CN108398373A - A kind of detection method of microbiologic(al) corrosion normal concrete - Google Patents
A kind of detection method of microbiologic(al) corrosion normal concrete Download PDFInfo
- Publication number
- CN108398373A CN108398373A CN201810393598.3A CN201810393598A CN108398373A CN 108398373 A CN108398373 A CN 108398373A CN 201810393598 A CN201810393598 A CN 201810393598A CN 108398373 A CN108398373 A CN 108398373A
- Authority
- CN
- China
- Prior art keywords
- concrete
- corrosion
- microbiologic
- corrosion condition
- reactor
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental & Geological Engineering (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
The invention discloses a kind of detection methods of microbiologic(al) corrosion concrete, including step：1) it takes and needs to monitor the water sample at corrosion condition, be placed in half leaching and the reactor soaked entirely and carry out soak test, using 15 days as one replacement cycle；2) the concrete type at corrosion condition is monitored as required prepares concrete sample, the test point 2 being placed under the gas-liquid interface of reactor；3) see whether blue-green color change occur, meanwhile, whether half leaching position of observation there is aggregate exposure, and whether the position of immersed in liquid level will appear arrisdefect phenomenon；It then can be concluded that if there is phenomenon described in step 3)：There are microorganisms to the corrosion condition of concrete.
Description
Technical field
The present invention relates to concrete erosion field, more particularly to a kind of detection method of microbiologic(al) corrosion normal concrete.
Background technology
Corrosion for sewage tube wall concrete has just started the harmful chemicals object that people are regarded as inside muddy sewage
Caused by matter, but some scholars detect chemical substance in water and find that concentration is unlikely to corrosion concrete.N.De Belie etc.
People has found that microbiologic(al) corrosion is serious more than general chemical sulfuric acid, under the same terms by chemical sulfuric acid, biological sulfuric acid experimental study
Chemical attack depth is 0.4mm, and biological corrosion is 0.8mm.Parker it is also proposed that dirty concrete in water corrosion mainly by
Caused by microorganism.
Numerous countries also report in succession later：Because microbiologic(al) corrosion causes larger economic loss.Such as：Repair micro- in Los Angeles
The pipeline that biology damages will spend 400,000,000 Euros, and Germany is every year for repairing the fund for the sewerage being totally disrupted about
It it is 100,000,000,000 Euros, the loss caused by the biological sulfuric acid corrosion of sewage conduct is about 5,000,000 to Flanders (Belgium) every year
Euro.The breakoff phenomenon of concrete caused by the area such as China Nanjing also microbiologic(al) corrosion occurs in succession.Meanwhile concrete tries
The extent of the destruction that part is subjected in different location is different, how to determine whether there is the microbiologic(al) corrosion of concrete, is
It finds and determines to take to prevent from damaging the essential step for further expanding measure in advance in practice.
Invention content
In order to find the microbiologic(al) corrosion situation of concrete in advance in practice, current inventor provides a kind of detection sides
Method.
The object of the present invention is to provide a kind of detection methods of microbiologic(al) corrosion concrete, including step：
1) it takes and needs to monitor the water sample at corrosion condition, be placed in half leaching and the reactor soaked entirely and carry out soak test, with
It is used as a replacement cycle within 15 days.
2) the concrete type at corrosion condition is monitored as required and prepares concrete sample, is placed on the gas-liquid of reactor
Test point 2 under interface.
3) see whether blue-green color change occur, meanwhile, whether half leaching position of observation there is aggregate exposure, immerses liquid
Whether the position in face will appear arrisdefect phenomenon.
4) it if there is phenomenon described in step 3), then can be concluded that：There are microorganisms to the corrosion condition of concrete, answers
Regulation precautionary measures are taken early.
The present invention by microbiologic(al) corrosion concrete test and result
In order to understand fully microorganism to the dissolved oxygen situation of concrete erosion and liquid level and the hydrogen sulfide of corrosion be caused to dissolve feelings
Condition further improves normal concrete microbiologic(al) corrosion mechanism, determines the corrosion rate of different location, inventor is to different location
Test specimen corrosion condition is studied.
