CN201673151U - Concrete accelerated carbonization tester - Google Patents
Concrete accelerated carbonization tester Download PDFInfo
- Publication number
- CN201673151U CN201673151U CN2010202167957U CN201020216795U CN201673151U CN 201673151 U CN201673151 U CN 201673151U CN 2010202167957 U CN2010202167957 U CN 2010202167957U CN 201020216795 U CN201020216795 U CN 201020216795U CN 201673151 U CN201673151 U CN 201673151U
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- gas
- concrete
- carbonization
- test
- gas outlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000003763 carbonization Methods 0.000 title claims abstract description 51
- 238000012360 testing method Methods 0.000 claims abstract description 89
- 238000004868 gas analysis Methods 0.000 claims abstract description 7
- 239000011521 glass Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 244000309464 bull Species 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000012188 paraffin wax Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- KJFMBFZCATUALV-UHFFFAOYSA-N phenolphthalein Chemical compound C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2C(=O)O1 KJFMBFZCATUALV-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The utility model relates to the technical field of a concrete carbonization test, in particular to a concrete accelerated carbonization tester. The concrete accelerated carbonization tester comprises a gas bin and carbonization chambers. The gas bin is provided with a gas inlet, gas outlets and a gas discharge port which are provided with valves. The gas inlet of the gas bin is communicated with a CO2 gas supply device or the atmosphere. More than one gas outlets of the gas bin are arranged and are connected with the carbonization chambers. The lower ends of the carbonization chambers are connected with the testing ends of concrete test blocks by sealing rings. The gas bin is provided with a gas analysis instrument. By adopting the structure of one big gas bin and a plurality of independent small carbonization chambers, the concrete accelerated carbonization tester not only effectively utilizes CO2 gas, but also conveniently increases numbers of the concrete test blocks or takes out the concrete test blocks of which the carbonization is accelerated and has the advantages of small volume of the carbonization chambers, convenient and reliable sealing, saving of a step of carrying out paraffin wax sealing on the original concrete test blocks, simplification of the testing process, reduction of test cost, compact structure, small volume, simpleness and practicality.
Description
Technical field
The utility model relates to the concrete carbonization technical field of measurement and test, relates in particular to a kind of concrete accelerated carbonation test unit with independent carbonization chamber, good sealing effect.
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.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 the high alkalinity 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, it is the important parameter of xoncrete structure quality, at present, to the test of the anti-carbonization ability of concrete, mainly be to carry out according to GBJ 82 " Standard for test methods of longterm performance and durability of ordinary concrete ".Equipment to concrete carbonation test in this world mainly comprises carbonization case, gas analyzer, CO
2Feeder.Concrete accelerated carbonation maintenance is carried out in the carbonization case, the volume of carbonization case has determined the progress of concrete carbonation test, when carbonization case volume is big, the test group number that can carry out simultaneously is more, it is more favourable to carry out a fairly large number of test situation for needs, and still, the chamber door potted line of the carbonization case that volume is bigger is bigger, sealing is difficulty comparatively, CO
2The gas gas leak phenomenon is obvious, and the test group number that ought carry out more after a little while, and the volume of carbonization case can't change, and still needs to charge into the CO of equal number
2Gas, CO
2The utilization factor of gas is lower, CO
2Gas consumption is very fast, and experimentation cost is bigger; But, when carbonization case volume hour, the group number of test is restricted again, can't carry out the test simultaneously of many groups.In addition, stipulate in this world that concrete sample is except that staying one or relative two sides, the paraffin of remaining surface application of heat gives encapsulation process, the process complexity.
Summary of the invention
The purpose of this utility model provides CO
2Gas effciency is higher, the concrete accelerated carbonation test unit of good sealing effect.
