CN207832628U - A kind of concrete impermeability test device - Google Patents
A kind of concrete impermeability test device Download PDFInfo
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- CN207832628U CN207832628U CN201721442495.9U CN201721442495U CN207832628U CN 207832628 U CN207832628 U CN 207832628U CN 201721442495 U CN201721442495 U CN 201721442495U CN 207832628 U CN207832628 U CN 207832628U
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Abstract
The utility model belongs to testing equipment field, is related to a kind of concrete impermeability test device, including ball-type concrete sample and pre-buried pressure guiding pipe, and pre-buried pressure guiding pipe one end is integrally connected by pouring with concrete sample, and the other end is connect with water pipe.Utility model utilizes the special geometrical feature of sphere test specimen, under the premise of meeting corresponding specification, so that test specimen quality is mitigated 30% weight, 35kg is relieved to by 50.87kg；Reach that demoulding is simple, light weight simultaneously, easy carrying, material saving, convenient for the effect of comprehensive observation seepage point, to improve the effect and economic benefit of experiment.
Description
Technical field
The utility model belongs to testing equipment field, and in particular to a kind of ball-type concrete impermeability test device.
Background technology
Water-tight concrete is widely used in waterwork, underwater, water, underground and other architectural engineerings for having seepage resistance demand.
The structure and working principle of existing concrete Anti-leakage instrument：
The existing concrete impervious instrument of MTSH-8.0 types is to communicate therewith the pipe-line system of connection everywhere using sealing container
Pressure principle (head carelessness is disregarded), is pressed, and keep pressure within the limits prescribed by intelligent numerical control meter with water pump
Come the detection device tested.Mainly it is made of rack die trial, separator, water pump, water tank and electrical control gear.
Rack die trial:Rack spreads the steel plate pallet of 1.5mm thickness, the bolt of M10 will above made of shaped steel welding
Die trial receptacle disk is fixed on the rack, and using six die trials, is connected by the bolt of M12 between die trial and die trial, intermediate
" O " shape rubber ring seals, and specimen enclosure is used in combination special allen wrench to fasten among die trial.
Separator：Separator is that valve and a backwater valve concentration are placed in before instrument, mainly controls six
The logical or cut-off in sample water route, backwater valve is depressurizing.
Water pump：Water pump, by the two poles of the earth gear shift, drives eccentric shaft rotation, then leads to again using 90W motor as power source
It crosses guide post and connecting rod drives plunger is reciprocating to work.Due to the flow very little of water pump, can approximatively think to supply
Hydraulic pressure to sample is static state.
Water tank：Water tank is the container of water storage, and plays the percussion that slows down of pressure water, will by water filling nozzle before detection
Water injects in water tank, and after experiment, water in tank is drained by the nozzle that discharges water.
Electrical control instrument：For controlling water pump pressurization.
Concrete impermeability test device disclosed in Chinese utility model patent CN201620299957.5, including mixed mud examination
Sample and pre-buried pressure guiding pipe, pre-buried pressure guiding pipe one end are connect by pouring connected mixed mud sample core, the other end with water pipe.By water
Pressure water is passed through in pipe, pressure water is entered in mixed mud sample by pre-buried pressure guiding pipe, tested.Above-mentioned patent solves mixed
Seal difficult problem between concrete sample and rack die trial when solidifying soil impermeability test, improve impermeability test success rate and
Practicability of the impermeability test instrument in engineering.But there are still following points for it：
1, concrete sample volume, weight mean to consume more materials greatly, and experimentation cost is high.MTSH-8.0 cylinders
Anti-leakage instrument is seeped water using enlarged footing from middle part, can not ensure that creepage distance is 150mm, and maximum distance is even up to
212.13mm causes the hydraulic pressure value measured not accurate enough.Cylinder test specimen is placed on the table simultaneously, and lower surface is hidden
Gear, if test specimen can not be observed from following table sweat.
2, concrete sample weight is larger, reaches 50.87kg, and test specimen is placed into together with rack die trial on Anti-leakage instrument table top
When have larger difficulty.Because of cylinder features of shape itself, it is not easy to find suitable stress point, by between hand and rack die trial
Frictional force generally requires 3 people while carrying, reduces test efficiency；There is also security risks to a certain extent；For volume
Bigger concrete test block, demoulding difficulty are larger.
Invention content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of ball-type concrete impermeability test device.
In order to achieve the above object, the utility model uses following technical proposal：
A kind of concrete impermeability test device, including ball-type concrete sample and pre-buried pressure guiding pipe, pre-buried pressure guiding pipe one end
It is integrally connected with concrete sample by pouring, the other end is connect with water pipe.
