CN203587463U - Device for testing uniformity of concrete - Google Patents
Device for testing uniformity of concrete Download PDFInfo
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- CN203587463U CN203587463U CN201320782326.5U CN201320782326U CN203587463U CN 203587463 U CN203587463 U CN 203587463U CN 201320782326 U CN201320782326 U CN 201320782326U CN 203587463 U CN203587463 U CN 203587463U
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- balance bracket
- concrete
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- homogeneity
- balance
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- 238000012360 testing method Methods 0.000 title abstract description 23
- 229910001651 emery Inorganic materials 0.000 claims description 8
- 239000010977 jade Substances 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 8
- 241001504664 Crossocheilus latius Species 0.000 claims description 5
- 238000000034 method Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 7
- 230000032798 delamination Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 3
- 229910052601 baryte Inorganic materials 0.000 description 3
- 239000010428 baryte Substances 0.000 description 3
- 239000004568 cement Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005204 segregation Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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- 239000004576 sand Substances 0.000 description 1
- 210000000697 sensory organ Anatomy 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a device for testing the uniformity of concrete. The device comprises a balance scale which comprises a support seat, a balance bracket and leveling nuts, wherein the balance bracket can rotate around the support seat, and the leveling nuts are fixed on two ends of the balance bracket; a dividing rule and a transverse shaft are arranged on the side face of the balance bracket, a weight is arranged on the transverse shaft and can move between two ends of the transverse shaft, a hoop is arranged at the upper surface of the balance bracket, a charging barrel is mounted in the hoop and is in a cuboid box-shaped structure, the length of the charging barrel is equal to that of the balance bracket, the center of the charging barrel is aligned with the center of the balance bracket to equalize the weights, distributed on two sides of a central point of the balance bracket, of the charging barrel, and a barrel cover is arranged on the charging barrel. The device is simple in structure, can be used for testing rapidly and simply, can obtain accurate results and is simple and convenient to operate and easy to generalize; by virtue of the device, the testing and constructing efficiencies are increased.
Description
Technical field
The utility model relates to concrete material field tests, is specifically related to a kind of proving installation of homogeneity of concrete.
Background technology
Concrete is one of current most widely used building materials, and concrete is evenly mixed by cement, mineral admixture, rubble, sand, water, these six kinds of components of additive conventionally.Concrete was called as fresh concrete before initial set, because fresh concrete has mobility and plasticity, therefore each component in fresh concrete is being subject to, under the effects such as gravity, vibration, pumping pressure, relative motion to occur, because these density of fraction differ, the trend of its motion and speed are also different, for example: under gravity or effect of vibration, the sandstone that density is larger more easily sinks, the free water that density is less and cement slurry more easily float, and this different movement tendency has caused the lamination of inside concrete component.In concrete, the common lamination of component has: segregation, bleeding, aggregate sinking etc., when there are these phenomenons in concrete, often workability and pumpability are not good, concrete is difficult to fill full template, is difficult to through reinforcing bar gap, when pumping, also easily cause stifled pump, after concrete hardening, also can cause the defects such as honeycomb, pitted skin, aggregate exposure, have a strong impact on concrete intensity and permanance, construction engineering quality and people life property safety have been brought to great hidden danger.
Along with the development of concrete admixture technology, the application of high efficiency water reducing agent is popularized, and has also increased the risk of concrete delamination segregation when having reduced concrete water cement ratio, having improved concrete workability and pumpability.In addition, along with the development of construction process, some novel concrete are widely applied, as lightweight aggregate concrete and baryte.Light aggregate concrete and baryte for example, substitute gathering materials in normal concrete with the less light-weight aggregate of apparent density (haydite, float stone) and the larger barite of apparent density respectively, to realize, improve concrete specific strength, reduce dead load, the functions such as block radiation ray.But these special gathering materials are compared with common sandstone, poor larger with other density of fraction in concrete, are more prone to the bad problem of homogeneity.Therefore, the control of concrete homogeneity and improvement have more obtained people's attention, and homogeneity of concrete is controlled and improved basis is the test of homogeneity of concrete.
Yet, current unified approach and the device that still also there is no to evaluate and test homogeneity of concrete both at home and abroad.According to existing experimental study and engineering experience, people often by utilization test concrete slump, the method for collapse expansion degree, the flow time of falling slump cone tests concrete cohesiveness and water-retaining property, and the sense organ that is aided with tester judge concrete whether emanate bleeding, gather materials and whether float or sink, then carry out the concrete homogeneity of comprehensive evaluation according to these.Although this method is simple to operate, can only be qualitative and can not quantitatively judge concrete homogeneity, tester's subjective feeling or judgement also can impact test result.
Theoretically, the Perfected process of test homogeneity of concrete is to measure respectively the component ratio of concrete different parts and of poor quality, the component ratio of different parts and of poor quality less in concrete, and homogeneity of concrete is better.Some scholars have proposed a kind of homogeneity of concrete method of testing accordingly, in the concrete after sclerosis after core boring sampling, core is cut into cake of the same size, weigh respectively the quality of each cake, and observe densely distributed degree of gathering materials of tangent plane, with this, evaluate, measure concrete homogeneity, although this method can be tested concrete homogeneity more accurately, but the method must be carried out after concrete hardening, and concrete brill core and cutting process length consuming time, energy consumption is high, workload and dangerous large.Chinese patent 200710053100.0 has proposed a kind of lightweight aggregate concrete homogeneity method of testing, the method stacks in delamination degree cylinder together by allowing light aggregate concrete flow into several, after vibration certain hour, the concrete in each delamination degree cylinder is taken out respectively, clean out the light-weight aggregate in every layer concrete, dry to weight and weigh, with this, calculate concrete delamination degree again, although the method can test out more accurately concrete homogeneity before concrete is unhardened, but the method device is complicated, not portable, operating process is very loaded down with trivial details, concrete easily occurs to leak and spills in operation, in addition, the subordinate of gathering materials being positioned on different delamination degree cylinder interphases is difficult to define.Chinese patent 201210136478.8 has proposed a kind of method of testing of lightweight aggregate concrete homogeneity, and the method along cutting open perpendicular to the plane of the face of building, is got its section by lightweight aggregate concrete test specimen.Its section is adopted to picture, respectively the upper and lower two-part image input picture analysis software of section, calculate quantity and the area of upper and lower two-part lightweight aggregate.Analysis section lightweight aggregate distribution situation, judges concrete homogeneity with this, though that the method operates is fairly simple, but also need just can carry out after concrete hardening, cut concrete process workload open huge, and the device in the method is complicated, cost is high, is difficult for promoting.
In sum, academia and engineering circles are all quick in the urgent need to a kind of test, and result is accurate, concrete uniformity testing device easy and simple to handle, to be easy to popularization.
Summary of the invention
Technical problem to be solved in the utility model is the deficiency for above-mentioned existence, provides a kind of simple in structure, and test is quick, and result is accurate, concrete uniformity testing device easy and simple to handle, to be easy to popularization.
The utility model solves the technical scheme that its technical matters adopts:
A kind of homogeneity of concrete measurement mechanism, include a balance, balance comprises bearing, the balance bracket that can rotate around bearing, be fixed on the leveling nut at balance bracket two ends, balance bracket side is provided with rule and a transverse axis, on transverse axis, have one heavily to cut or polish jade with an emery wheel, heavily stone roller can move between transverse axis two ends, it is characterized in that: described balance bracket upper surface is provided with clip, barrel is installed in clip, barrel is rectangular box structure, the length of barrel is identical with the length of balance bracket, the center of balance bracket is aimed at the center of barrel, make barrel be distributed in the weight of balance bracket central point both sides identical, barrel is provided with cover.
In such scheme, on described balance bracket, be also provided with level meter.
In such scheme, the justified of described balance bracket, rule, transverse axis.
In such scheme, in the middle of described rule, scale is 0, from intermediate distance more away from scale larger.
In such scheme, in the middle of described heavily stone roller, indicate center line.
In such scheme, described balance bracket upper surface posts anti-slip rubber.
Main beneficial effect of the present utility model is:
Simple in structure, test is quick, and result is accurate, easy and simple to handle, be easy to promote, and has improved the efficiency of test and construction.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment one-piece construction figure
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the utility model embodiment material cylinder structure figure
In figure: 1-balance, 11-bearing, 12-balance bracket, 13-leveling nut, 14-rule, 15-transverse axis, 16-heavily cuts or polish jade with an emery wheel, 17-clip, 18-level meter, 2-barrel, 21-cover.
Embodiment
Below in conjunction with embodiment, to the utility model, embodiment is further described:
Concrete uniformity testing device as shown in Figure 1 to Figure 3 includes balance 1, balance 1 comprises bearing 11, the balance bracket 12 that can rotate around bearing, be fixed on the leveling nut 13 at balance bracket two ends, be fixed on rule 14 and the transverse axis 15 of balance bracket one side, balance bracket, rule and transverse axis three justified; On balance 1, be provided with barrel 2, barrel 2 is rectangular box structure, and the length of barrel 2 is identical with the length of balance bracket 12, and balance bracket 12 center is aimed at the center of barrel 2, makes barrel 2 be distributed in the weight of balance bracket 12 central point both sides identical; Scale in the middle of rule is 0, from 0 scale to both sides, equidistantly indicates respectively scale, has one heavily to cut or polish jade with an emery wheel 16 on transverse axis, heavily in the middle of stone roller, indicates center line, can between transverse axis two ends, move; In the middle of barrel 2, indicate center line, two ends are provided with cover 21; On balance bracket, be also provided with clip 17, barrel can be fixed on balance bracket, barrel is not moved in test process; On balance bracket, be also provided with level meter 18, when balance bracket is horizontal, the bubble in level meter is positioned at the mid point of level meter.
Utilize the step of the utility model test homogeneity of concrete as follows:
1) prepare concrete uniformity testing device (as mentioned above);
2) leveling of device:
By heavily cutting or polish jade with an emery wheel and move to transverse axis mid point, make heavily to cut or polish jade with an emery wheel center line and align with 0 scale of rule, barrel is disposed across on balance bracket, and make barrel center line align 1 with 0 scale of rule, with clip, barrel is fixed, the leveling nut at adjustment support two ends, makes balance bracket level;
3) concrete filling:
After leveling, barrel is taken off, vertically place, open the cover of barrel upper end, detected concrete is filled to the cover that closes after barrel;
4) test of homogeneity of concrete:
When detected concrete approaches initial set, the barrel of filling detected concrete is disposed across on balance bracket according to the orientation with identical in step 3), with clip, fix.If concrete is definitely even, concrete center should be at barrel mid point, now balance bracket should keep level, if there is layering in the component in concrete, concrete center of gravity will inevitably move to the more one end of the large component of density, and balance bracket also can tilt to the more one end of the large component of density, by mobile, heavily cuts or polish jade with an emery wheel to balance bracket recurrence level again, read and now heavily cut or polish jade with an emery wheel the scale L that center line points to, the less homogeneity of concrete of L is better.
Protection domain of the present utility model is not limited to above-described embodiment, and other technical scheme identical with the utility model essence all belongs to the scope of utility model protection.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not depart from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, intention of the present utility model also comprises these changes and is out of shape interior.
Claims (6)
1. a homogeneity of concrete measurement mechanism, include a balance, balance comprises bearing, the balance bracket that can rotate around bearing, be fixed on the leveling nut at balance bracket two ends, balance bracket side is provided with rule and a transverse axis, on transverse axis, have one heavily to cut or polish jade with an emery wheel, heavily stone roller can move between transverse axis two ends, it is characterized in that: described balance bracket upper surface is provided with clip, barrel is installed in clip, barrel is rectangular box structure, the length of barrel is identical with the length of balance bracket, the center of balance bracket is aimed at the center of barrel, make barrel be distributed in the weight of balance bracket central point both sides identical, barrel is provided with cover.
2. homogeneity of concrete measurement mechanism as claimed in claim 1, is characterized in that: on described balance bracket, be also provided with level meter.
3. homogeneity of concrete measurement mechanism as claimed in claim 1, is characterized in that: the justified of described balance bracket, rule, transverse axis.
4. homogeneity of concrete measurement mechanism as claimed in claim 1, is characterized in that: in the middle of described rule, scale is 0, from intermediate distance more away from scale larger.
5. homogeneity of concrete measurement mechanism as claimed in claim 1, is characterized in that: in the middle of described heavily stone roller, indicate center line.
6. homogeneity of concrete measurement mechanism as claimed in claim 1, is characterized in that: described balance bracket upper surface posts anti-slip rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782326.5U CN203587463U (en) | 2013-12-03 | 2013-12-03 | Device for testing uniformity of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782326.5U CN203587463U (en) | 2013-12-03 | 2013-12-03 | Device for testing uniformity of concrete |
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| Publication Number | Publication Date |
|---|---|
| CN203587463U true CN203587463U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320782326.5U Expired - Lifetime CN203587463U (en) | 2013-12-03 | 2013-12-03 | Device for testing uniformity of concrete |
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| Country | Link |
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| CN (1) | CN203587463U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018177A (en) * | 2016-07-19 | 2016-10-12 | 江苏苏博特新材料股份有限公司 | Quantitative concrete workability testing device and method |
| CN109115647A (en) * | 2018-09-30 | 2019-01-01 | 湖南鑫长胜材料科技有限公司 | A kind of method for real-timely testing of emulsified asphalt stability |
| CN109959604A (en) * | 2019-02-22 | 2019-07-02 | 重庆建工建材物流有限公司 | Haydite concrete delamination degree test device and method |
| CN110672455A (en) * | 2019-10-21 | 2020-01-10 | 武汉美好绿色建筑科技有限公司 | Self-compacting concrete homogeneity testing device and method |
| CN113109552A (en) * | 2021-04-25 | 2021-07-13 | 东南大学 | Concrete workability and uniformity testing device and method |
-
2013
- 2013-12-03 CN CN201320782326.5U patent/CN203587463U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018177A (en) * | 2016-07-19 | 2016-10-12 | 江苏苏博特新材料股份有限公司 | Quantitative concrete workability testing device and method |
| CN109115647A (en) * | 2018-09-30 | 2019-01-01 | 湖南鑫长胜材料科技有限公司 | A kind of method for real-timely testing of emulsified asphalt stability |
| CN109959604A (en) * | 2019-02-22 | 2019-07-02 | 重庆建工建材物流有限公司 | Haydite concrete delamination degree test device and method |
| CN109959604B (en) * | 2019-02-22 | 2024-05-31 | 重庆建工建材物流有限公司 | Device and method for testing layering degree of ceramsite concrete |
| CN110672455A (en) * | 2019-10-21 | 2020-01-10 | 武汉美好绿色建筑科技有限公司 | Self-compacting concrete homogeneity testing device and method |
| CN113109552A (en) * | 2021-04-25 | 2021-07-13 | 东南大学 | Concrete workability and uniformity testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HUBEI PROVINCIAL CENTER FOR QUALITY SUPERVISION AD TEST OF CONSTRUCTION ENGINEERING Assignor: CHINA STATE CONSTRUCTION READY MIXED CONCRETE Co.,Ltd. Contract record no.: 2015420000026 Denomination of utility model: Device for testing uniformity of concrete Granted publication date: 20140507 License type: Exclusive License Record date: 20150228 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
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| CX01 | Expiry of patent term |