CN107389906A - For testing the experimental provision system of distress in concrete self-healing ability - Google Patents
For testing the experimental provision system of distress in concrete self-healing ability Download PDFInfo
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- CN107389906A CN107389906A CN201710778177.8A CN201710778177A CN107389906A CN 107389906 A CN107389906 A CN 107389906A CN 201710778177 A CN201710778177 A CN 201710778177A CN 107389906 A CN107389906 A CN 107389906A
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- 238000012360 testing method Methods 0.000 title claims abstract description 173
- 239000004567 concrete Substances 0.000 title claims abstract description 98
- 230000009429 distress Effects 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000012780 transparent material Substances 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 115
- 238000002474 experimental method Methods 0.000 abstract description 21
- 238000011160 research Methods 0.000 abstract description 7
- 230000035876 healing Effects 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 239000003822 epoxy resin Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000005345 coagulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 241000208340 Araliaceae Species 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 2
- 235000003140 Panax quinquefolius Nutrition 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000008434 ginseng Nutrition 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 235000008113 selfheal Nutrition 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Classifications
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- 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
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- 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)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of experimental provision system for being used to test distress in concrete self-healing ability, belong to water conservancy field of civil engineering, it can be studied in concrete natural healing abilities, biological modeling self-healing is studied and mixed in cement base special material and realizes the testing field applications such as self-healing capability research.The tank height of the present invention can adjust, and then can flexible modulation experiment hydraulic pressure force value；The Healing Experiments of multigroup test specimen can be carried out simultaneously；Applying hydraulic pressure can be carried out from top to bottom, can also be carried out from below to up；The shape of concrete sample is unlimited, square or cylindrical；By the observation window of transparent material formation, crack closure situation can be recorded with all-the-way tracking in experimentation.The present invention can be and simple in construction from the crack self-healing ability of multi-angle research concrete sample, easy to operate.
Description
Technical field
The present invention relates to a kind of experimental provision system for being used to test distress in concrete self-healing ability, belong to water conservancy building work
Journey field, it can be studied in concrete natural healing abilities, biological modeling self-healing research and the incorporation special material reality in cement base
The testing field applications such as existing self-healing capability research.
Background technology
For the anti-seepage member of hydraulic structure, always worry to cause to damage by internal reaction or external action, make material
Material characteristic changes or produced crack.Crack causes anti-seepage member leak, or even gradually triggers the collapse of whole building thing.Coagulation
The main reason for soil structure fails is the extension of microcrack, is slowed down well so carrying out reparation can to vee crack in time
Failure.But not only delay best repair time, and labor intensive financial resources according to artificial recovery technique.If concrete energy
To be made a response at once after crack is produced self-heal, then the economy and validity of structure repair will greatly improve, and
Self-healing refers to that itself crack can be repaired automatically when concrete structure ftractures.
Research and substantial amounts of concrete works from modern science on concrete work facts have proved, the crack of concrete
It is inevitable.Experience have shown that, some distress in concrete energy self-healings being exposed in water environment, water passes through crack simultaneously
Infiltration even disappears as the increase of structures usage time gradually weakens.This phenomenon is generally existing in concrete structure
's.The self-healing of distress in concrete is characterized by the calcium carbonate crystal for having white at crack, this concrete " crack self-healing "
Characteristic contains the physics and chemical process of complexity.
Because underwater concrete is chronically in water or in the environment of alternation of wetting and drying, the repairing to underwater concrete cracks
Add many difficulties.Generally, it should avoid mending concrete crack under water as far as possible.But due to structure physical property
The needs that can or use, the strong concrete stake of the dam with joint working and some bridges can only be repaiied under water-saturated state
Mend.
With the continuous expansion of concrete application, it splits under its natural environment caused by pouring quality is bad
Seam problem gradually causes everybody attention.In hydroelectric project, most of concrete structure is often born certain positioned under water
Water pressure, therefore a kind of necessary self-healing ability found experimental method and test concrete, so as to study concrete in difference
The self-healing capability in itself crack under effect of water pressure.
After concrete sample adds some cement-based materials, the self-healing ability after the chance water of test specimen crack can be caused to obtain
Very big raising, and for the self-healing property of experimental material, a set of experimental provision is generally required, test distress in concrete is in water
Because chemical reaction causes the situation that crack blocked under effect.Do not found in international literature at present and coagulate native self-healing property with coagulation
The related standard having been approved by or experimental method can be tested, the experimental method of current research autogenous healing performance is also relatively more mixed
Disorderly, carried out mostly on the experimental provision of designed, designed.
Current existing experimental method, it is the most famous with following two.First, H. Sa Kejia test bituminous concretes crack
Self-healing feature use method, the concrete cube test specimen already provided with crack is placed in a special punching block by it,
It is horizontally oriented crack.Fine sand (0~2mm) is filled between test specimen and steel wall as supporting, fine sand immersion and indwelling 2h.So
Afterwards, the cube specimen is imposed into constant dead load (in water) in a press, forces and occur under certain dam depth
Crack self-healing, power is cleaved to examine its self-healing performance before and after its self-healing finally by analyzing, [H. Sa Ke add in rooms ginseng by document
Simulate self-healing feature [J] the water conservancy and hydropower bulletins in bituminous concrete crack, 2004,25 (2)：28–30].Second, Hohai University
The round pie test specimen side silicone rubber seal of different fracture widths is bonded at length with epoxy resin and is about by Fang Yonghao etc.
30mm, on a diameter of 90mm plastic tube, plastic tube is then pasted onto on 100mm × 100mm plastic plate with epoxy resin, test specimen
Top plastic plate sets a water inlet and one to discharge water screw, and water inlet is connected to the water storage for being positioned over different height via plastic tube
Groove, the tap opened above aqua storage tank then ensure that it is in full water state all the time, eventually through being passed through in cooling water of units of measurement time
The water in crack studies its self-healing performance, and [Fang Yonghao, An Pubin, Zhao Wei, Cen Yi chat about base materials containing crack cement by document for ginseng
Infiltration corrosion and its self-healing [J] silicate journals of material, 2008,36 (4):451-456].
The existing measuring technology of comprehensive analysis is found, has no the experimental provision of shaping, and experimentation complex operation at present,
The self-healing experiment of multiple test specimens can not be carried out simultaneously, and applies hydraulic pressure to carry out from top to bottom, can only often be carried out same
The self-healing property test of the concrete sample of kind shape.
The content of the invention
The purpose of the present invention is for weak point present in above-mentioned existing background technology, there is provided one kind is mixed for testing
The experimental provision system of solidifying soil cracking seam self-healing ability, can study its healing ability from multi-angle, and experimental implementation is more convenient.
The technical solution adopted for the present invention to solve the technical problems is：For testing the reality of distress in concrete self-healing ability
Experiment device system, including water tank A and test specimen sealing device A；Water tank A is installed on tank bracket A by vertical lifting device A；
It is bonded between test specimen sealing device A each panel by cementing material, forms a containment housing；Test specimen sealing device
A is installed on test specimen test platform；Vertically arranged water inlet cylinder is fixedly connected with the middle part of test specimen sealing device A bottom plate, is entered
The top of water drum body is set relative to test specimen sealing device A bottom plate projection；The bottom of water inlet cylinder has waterpipe jointing a；Examination
Waterpipe jointing b is provided with the top of part sealing device A；Water tank A delivery port is connected with outlet pipe A, and valve is provided with outlet pipe A
Door, outlet pipe A water side is connected to waterpipe jointing a or waterpipe jointing b；Test specimen sealing device A outer surface is provided with transparent
The observation window that material is formed.
It is further：Test specimen sealing device A surrounding side panel and top plate is made using transparent material.
It is further：Test specimen sealing device A horizontal direction section is rectangle.
It is further：Top-support is provided with above test specimen sealing device A, threaded connection is provided with top-support
Screw rod, the tail end of screw rod are set straight down, and screw rod is used for the top plate for abutting test specimen sealing device A.
