CN207336315U - The measurement device of pervious concrete porosity distribution - Google Patents
The measurement device of pervious concrete porosity distribution Download PDFInfo
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- CN207336315U CN207336315U CN201721413191.XU CN201721413191U CN207336315U CN 207336315 U CN207336315 U CN 207336315U CN 201721413191 U CN201721413191 U CN 201721413191U CN 207336315 U CN207336315 U CN 207336315U
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- CN
- China
- Prior art keywords
- pervious concrete
- vernier scale
- measurement device
- porosity distribution
- porosity
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Abstract
It is vertically-mounted on the base to have support shaft the utility model discloses the measurement device of pervious concrete porosity distribution, height adjustment device is installed, the height adjusts and is provided with measuring device in regulating device on the support shaft.The height adjustment device includes vernier scale, and the vernier scale is slidably installed on the blade of top, and micromatic setting is provided with above vernier scale, is fixed with the side wall of vernier scale and hangs thing pawl.The measuring device includes carrying apparatus, graduated cylinder and seeping container.This device uses electronic digital display and micromatic setting, the position of the accurate Control Assay of energy, the water discharged by measuring a certain thickness sample skeleton both can obtain the ensemble average porosity of pervious concrete, it can obtain the certain thickness porosity in optional position again, and can obtain the porosity distribution of pervious concrete with a certain thickness sequentially determining porosity.
Description
Technical field
The utility model belongs to the technical field of measurement and test of porosity of porous medium, more particularly to a kind of pervious concrete hole
The measurement device of rate distribution.
Background technology
The multi-pore structure of pervious concrete causes road surface to have good water permeability, and rainwater can quickly permeate the ground,
So as to effectively reduce or eliminate the flood of urban storm initiation, this sends out in being built in " the sponge city " that China is implementing
Wave important function.In order to be more nearly engineering reality, pervious concrete sample shaping when more using hydrostatic profile or vibration into
The modes such as type, porosity distribution and uneven after shaping, particularly on compacting direction, such as using the permeable of hydrostatic profile mode
The big phenomenon of the small lower part porosity of upper hole gap rate often occurs along compacting direction in concrete sample.
The property such as the intensity of pervious concrete and infiltration coefficient is all closely related with the porosity distribution of sample, such as permeable mixed
The infiltration coefficient for coagulating soil is often depending on the controlling sections of area porosity minimum, in addition, the porosity distribution of pervious concrete
Also its laws for plugging is influenced, therefore, measure pervious concrete porosity distribution is significant to research pervious concrete.And have
The device and method of measure pervious concrete mostly mass method or vacuum sealing method based on buoyancy, and the hole of these methods measure
Gap rate is the mean porosities of whole sample, and is difficult to realize the measure of porosity distribution.
Utility model content
Technical problem to be solved in the utility model is to provide the measurement device of pervious concrete porosity distribution, this dress
Put and use electronic digital display and micromatic setting, the position of the accurate Control Assay of energy, by measuring a certain thickness sample skeleton discharge
Water not only can obtain the ensemble average porosity of pervious concrete, but also can obtain the certain thickness porosity in optional position, and with
A certain thickness sequentially determining porosity can obtain the porosity distribution of pervious concrete.
In order to solve the above-mentioned technical problem, the utility model proposes following technical scheme：Pervious concrete porosity distribution
Measurement device, it includes base, vertically-mounted on the base to have support shaft, and height is provided with the support shaft and adjusts dress
Put, the height adjusts and is provided with measuring device in regulating device.
The support shaft includes lower pole, middle part stop block is set with the lower pole, on the stop block of middle part
Part is top blade, and top stop block is fixed with the top of lower pole.
The height adjustment device includes vernier scale, and the vernier scale is slidably installed on the blade of top, in vernier
Micromatic setting is installed above ruler, is fixed with the side wall of vernier scale and hangs thing pawl.
The measuring device includes carrying apparatus, graduated cylinder and seeping container.
The bottom of the base is provided with multiple legs.
The top blade indicates scale and is equipped with fixed grid, and the fixed grid is engaged structure with the moving grid being arranged on vernier scale
Into capacitor grid transducer.
The seeping container is equipped with spillway hole and inlet opening, and inlet opening is equipped with valve.
The carrying apparatus includes hanging wire, and one end of the hanging wire, which is connected to, to hang on thing pawl, and the other end is connected with bottom support
Disk, is provided with a large amount of holes in the bottom tray.
The vernier scale is equipped with electronic display and zero key.
The vernier scale is provided with the second stop screw with the matched position of top blade；The micromatic setting and top
The matched position of blade is provided with the first stop screw.
The base is equipped with air level.
The utility model has the advantages that：
1st, the utility model can not only measure the ensemble average porosity of pervious concrete, but also can to measure optional position necessarily thick
The porosity of degree, and pervious concrete porosity distribution can obtain with a certain thickness sequentially determining porosity.
2nd, can the position of accurate Control Assay and the hole of the measure a certain thickness of sample using electronic digital display and micromatic setting
Rate.
