CN105911260A - Testing device for repairing concrete cracks through microorganisms - Google Patents
Testing device for repairing concrete cracks through microorganisms Download PDFInfo
- Publication number
- CN105911260A CN105911260A CN201610439956.0A CN201610439956A CN105911260A CN 105911260 A CN105911260 A CN 105911260A CN 201610439956 A CN201610439956 A CN 201610439956A CN 105911260 A CN105911260 A CN 105911260A
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- Prior art keywords
- concrete
- plate
- drive screw
- distress
- movable end
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 244000005700 microbiome Species 0.000 title abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 230000009429 distress Effects 0.000 claims description 21
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 210000005056 cell body Anatomy 0.000 claims description 3
- 238000007599 discharging Methods 0.000 abstract 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 238000005067 remediation Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008439 repair process Effects 0.000 description 6
- 238000005336 cracking Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 101000965313 Legionella pneumophila subsp. pneumophila (strain Philadelphia 1 / ATCC 33152 / DSM 7513) Aconitate hydratase A Proteins 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000193395 Sporosarcina pasteurii Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 229920005479 Lucite® Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007983 Tris buffer Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 241000307523 Xenostegia media Species 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229940041514 candida albicans extract Drugs 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000012533 medium component Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000012138 yeast extract Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a testing device for repairing concrete cracks through microorganisms. The testing device comprises a testing tank. Two concrete samples which are opposite left and right are placed in the testing tank, and a clearance is formed between the two concrete samples. The testing tank is composed of a bottom plate, two movable end plates in bilateral symmetry, and two side plates symmetric front and back. The two side plates are connected through split bolts. The movable end plates are arranged between the concrete samples and transmission screws. The transmission screws are supported by supporting plates. Concrete sample moving rail grooves are formed in the bottom plate. The center of the bottom plate is connected with a discharging pipe. A valve is arranged on the discharging pipe. The concrete cracks different in width can be formed fast by rotating the transmission screws, so that time is saved. After the concrete cracks are formed, the widths of the concrete cracks can still be adjusted.
Description
Technical field
The present invention relates to the experimental rig of a kind of repairing concrete crack, particularly relate to a kind of microorganism remediation coagulation soil cracking
The experimental rig of seam.
Background technology
In water engineering facility, concrete can be because of the reason such as plastic shrinkage, the temperature difference, differential settlement, bearing capacity be excessive
Producing crack, the surface crack of concrete can accelerate the erosion of concrete, and the deeper clefts of concrete, then can cause knot
The seepage of structure, affect the stable of structure and safety.Therefore, crack to concrete is repaired in time is particularly important.
At present, the method for repairing concrete crack has a lot, has surface spraying, crack filling, glued crack etc., instantly, companion
Along with multi-disciplinary intersection and the comprehensive developments such as biological, chemistry and ground, a kind of nonhazardous, environmental protection, durable microorganism
Induction tosca technology (MICP) becomes more potentiality and solves the novel means of distress in concrete problem, but,
Coming in every shape of distress in concrete, the reason of concrete cracking is different, the form of distress in concrete, happening part and point
Cloth situation is different, adds the temperature of crack local environment, humidity, stress condition difference, and the development in crack is the most not
The most identical.In the face of complicated distress in concrete, how effectively microorganism remediation technology can be widely used in actual work
Journey field, remains a stubborn problem.Accordingly, it would be desirable to a kind of different in width distress in concrete of can easily forming
The experimental rig of microorganism remediation distress in concrete, in order to see clearly microorganism induction tosca technology (MICP) and repair
The mechanism of multiple distress in concrete, systematically monitors owing to distress in concrete self structure and external environment affect and cause biology
The unstability phenomenon of repair process, thus, science improvement bioremediation technology, formulates more fully targetedly,
Effectively, economic technical standard, explore the optimum reagent concentration in the crack of the concrete repairing one fixed width, most preferably use
Amount, and concrete operating process, the detection mode to the distress in concrete after repairing, it is ensured that its meet intensity, impervious,
Requirement such as freeze proof grade.
Summary of the invention
The present invention solves technical problem present in known technology and the test of a kind of microorganism remediation distress in concrete is provided
Device, this device can easily form the distress in concrete of different in width.
The present invention solves that technical problem is adopted the technical scheme that present in known technology: a kind of biological prosthetic coagulation
The experimental rig of soil cracking seam, including test flume, lays two concrete samples that left and right is relative in described test flume,
It is formed with gap between two described concrete samples；Described test flume is by base plate, symmetrical two pieces of movable ends
Plate and two blocks of symmetrical front and back side plates are formed；The two ends of described side plate are provided with stretch out outside described test flume cell body overhanging
Section, two blocks of described side plates are linked together by the split bolt being arranged on described overhanging section；Described movable end plate is arranged
Between described concrete sample and drive screw, described drive screw is supported by gripper shoe, affixed in described gripper shoe
There is the nut being connected with described drive screw, be connected with draw back plate at described drive screw near the end of described movable end plate,
Described draw back plate is vertical with described drive screw, is provided with the spacing knot of described draw back plate on the outer face of described movable end plate
Structure, described drive screw and described movable end plate are connected by described draw back plate and described position limiting structure；On described base plate
It is formed with concrete sample moving rail groove；Central authorities at described base plate connect delivery pipe, is provided with valve on described delivery pipe
Door.
Sealed silicon rubber cushion it is provided with between described side plate and described concrete sample.
Being provided with rule in the region that described side plate is corresponding with described test flume, described rule is horizontally disposed with.
Described side plate uses poly (methyl methacrylate) plate to make.
The present invention has the advantage that with good effect: by rotary drive screw rod, can quickly form the mixed of different in width
Solidifying soil cracking seam, saves the time；After distress in concrete is formed, the fracture width of concrete is the most adjustable.At concrete sample
And silicagel pad is set between side plate, it is possible to ensures the sealing of side plate, prevents the seepage of reagent.Test material mainly uses
Poly (methyl methacrylate) plate, low cost.Phenomenon during microorganism remediation distress in concrete is it will be seen that be conducive to analyzing examination
Test process, find rule.On adding once before reagent, last reagent can go out by eduction valve door row, beneficially
Proceeding of microorganism remediation crack.The present invention has efficiently, and low cost and other advantages has good prospect of the application.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the side view of Fig. 1.
In figure: 1, gripper shoe, 2, movable end plate, 3, drive screw, 4, base plate, 5, valve, 6, concrete examination
Part, 7, split bolt, 8, side plate, 9, gap, 10, delivery pipe, 11, rule, 12, concrete sample moves
Rail groove.
Detailed description of the invention
For the summary of the invention of the present invention, feature and effect can be further appreciated that, hereby enumerate following example, and coordinate accompanying drawing
Describe in detail as follows:
Refer to Fig. 1, the experimental rig of a kind of biological prosthetic distress in concrete, including test flume, pacify in described test flume
It is placed with two concrete samples 6 that left and right is relative, between two described concrete samples 6, is formed with gap 9.This gap
9 need the distress in concrete using MICP to repair exactly.
Described test flume is to be formed by base plate 4, symmetrical two pieces of movable end plates 2 and two blocks of symmetrical front and back side plates 8,
The two ends of described side plate 8 are provided with overhanging section stretched out outside described test flume cell body, and two blocks of described side plates 8 are by being arranged on
Split bolt 7 on described overhanging section links together.Described movable end plate 2 is arranged on described concrete sample 6 and passes
Between dynamic screw rod 3, described drive screw 3 is supported by gripper shoe 1, is connected with and described transmission in described gripper shoe 1
The nut that screw rod 3 connects, is connected with draw back plate at described drive screw 3 near the end of described movable end plate 2, described
Draw back plate is vertical with described drive screw 3, is provided with the spacing knot of described draw back plate on the outer face of described movable end plate 2
Structure, described drive screw 3 and described movable end plate 2 are connected by described draw back plate and described position limiting structure.At the described end
Concrete sample moving rail groove 12 it is formed with on plate 4；Central authorities at described base plate 4 connect has delivery pipe 10, described row
Put pipe 10 and be provided with valve 5.
In the present embodiment, in order to prevent reagent from leaking, it is provided with between described side plate 8 and described concrete sample 6
Sealed silicon rubber cushion.Obtain the width in gap 9 for convenience, set in the region that described side plate 8 is corresponding with described test flume
Rule 11, described rule 11 is had to be horizontally disposed with.
Arranging nut in gripper shoe 1, provide to drive screw 3 and support, drive screw 3 is with movable end plate 2 even simultaneously
Connect, control moving left and right of concrete sample 6, play the effect of regulation fracture width.Side plate 8 arranges rule
11, can directly read the width in crack.Side plate 8 is detachable, it is simple to concrete sample 6 is placed on base plate 4 in advance
On rail groove.Rail groove controls the movement locus of concrete sample 6, it is ensured that it is for linear motion.Side plate 8 uses lucite
Plate is made, visual strong, it is simple to observe the process of microorganism remediation distress in concrete.Delivery pipe 10 is arranged on two coagulations
Between soil test specimen, it is simple to the discharge of reagent in crack.
The application of the present invention:
1) first base plate 4 is placed on the testing stand of level, two block concrete test specimens 6 are polished into design shape, so
On rear placement groove in-orbit, rotary drive screw rod 3, make movable end plate 2 fit completely with concrete sample 6, then proceed to rotation
Turn drive screw 3, make drive screw 3 promote concrete sample to translate forward, till fracture width reaches preset value.
2) between concrete sample 6 and side plate 8, pad sealed silicon rubber cushion, then tighten the screw on split bolt 7,
Ensure the sealing of device.
3) in crack, add Bacillus pasteurii liquid, after standing 3～12h, valve 5 opened, get rid of liquid,
In crack, add concentration be again the urea of 1M and the mixed liquor of calcium chloride, after standing 3～12h, then add bacterium solution,
Stand, add consolidating fluid, standing, observe crack through poly (methyl methacrylate) plate and repair situation, until the liquid added no longer can
Flow out valve 5, till crack repairs.Bacillus pasteurii, buys at U.S.'s strain library, numbering ATCC11859, carefully
The training method of bacterium: in shaking table, rotating speed 220rpm/min, cultivates 24 hours under the conditions of 30 DEG C.Medium component 17.5g/L
Tris, 20g/L yeast extract, 10g/L ammonium sulfate.
4) after treating that crack repairs, unscrew the screw on split bolt 7, side plate 8 is unloaded, then rotary drive spiral shell
Bar 3 makes movable end plate 2 be moved rearwards by, and the concrete sample repaired just can take out.
Whole process of the test is in good order, facility simple to operate, and phenomenon is easy to observe, the beneficially analysis of result.
Although the preferred embodiments of the present invention being described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned
Detailed description of the invention, above-mentioned detailed description of the invention is only schematically, is not restrictive, this area general
Logical technical staff is under the enlightenment of the present invention, in the case of without departing from present inventive concept and scope of the claimed protection,
Can be to make a lot of form, within these belong to protection scope of the present invention.
Claims (4)
1. the experimental rig of a biological prosthetic distress in concrete, it is characterised in that include test flume, at described test flume
Inside lay two concrete samples that left and right is relative, between two described concrete samples, be formed with gap；Described examination
Check of foundation subsoil is to be formed by base plate, symmetrical two pieces of movable end plates and two blocks of symmetrical front and back side plates；The two of described side plate
End is provided with overhanging section stretched out outside described test flume cell body, and two blocks of described side plates are right by be arranged on described overhanging section
Draw and be bolted together；Described movable end plate is arranged between described concrete sample and drive screw, described transmission spiral shell
Bar is supported by gripper shoe, is connected with the nut being connected with described drive screw in described gripper shoe, at described drive screw
Being connected with draw back plate near the end of described movable end plate, described draw back plate is vertical with described drive screw, in described activity
The outer face of end plate is provided with the position limiting structure of described draw back plate, described drive screw and described movable end plate pass through described in push away
Arm-tie and described position limiting structure connect；Described base plate is formed concrete sample moving rail groove；In described base plate
Centre connection has delivery pipe, is provided with valve on described delivery pipe.
The experimental rig of biological prosthetic distress in concrete the most according to claim 1, it is characterised in that in described side
Sealed silicon rubber cushion it is provided with between plate and described concrete sample.
The experimental rig of biological prosthetic distress in concrete the most according to claim 1, it is characterised in that in described side
Being provided with rule in the region that plate is corresponding with described test flume, described rule is horizontally disposed with.
The experimental rig of biological prosthetic distress in concrete the most according to claim 1, it is characterised in that described side plate
Poly (methyl methacrylate) plate is used to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439956.0A CN105911260B (en) | 2016-06-15 | 2016-06-15 | A kind of experimental rig of microorganism remediation distress in concrete |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610439956.0A CN105911260B (en) | 2016-06-15 | 2016-06-15 | A kind of experimental rig of microorganism remediation distress in concrete |
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| CN105911260A true CN105911260A (en) | 2016-08-31 |
| CN105911260B CN105911260B (en) | 2018-01-12 |
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Cited By (8)
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|---|---|---|---|---|
| CN106893675A (en) * | 2017-03-16 | 2017-06-27 | 河南工业大学 | Acceleration reaction unit of the mould on the durability influence of concrete in a kind of simulation silo |
| CN107192793A (en) * | 2017-05-31 | 2017-09-22 | 郑州大学 | Distress in concrete grouting material concrete castability test method |
| CN109374859A (en) * | 2018-10-19 | 2019-02-22 | 成都理工大学 | A kind of adjustable crack core holding unit of slit width |
| CN109765354A (en) * | 2018-12-14 | 2019-05-17 | 重庆市排水有限公司 | A kind of pond body crack repairing test pond |
| CN112179832A (en) * | 2019-07-05 | 2021-01-05 | 中国石油天然气股份有限公司 | Indoor simulation experiment device and method for dynamic erosion corrosion of carbon dioxide to cement |
| CN112415175A (en) * | 2020-12-15 | 2021-02-26 | 中国路桥工程有限责任公司 | Physical model test device for ground fissure |
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN114062223A (en) * | 2021-11-15 | 2022-02-18 | 西南石油大学 | Device for repairing cracks based on biotechnology |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106893675A (en) * | 2017-03-16 | 2017-06-27 | 河南工业大学 | Acceleration reaction unit of the mould on the durability influence of concrete in a kind of simulation silo |
| CN107192793A (en) * | 2017-05-31 | 2017-09-22 | 郑州大学 | Distress in concrete grouting material concrete castability test method |
| CN109374859A (en) * | 2018-10-19 | 2019-02-22 | 成都理工大学 | A kind of adjustable crack core holding unit of slit width |
| CN109765354A (en) * | 2018-12-14 | 2019-05-17 | 重庆市排水有限公司 | A kind of pond body crack repairing test pond |
| CN109765354B (en) * | 2018-12-14 | 2023-12-22 | 重庆市排水有限公司 | Cell body crack repair test pool |
| CN112179832A (en) * | 2019-07-05 | 2021-01-05 | 中国石油天然气股份有限公司 | Indoor simulation experiment device and method for dynamic erosion corrosion of carbon dioxide to cement |
| CN112611856A (en) * | 2020-11-26 | 2021-04-06 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN112611856B (en) * | 2020-11-26 | 2022-07-01 | 重庆交通职业学院 | Microbial remediation test device capable of changing crack angle |
| CN112415175A (en) * | 2020-12-15 | 2021-02-26 | 中国路桥工程有限责任公司 | Physical model test device for ground fissure |
| CN112415175B (en) * | 2020-12-15 | 2023-01-06 | 中国路桥工程有限责任公司 | Physical model test device for ground fissure |
| CN114062223A (en) * | 2021-11-15 | 2022-02-18 | 西南石油大学 | Device for repairing cracks based on biotechnology |
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