The present inventor designs and has carried out following microbiologic(al) corrosion concrete test.
1) culture corrosion microorganism used
Sulfur-oxidizing bacteria is taken, in 290 culture medium (Na2HPO4:1.2g/L, KH2PO4:1.8g/L, (NH4)2SO4:0.1g/L,
CaCl2:0.03g/L, FeCl3:0.02g/L, MgSO4:0.1g/L, MnSO4:0.02g/L, Na2S2O3:After 10g/L) activating, put
Be placed in 35 DEG C, in 170r/min shaken cultivations case after culture 4 days for testing.
2) cement 1.0, sand 1.96, stone 2.63, additive 0.0068, water 0.52 are taken by quality, in 100*100*
It is molded in the die trial of 100mm, C30 ordinary concrete specimens is made.Maintenance is used to test after 28 days.
3) microbiologic(al) corrosion concrete test is carried out
Soak test is carried out in cultured sulfur-oxidizing bacteria being placed into half leaching and the reactor that soaks entirely.In view of micro- life
The experimental phenomena of the growth rhythm of object and setting observation age, select 15 days as a replacement cycle.
Test specimen is placed at the position of test point 1,2,3,4,5：Position 1,2 is respectively concrete sample in half leaching environment
At the gas-liquid interface upper and lower position of side, position 3 is that concrete sample immerses solution side lower position in half leaching environment,
Position 4,5 is respectively to be immersed at the side upper and lower position of solution under full leaching environment.Gas-liquid interface test point 1 setting up and down,
2, it is to preferably be compared.
Set-point 2,3,4,5 is used as test point, can reflect oxygen concentration, sulfureted hydrogen gas concentration to corrosion rate substantially
Influence.
Test specimen placement location schematic diagram is shown in Fig. 2.
Test specimen exterior appearance figure is shown in Fig. 3 after microbiologic(al) corrosion.
4) it is according to the observation of experiment process and final result, the conclusion (of pressure testing) that we obtain：
When 40 days initial stages, microorganism grows required nutriment sodium thiosulfate hydrolysis and generates S2-In ion and cement
Fe2+、Mn2+It generates blue-green FeS and MnS hard to tolerate and is attached to concrete surface；In 180 days later stages, microorganism is by the S of low price2-From
Son is converted into the S or SO of high price4 2-, therefore color disappears；
And corrosion rate point 2>3>4>5,2 corrosion rates of point are most fast, this is because point 2 has sufficient oxygen compared with other points
And hydrogen sulfide gas.
Description of the drawings
Fig. 1 is the growth curve chart of microorganism used therefor in microbiologic(al) corrosion concrete test.Wherein：Abscissa is the time
(number of days), ordinate are bacterium numbers (× 108/mL)。
Fig. 2 is that concrete sample places schematic diagram in microbiologic(al) corrosion concrete test；Wherein：
Position 1,2 is respectively in half leaching environment at the gas-liquid interface upper and lower position of concrete sample side, and position 3 is half
It soaks concrete sample in environment and immerses solution side lower position, position 4,5 is respectively the side for immersing solution under full leaching environment
At the upper and lower position of face.
Fig. 3 is test specimen exterior appearance figure after microbiologic(al) corrosion in microbiologic(al) corrosion concrete test.Wherein：
SB40 is：Test specimen exterior appearance after bacterium solution is impregnated 40 days under half leaching environment；SB180：It is soaked for test specimen under half leaching environment
Exterior appearance after bubble 180 days；SQ40 is：Exterior appearance after test specimen impregnates 40 days under full leaching environment；SQ180 is：Under full leaching environment
Exterior appearance after test specimen impregnates 180 days；
There is apparent aggregate exposure (as shown in SB180 in Fig. 3), roughness value 0 day at SB180 gas-liquid interfaces i.e. point 2
Become 1.873 μm (such as Fig. 4 (a), (b)) after being 0.733 μm, 180 days；
And there is arrisdefect phenomenon in 3 edges and corners of SB180 points
Fig. 4 is the super depth-of-field microscope 3D figures at SB180 points 2 in microbiologic(al) corrosion concrete test.Wherein：
(a) it is the 3D figures of 0 day point 2, is (b) the 3D figures of 180 days points 2.