The utility model utilizes the special geometrical feature of sphere test specimen, under the premise of meeting corresponding specification, significantly mitigates
Test specimen weight reaches and demoulds simple, light weight, easily carries, the effect of material saving.Meanwhile compared to cylinder, sphere can be
Whole surface observes experimental phenomena, is more conducive to the accuracy of test result in this way.
Preferably, above-mentioned concrete impermeability test device further includes the workbench for placing concrete sample, the coagulation
Soil sample both sides are equipped with intelligent alarm temperature measurer, and intelligent alarm temperature measurer is fixed on workbench top, and concrete sample surface is set
There is quick lime layer.
In experiment, the water infiltrated from concrete sample is contacted with quick lime layer, the produced measured instrument detection of heat
It arrives, and testing crew concrete sample experiment is prompted to complete, record hydraulic pressure.Testing crew is set to be not necessarily in real time to concrete sample
It is observed.
Further preferably, described pre-buried pressure guiding pipe one end is fixed on the core of concrete sample.Ensure that creepage distance is uniform,
Test result is accurate.
Still more preferably, it is additionally provided with catch basin between the workbench and concrete sample.Catch basin is tried for collecting
The water come out from concrete sample infiltration of ambient when testing can keep workbench cleaning, clean and tidy and raising safety.
Still more preferably, after the pre-buried pressure guiding pipe exit sequentially passes through downwards corresponding catch basin and workbench,
Exit top is connected by fastener and workbench, and exit lower part connects water pipe.Exit not only passes through direct and water pipe
It is connected and enters the channel of concrete sample core as pressure water, and the preformed hole of work top can be passed through, concrete is tried
Sample is connected with workbench, so that concrete sample is fixed on the operation on testing machine and is more succinctly more convenient, and concrete sample
It is fixed not have to rack die trial shell, the cost of test apparatus is reduced, experimentation cost has been saved.
Still more preferably, the pre-buried pressure guiding pipe be cast in the end face in concrete sample be provided with it is pre- it is pouring with it is mixed
Mortar confining bed of the solidifying soil sample with proportioning.
Still more preferably, it is in funnel-form that the pre-buried pressure guiding pipe, which is cast in one end in concrete sample, and funnel is open
Upper surface is provided with the pre- mortar confining bed pouring with concrete sample with proportioning.
The above-mentioned preferable structure of mortar confining bed is mixing confining bed, i.e., funnel opening upper surface is first provided with one layer of gold
Belong to net, pours the mortar diaphragm with proportioning with concrete sample on metal mesh in advance.Funnel opening can utmostly ensure pressure
Water can uniformly be spread after entering concrete sample core in concrete sample, ensure pressure water energy uniformly penetrating sample.
Still more preferably, the mortar confining bed replaces with mixing confining bed, including the setting of funnel opening upper surface
Metal mesh and the mortar diaphragm with the same proportioning of concrete sample on metal mesh top.
Using confining bed structure, can be poured to avoid when pre-buried pressure guiding pipe is fixed with one by pouring with concrete sample
The concrete water mud built is entered by the embedment end (such as funnel is open) of pre-buried pressure guiding pipe in pre-buried pressure guiding pipe, and obstruction endoporus is logical
Road.Increase metal mesh mould, pre-buried impulse can be entered to avoid the concrete when pouring concrete mortar confining bed in advance, poured in advance
In pipe, pre-buried impulse pipe orifice is blocked.
The utility model has the following advantages：
The utility model makes test specimen matter using the special geometrical feature of sphere test specimen under the premise of meeting corresponding specification
Amount mitigates 30% weight, and 35kg is relieved to by 50.87kg；Reach that demoulding is simple, light weight simultaneously, easy carrying, material saving, just
In the effect of comprehensive observation seepage point, to improve the effect and economic benefit of experiment.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment 1.
Fig. 2 is the structural schematic diagram that concrete sample uses that spherical die pours in Fig. 1.
Fig. 3 is the structural schematic diagram of combined cavity in Fig. 2.
Fig. 4 is the upward view of Fig. 3.
Fig. 5 is the structural schematic diagram of embodiment 2.