3rd, pallet, seeping container, graduated cylinder are removable and replace, beneficial to carrying and available for various sizes of sample.
4th, equipped with air level and height-adjustable leg, the ground available for out-of-flatness.
5th, whole device is simple in structure, easy to operate.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is distribution of the sample porosity along height in embodiment 3.
In figure, base 1, leg 2, lower pole 3, middle part stop block 4, top blade 5, top stop block 6, air level 7,
Vernier scale 8, micromatic setting 9, hang thing pawl 10, the first stop screw 11, the second stop screw 12, graduated cylinder 13, seeping container 14, overflow
Water hole 15, inlet opening 16, hanging wire 17, bottom tray 18.
Embodiment
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1：
Such as Fig. 1, the measurement device of pervious concrete porosity distribution, it includes base 1, vertically-mounted on the base 1
There is support shaft, height adjustment device is installed on the support shaft, the height adjusts and is provided with measuring device in regulating device.
Further, the support shaft includes lower pole 3, middle part stop block 4 is set with the lower pole 3, at middle part
Part on stop block 4 is top blade 5, and top stop block 6 is fixed with the top of lower pole 3.The height adjusts dress
Put and be slidably installed including vernier scale 8, the vernier scale 8 on top blade 5, fine setting is installed in the top of vernier scale 8
Device 9, is fixed with the side wall of vernier scale 8 and hangs thing pawl 10.The measuring device includes carrying apparatus, graduated cylinder 13 and ponding and holds
Device 14.
Further, the bottom of the base 1 is provided with multiple legs 2.The height of the leg 2 can be adjusted,
And then the levelness of adjustment base 1.
Further, the top blade 5 indicates scale and is equipped with fixed grid, and the fixed grid is with being arranged on vernier scale 8
Moving grid is engaged composition capacitor grid transducer.
Further, the seeping container 14 is equipped with spillway hole 15 and inlet opening 16, and inlet opening 16 is equipped with valve.
Further, the carrying apparatus includes hanging wire 17, and one end of the hanging wire 17, which is connected to, to hang on thing pawl 10, separately
One end is connected with bottom tray 18, and a large amount of holes are provided with the bottom tray 18.It ensure that progress is permeable by hole.
Further, the vernier scale 8 is equipped with electronic display and zero key.Reading ensure that by electronic display
Convenience, is facilitated by zero key and is zeroed.
Further, the vernier scale 8 is provided with the second stop screw 12 with 5 matched position of top blade；It is described
Micromatic setting 9 is provided with the first stop screw 11 with 5 matched position of top blade.Its position is conveniently adjusted by stop screw
Put.
Further, the base 1 is equipped with air level 7.
Embodiment 2：
The measurement device of any one pervious concrete porosity distribution carries out pervious concrete porosity distribution measure
Method, it is characterised in that comprise the following steps：
Step1：Leg 2 is adjusted so that the liquid pearl in air level is in an intermediate position；
Step2：Unscrew the first stop screw 11 and the second stop screw 12 respectively, vernier scale 8 is slid into top blade 5
Top, tighten the second stop screw 12 and the first stop screw 11 respectively；
Step 3：Seeping container 14 is placed on base 1, is poured water from water inlet 16 to seeping container 14 to spillway hole 15
There is water spilling, close valve；
Step 4：By carrying apparatus carry on thing pawl 10 is hung, sample is placed on to the bottom tray 18 of carrying apparatus
On；
Step 5：Unscrew the first stop screw 11 and the second stop screw 12, slow slide downward vernier scale 8 to examination respectively
The first stop screw 11 is tightened, adjusts micromatic setting 9 to sample bottom and 15 bottom of spillway hole close to 15 bottom of spillway hole in sample bottom
Portion is concordant, tightens the second stop screw 12, then presses the zero key of vernier scale 8；
Step 6：Graduated cylinder 13 is placed on base 1, unscrews the first stop screw 11 and the second stop screw 12 respectively,
Slow slide downward vernier scale 8 tightens the first stop screw 11 to display screen reading close to m millimeter, adjusting micromatic setting 9 to
Display screen reading is m millimeter, tightens the second stop screw 12, writes down the reading V1 of graduated cylinder 13, the hole of sample m millimeters thicks and
The cumulative volume of skeleton is V, then the porosity of this m millimeters thick of sample is n1=(V-V1)/V；
Step 7：Complete sample is surveyed with m mm of thickness successively by Step 6, finally obtains point of the porosity along height
Cloth.
Embodiment 3：
Sample uses the obtained cylinder pervious concrete of hydrostatic profile mode for laboratory simulation Practical Project, highly and
Diameter is respectively 120mm and 100mm, and 15 bottom of spillway hole is 125mm away from 14 bottom of seeping container, and seeping container 14 is a diameter of
120mm, 8 range of vernier scale and precision are respectively 150mm and 0.1mm.
Step 1：Leg 2 is adjusted so that the liquid pearl in air level 7 is in an intermediate position；
Step 2：Unscrew the first stop screw 11 and the second stop screw 12 respectively, vernier scale 8 is slid into top blade
5 top, tightens the second stop screw 12 and the first stop screw 11 respectively；
Step 3：Seeping container 14 is placed on base 1, is poured water from water inlet 16 to seeping container 14 to spillway hole 15
There is water spilling, close valve；
Step 4：By carrying apparatus carry on thing pawl 10 is hung, sample is placed on to the bottom tray 18 of carrying apparatus
On, compaction plane is on the top；
Step 5：Unscrew the first stop screw 11 and the second stop screw 12, slow slide downward vernier scale 8 to examination respectively
The first stop screw 11 is tightened, adjusts micromatic setting 9 to sample bottom and 15 bottom of spillway hole close to 15 bottom of spillway hole in sample bottom
Portion is concordant, tightens the second stop screw 12, then presses the zero key of vernier scale 8；
Step 6：Graduated cylinder 13 is placed on base 1, unscrews the first stop screw 11 and the second stop screw 12 respectively,
Slow slide downward vernier scale 8 tightens the first stop screw 11 to display screen reading close to 10mm, adjusts micromatic setting 9 to aobvious
Display screen reading is 10mm, tightens the second stop screw 12, writes down the reading V1 of graduated cylinder 13, the hole and skeleton of sample 10mm thickness
Cumulative volume be V=10 × π × 502, then the porosity of this 10mm of sample thickness is n1=(V-V1)/V；
Step 7：Complete sample is surveyed with 10mm thickness successively by Step 6, finally obtains distribution of the porosity along height.
Result of the test is as shown in table 1 and Fig. 2：Table 1 is each layer porosity of sample；Fig. 2 is point of the sample porosity along height
Cloth.The ensemble average porosity of sample is 26.05%, but each layer porosity differs greatly, and sample is totally advised on compacting direction
Rule is that porosity small lower part porosity in top is big.
Each layer porosity of 1 sample of table
By above-mentioned description, those skilled in the art completely can be without departing from this item utility model technological thought
In the range of, various changes and amendments are carried out all within the scope of protection of the utility model.The utility model is not use up
Matters, belong to the common knowledge of those skilled in the art.
Claims (8)
1. the measurement device of pervious concrete porosity distribution, it is characterised in that：It includes base（1）, the base（1）It is upper perpendicular
Support shaft directly is installed, height adjustment device is installed on the support shaft, the height adjusts and is provided with survey in regulating device
Measure device；
The support shaft includes lower pole（3）, the lower pole（3）On be set with middle part stop block（4）, in middle part stop block
（4）On part be top blade（5）, in lower pole（3）Top be fixed with top stop block（6）；
The height adjustment device includes vernier scale（8）, the vernier scale（8）It is slidably installed in top blade（5）On,
Vernier scale（8）Top micromatic setting is installed（9）, in vernier scale（8）Side wall on be fixed with hang thing pawl（10）；
The measuring device includes carrying apparatus, graduated cylinder（13）And seeping container（14）.
2. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The base
（1）Bottom multiple legs are installed（2）.
3. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The top ruler
Body（5）Indicate scale and be equipped with fixed grid, the fixed grid is with being arranged on vernier scale（8）On moving grid be engaged form capacitive grating sensing
Device.
4. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The ponding holds
Device（14）Equipped with spillway hole（15）And inlet opening（16）, inlet opening（16）Equipped with valve.
5. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The loading dress
Put including hanging wire（17）, the hanging wire（17）One end be connected to hang thing pawl（10）On, the other end is connected with bottom tray（18）,
The bottom tray（18）On be provided with a large amount of holes.
6. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The vernier scale
（8）Equipped with electronic display and zero key.
7. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The vernier scale
（8）With top blade（5）Matched position is provided with the second stop screw（12）；The micromatic setting（9）With top blade
（5）Matched position is provided with the first stop screw（11）.
8. the measurement device of pervious concrete porosity distribution according to claim 1, it is characterised in that：The base
（1）It is equipped with air level（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413191.XU CN207336315U (en) | 2017-10-30 | 2017-10-30 | The measurement device of pervious concrete porosity distribution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721413191.XU CN207336315U (en) | 2017-10-30 | 2017-10-30 | The measurement device of pervious concrete porosity distribution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207336315U true CN207336315U (en) | 2018-05-08 |
Family
ID=62363172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721413191.XU Expired - Fee Related CN207336315U (en) | 2017-10-30 | 2017-10-30 | The measurement device of pervious concrete porosity distribution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207336315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643243A (en) * | 2017-10-30 | 2018-01-30 | 三峡大学 | The measure device and method of pervious concrete porosity distribution |
-
2017
- 2017-10-30 CN CN201721413191.XU patent/CN207336315U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643243A (en) * | 2017-10-30 | 2018-01-30 | 三峡大学 | The measure device and method of pervious concrete porosity distribution |
| CN107643243B (en) * | 2017-10-30 | 2023-05-02 | 三峡大学 | Device and method for measuring porosity distribution of pervious concrete |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20181030 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |