CN207133290U - A kind of device for determining pervious concrete service behaviour - Google Patents
A kind of device for determining pervious concrete service behaviour Download PDFInfo
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- CN207133290U CN207133290U CN201721184983.4U CN201721184983U CN207133290U CN 207133290 U CN207133290 U CN 207133290U CN 201721184983 U CN201721184983 U CN 201721184983U CN 207133290 U CN207133290 U CN 207133290U
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- bucket
- pervious concrete
- service behaviour
- testing inspection
- concrete service
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Abstract
The utility model discloses a kind of device for determining pervious concrete service behaviour, upper and lower two parts that this device includes detachably assembling are formed.The upper part includes testing inspection bucket, and the testing inspection bucket is detachably arranged in the top of fixed mount, transparent disc is provided with the top of the testing inspection bucket, counter weight device is provided with the top of the transparent disc.The lower part includes base, and shake table is provided with the base, and vibrating motor is provided with the bottom of shake table, and reflective mirror is provided with immediately below testing inspection bucket, and the reflective mirror is fixedly mounted on base.The service behaviour for the evaluation pervious concrete that can be quantified using this method, so that it is guaranteed that pervious concrete can possess good service behaviour, lifting construction quality under different operating modes.
Description
Technical field
Construction material performance test apparatus field is the utility model is related to, in particular it relates to pervious concrete service behaviour
Assay method device.
Background technology
Pervious concrete is celluar concrete, and it is a kind of porous light coagulation formed by aggregate, cement and water mixing
Soil, it is uniform to form hole without or with a small amount of fine aggregate by coarse aggregate Surface coating a thin layer cement mortar mutually bonding for it
The alveolate texture of distribution, therefore the characteristics of with ventilative, permeable, in light weight high radiating, can effective recharge of groundwater, alleviation city
Some Urban Environmental Problems for drastically declining etc. of level of ground water, and oil compounds on ground etc. pair can be effectively eliminated
The harm of environmental pollution, meanwhile, it is protection underground water, maintaining ecological balance, urban heat land effect can be alleviated, promote surface water to follow
The excellent pavement material of ring.
According to the structural behaviour of pervious concrete and proportioning composition, dry concrete can be defined as, is gelled
Material is less, and its intensity is mainly extruded from by the close nesting of coarse aggregate, therefore, the performance evaluation of pervious concrete
It is different with the performance evaluation of normal concrete.
The new service behaviour for mixing pervious concrete has to the intensity of pervious concrete, permeability, wearability etc. after hardening
Significant influence, binder materials is excessive, and the hole of pervious concrete can be caused to block, influence osmotic efficiency, binder materials
Very few, aggregate can not be wrapped up by mortar completely, and caking property is obviously reduced, easy to fall off.
Different forms of construction work, and pervious concrete mix and stir after haulage time its service behaviour is influenceed it is also extremely aobvious
Write.Vibration can make binder materials rapidly downwards vibration isolation, make mix permeable solidifying native surface layer because it is few slurry and cohesive strength is insufficient, make bottom
Hole influence infiltration is blocked because mortar assembles；The closely knit pulp in pervious concrete top layer can be made by rolling, but bottom loosens；By not
After same haulage time, cement hardens inside pervious concrete, and now mortar mobility is worse.
It is seldom currently for the method for pervious concrete performance evaluation, it is also impracticable.Take traditional method i.e. mixed
The workability and the slump for coagulating soil also have significant limitation as evaluation method.
Utility model content
The purpose of this utility model is to provide a kind of device for determining pervious concrete service behaviour, can using this method
The service behaviour of quantitative evaluation pervious concrete, so that it is guaranteed that pervious concrete can possess good work under different operating modes
Make performance, lifting construction quality.
In order to realize above-mentioned technical characteristic, what the purpose of this utility model was realized in：One kind determines permeable coagulation
The device of native service behaviour, upper and lower two parts that this device includes detachably assembling are formed.
The upper part includes testing inspection bucket, and the testing inspection bucket is detachably arranged in the top of fixed mount, institute
State and transparent disc is provided with the top of testing inspection bucket, counter weight device is installed at the top of the transparent disc.
The lower part includes base, and shake table is provided with the base, and vibration electricity is provided with the bottom of shake table
Machine, is provided with reflective mirror immediately below testing inspection bucket, and the reflective mirror is fixedly mounted on base.
The fixed mount is assembled by montant and cross bar welding, and the montant is fixedly mounted on vertically in decussate texture
The top of shake table, cross bar is welded and fixed between the montant, L-type supporting plate, the examination are installed with the inside of montant
Detection bucket is tested to be supported in L-type supporting plate.
The counter weight device includes polylith balancing weight, and the balancing weight is sleeved in fix bar, and the fix bar is solid vertically
It is scheduled on the center of transparent disc.
The vibrating motor uses low-frequency vibration, and its vibration frequency is no more than 50HZ.
The testing inspection bucket uses high-strength transparence material, and indicates corresponding pine paving system in the side wall of testing inspection bucket
Number graduation mark.
The bucket wall bottom of the testing inspection bucket is provided with cylindrical holes, the corresponding installation two in bucket wall top at interval of 90 °
The individual handle being arranged symmetrically.
The testing inspection bucket uses cylindrical structure, and the bottom plate of bucket is up concave type structure.
The reflective mirror and can reflect in bottom plate thoroughly towards the bottom plate of bottom plate testing inspection bucket with the progress of experiment
Water coagulation soil pulp situation.
20~30cm of bottom plate distance of the reflective mirror distance test (DT) detection bucket.
The utility model has the advantages that：
It can determine the reasonability of pervious concrete match ratio by pulp situation by using said apparatus, while can be with
By repeated multiple times experiment, the pulp time under the conditions of vibroroller cmpacting of the pervious concrete under existing match ratio is obtained,
And coefficient of loose laying is recorded, obtain the standard of a quantization pervious concrete service behaviour；At the construction field (site) to it is different transport away from
The service behaviour of pervious concrete from caused by is evaluated, and it is evaluated from two angles of pulp time and compactness,
Control the construction quality of pervious concrete.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is Facad structure figure of the present utility model.
Fig. 2 is construction profile of the present utility model.
Fig. 3 is top view of the present utility model.
Fig. 4 is L-type supporting plate structure schematic diagram of the present utility model.
In figure：It is fix bar 1, balancing weight 2, transparent disc 3, handle 4, testing inspection bucket 5, bolt 6, L-type supporting plate 7, anti-
Light microscopic 8, fixed mount 9, shake table 10, vibrating motor 11, base 12.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Embodiment 1：
As Figure 1-4, a kind of device for determining pervious concrete service behaviour, this device include what is detachably assembled
Upper and lower two parts are formed.Wherein, the upper part includes testing inspection bucket 5, and the testing inspection bucket 5 is detachably arranged in
The top of fixed mount 9, the top of the testing inspection bucket 5 are provided with transparent disc 3, and the top of the transparent disc 3 is provided with
Counter weight device.The lower part includes base 12, and shake table 10 is provided with the base 12, is installed in the bottom of shake table 10
There is vibrating motor 11, reflective mirror 8 is provided with the underface of testing inspection bucket 5, the reflective mirror 8 is fixedly mounted on base 12
On.By using above-mentioned device, it can be used in the test of follow-up pervious concrete service behaviour.
Further, the fixed mount 9 is assembled by montant and cross bar welding, and the montant is vertical in decussate texture
The top of shake table 10 is fixedly mounted on, cross bar is welded and fixed between the montant, L-type branch is installed with the inside of montant
Fagging 7, the testing inspection bucket 5 are supported in L-type supporting plate 7.Testing inspection bucket 5 can be entered by described fixed mount 9
Row support is fixed.
Further, the counter weight device includes polylith balancing weight 2, and the balancing weight 2 is sleeved in fix bar 1, described
Fix bar 1 is fixed on the center of transparent disc 3 vertically.Follow-up effect of vibrating can be ensured by described balancing weight 2.
Further, the vibrating motor 11 uses low-frequency vibration, and its vibration frequency is no more than 50HZ.Using suitably shaking
Dynamic frequency can ensure vibrating effect.
Further, the testing inspection bucket 5 uses high-strength transparence material, and is indicated in the side wall of testing inspection bucket 5
Corresponding coefficient of loose laying graduation mark.The compactness of corresponding pervious concrete, and reference are calculated by described coefficient of loose laying
Code requirement compactness is compared.
Further, the bucket wall bottom of the testing inspection bucket 5 is provided with cylindrical holes 13 at interval of 90 °, on bucket wall
Two handles 4 being arranged symmetrically of the corresponding installation in portion.It is connected by convenient be fixed with fixed mount 9 of cylindrical holes 13.
Further, the testing inspection bucket 5 uses cylindrical structure, and the bottom plate of bucket is up concave type structure.
Further, the reflective mirror 8 faces the bottom plate of bottom plate testing inspection bucket 5, and can be reflected with the progress of experiment
Go out pervious concrete pulp situation in bottom plate.
Further, 20~30cm of bottom plate distance of the distance test (DT) of the reflective mirror 8 detection bucket 5.And then facilitate through anti-
The pulp situation of pervious concrete in om observation bottom plate.
Embodiment 2：
Using the method for the device that pervious concrete service behaviour is determined described in any one, it comprises the following steps：
Step1：Sample preparation, three layers of loading testing inspection bucket 5, every layer of mixture are divided to be about high 1/ of cylinder after consolidating mixture
3, uniformly plugged and pounded 25-35 times with tamper on every layer cross section, should be inserted through this layer when plugging and pounding second layer ceiling layer and make tamper firm
Following one layer is had just enter into, after top layer consolidates, is just struck off with flat board along testing inspection bucket 5 is suitable for reading；
Step2：Fixation test detects bucket 5, by the cylinder on 4 of fixed mount 9 vertical steel pipe insertion testing inspection buckets
Aperture 13, the bottom of testing inspection bucket 5 is rested on cross bar, and fixed testing inspection bucket with nut；
Step3：Counterweight, balancing weight 2 is placed in the fix bar 1 of transparent disc 3, is then pressed in above pervious concrete；
Step4：Counterweight finishes, and opens the vibrating motor 11 of shake table；
Step5：Simultaneously timing is observed, while passes through the pervious concrete state that the viewing test of reflective mirror 8 detects the bottom of bucket 5；
Step6：Close shake table, the compaction of pervious concrete from reflective mirror 8, when bottom starts pulp immediately
Close shake table；
Step7：Interpretation of result, the compactness of corresponding pervious concrete is calculated by coefficient of loose laying, and with reference to specification
It is required that compactness is compared.
Embodiment 3：
A kind of method for determining pervious concrete service behaviour, this method comprise the following steps：
Sample preparation：By mixture by design mixture proportion prepare, stir, by the time that takes the dish out of the pot be respectively 30min, 60min,
90min, 120min are tested, and it is about high 1/3 of cylinder after consolidating to divide three layers of loading testing inspection bucket, every layer of mixture, every
Under uniformly plugging and pounding 25 with tamper on layer cross section, it should be inserted through this layer when plugging and pounding second layer ceiling layer and make tamper just into following
One layer, top layer tamping finishes to be struck off using flat board along testing inspection bucket is suitable for reading.
Fixation test detects bucket：By the cylindrical holes on 4 steel pipes insertion testing inspection bucket of fixed mount, experiment is examined
Survey bottom of the barrel to rest in transverse connecting rod, and fixed testing inspection bucket with nut.
Counterweight：The balancing weight that counterweight is 12Kg is placed on the sleeve of transparent disc, is then pressed on pervious concrete
Face.
Open shake table：Counterweight finishes, and opens shake table, vibration frequency is no more than 50HZ.
Observe simultaneously timing：The pervious concrete state at bucket bottom is detected by reflective mirror viewing test simultaneously.
Close shake table：From the compaction of reflective sem observation pervious concrete, when bottom starts pulp and closed immediately to shake
Dynamic platform.
The compactness of corresponding pervious concrete is calculated by coefficient of loose laying, and is compared with reference to code requirement compactness
Compared with.
Embodiment 4：
Experiment is used to coordinate such as table 1：
Table 1：Match ratio used in experiment
Water-cement ratio is obvious to pervious concrete intensity effect, and the content of additive can significantly improve the work of pervious concrete
Performance, therefore do not change the content of experiment other materials in testing, reduce influence of the other factors to experiment.Used in experiment
Building stones are diameter 3-6mm granite stones, and cement is Portland cement, and water is running water, and additive is Beijing good fortune bodyguard
The water reducer of spit of fland Science and Technology Ltd. production.
Performance test is carried out to different haulage times, and records the time, result of the test is as shown in table 2 below：
Table 2：The performance test of different haulage times
To the sample of above-mentioned numbering, the intensity test of progress 7 days, test result such as table 3 below：
Table 3：7 days intensity test results
By result of the test it can be seen that：Volume and take the dish out of the pot time close phase of the service behaviour of pervious concrete with additive
Close, can be described with the pulp time.Under conditions of match ratio is certain, compression strength is bigger, i.e. the pulp time is smaller, table
Show that the service behaviour of concrete is better.The result of comprehensive upper table, it can be deduced that：In the material that the time that takes the dish out of the pot paves in 30min or so
Son, pulp time are that 3 ± 1s is optimum state；In the material for making clothes that the time that takes the dish out of the pot paves in 60min or so, the pulp time is 5 ± 1s
For optimum state；In the material for making clothes that the time that takes the dish out of the pot paves in 90min or so, the pulp time is that 7 ± 1s is optimum state；When taking the dish out of the pot
Between the material for making clothes that is paved in 120min or so, the pulp time is that 9 ± 1s is optimum state；The pulp time is difficult to ensure more than 10s
The compactness and intensity of pervious concrete.
Above-described embodiment is used for illustrating the utility model, rather than the utility model is limited, in this practicality
New spirit and any modifications and changes in scope of the claims, made to the utility model, both fall within this reality
With new protection domain.
Claims (9)
- A kind of 1. device for determining pervious concrete service behaviour, it is characterised in that：This device is upper and lower including detachably assembling Two parts are formed；The upper part includes testing inspection bucket（5）, the testing inspection bucket（5）It is detachably arranged in fixed mount（9）Top Portion, the testing inspection bucket（5）Top be provided with transparent disc（3）, the transparent disc（3）Top be provided with refitting Put；The lower part includes base（12）, the base（12）On shake table is installed（10）, in shake table（10）Bottom Vibrating motor is installed（11）, in testing inspection bucket（5）Underface be provided with reflective mirror（8）, the reflective mirror（8）Fixed peace Mounted in base（12）On.
- A kind of 2. device for determining pervious concrete service behaviour according to claim 1, it is characterised in that：The fixation Frame（9）Assembled by montant and cross bar welding, the montant is fixedly mounted on shake table vertically in decussate texture（10）'s Top, cross bar is welded and fixed between the montant, L-type supporting plate is installed with the inside of montant（7）, the testing inspection Bucket（5）It is supported on L-type supporting plate（7）On.
- A kind of 3. device for determining pervious concrete service behaviour according to claim 1, it is characterised in that：The counterweight Device includes polylith balancing weight（2）, the balancing weight（2）It is sleeved on fix bar（1）On, the fix bar（1）It is fixed on vertically Transparent disc（3）Center.
- A kind of 4. device for determining pervious concrete service behaviour according to claim 1, it is characterised in that：The vibration Motor（11）Using low-frequency vibration, its vibration frequency is no more than 50HZ.
- A kind of 5. device for determining pervious concrete service behaviour according to claim 1, it is characterised in that：The experiment Detect bucket（5）Using high-strength transparence material, and in testing inspection bucket（5）Side wall indicate corresponding coefficient of loose laying graduation mark.
- A kind of 6. device for determining pervious concrete service behaviour according to claim 1 or 5, it is characterised in that：It is described Testing inspection bucket（5）Bucket wall bottom 90 ° are provided with cylindrical holes（13）, the corresponding installation two in bucket wall top is symmetrically The handle of arrangement（4）.
- A kind of 7. device for determining pervious concrete service behaviour according to claim 1, it is characterised in that：The experiment Detect bucket（5）Using cylindrical structure, and the bottom plate of bucket is up concave type structure.
- A kind of 8. device for determining pervious concrete service behaviour according to claim 1, it is characterised in that：It is described reflective Mirror（8）Face bottom plate testing inspection bucket（5）Bottom plate, and can reflect pervious concrete in bottom plate with the progress of experiment and go out Slurry situation.
- A kind of 9. device of measure pervious concrete service behaviour according to claim 1 or 8, it is characterised in that：It is described Reflective mirror（8）Distance test (DT) detects bucket（5）20 ~ 30cm of bottom plate distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721184983.4U CN207133290U (en) | 2017-09-15 | 2017-09-15 | A kind of device for determining pervious concrete service behaviour |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721184983.4U CN207133290U (en) | 2017-09-15 | 2017-09-15 | A kind of device for determining pervious concrete service behaviour |
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| CN207133290U true CN207133290U (en) | 2018-03-23 |
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| CN201721184983.4U Expired - Fee Related CN207133290U (en) | 2017-09-15 | 2017-09-15 | A kind of device for determining pervious concrete service behaviour |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576781A (en) * | 2017-09-15 | 2018-01-12 | 中国葛洲坝集团勘测设计有限公司 | A kind of device and method for determining pervious concrete service behaviour |
| CN109596554A (en) * | 2019-01-24 | 2019-04-09 | 武汉理工大学 | A kind of detection device and its application method of pervious concrete water purification characteristic |
| CN111443188A (en) * | 2020-03-10 | 2020-07-24 | 中国地质大学（武汉） | Recycled aggregate permeable concrete slurry uniformity evaluation device for simulating construction state |
-
2017
- 2017-09-15 CN CN201721184983.4U patent/CN207133290U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107576781A (en) * | 2017-09-15 | 2018-01-12 | 中国葛洲坝集团勘测设计有限公司 | A kind of device and method for determining pervious concrete service behaviour |
| CN109596554A (en) * | 2019-01-24 | 2019-04-09 | 武汉理工大学 | A kind of detection device and its application method of pervious concrete water purification characteristic |
| CN111443188A (en) * | 2020-03-10 | 2020-07-24 | 中国地质大学（武汉） | Recycled aggregate permeable concrete slurry uniformity evaluation device for simulating construction state |
| CN111443188B (en) * | 2020-03-10 | 2021-04-09 | 中国地质大学（武汉） | Recycled aggregate permeable concrete slurry uniformity evaluation device for simulating construction state |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180323 Termination date: 20190915 |
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| CF01 | Termination of patent right due to non-payment of annual fee |