Reference numeral：1 concrete sample, 2 pre-buried pressure guiding pipes, 3 fasteners, 4 catch basins, 5 workbench, 6 first intelligence reports
Alert temperature measurer, 7 second intelligent alarm temperature measurers, 8 quick lime layers, 9 combined cavities, 10 cavity seats.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Embodiment 1：A kind of concrete impermeability test device as shown in Figure 1, including it is concrete sample 1 spherical in shape, pre-
Bury pressure guiding pipe 2, fastener 3, catch basin 4, workbench 5.Concrete sample 1 is installed on the top of workbench 5, concrete sample 1 with
Catch basin 4 is equipped between workbench 5.2 upper end of pre-buried pressure guiding pipe is fixed on the core of concrete sample 1 by pouring；It is pre-buried to draw
2 lower end of pressure pipe is drawn from 1 lower part of concrete style, connects water pipe after sequentially passing through catch basin 4 and workbench 5, and pass through fastening
Part 3 is connected with workbench 5, so that concrete sample 1 is fixed on workbench 5, can not move.To ensure concrete in casting process
Pressure water energy uniformly penetrating sample during 2 tube wall of pre-buried pressure guiding pipe, experiment will not be blocked, pre-buried pressure guiding pipe 2 uses following three
The design of kind scheme：
1, the end face that pre-buried pressure guiding pipe 2 is cast in concrete sample 1 be provided with it is pre- it is pouring with concrete sample 1 with matching
The mortar confining bed of ratio.
2, it is in funnel-form that pre-buried pressure guiding pipe 2, which is cast in one end in concrete sample 1, and funnel opening upper surface is provided with pre-
The mortar confining bed with concrete sample 1 with proportioning poured.
3, it is in funnel-form, the gold of funnel opening upper surface setting that pre-buried pressure guiding pipe 2, which is cast in one end in concrete sample 1,
Belong to net and the mortar diaphragm with concrete sample 1 with proportioning on metal mesh top.
The following detailed description of the preparation method and testing inspection step of above-mentioned concrete impermeability test device.
1, prepare pre-buried pressure guiding pipe：
Pre-buried pressure guiding pipe overall length 155mm, one end are in funnel shaped, are made of funnel opening and straight tube pipe, open and straight
Cylinder pipe is bolted by connection or being directly welded to connect.The diameter 20mm of straight tube pipe, long 130mm, there are hole, aperture in centre
2-4mm, for guiding flow, the outer wall at straight tube pipe lower end 20mm has the polishing section of 10mm, i.e., straight tube pipe is polished
It is flat, it is adjusted convenient for the embedding clamping fixed or rotation of spanner.Funnel opening height 20mm is open as 40mm, is conducive to expand permeable face
Product, shape can be taper or cylinder or rectangular.When preparing concrete sample in order to prevent, the concrete slurry poured is leak into
Pre-buried impulse pipe orifice is blocked in bucket is open, one layer of metal mesh is covered in funnel opening, then above with experiment with proportioning
Concrete pour the mortar diaphragm of one layer of 10mm in advance, opening is closed after solidification.
2, prepare spherical module：
Spherical die as shown in Figure 2 is the mold that concrete sample pours, mainly by 10 groups of combined cavity 9 and cavity seat
At.9 internal diameter of combined cavity is that 300mm is designed to spherical combined cavity, is made of three parts for the ease of demoulding, such as Fig. 3-4
It is shown.For the ease of casting concrete, opening, opening width 80mm are equipped at 9 top of combined cavity.In order to fix pre-buried draw
The stainless steel tube that a root long degree is 90mm is arranged in 9 top open part of combined cavity in pressure pipe 2.Spiral shell is drilled among stainless steel tube
Keyhole is easily installed pre-buried pressure guiding pipe 2；It is drilled with bolt hole in stainless steel tube both sides, stainless steel tube is fixed on combined cavity 9
On.
3, the pre-buried pressure guiding pipe 2 prepared is inserted in combined cavity 9 as shown in Figure 2.The straight tube of pre-buried pressure guiding pipe 2 is justified
Pipe is pierced by from the interstitial hole of the steel disc of finishing die upper end, and pre-buried depth is 150mm, is fixed with bolt.Keep pre-buried pressure guiding pipe pre-
Nuzzle concrete when position it is accurate, and will not be moved when pouring.
4, it by the concreting of experiment at combined cavity 9, is then placed in standard curing pond and conserves 28 days, take off
Mould.Pre-buried pressure guiding pipe 2 is integrally formed with experiment with concrete, and concrete sample is made.Three mixed muds are obtained by above step
Test specimen.
5,3 concrete samples 1 are upside down on the workbench 5 for being placed with catch basin 4, the exit of 3 pre-buried pressure guiding pipes 2
Catch basin 4 and workbench 5 are sequentially passed through downwards, concrete sample 1 and workbench 5 are respectively fixedly connected by fastener 3 for exit,
And it is separately connected water pipe.
6, the valve of 3 water pipes is opened, pressure water is entered by pre-buried pressure guiding pipe in 3 concrete samples respectively.
7, it is finished by the experiment in 24 hours of new specification, such as：The pressurization of engine request sample 0.8MPa, lower limit set 0.6MPa
Lower limit automatic boosting is 0.7MPa, then constant pressure 8 hours after constant pressure 8 hours, and lower limit automatic boosting is 0.8MPa, is finished after 8 hours.
8, during the test, it observes around concrete sample, when there are two concrete samples to have pressure water penetration to go out
When coming, hydraulic pressure at this time is write down, the pressure value as tested.
Embodiment 2：A kind of concrete impermeability test device as shown in Figure 5 increases the first intelligence on the basis of implementing 1
Can alarm temperature measurer 6, the second intelligent alarm temperature measurer 7, and be equipped with quick lime layer 8 on the surface of concrete sample 1.First intelligence
Temperature measurer 6, the second intelligent alarm temperature measurer 7 alarm set on the both sides of concrete sample 1, each measurement concrete sample 1 or so
The temperature change of two spherical surfaces.When the water that concrete sample 1 infiltrates is contacted with quick lime layer 8, produced heat is by intelligence
Alarm temperature measurer detects, and testing crew concrete sample experiment is prompted to complete, and records hydraulic pressure.
The preparation method and testing inspection step of above-mentioned concrete impermeability test device are the same as embodiment 1.
The utility model is not limited to specific implementation mode above-mentioned.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
It closes.
Claims (7)
1. a kind of concrete impermeability test device, including concrete sample (1) and pre-buried pressure guiding pipe (2), pre-buried pressure guiding pipe (2) one
End is integrally connected by pouring with concrete sample (1), and the other end is connect with water pipe, it is characterised in that：Further include placing coagulation
The workbench (5) of soil sample (1), concrete sample (1) both sides are equipped with intelligent alarm temperature measurer (7,8), and intelligent alarm is surveyed
Wen Yi (7,8) is fixed on workbench (5) top, and concrete sample (1) surface is equipped with quick lime layer (8), the concrete sample
(1) it is ball-type.
2. a kind of concrete impermeability test device according to claim 1, it is characterised in that：The pre-buried pressure guiding pipe (2)
One end is fixed on the core of concrete sample (1).
3. a kind of concrete impermeability test device according to claim 2, it is characterised in that：The workbench (5) with it is mixed
It is additionally provided with catch basin (4) between solidifying soil sample (1).
4. a kind of concrete impermeability test device according to claim 3, it is characterised in that：The pre-buried pressure guiding pipe (2)
After exit sequentially passes through downwards corresponding catch basin (4) and workbench (5), exit top passes through fastener (3) and work
Platform (5) is connected, and exit lower part connects water pipe.
5. a kind of concrete impermeability test device according to claim 4, it is characterised in that：The pre-buried pressure guiding pipe (2)
The end face being cast in concrete sample (1) is provided with the pre- mortar confining bed pouring with concrete sample (1) with proportioning.
6. a kind of concrete impermeability test device according to claim 5, it is characterised in that：The pre-buried pressure guiding pipe (2)
The one end being cast in concrete sample (1) is in funnel-form, and funnel opening upper surface is provided with pre- pouring and concrete sample
(1) with the mortar confining bed of proportioning.
7. a kind of concrete impermeability test device according to claim 6, it is characterised in that：The mortar confining bed is replaced
To mix confining bed, including the metal mesh of funnel opening upper surface setting and metal mesh top is same with concrete sample (1)
The mortar diaphragm of proportioning.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721442495.9U CN207832628U (en) | 2017-11-02 | 2017-11-02 | A kind of concrete impermeability test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721442495.9U CN207832628U (en) | 2017-11-02 | 2017-11-02 | A kind of concrete impermeability test device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643244A (en) * | 2017-11-02 | 2018-01-30 | 四川农业大学 | A kind of concrete impermeability test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643244A (en) * | 2017-11-02 | 2018-01-30 | 四川农业大学 | A kind of concrete impermeability test device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Renyahong, Hou Song, Chen Chunyang, Liu Chenyang, Huang Xianbin, Advanced Wei Song, Xiao Qianfeng, Han Yuting, Xu Jialin Inventor after: Xu Jialin Inventor after: Hou Song Inventor after: Chen Chunyang Inventor after: Liu Chenyang Inventor after: Huang Xianbin Inventor after: Xian Jin Inventor after: Wei Song Inventor after: Xiao Qianfeng Inventor after: Han Yuting Inventor before: Huang Xianbin Inventor before: Xu Jialin Inventor before: Hou Song Inventor before: Chen Chunyang Inventor before: Liu Chenyang Inventor before: Huang Xianbin, Hou Song, Chen Chunyang, Liu Chenyang, Wang Ren Yahong, Advanced Wei Song, Xiao Qianfeng, Han Yuting, Xu Jialin Inventor before: Xian Jin Inventor before: Wei Song Inventor before: Xiao Qianfeng Inventor before: Han Yuting |
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| CB03 | Change of inventor or designer information | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20201102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |