CN208091877U - A kind of pervious concrete pervasion test device - Google Patents
A kind of pervious concrete pervasion test device Download PDFInfo
- Publication number
- CN208091877U CN208091877U CN201820726845.2U CN201820726845U CN208091877U CN 208091877 U CN208091877 U CN 208091877U CN 201820726845 U CN201820726845 U CN 201820726845U CN 208091877 U CN208091877 U CN 208091877U
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- babinet
- water tank
- pervious concrete
- test device
- concrete
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Abstract
The utility model is related to a kind of pervious concrete pervasion test devices, sink including water tank and its top water feed apparatus and its bottom, the side wall of sink is provided with lower part gap, the water tank is made up of upper box body connected in sequence from top to bottom, middle part babinet and lower part box, the side setting internal face of upper box body is fixed with the elongate holes of sliding slot, sliding block is installed on the outside of sliding slot, top gap is provided on sliding block, sliding block bottom end is connected with sealing plate, and the sealing plate is bonded with the inner wall of water tank；Top, the bottom end of middle part babinet are respectively fixed with permeable cover board, bearing plate, concrete test block is placed between the two, inflating rubber bed course is arranged in middle part cabinet wall, seamless between inflating rubber bed course and concrete test block to be bonded, and the communication port communicated with sink is provided on the two side of lower part box；Inflating rubber bed course can mitigate influence of the side wall leakage of concrete test block to experimental data in test, and top spilling water open height is adjustable, facilitates adjusting head.
Description
Technical field
The utility model is related to civil engineering material technical field of measurement and test, especially a kind of pervious concrete penetration testing dress
It sets.
Background technology
Permeable concrete is a kind of nothing with continuous hole made of the materials such as coarse aggregate, cement, water, additive
Sand concrete, the green application value with ecological, environmental protective.Fast development with urban road and sponge city concept
The drawbacks of proposition, waterproof pavement, is more and more obvious, and each field is increasing to the demand of permeable concrete, especially in work
The application of journey construction field is more and more wider.
For pervious concrete as novel ecological concrete, water permeability is most important index, is needed to permeable coagulation
The infiltration coefficient of soil is tested, and is evaluated with the water permeability to concrete.
Concrete filtration coefficient test device spininess is for the closeer normal concrete of hole in the prior art, for infiltration
Property larger pervious concrete and be not suitable for, since pervious concrete surface is distributed a large amount of holes, hole is formed through open flows
Diameter is changed the direction of a stream of water to flow out from side wall, causes experimental data inaccurate.
Utility model content
The applicant is directed to the disadvantage in above-mentioned existing production technology, provides a kind of pervious concrete infiltration survey reasonable for structure
Trial assembly is set, and to effectively avoid the side wall of concrete test block from leaking the influence to experimental data, and test process head is adjusted
It is convenient, multi-group data can be obtained.
Technical solution used by the utility model is as follows：
A kind of pervious concrete pervasion test device, including water tank, the top of water tank is to being connected to water feed apparatus, the bottom of water tank
Portion is fixed in sink, and the one side wall of sink is provided with lower part gap, and lower part overflow pipe is installed at the lower part gap；
The water tank is made up of upper box body connected in sequence from top to bottom, middle part babinet and lower part box,
Wherein, the side of upper box body is provided with elongate holes, and the internal face of the elongate holes is fixed with sliding slot, sliding slot
Outside is equipped with the sliding block slid along, and band is provided between sliding block and sliding slot, top gap is provided in the middle part of sliding block, on
Rubber hose, the bottom end of sliding block is passed through to be connected with sealing plate in portion's gap, the sealing plate is bonded with the inner wall of water tank, described
Sealing plate follows sliding block to slide together, and not used elongate holes are sealed；
Wherein, the top of middle part babinet is fixed with permeable cover board, and bottom end is fixed with bearing plate, in permeable cover board and bearing plate
Between be placed with concrete test block, the surrounding of middle part cabinet wall is provided with inflating rubber bed course, inflating rubber bed course and coagulation
Seamless fitting between native test block；
Wherein, the lower part box is located in sink, and the communication port communicated with sink is provided on the two side of lower part box.
Its further technical solution is：
The side of the middle part babinet is equipped with constant-pressure inflating device connector, and the constant-pressure inflating device connector will be external
Constant-pressure inflating device be attached with inflating rubber bed course, constant-pressure inflating device be hydraulic servo device with manograph or
Gas boosting pumps, and the pressure limit of constant-pressure inflating device is 50-500kpa.
Scale, the mark ranging from 0-200mm of scale are provided on the sliding slot.
The wall thickness of the upper box body, middle part babinet and lower part box is 5-10mm, height respectively 550mm,
250mm and 300mm, cross section are identical square annular, inner edge a length of 150mm or 200m of square annular.
It is all made of and is bolted between the upper box body and middle part babinet, middle part babinet and lower part box；Each babinet is adopted
With transparent organic glass material.
The inflating rubber bed course is Nian Jie with the inner wall of middle part babinet.
The bearing plate is perforated steel plate.
The length of the sealing plate is 250mm, and the side that the sealing plate is bonded with tank inner wall uses rubber material, separately
Side uses rigid material.
It is provided with beaker with a scale below the lower part overflow pipe.
The beneficial effects of the utility model are as follows：
The utility model is compact-sized, reasonable, easy to operate, and top gap is fixed in the circular hole of sliding block, passes through cunning
Block moves in the sliding slot on water tank side wall, adjusts the height of top gap to adjust head, facilitates an experimentation
It is middle to obtain multigroup experimental data.
The level pressure inflating rubber bed course of the utility model is connect with external constant-pressure inflating device, with pervious concrete test block without
Gap fitting setting, and can be avoided to coagulation while being avoided that flow side leakage in test process by manograph control pressure
Native test specimen pressurization excessively causes test specimen to damage；Simultaneously by adjusting aeration quantity, various sizes of test block can be tested, be improved
The practicability of experimental provision, optimizes experimentation, improves the accuracy of experimental data.
The upper box body of the utility model water tank and middle part babinet, are blocked between middle part babinet and lower part box by bolt
It cuts, ease of assembly and dismounting, easy to carry and cleaning.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the mounting structure schematic diagram of the top gap of the utility model.
Wherein：1, water feed apparatus；2, water tank；3, sliding slot；4, sliding block；5, top gap；6, sealing plate；7, permeable lid
Plate；8, constant-pressure inflating device connector；9, concrete test block；10, bearing plate；11, inflating rubber bed course；12, sink；13, even
Port；14, lower part overflow pipe.
Specific implementation mode
Below in conjunction with the accompanying drawings, illustrate specific embodiment of the present utility model.
As depicted in figs. 1 and 2, the pervious concrete pervasion test device of the present embodiment, including water tank 2, the top of water tank 2
To being connected to water feed apparatus 1, the bottom of water tank 2 is fixed in sink 12, and the one side wall of sink 12 is provided with lower part gap, and lower part is overflow
Lower part overflow pipe 14 is installed at the mouth of a river；
The lower section of lower part overflow pipe 14 is provided with beaker with a scale；
Water tank 2 is made up of upper box body connected in sequence from top to bottom, middle part babinet and lower part box,
Wherein, the side of upper box body is provided with elongate holes, and the internal faces of elongate holes is fixed with sliding slot 3, outside sliding slot 3
Side is equipped with the sliding block 4 slid along, and band is provided between sliding block 4 and sliding slot 3, scale is provided on sliding slot 3, scale
Ranging from 0-200mm is identified, 4 middle part of sliding block is provided with top gap 5, rubber hose is passed through in top gap 5, sliding block 4
Bottom end is connected with sealing plate 6, and the length of sealing plate 6 is 250mm, and sealing plate 6 is bonded with the inner wall of water tank 2, and sealing plate 6 follows cunning
Block 4 slides together, and not used elongate holes are sealed, and the side that sealing plate 6 is bonded with 2 inner wall of water tank uses rubber material
Matter, the other side use rigid material；
The top of middle part babinet is fixed with permeable cover board 7, and bottom end is fixed with bearing plate 10, and bearing plate 10 is perforated steel plate,
Meet simultaneously and bear the weight of concrete test block 9 and permeable function, coagulation is placed between permeable cover board 7 and bearing plate 10
The surrounding of native test block 9, middle part cabinet wall is bonded with inflating rubber bed course 11, and the side of middle part babinet is equipped with constant-pressure inflating device
External constant-pressure inflating device is attached and with inflating rubber bed course 11 to it by connector 8, constant-pressure inflating device connector 8
It is inflated, constant-pressure inflating device is hydraulic servo device or gas boosting pump with manograph, the pressure of constant-pressure inflating device
Power range is 50-500kpa, and inflating rubber bed course 11 expands after inflating, can between the concrete test block 9 of arbitrary dimension nothing
Gap is bonded；Lower part box is located in sink 12, and the communication port 13 communicated with sink 12 is provided on the two side of lower part box.
The wall thickness of upper box body, middle part babinet and lower part box is 5-10mm, height be respectively 550mm, 250mm and
300mm, cross section are identical square annular, inner edge a length of 150mm or 200m of square annular.
M10 is all made of between upper box body and middle part babinet, middle part babinet and lower part box to be bolted；Each babinet uses
Transparent organic glass material.
Embodiment one：
Using a kind of test method of pervious concrete pervasion test device of the present embodiment, include the following steps：
The first step：150mm × 150mm of certain age × 150mm cube concrete test specimens 9 are taken out, surface is dried
Vaseline or butter are smeared in side afterwards, plastic film is used in combination to wrap up its side wall 3 circle；
Second step：Concrete test block 9 is mounted in the inflating rubber bed course 11 of middle part babinet (unaerated), and at its bottom
Portion is installed by perforated steel plate；
Third walks：Permeable cover board 7 is fixed above concrete test block 9, with constant-pressure inflating device by pressing air charging system
Connector 8 is inflated inflating rubber bed course 11, until constant pressure arrangement shows that pressure is 50kPa；
4th step：It will be fixed with bolt between upper box body and middle part babinet, middle part babinet and lower part box, be used in combination two
Hose is separately connected top gap 5, lower part gap 14；
5th step：Tap (water feed apparatus 1) is opened, slow water filling is started, until flow fills entire water from bottom to top
Case 2, and top gap 5, lower part gap 14 start to stablize overflow；
6th step：The height of adjusting slider 4 makes water-head be maintained at horizontal plane small as possible, to ensure that flow is in laminar flow
Sliding block 4 is fixed in sliding slot 3 by state after regulating；
7th step：It stands several minutes, starts to test after waterflow stabilization and bubble empty；
8th step：Stopwatch is opened, while picking up with beaker the seepage flow water V of 30s at the overflow port of lower part, when unit of account
The volume flow Q of interior water；Experiment 3 times is repeated, its average value is taken；
9th step：The centre distance of top gap 5, lower part gap 14, i.e. head loss Δ h are measured with ruler；
Tenth step：The height of adjusting slider 4 repeats the 5th step to the 9th step to change water table gradient after waterflow stabilization,
Number of repetition >=6 time；
11st step：Utilize above each parameter calculation permeability coefficient.
Embodiment two：
Using a kind of test method of pervious concrete pervasion test device of the present embodiment, include the following steps：
The first step：100mm × 100mm of certain age × 150mm cube concrete test specimens 9 are taken out, surface is dried
Vaseline or butter are smeared in side afterwards, plastic film is used in combination to wrap up its side wall 3 circle；
Second step：Concrete test block 9 is mounted in the inflating rubber bed course 11 of middle part babinet (unaerated), and at its bottom
Portion is installed by perforated steel plate；
Third walks：Permeable cover board 7 is fixed above concrete test block 9, with constant-pressure inflating device by pressing air charging system
Connector 8 is inflated inflating rubber bed course 11, until constant-pressure inflating device shows that pressure is 100kPa；
4th step：It will be fixed with bolt between upper box body and middle part babinet, middle part babinet and lower part box, be used in combination two
Hose is separately connected top gap 5, lower part gap 14；
5th step：Tap (water feed apparatus 1) is opened, slow water filling is started, until flow fills entire water from bottom to top
Case 2, and top gap 5, lower part gap 14 start to stablize overflow；
6th step：The height of adjusting slider 4 makes water-head be maintained at horizontal plane small as possible, to ensure that flow is in laminar flow
Sliding block 4 is fixed in sliding slot 3 by state after regulating；
7th step：It stands several minutes, starts to test after waterflow stabilization and bubble empty；
8th step：Stopwatch is opened, while picking up with beaker the seepage flow water V of 30s at the overflow port of lower part, when unit of account
The volume flow Q of interior water；Experiment 3 times is repeated, its average value is taken；
9th step：The centre distance of top gap 5, lower part gap 14, i.e. head loss Δ h are measured with ruler；
Tenth step：The height of adjusting slider 4 repeats the 5th step to the 9th step to change water table gradient after waterflow stabilization,
Number of repetition >=6 time；
11st step：Utilize above each parameter calculation permeability coefficient.
Embodiment three：
Using a kind of test method of pervious concrete pervasion test device of the present embodiment, include the following steps：
The first step：The cube concrete test specimens of 200mm × 200mm of certain age × 150 9 are taken out, after drying surface
Vaseline or butter are smeared in side, plastic film is used in combination to wrap up its side wall 3 circle；
Second step：Concrete test block 9 is mounted in the inflating rubber bed course 11 of middle part babinet (unaerated), and at its bottom
Portion is installed by perforated steel plate；
Third walks：Permeable cover board 7 is fixed above concrete test block 9, with constant-pressure inflating device by pressing air charging system
Connector 8 is inflated inflating rubber bed course 11, until constant-pressure inflating device shows that pressure is 100kPa；
4th step：It will be fixed with bolt between upper box body and middle part babinet, middle part babinet and lower part box, be used in combination two
Hose is separately connected top gap 5, lower part gap 14；
5th step：Tap (water feed apparatus 1) is opened, slow water filling is started, until flow fills entire water from bottom to top
Case 2, and top gap 5, lower part gap 14 start to stablize overflow；
6th step：The height of adjusting slider 4 makes water-head be maintained at horizontal plane small as possible, to ensure that flow is in laminar flow
Sliding block 4 is fixed in sliding slot 3 by state after regulating；
7th step：It stands several minutes, starts to test after waterflow stabilization and bubble empty；
8th step：Stopwatch is opened, while picking up with beaker the seepage flow water V of 30s at the overflow port of lower part, when unit of account
The volume flow Q of interior water；Experiment 3 times is repeated, its average value is taken；
9th step：The centre distance of top gap 5, lower part gap 14, i.e. head loss Δ h are measured with ruler；
Tenth step：The height of adjusting slider 4 repeats the 5th step to the 9th step to change water table gradient after waterflow stabilization,
Number of repetition >=6 time；
11st step：Utilize above each parameter calculation permeability coefficient.
In permeability test, infiltration flow is divided into laminar flow and turbulent two kinds of fundamental types, the only slower laminar region of flow velocity,
Just meet Darcy law applicable elements, and water table gradient is smaller in pervious concrete permeability test, flow velocity is also small, so water
Darcy laws are obeyed in flowing, and calculation formula is：
V=ki (1)
In formula：V is percolation flow velocity；K is infiltration coefficient；I=Δs h/L is water table gradient, and wherein Δ h is head loss, and L is
Piece lengths, head loss Δ h are the difference in height of two gap horizontal tubes.
The volume flow of water is Q in unit interval, and the basal area of concrete test block (9) is A, then flow velocity is：
V=Q/A (2)
It can be obtained by formula (1) and formula (2)：
K=Q/Ai (3)
It can be conveniently accomplished the experiment of pervious concrete penetration testing by the above method, effectively avoid concrete test block
Side wall leak influence to experimental data, test process head is easy to adjust, can obtain multi-group data, and test result is illustrated.
Head described in the utility model is：With the mechanical energy for the unit mass liquid that liquid-column height indicates, arbitrary cross-section
Locate the energy of Unit Weight water, is equal to than energy (energy of unit mass water) divided by acceleration of gravity.
Above description is the explanation to the utility model, is not the restriction to utility model, defined by the utility model
Range is within the protection scope of the utility model referring to claim, can make any type of modification.
Claims (9)
1. a kind of pervious concrete pervasion test device, it is characterised in that：Including water tank (2), the top of water tank (2) to be connected into
The bottom of water installations (1), water tank (2) is fixed in sink (12), and the one side wall of sink (12) is provided with lower part gap, under described
Lower part overflow pipe (14) is installed at portion's gap；
The water tank (2) is made up of upper box body connected in sequence from top to bottom, middle part babinet and lower part box,
Wherein, the side of upper box body is provided with elongate holes, and the internal face of the elongate holes is fixed with sliding slot (3), sliding slot
(3) outside is equipped with the sliding block (4) slid along, and band is provided between sliding block (4) and sliding slot (3), is opened in the middle part of sliding block (4)
There is top gap (5), passes through rubber hose in top gap (5), the bottom end of sliding block (4) is connected with sealing plate (6), described
Sealing plate (6) is bonded with the inner wall of water tank (2), and the sealing plate (6) follows sliding block (4) to slide together, and by not used length
Strip-shaped hole seals；
Wherein, the top of middle part babinet is fixed with permeable cover board (7), and bottom end is fixed with bearing plate (10), permeable cover board (7) with
Concrete test block (9) is placed between bearing plate (10), the surrounding of middle part cabinet wall is provided with inflating rubber bed course (11), fills
It is seamless between gas rubber spacer (11) and concrete test block (9) to be bonded；
Wherein, the lower part box is located in sink (12), and the company communicated with sink (12) is provided on the two side of lower part box
Port (13).
2. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The one of the middle part babinet
Side is equipped with constant-pressure inflating device connector (8), the constant-pressure inflating device connector (8) by external constant-pressure inflating device with fill
Gas rubber spacer (11) is attached, and constant-pressure inflating device is hydraulic servo device or gas boosting pump with manograph, is determined
It is 50-500kpa to press the pressure limit of air charging system.
3. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：It is set on the sliding slot (3)
It is equipped with scale, the mark ranging from 0-200mm of scale.
4. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The upper box body, in
The wall thickness of portion's babinet and lower part box is 5-10mm, and height is respectively 550mm, 250mm and 300mm, and cross section is identical
Pros' annular, inner edge a length of 150mm or 200m of square annular.
5. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The upper box body is in
It is all made of and is bolted between portion's babinet, middle part babinet and lower part box；Each babinet uses transparent organic glass material.
6. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The inflating rubber bed course
(11) Nian Jie with the inner wall of middle part babinet.
7. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The bearing plate (10) is
Perforated steel plate.
8. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The sealing plate (6)
Length is 250mm, and the side that the sealing plate (6) is bonded with water tank (2) inner wall uses rubber material, and the other side is using rigid material
Material.
9. a kind of pervious concrete pervasion test device as described in claim 1, it is characterised in that：The lower part overflow pipe
(14) beaker with a scale is provided with below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726845.2U CN208091877U (en) | 2018-05-15 | 2018-05-15 | A kind of pervious concrete pervasion test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820726845.2U CN208091877U (en) | 2018-05-15 | 2018-05-15 | A kind of pervious concrete pervasion test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208091877U true CN208091877U (en) | 2018-11-13 |
Family
ID=64052317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820726845.2U Expired - Fee Related CN208091877U (en) | 2018-05-15 | 2018-05-15 | A kind of pervious concrete pervasion test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208091877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801874A (en) * | 2018-05-15 | 2018-11-13 | 江南大学 | A kind of pervious concrete pervasion test device and its test method |
| CN109655395A (en) * | 2019-01-30 | 2019-04-19 | 北京城建勘测设计研究院有限责任公司 | A kind of experiment casing for simulating multi-layer Underground Water laminar motion |
-
2018
- 2018-05-15 CN CN201820726845.2U patent/CN208091877U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801874A (en) * | 2018-05-15 | 2018-11-13 | 江南大学 | A kind of pervious concrete pervasion test device and its test method |
| CN109655395A (en) * | 2019-01-30 | 2019-04-19 | 北京城建勘测设计研究院有限责任公司 | A kind of experiment casing for simulating multi-layer Underground Water laminar motion |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20200515 |