This expression, dissolving of the microorganism to the corrosion of concrete and the dissolved oxygen situation of liquid level and the hydrogen sulfide for causing corrosion
Situation is related.
The present invention is described in further detail below by embodiment for specific implementation mode, but does not limit this hair
It is bright.
The water sample needed at detection is taken, is placed in half leaching and the reactor soaked entirely and carries out soak test, with 15 days for one
Replacement cycle.
The concrete type at corrosion condition is monitored as required and prepares concrete sample, and is placed in gas-liquid interface
Under test point, that is, the position of the test point 2 in Fig. 2.
The observation of test specimen and result judgement：
See whether blue-green color change occur, meanwhile, whether half leaching position of observation there is aggregate exposure, immersed in liquid level
Position whether will appear arrisdefect phenomenon.
When there is above-mentioned phenomenon, then can be concluded that：There are microorganisms to the corrosion condition of concrete, at this time can be accordingly
Corresponding prevention management measure is taken early.
Claims (1)
1. a kind of detection method of microbiologic(al) corrosion concrete, including step：
1) it takes and needs to monitor the water sample at corrosion condition, be placed in half leaching and the reactor soaked entirely and carry out soak test, with 15 days
As a replacement cycle；
2) the concrete type at corrosion condition is monitored as required and prepares concrete sample, and the gas-liquid for being placed on reactor is had a common boundary
Test point 2 under face；
3) see whether blue-green color change occur, meanwhile, whether half leaching position of observation there is aggregate exposure, immersed in liquid level
Whether position will appear arrisdefect phenomenon；
4) it if there is phenomenon described in step 3), then can be concluded that：There are microorganisms to the corrosion condition of concrete, should be early
Take regulation precautionary measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393598.3A CN108398373A (en) | 2018-04-27 | 2018-04-27 | A kind of detection method of microbiologic(al) corrosion normal concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393598.3A CN108398373A (en) | 2018-04-27 | 2018-04-27 | A kind of detection method of microbiologic(al) corrosion normal concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108398373A true CN108398373A (en) | 2018-08-14 |
Family
ID=63100692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810393598.3A Pending CN108398373A (en) | 2018-04-27 | 2018-04-27 | A kind of detection method of microbiologic(al) corrosion normal concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108398373A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746200A (en) * | 2019-11-01 | 2020-02-04 | 北京师范大学 | Method for corroding concrete and streptococcus mutans used by same |
| CN112798765A (en) * | 2019-11-13 | 2021-05-14 | 石家庄铁道大学 | Characterization method of concrete corroded by sulfur oxidizing bacteria |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100706537B1 (en) * | 2006-09-05 | 2007-04-13 | 삼성물산 주식회사 | Artificial promoting test apparatus for microbiological corrosion of concrete and evaluation method for microbiological anti-corrosion using the same |
| CN106644909A (en) * | 2016-11-30 | 2017-05-10 | 天津城建大学 | Device for simulating formation of biological sulfate and experimental method |
| CN107586080A (en) * | 2017-08-04 | 2018-01-16 | 河海大学 | A kind of sewage concrete pipe concrete of antimicrobial corrosion and preparation method and application |
| CN107607463A (en) * | 2017-09-15 | 2018-01-19 | 天津大学 | A kind of concrete sewer corrosion detecting method |
| CN107741395A (en) * | 2017-12-01 | 2018-02-27 | 石家庄铁道大学 | Simulate the experimental provision and method of non-flowing full sewage conduct concrete erosion |
-
2018
- 2018-04-27 CN CN201810393598.3A patent/CN108398373A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100706537B1 (en) * | 2006-09-05 | 2007-04-13 | 삼성물산 주식회사 | Artificial promoting test apparatus for microbiological corrosion of concrete and evaluation method for microbiological anti-corrosion using the same |