To achieve these goals, the technical solution of the utility model is: a kind of concrete accelerated carbonation test unit, it includes gas storehouse, carbonization chamber, the gas storehouse is provided with air intake opening, gas outlet, leakage port, described air intake opening and gas outlet all are equipped with valve, described leakage port is equipped with gas bleed valve, the air intake opening in gas storehouse and CO
2Feeder or be connected with atmosphere, the gas outlet in gas storehouse is provided with more than one, and the gas outlet is connected with the carbonization chamber, and the test lead of lower end, carbonization chamber and concrete test block is connected by O-ring seal, and the gas storehouse is provided with gas analysis instrument.
Described gas analysis instrument comprises rain glass and CO
2The concentration detector.
The wireway that make by plastic tube or rubber tube or steel pipe described gas outlet is connected with the carbonization chamber.
Use between the termination of described gas outlet and the wireway communicating pipe screw thread or cuff be connected.
Described communicating pipe is double end interface communicating pipe or bull interface communicating pipe.
Lower end, described carbonization chamber xsect is identical with the contact jaw shape of test concrete test block.
The utility model in process of the test, had both effectively utilized CO owing to adopt the structure of an atmosphere storehouse, the little carbonization of a plurality of independence chamber
2Gas also can increase the quantity of the concrete test block of test easily, or incites somebody to action the overdue concrete test block taking-up of test of accelerated carbonation, and does not influence the accelerated carbonation test of other concrete test block; The volume of carbonization chamber is little, seals convenient and reliablely, has saved the step of original concrete test block being carried out paraffin sealing, has simplified process of the test, has reduced experimentation cost; Whole test apparatus structure compactness, volume are little, simple and practical.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Description of symbols among the figure: 1-gas storehouse, 2-CO
2The concentration detector, 3-air intake opening, 4-rain glass, 5-gas bleed valve, 6-valve, 7-gas outlet, 8-double end interface communicating pipe, 9-wireway, 10-carbonization chamber, 11-O-ring seal, 12-concrete test block, 13-bull interface communicating pipe, 14-leakage port.
Embodiment
In order to understand the utility model better, below in conjunction with embodiment and accompanying drawing the technical solution of the utility model is further described, referring to Fig. 1:
Press a kind of concrete accelerated carbonation test unit that the utility model is implemented, it comprises 10 gentle storehouses 1, carbonization chamber, gas storehouse 1 is provided with air intake opening 3, gas outlet 7 and leakage port 14, air intake opening 3, gas outlet 7, leakage port 14 all are equipped with valve and are convenient to the independent control of carrying out to each mouthful, also be provided with gas analysis instrument on the gas storehouse 1, process of the test need be to the air pressure and the CO in gas storehouse 1
2Concentration test, so gas analysis instrument includes rain glass 4 and CO in the present embodiment
2Concentration detector 2.Improve the CO in gas storehouse 1 when needs
2Concentration the time, with air intake opening 3 and CO
2Air feed tank connects.The leakage port 14 in gas storehouse 1 is used for exhaust, and is equipped with gas bleed valve 5 it is controlled.Original test unit adopts the bigger carbonization case of volume to come for concrete test block 12 carbonizations, and the utility model then adopts the structure of a plurality of little carbonization chambers 10, and this structure had both effectively utilized CO
2Gas also can increase the quantity of the concrete test block 12 of test easily, or the overdue concrete test block 12 of test of accelerated carbonation takes out, in addition because the volume of carbonization chamber 10 is little, seals convenient and reliablely, has simplified process of the test, has reduced experimentation cost.
The number that 1 gas outlet 7, gas storehouse is provided with is relevant with the test group number of the volume in gas storehouse 1 and concrete test block 12, on the number of present embodiment gas outlet 7 be 30, the position of gas outlet 7 is not limit, with the side that is evenly distributed on gas storehouse 1 is good, gas outlet 7 is provided with the independent control that valve 6 is convenient to the carbonization chamber 10 of each, and in the process of the test of concrete accelerated carbonation, utilize the control of valve 6 can increase the quantity of the concrete test block 12 of test easily, or the overdue concrete test block 12 of test of accelerated carbonation has taken out, and does not influence the accelerated carbonation test of other concrete test block 12.