It is further：Also include water tank B, water tank B is installed on tank bracket B by vertical lifting device B；Water tank B
Delivery port be connected with outlet pipe B, be provided with valve on outlet pipe B；Test specimen sealing device A quantity is multiple, and causes it
Middle a part of test specimen sealing device A waterpipe jointing a connection outlet pipes A, another part test specimen sealing device A waterpipe jointing b
Outlet pipe B is connected, or causes a portion test specimen sealing device A waterpipe jointing a connection outlet pipes B, another part examination
Part sealing device A waterpipe jointing b connection outlet pipes A.
It is further：Also include water tank B and test specimen sealing device B；Water tank B is installed on water by vertical lifting device B
On box bracket B；Test specimen sealing device B is installed on test specimen test platform；Test specimen sealing device B includes being used for closed concrete examination
The top tank of part upper surface and the bottom tank for closed concrete test specimen lower surface；Top tank it is opening down,
Top is provided with waterpipe jointing c；Opening up, the bottom of bottom tank are provided with waterpipe jointing d；Water tank B delivery port connection
There is outlet pipe B, valve, outlet pipe B water side connecting water pipe interface c or waterpipe jointing d are provided with outlet pipe B；Test specimen is close
Seal apparatus B outer surface is provided with the observation window of transparent material formation.
It is further：Top tank is integrally made using transparent material, and the surrounding side panel of bottom tank is using saturating
Bright material makes.
It is further：Top-support is provided with above test specimen sealing device B, threaded connection is provided with top-support
Screw rod, the tail end of screw rod are set straight down, and screw rod is used for the top plate for abutting test specimen sealing device B.
It is further：Also include concrete sample, mounting structure of the concrete sample in test specimen sealing device A is：
The top end face of the bottom surface of concrete sample and water inlet cylinder is closed by cementing material to be connected, the surrounding and test specimen of concrete sample
Sealing device A inwall is closed by cementing material and connected, and the crack of concrete sample is vertically arranged；
Mounting structure of the concrete sample in test specimen sealing device B be：The bottom surface of concrete sample and bottom tank
Top end face is closed by cementing material and connected, and the bottom face of the top surface and top tank of concrete sample is closed by cementing material
Connection, the crack of concrete sample are vertically arranged.
The beneficial effects of the invention are as follows：Tank height can adjust, and then can flexible modulation experiment hydraulic pressure force value；It can enter simultaneously
The Healing Experiments of the multigroup test specimen of row；Applying hydraulic pressure can be carried out from top to bottom, can also be carried out from below to up；The shape of concrete sample
It is unlimited, it is square or cylindrical；By the observation window of transparent material formation, crack closure situation can be complete in experimentation
Journey is kept track of.In summary, the present invention can be from the crack self-healing ability of multi-angle research concrete sample, and structure is simple
It is single, it is easy to operate.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is test specimen sealing device A structural representation one；
Fig. 3 is test specimen sealing device A structural representation two；
Fig. 4 is test specimen sealing device B structural representation；
In figure mark for：1- water tank A, 2- tank bracket A, 3- vertical lifting device A, 4- test specimen sealing device A, 5- test specimens
Test platform, 6- water inlet cylinder, 7- top-supports, 8- screw rods, 9- water tank B, 10- vertical lifting device B, 11- tank brackets B,
12- test specimen sealing device B, 13- tops tank, 14- bottoms tank, 15- concrete samples, 16- waterpipe jointing a, 17- water pipes connect
Mouth b, 18- waterpipe jointing c, 19- waterpipe jointing d.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the invention will be further described.
As shown in Figures 1 to 4, the present invention includes water tank A1 and test specimen sealing device A4；Water tank A1 is filled by vertical lifting
A3 is put to be installed on tank bracket A2；It is bonded, is formed by cementing material between test specimen sealing device A4 each panel
One containment housing；Test specimen sealing device A4 is installed on test specimen test platform 5；It is fixed in the middle part of test specimen sealing device A4 bottom plate
Vertically arranged water inlet cylinder 6 is connected with, the top for cylinder 6 of intaking is set relative to test specimen sealing device A4 bottom plate projection；
The bottom of water inlet cylinder 6 has waterpipe jointing a16；Waterpipe jointing b17 is provided with the top of test specimen sealing device A4；Water tank A1's
Delivery port is connected with outlet pipe A, and valve is provided with outlet pipe A, and outlet pipe A water side is connected to waterpipe jointing a16 or water
Interface tube b17；Test specimen sealing device A4 outer surface is provided with the observation window of transparent material formation.In addition, can be as needed
Discharge pipe line is arranged, control valve is may also set up on discharge pipe line.
Wherein vertical lifting device A3 is used for regulating tank A1 height, preferably uses the side of lift in the present invention
Formula, water tank A1 is fixed on the bottom plate of lift during implementation.
Tank bracket A2 and test specimen test platform 5 can be made using steel construction.Outlet pipe A is in test specimen sealing device
A4 this one end can use stereoplasm tube, and because water tank A1 will carry out lift adjustment, thus outlet pipe A connection water tanks A1 one end should
Using flexible pipe.
Fracture closure situation is observed comprehensively in experimentation for convenience, test specimen sealing device A4 surrounding side
Plate and top plate are made using transparent material, and lucite can be selected in the transparent material.
Mounting structure of the concrete sample 15 in test specimen sealing device A4 be：The bottom surface of concrete sample 15 and flooding tube
The top end face of body 6 is closed by cementing material and connected, and the surrounding and test specimen sealing device A4 inwall of concrete sample 15 pass through
Cementing material closing connection, the crack of concrete sample 15 are vertically arranged.Because concrete sample 15 will be with test specimen sealing device
A4 inwalls are bonded, thus test specimen sealing device A4 needs in-site installation, can be bonded by cementing materials such as epoxy resin.This
Outside, test specimen sealing device A4 bottom plate can be separately provided, and can also be borrowed test specimen test platform 5 and be used as its bottom plate, two kinds of structures point
Not as shown in Figures 2 and 3.
Being bonded between the surrounding and test specimen sealing device A4 for convenience of concrete sample 15, test specimen sealing device A4 water
Square to section be rectangle.Concrete sample 15 is preferably square, correspondingly, test specimen sealing device A4 horizontal direction section
For square.
Top-support 7 is provided with above test specimen sealing device A4, the screw rod 8 of threaded connection, spiral shell are provided with top-support 7
The tail end of bar 8 is set straight down, and screw rod 8 is used for the top plate for abutting test specimen sealing device A4.Top-support 7 can use steel knot
Structure, screw rod 8 are connected on test specimen sealing device A4 top plate, play fixation, especially when application hydraulic pressure is carried out from below to up
When, test specimen sealing device A4 Stability Analysis of Structures can be also kept well.Top-support 7 is simultaneously available for the water-intake pipe at the top of arrangement
Road.
In the present invention, test specimen sealing device A4 is settable one, may also set up multiple；It is preferably arranged to multiple, enters simultaneously
The experiment of the multiple concrete samples of row.Now outlet pipe A can use the structure of a main pipe manifold.
For convenience of carrying out applying the experiment of hydraulic pressure from below to up and from top to down simultaneously, present invention additionally comprises water tank B9, water
Case B9 is installed on tank bracket B11 by vertical lifting device B10；Water tank B9 delivery port is connected with outlet pipe B, outlet pipe
Valve is provided with B；Test specimen sealing device A4 quantity is water pipes that are multiple, and causing a portion test specimen sealing device A4
Interface a16 connection outlet pipes A, another part test specimen sealing device A4 waterpipe jointing b17 connection outlet pipe B, or cause it
Middle a part of test specimen sealing device A4 waterpipe jointing a16 connection outlet pipes B, another part test specimen sealing device A4 water pipe connects
Mouth b17 connection outlet pipes A.Outlet pipe B can use stereoplasm tube in test specimen sealing device B12 this one end, because water tank B9 will enter
Row lift adjustment, thus outlet pipe B connection water tanks B9 one end should use flexible pipe.
The situation carried out simultaneously for multigroup experiment, the present invention also provides another test specimen sealing device B12, with test specimen
Sealing device A4 is combined application, now also includes water tank B9, and concrete structure is：Water tank B9 passes through vertical lifting device B10
It is installed on tank bracket B11；Test specimen sealing device B12 is installed on test specimen test platform 5；Test specimen sealing device B12 includes
Bottom tank 14 for the top tank 13 of closed concrete test specimen upper surface and for closed concrete test specimen lower surface；
Opening down, the top of top tank 13 are provided with waterpipe jointing c18；Opening up, the bottom of bottom tank 14 are provided with water
Interface tube d19；Water tank B9 delivery port is connected with outlet pipe B, and valve, outlet pipe B water side connection are provided with outlet pipe B
Waterpipe jointing c18 or waterpipe jointing d19；Test specimen sealing device B12 outer surface is provided with the observation window of transparent material formation.
Such a structure, test specimen sealing device B12 and test specimen sealing device A4 can also set multiple respectively, and outlet pipe A and outlet pipe B are adopted
With the structure of a main pipe manifold, in outlet pipe A and outlet pipe B, one apply from below to up hydraulic pressure, another from top to down
Apply hydraulic pressure.
Similarly, observed comprehensively for convenience of fracture closure situation in experimentation, top tank 13 is overall using saturating
Bright material is made, and the surrounding side panel of bottom tank 14 is made using transparent material, and organic glass also can be selected in the transparent material
Glass.Because overall structure can be respectively adopted in top tank 13 and bottom tank 14, live splicing, thus the He of top tank 13 are not required to
Bottom tank 14 integrally can be made using transparent organic glass.
To improve structural stability, top-support 7 is provided with above test specimen sealing device B12, is provided with top-support 7
The screw rod 8 of threaded connection, the tail end of screw rod 8 are set straight down, and screw rod 8 is used for the top plate for abutting test specimen sealing device B12.
Mounting structure of the concrete sample 15 in test specimen sealing device B12 be：The bottom surface and bottom of concrete sample 15
The top end face of tank 14 is closed by cementing material and connected, and the bottom face of the top surface and top tank 13 of concrete sample 15 passes through
Cementing material closing connection, the crack of concrete sample 15 are vertically arranged.For test specimen sealing device B12, concrete sample 15
It is preferred that use square-form test sample or cylinder specimen.Test specimen sealing device B12 can by the cementing materials such as epoxy resin with
Concrete sample 15 is bonded.It is adapted with the shape specification of concrete sample 15, top tank 13, bottom tank 14 are adopted
With columnar structured, or use square slot structure.
Preferred embodiment：
The present invention includes water tank A1, water tank B9, test specimen sealing device A4, test specimen sealing device B12；Water tank A1 passes through vertical
Lowering or hoisting gear A3 is installed on tank bracket A2；Water tank B9 is installed on tank bracket B11 by vertical lifting device B10；Examination
Part sealing device A4, test specimen sealing device B12 set 3 respectively, are installed on test specimen test platform 5.
It is bonded between test specimen sealing device A4 each panel by cementing material, forms a containment housing；Examination
Vertically arranged water inlet cylinder 6 is fixedly connected with the middle part of part sealing device A4 bottom plate, the top for cylinder 6 of intaking is relative to test specimen
Sealing device A4 bottom plate is raised to be set；The bottom of water inlet cylinder 6 has waterpipe jointing a16；Test specimen sealing device A4 top
It is provided with waterpipe jointing b17；Water tank A1 delivery port is connected with outlet pipe A, and valve is provided with outlet pipe A, and outlet pipe A's goes out
Water end (W.E.) is connected to waterpipe jointing a16.
Test specimen sealing device B12 is included for the top tank 13 of closed concrete test specimen upper surface and mixed for closing
Coagulate the bottom tank 14 of native test specimen lower surface；Opening down, the top of top tank 13 are provided with waterpipe jointing c18；Bottom water
Opening up, the bottom of groove 14 are provided with waterpipe jointing d19；Water tank B9 delivery port is connected with outlet pipe B, is set on outlet pipe B
It is equipped with valve, outlet pipe B water side connecting water pipe interface c18.
Test specimen sealing device A4, test specimen sealing device B12 are integrally made using transparent organic glass；Vertical lifting device
A3 and vertical lifting device B10 use lift.
Top-support 7 is provided with above test specimen sealing device A4, the screw rod 8 of threaded connection, spiral shell are provided with top-support 7
The tail end of bar 8 is set straight down, and screw rod 8 is used for the top plate for abutting test specimen sealing device A4.
Test specimen sealing device A4 horizontal direction section is square.Test specimen sealing device B12 top tank 13, bottom
Tank 14 is using columnar structured.
Concrete sample 15 includes two kinds：The length of side is 150mm square-form test sample 3, a diameter of 100mm, is highly
50mm cylinder specimen 3.Square-form test sample carries out applying hydraulic pressure from below to up by water tank A1 and test specimen sealing device A4
Experiment, cylinder specimen carries out applying hydraulic pressure experiment from top to down by water tank B9 and test specimen sealing device B12.
Experimentation is as follows：The concrete sample 15 of corresponding size is selected first, afterwards by the coagulation already provided with crack
Native test specimen is put into corresponding test specimen sealing device A4 and test specimen sealing device B12, afterwards using cementing materials such as epoxy resin
Concrete sample 15 is installed into fixation.Then regulating tank A1 and water tank B9 is distinguished to specified elevation using lift, afterwards not
Disconnected water-filling guaranteed water level remains constant, and now water body contacts respectively along outlet pipe A, outlet pipe B with concrete sample 15, self-healing
Process takes place.
Finally, the height of the invention by regulating tank A1 and water tank B9, to change the hydraulic pressure that concrete sample 15 is born
Power, so as to realize in the case of certain water pressure, the self-healing ability test experiments of concrete.Experiment can carry out two every time
Group, every group of three test specimens, square-form test sample can be carried out simultaneously with cylinder specimen, and two sets of hydraulic pressure systems are not done mutually independently
Disturb, so as to realize the real reliability of experiment.At the end of experiment, the closure degree of artificial seam is measured, and before combination self-healing experiment
Afterwards at crack concrete fragment SEM image, overall merit experiment effect.
Claims (10)
1. the experimental provision system for testing distress in concrete self-healing ability, it is characterised in that：Including water tank A (1) and test specimen
Sealing device A (4)；Water tank A (1) is installed on tank bracket A (2) by vertical lifting device A (3)；Test specimen sealing device A
(4) it is bonded between each panel by cementing material, forms a containment housing；Test specimen sealing device A (4) is installed on
On test specimen test platform (5)；Vertically arranged water inlet cylinder (6) is fixedly connected with the middle part of test specimen sealing device A (4) bottom plate,
The top of water inlet cylinder (6) is set relative to test specimen sealing device A (4) bottom plate projection；The bottom of water inlet cylinder (6) has water
Interface tube a (16)；Waterpipe jointing b (17) is provided with the top of test specimen sealing device A (4)；Water tank A (1) delivery port is connected with
Valve is provided with outlet pipe A, outlet pipe A, outlet pipe A water side is connected to waterpipe jointing a (16) or waterpipe jointing b
(17)；Test specimen sealing device A (4) outer surface is provided with the observation window of transparent material formation.
2. the experimental provision system as claimed in claim 1 for being used to test distress in concrete self-healing ability, it is characterised in that：Examination
Part sealing device A (4) surrounding side panel and top plate is made using transparent material.
3. the experimental provision system as claimed in claim 1 for being used to test distress in concrete self-healing ability, it is characterised in that：Examination
Part sealing device A (4) horizontal direction section is rectangle.
4. the experimental provision system as claimed in claim 1 for being used to test distress in concrete self-healing ability, it is characterised in that：Examination
Top-support (7) is provided with above part sealing device A (4), the screw rod (8) of threaded connection, screw rod are provided with top-support (7)
(8) tail end is set straight down, and screw rod (8) is used for the top plate for abutting test specimen sealing device A (4).
5. the experimental provision system for being used to test distress in concrete self-healing ability as described in any one in Claims 1-4,
It is characterized in that：Also include water tank B (9), water tank B (9) is installed on tank bracket B (11) by vertical lifting device B (10)；
Water tank B (9) delivery port is connected with outlet pipe B, and valve is provided with outlet pipe B；Test specimen sealing device A (4) quantity to be multiple,
And cause a portion test specimen sealing device A (4) waterpipe jointing a (16) connection outlet pipes A, the sealing of another part test specimen
Device A (4) waterpipe jointing b (17) connection outlet pipe B, or a portion test specimen sealing device A (4) water pipe is connect
Mouth a (16) connection outlet pipes B, another part test specimen sealing device A (4) waterpipe jointing b (17) connection outlet pipes A.
6. the experimental provision system for being used to test distress in concrete self-healing ability as described in any one in Claims 1-4,
It is characterized in that：Also include water tank B (9) and test specimen sealing device B (12)；Water tank B (9) is pacified by vertical lifting device B (10)
Loaded on tank bracket B (11)；Test specimen sealing device B (12) is installed on test specimen test platform (5)；Test specimen sealing device B
(12) include for the top tank (13) of closed concrete test specimen upper surface and for closed concrete test specimen lower surface
Bottom tank (14)；Opening down, the top of top tank (13) are provided with waterpipe jointing c (18)；Bottom tank (14) are opened
Mouthful upward, bottom is provided with waterpipe jointing d (19)；Water tank B (9) delivery port is connected with outlet pipe B, is provided with outlet pipe B
Valve, outlet pipe B water side connecting water pipe interface c (18) or waterpipe jointing d (19)；Test specimen sealing device B (12) appearance
Face is provided with the observation window of transparent material formation.
7. the experimental provision system as claimed in claim 6 for being used to test distress in concrete self-healing ability, it is characterised in that：On
Portion's tank (13) is integrally made using transparent material, and the surrounding side panel of bottom tank (14) is made using transparent material.
8. the experimental provision system as claimed in claim 6 for being used to test distress in concrete self-healing ability, it is characterised in that：Examination
Top-support (7) is provided with above part sealing device B (12), the screw rod (8) of threaded connection, spiral shell are provided with top-support (7)
The tail end of bar (8) is set straight down, and screw rod (8) is used for the top plate for abutting test specimen sealing device B (12).
9. the experimental provision system for being used to test distress in concrete self-healing ability as described in any one in Claims 1-4,
It is characterized in that：Also include concrete sample (15), concrete sample (15) is installed in test specimen sealing device A (4), concrete
The top end face of the bottom surface of test specimen (15) and water inlet cylinder (6) is closed by cementing material to be connected, the surrounding of concrete sample (15)
Closed and connected by cementing material with test specimen sealing device A (4) inwall, the crack of concrete sample (15) is vertically arranged.
10. the experimental provision system as claimed in claim 6 for being used to test distress in concrete self-healing ability, it is characterised in that：
Also include concrete sample (15), mounting structure of the concrete sample (15) in test specimen sealing device A (4) is：Concrete tries
The top end face of the bottom surface of part (15) and water inlet cylinder (6) is closed by cementing material to be connected, the surrounding of concrete sample (15) with
Test specimen sealing device A (4) inwall is closed by cementing material and connected, and the crack of concrete sample (15) is vertically arranged；
Mounting structure of the concrete sample (15) in test specimen sealing device B (12) be：The bottom surface of concrete sample (15) is with
The top end face of portion's tank (14) is closed by cementing material and connected, the top surface of concrete sample (15) and the bottom of top tank (13)
Closed and connected by cementing material in end face；The crack of concrete sample (15) is vertically arranged.
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| CN201710778177.8A CN107389906A (en) | 2017-09-01 | 2017-09-01 | For testing the experimental provision system of distress in concrete self-healing ability |
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Application publication date: 20171124 |