| CN106644909A (en) * | 2016-11-30 | 2017-05-10 | 天津城建大学 | Device for simulating formation of biological sulfate and experimental method |
| CN107586080A (en) * | 2017-08-04 | 2018-01-16 | 河海大学 | A kind of sewage concrete pipe concrete of antimicrobial corrosion and preparation method and application |
| CN107607463A (en) * | 2017-09-15 | 2018-01-19 | 天津大学 | A kind of concrete sewer corrosion detecting method |
| CN107741395A (en) * | 2017-12-01 | 2018-02-27 | 石家庄铁道大学 | Simulate the experimental provision and method of non-flowing full sewage conduct concrete erosion |
Non-Patent Citations (6)
| Title |
|---|
| MA. GUADALUPE D. GUTIÉRREZ-PADILLA等: "Biogenic sulfuric acid attack on different types of commercially produced concrete sewer pipes", 《CEMENT AND CONCRETE RESEARCH》 * |
| 包昕: "污水环境下混凝土的劣化行为及预测研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》 * |
| 张小伟等: "混凝土微生物腐蚀的作用机制和研究方法", 《建筑材料学报》 * |
| 朱绒霞: "钢筋混凝土微生物腐蚀", 《装备环境工程》 * |
| 王萌: "城市生活污水对混凝土的腐蚀及防治研究", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 高冬梅等主编: "《环境微生物实验》", 30 September 2014, 中国海洋大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110746200A (en) * | 2019-11-01 | 2020-02-04 | 北京师范大学 | Method for corroding concrete and streptococcus mutans used by same |
| CN112798765A (en) * | 2019-11-13 | 2021-05-14 | 石家庄铁道大学 | Characterization method of concrete corroded by sulfur oxidizing bacteria |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jiang et al. | Erosional behavior of gravel-sand mixtures stabilized by microbially induced calcite precipitation (MICP) | |
| Lu et al. | Growth kinetics of Candidatus ‘Methanoperedens nitroreducens’ enriched in a laboratory reactor | |
| CN108398373A (en) | A kind of detection method of microbiologic(al) corrosion normal concrete | |
| Sabour et al. | Corrosion prediction using the weight loss model in the sewer pipes made from sulfur and cement concretes and Response Surface Methodology (RSM) | |
| CN106379992B (en) | A kind of river repair the quick start method of biofilm system biofilm step by step | |
| Mainardis et al. | Respirometry tests in wastewater treatment: Why and how? A critical review | |
| CN109160581A (en) | Determine the methods and applications of the electrolysis time of electrochemical treatments high ammonia-nitrogen wastewater with high salt | |
| CN104478139B (en) | Closed type printing and dyeing waste water processing system | |
| Xie et al. | Influence of anion and sulfate-reducing bacteria on the stress corrosion behavior and mechanism of X70 steel in a marine mud environment | |
| Tian et al. | Influence of the grouting parameters on microbially induced carbonate precipitation for soil stabilization | |
| CN110187059A (en) | For the column experiments simulation system and analogy method in situ in underground water well | |
| CN109019892A (en) | A kind of regulation method based on data assimilation on-line optimization aeration quantity | |
| CN211206194U (en) | Corrosion loop experiment device for seawater dry-wet alternative environment | |
| CN108178327A (en) | For the microbe to screen enrichment method of black and odorous water river regulation and its application | |
| CN107502651B (en) | Method for evaluating robustness of activated sludge system based on calcium strengthening effect | |
| CN106350047B (en) | A kind of oil gas field corrosion inhibiter and preparation method thereof | |
| CN214628353U (en) | Ocean angiosperm water flow simulation device in closed ecological system | |
| CN109047324A (en) | Improve the method for phosphor polluted soil | |
| Li et al. | Effect of interface chloride ion perturbation on oscillatory electrodissolution | |
| Eusebi et al. | Behaviour of air diffusers and oxygen transfer efficiencies in the biological treatment of matrices at high alkalinity concentrations: Experimental and full scale application | |
| CN103488117B (en) | A kind of Sewage Plant water inlet toxicity early warning and monitoring device | |
| Zimin | Improvement of acid solutions for stimulation of compacted high-temperature carbonate collectors | |
| CN111792759A (en) | Sewage sludge conditioning process and system based on carbon source recycling | |
| CN219010082U (en) | Sidestream sludge strengthening system | |
| CN104062222A (en) | Device and method for testing service life of grouting material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180814 |