required.
The utility model generally comprises following use step in the process of test concrete carbonization depth:
1, with the electric drill 1 drill bit perpendicular alignmnet concrete side surface to be measured of concrete carbonization depth measuring instrument, slide calliper rule 2 slide to is close to this side, and writes down scale value L
1
2, carry tightly with the slide calliper rule withdrawal, and with gib screw, to prevent that vibration causes damage to slide calliper rule 2 in electric drill 1 course of work;
3, implantation quality percentage is 1%～2% alcohol phenolphthalein solution in marker container 4, places on the carriage 3, and is close to concrete side surface to be measured;
4, start electric drill 1,, stop electric drill 1 immediately when the alcohol phenolphthalein solution in the marker container 4 during by colourless reddening;
5, unclamp gib screw, slide calliper rule are slided to be close to concrete side;
6, tighten gib screw, shift out the concrete carbonization measuring instrument, write down scale value L
2
The concrete carbonization depth of this test point is (L
2-L
1) absolute value.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not break away from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, intention then of the present utility model also comprises these changes and is out of shape interior.
Claims (3)
1. concrete carbonization depth measuring instrument, it is characterized in that: it comprises electric drill (1), and electric drill one side is connected with slide calliper rule (2), and slide calliper rule can slide on electric drill; The opposite side of electric drill is provided with carriage (3), and marker container (4) is installed on the carriage, in the indicator container indicator is housed.
2. concrete carbonization depth measuring instrument according to claim 1 is characterized in that: described marker container can be slided on carriage.
3. concrete carbonization depth measuring instrument according to claim 1 and 2 is characterized in that: described slide calliper rule are connected on the electric drill by connecting link (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020595577 CN201917302U (en) | 2010-11-08 | 2010-11-08 | Measuring device for concrete carbonization Depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020595577 CN201917302U (en) | 2010-11-08 | 2010-11-08 | Measuring device for concrete carbonization Depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201917302U true CN201917302U (en) | 2011-08-03 |
Family
ID=44417096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020595577 Expired - Fee Related CN201917302U (en) | 2010-11-08 | 2010-11-08 | Measuring device for concrete carbonization Depth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201917302U (en) |
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 |
| CN109282783A (en) * | 2018-11-13 | 2019-01-29 | 浙江省水利河口研究院 | A kind of concrete carbonization depth original position damage-free measuring apparatus and method |
-
2010
- 2010-11-08 CN CN 201020595577 patent/CN201917302U/en not_active Expired - Fee Related
Cited By (3)
| 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 |
| CN109282783A (en) * | 2018-11-13 | 2019-01-29 | 浙江省水利河口研究院 | A kind of concrete carbonization depth original position damage-free measuring apparatus and method |
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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: 20110803 Termination date: 20111108 |