Use wireway 9 to be connected between gas outlet 7 and the carbonization chamber 10, wireway 9 is made by plastic tube or rubber tube or steel pipe, and plastic flexible pipe or rubber hose have pliability and better tightness preferably, so be good to select plastic flexible pipe or rubber hose for use.Use between the termination of 1 gas outlet 7, gas storehouse and the wireway 9 to be connected communicating pipe, connected mode adopts the mode of screw thread or cuff, to guarantee its impermeability.Communicating pipe can be double end interface communicating pipe 8 or bull interface communicating pipe 13, when concrete test block to be measured 12 quantity of test are not more than the quantity of gas outlet on the gas storehouse 1, can use double end interface communicating pipe 8, when concrete test block to be measured 12 quantity of test greater than gas storehouse 1 on during the quantity of gas outlet, then partly or entirely use bull interface communicating pipe 13, as three interface communicating pipes.10 lower ends, carbonization chamber are identical with the contact jaw shape of cross section of concrete test block 12, and concrete test block 12 all adopts the concrete test block 12 of corresponding test standard regulation, the test lead of carbonization chamber 10 and concrete test block 12 is connected by the O-ring seal of being made by the high resiliency latex material 11, O-ring seal 11 before use, its inboard is coated with vaseline, to guarantee sealing effectiveness.The utility model need be tested under 20 ± 3 ℃ the environment.
The utility model embodiment implementation process comprises following use step:
(1) check impermeability:
When the utility model is communicated with atmosphere, read the reading A on the rain glass 4; Carbonization of the present utility model chamber 10 is connected by O-ring seal 11 with the end to be measured of concrete test block 12 to be measured and seals, with air intake opening 3 and CO
2Air feed tank connects; Open the valve 6 on the gas outlet 7 that is in user mode, and close valve 6 and gas bleed valve 5 on the gas outlet 7 that is in unused state; Open air intake opening 3, feed a certain amount of CO
2Gas, close air intake opening 3, read the reading B on the rain glass 4, after 1 hour, observe barometer reading, if it is the basic no change of reading B illustrates that the test unit impermeability is good, more if reading B descends, illustrate that there is gas leak phenomenon in the utility model, the coupling part need be reconnected, the bubble-tight step of rechecking guarantees that impermeability of the present utility model is good again, carries out following step.
(2) concrete accelerated carbonation test:
Open gas bleed valve 5, with CO superfluous in the step (1)
2Behind the gas venting, close gas bleed valve 5; Open air intake opening 3, slowly feed CO
2Gas is worked as CO
2The reading of concentration detector 2 rises at 23% o'clock, closes air intake opening 3; The test of beginning concrete accelerated carbonation; In the concrete accelerated carbonation process of the test, work as CO
2The reading of concentration detector 2 was opened air intake opening 3 again less than 17% o'clock, fed CO
2Gas is worked as CO
2The reading of concentration detector 2 rises at 23% o'clock, closes air intake opening 3.
(3) carbonation depth is measured:
Above disclosed only is preferred embodiment of the present utility model, can not limit the interest field of the utility model certainly with this, and therefore the equivalence of being done according to the utility model claim changes, and still belongs to protection domain of the present utility model.
Claims (6)
1. concrete accelerated carbonation test unit, it is characterized in that: it includes gas storehouse (1), carbonization chamber (10), gas storehouse (1) is provided with air intake opening (3), gas outlet (7), leakage port (14), described air intake opening (3) and gas outlet (7) all are equipped with valve (6), described leakage port (14) is equipped with gas bleed valve (5), the air intake opening (3) and the CO of gas storehouse (1)
2Feeder is connected, the gas outlet (7) in gas storehouse (1) is provided with more than one, gas outlet (7) is connected with carbonization chamber (10), and the test lead of lower end, carbonization chamber (10) and concrete test block (12) is connected by O-ring seal (11), and gas storehouse (1) is provided with gas analysis instrument.
2. concrete accelerated carbonation test unit according to claim 1 is characterized in that: described gas analysis instrument comprises rain glass (4) and CO
2Concentration detector (2).
3. concrete accelerated carbonation test unit according to claim 1 is characterized in that: the wireway (9) that make by plastic tube or rubber tube or steel pipe described gas outlet (7) is connected with carbonization chamber (10).
4. concrete accelerated carbonation test unit according to claim 3 is characterized in that: use between the termination of described gas outlet (7) and the wireway (9) communicating pipe screw thread or cuff be connected.
5. concrete accelerated carbonation test unit according to claim 4 is characterized in that: described communicating pipe is double end interface communicating pipe (8) or bull interface communicating pipe (13).
6. the described concrete accelerated carbonation of claim 1 test unit is characterized in that: lower end, described carbonization chamber (10) xsect is identical with the contact jaw shape of test concrete test block (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202167957U CN201673151U (en) | 2010-06-08 | 2010-06-08 | Concrete accelerated carbonization tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202167957U CN201673151U (en) | 2010-06-08 | 2010-06-08 | Concrete accelerated carbonization tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673151U true CN201673151U (en) | 2010-12-15 |
Family
ID=43330563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202167957U Expired - Lifetime CN201673151U (en) | 2010-06-08 | 2010-06-08 | Concrete accelerated carbonization tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673151U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196820A (en) * | 2013-04-02 | 2013-07-10 | 浙江建设职业技术学院 | Durability carbonization test device and method of tunnel segment |
| RU2502711C1 (en) * | 2012-07-05 | 2013-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" | Apparatus for determining concrete carbonation kinetics |
| CN110187083A (en) * | 2019-06-10 | 2019-08-30 | 同济大学 | A kind of cement-based material carbonization test test device and test method |
| CN110346272A (en) * | 2019-08-12 | 2019-10-18 | 重庆交通大学 | Concrete carbonization drying and watering cycle simulation system and analogy method |
| CN112213254A (en) * | 2020-10-16 | 2021-01-12 | 南京林业大学 | Carbonization test device with adjustable carbon dioxide concentration |
| CN113414862A (en) * | 2021-05-27 | 2021-09-21 | 江汉大学 | Novel carbonization maintenance device for preparing low-carbon cement-based material |
-
2010
- 2010-06-08 CN CN2010202167957U patent/CN201673151U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2502711C1 (en) * | 2012-07-05 | 2013-12-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" | Apparatus for determining concrete carbonation kinetics |
| CN103196820A (en) * | 2013-04-02 | 2013-07-10 | 浙江建设职业技术学院 | Durability carbonization test device and method of tunnel segment |
| CN110187083A (en) * | 2019-06-10 | 2019-08-30 | 同济大学 | A kind of cement-based material carbonization test test device and test method |
| CN110346272A (en) * | 2019-08-12 | 2019-10-18 | 重庆交通大学 | Concrete carbonization drying and watering cycle simulation system and analogy method |
| CN112213254A (en) * | 2020-10-16 | 2021-01-12 | 南京林业大学 | Carbonization test device with adjustable carbon dioxide concentration |
| CN112213254B (en) * | 2020-10-16 | 2022-03-11 | 南京林业大学 | Carbonization test device with adjustable carbon dioxide concentration |
| CN113414862A (en) * | 2021-05-27 | 2021-09-21 | 江汉大学 | Novel carbonization maintenance device for preparing low-carbon cement-based material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CHINA CONSTRUCTION THIRD ENGINEERING BUREAU CO., LTD. Effective date: 20120709 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120709 Address after: 430074 Hubei province Wuhan city East Lake high tech Zone Huaguang Road No. 18 hi tech building 13 floor Patentee after: China Construction Commercial Concrete Co., Ltd. Address before: 430074 Hubei province Wuhan city East Lake high tech Zone Huaguang Road No. 18 hi tech building 13 floor Co-patentee before: China Construction Third Engineering Bureau Co., Ltd. Patentee before: China Construction Commercial Concrete Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |