CN220752132U - Automatic-compaction concrete horizontal anti-segregation characteristic rapid measurement auxiliary device - Google Patents
Automatic-compaction concrete horizontal anti-segregation characteristic rapid measurement auxiliary device Download PDFInfo
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- CN220752132U CN220752132U CN202321782642.2U CN202321782642U CN220752132U CN 220752132 U CN220752132 U CN 220752132U CN 202321782642 U CN202321782642 U CN 202321782642U CN 220752132 U CN220752132 U CN 220752132U
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- 238000005204 segregation Methods 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 title claims abstract description 18
- 239000004567 concrete Substances 0.000 title abstract description 31
- 238000005056 compaction Methods 0.000 title description 2
- 239000011376 self-consolidating concrete Substances 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000035515 penetration Effects 0.000 abstract description 14
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 3
- 239000002245 particle Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a rapid measurement auxiliary device for anti-segregation characteristics of self-compacting concrete in the horizontal direction, which comprises a die, wherein the die is provided with a vertical cavity and a horizontal cavity which are communicated in space; a pass-through component is arranged between the vertical cavity and the horizontal cavity in a matching way; and a measuring mechanism is arranged in cooperation with the die. The utility model can rapidly measure and obtain the penetration depth and the mass variance of the self-compacting concrete in the horizontal direction, and can judge the horizontal segregation resistance of the concrete by only measuring the penetration depth; the measuring tool for the penetration test is simple and convenient, and the measuring efficiency is high; the diameter and the interval of the steel bars can be adjusted, and the method is suitable for measuring the concrete performances of different coarse aggregate particle sizes and different water-cement ratios.
Description
Technical Field
The utility model belongs to the technical field of testing or analyzing materials by means of measuring chemical or physical properties of the materials, and particularly relates to a rapid measurement auxiliary device for anti-segregation characteristics of self-compacting concrete in the horizontal direction.
Background
Concrete segregation is a phenomenon in which cohesion between constituent materials of concrete mixture is insufficient to resist coarse aggregate subsidence and concrete mixture components are separated from each other to cause non-uniformity of internal composition and structure, and is generally expressed as that coarse aggregate and mortar are separated from each other. The segregation of the concrete can influence the pumping construction performance of the concrete, reduce the economic benefit, influence the apparent effect of the concrete structure, greatly reduce the strength of the concrete, seriously influence the safety, and greatly reduce the durability of the concrete such as impermeability, frost resistance and the like.
Considering the danger of concrete segregation, segregation resistance plays an important role in the stress performance of self-compacting concrete, because poor segregation resistance will result in poor concrete deformability, blocking around the reinforcing bars, high drying shrinkage, uneven compressive strength, and the like.
Based on this, the measurement and evaluation of the self-compacting concrete segregation resistance is of great importance, and the direction of the self-compacting concrete segregation resistance should be distinguished, and the measurement of the segregation resistance in the horizontal direction is more difficult due to the special physical properties of the concrete; in the prior art, an auxiliary device for directly measuring the anti-segregation characteristic in the horizontal direction is not available, the measurement is generally completed by equipment after sampling, the equipment is used for assisting, the equipment is difficult to directly apply on site, the construction process is further influenced, and the working efficiency is lower.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides the auxiliary device for rapidly measuring the segregation resistance of the self-compacting concrete in the horizontal direction.
In order to achieve the technical aim, the utility model adopts the following technical scheme that the device comprises a mould, wherein the mould is provided with a vertical cavity and a horizontal cavity which are communicated with each other in space; a pass-through component is arranged between the vertical cavity and the horizontal cavity in a matching way; and a measuring mechanism is arranged in cooperation with the die.
Preferably, the die is an L-shaped die, a vertical cavity of the L-shaped die is communicated with a horizontal cavity space, and a feed inlet is formed in the top of the vertical cavity.
Preferably, the pass-through assembly includes a vertical gate extending vertically through an end of the horizontal cavity.
Preferably, a reinforcing mesh is further arranged on one side, facing the horizontal cavity, of the vertical gate.
Preferably, the vertical gate is attached to a side wall of the vertical cavity facing the horizontal cavity.
Preferably, the outside of cooperation horizontal cavity is equipped with the horizontal scale, 0 scale and the through subassembly cooperation setting of horizontal scale.
Preferably, a protective end plate is arranged at one end of the horizontal cavity, which is away from the vertical cavity.
Preferably, the measuring mechanism comprises a bearing surface, a bracket is arranged at the bottom of the bearing surface, one or more through holes are formed in the bearing surface, and a vertical rod is detachably arranged in the bearing surface and matched with any through hole.
Preferably, a vertical scale is arranged on the bearing surface matched with the vertical rod.
Preferably, the bearing surface matched with the through hole is provided with a through pipeline.
The utility model provides a rapid measurement auxiliary device for anti-segregation characteristics of self-compacting concrete in the horizontal direction, which comprises a die, wherein the die is provided with a vertical cavity and a horizontal cavity which are communicated in space; a pass-through component is arranged between the vertical cavity and the horizontal cavity in a matching way; and a measuring mechanism is arranged in cooperation with the die.
The utility model has the beneficial effects that:
(1) The penetration depth and the mass variance of the self-compacting concrete in the horizontal direction can be measured and obtained rapidly, so that the horizontal segregation resistance of the concrete can be judged by measuring the penetration depth only;
(2) The measuring tool for the penetration test is simple and convenient, and the measuring efficiency is high;
(3) The diameter and the interval of the steel bars can be adjusted, and the method is suitable for measuring the concrete performances of different coarse aggregate particle sizes and different water-cement ratios.
Drawings
FIG. 1 is a schematic view of a mold according to the present utility model;
FIG. 2 is a schematic diagram of the measuring mechanism of the present utility model;
FIG. 3 is a schematic cross-sectional view of the cooperation of the die and the measuring mechanism of the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model relates to a rapid measurement auxiliary device for anti-segregation characteristics of self-compacting concrete in the horizontal direction, which comprises a die, wherein the die is provided with a vertical cavity 1 and a horizontal cavity 2 which are communicated in space; a passing component is arranged between the vertical cavity 1 and the horizontal cavity 2 in a matching way; and a measuring mechanism is arranged in cooperation with the die.
According to the utility model, the vertical cavity 1 is matched with the measuring mechanism to quickly obtain the penetration depth of the self-compacting concrete in the horizontal direction, and the vertical cavity 1 is matched with the horizontal cavity 2 to quickly obtain the mass variance of the concrete penetrated in the horizontal direction, so that the horizontal segregation resistance of the concrete can be judged by measuring the penetration depth.
The die is an L-shaped die, a vertical cavity 1 of the L-shaped die is communicated with a horizontal cavity 2 in space, and a feeding hole 3 is formed in the top of the vertical cavity 1.
The pass-through assembly comprises a vertical gate 4 vertically penetrating the end of the horizontal cavity 2.
The vertical gate 4 is also provided with a reinforcing mesh 5 towards the side of the horizontal cavity 2.
The vertical gate 4 is attached to the side wall of the vertical cavity 1 facing the horizontal cavity 2.
A horizontal scale (not shown in the figure) is arranged on the outer side of the horizontal cavity 2 in a matching way, and the 0 scale of the horizontal scale is matched with the passing component.
The end of the horizontal cavity 2 facing away from the vertical cavity 1 is provided with a protective end plate 6.
According to the utility model, the top material inlet 3 of the vertical cavity 1 of the L-shaped mold is filled, in an initial state, the assembly is closed, the penetration depth is stabilized and measured, then the assembly is opened, and concrete enters the horizontal cavity 2 through the assembly; in practical implementation, the whole assembly is controlled by a vertical gate 4, and the test of concrete performances with different coarse aggregate particle sizes and different water-cement ratios is completed by a reinforcing mesh 5 facing one side of the horizontal cavity 2, and the test can be realized by adjusting the diameters and mutual distances of the reinforcing bars of the reinforcing mesh 5; a protective end plate 6 is arranged at one end of the horizontal cavity 2, which is away from the vertical cavity 1, so as to prevent concrete from overflowing.
In the present utility model, in order to secure a better effect, the vertical shutter 4 is attached to the side wall of the vertical cavity 1 facing the horizontal cavity 2.
In the utility model, as the concrete in the horizontal cavity 2 is required to be divided in the subsequent treatment, a horizontal scale (not shown in the figure) is arranged on the outer side of the horizontal cavity 2, so that the operation control is convenient; the horizontal scale herein may be a pull tape, which may be set by one skilled in the art on his own, as desired.
The measuring mechanism comprises a bearing surface 7, a bracket 8 is arranged at the bottom of the bearing surface 7 in a matching manner, one or more through holes 9 are formed in the bearing surface 7, and a vertical rod 10 is detachably arranged in the matching manner with any through hole 9.
A vertical scale 11 is arranged on the bearing surface 7 matched with the vertical rod 10.
The carrying surface 7 matching the through hole 9 is provided with a through pipe 12.
In the utility model, a bracket 8 at the bottom of a bearing surface 7 is erected at the top of a vertical cavity 1, a vertical rod 10 falls down from a through hole 9 of the bearing surface 7 and is matched with a vertical scale 11 to finish the measurement of penetration depth.
In the utility model, in order to ensure the accuracy of measured data, a through pipeline 12 is arranged on the bearing surface 7 outside the through hole 9, so that the vertical rod 10 is ensured not to be skewed in the measuring process; at this time, the vertical scale 11 is disposed on top of the passing pipe 12.
Examples of applications of the device are given below:
opening the top of the L-shaped die, closing the passing assembly, pouring the mixture from the top of the vertical cavity 1 of the L-shaped die, immediately leveling the top of the poured concrete without consolidation, and measuring the penetration depth by a measuring mechanism after stabilization;
opening the pass-through assembly, and allowing the concrete to pass through the reinforcing mesh 5;
after the concrete stops flowing, filling the concrete passing through the reinforcing mesh 5 into a cylindrical mold, and filling the concrete at the bottom of the vertical cavity 1 of the L-shaped mold into the same cylindrical mold; respectively cleaning concrete in the cylindrical mould, reserving coarse aggregate, airing and weighing; calculating the average aggregate mass and the variance of the two groups of aggregate masses in the mixing proportion, wherein if the aggregate mass is smaller than 10%, the horizontal segregation resistance of the concrete meets the requirement, otherwise, the horizontal segregation resistance does not meet the requirement; and recording the corresponding relation between the penetration depth and the quality variance, obtaining the optimal penetration depth range meeting the requirement that the quality variance is less than 10%, and evaluating the segregation resistance of the concrete in the horizontal direction by continuously testing the penetration depth.
The present embodiment is only illustrative of the present utility model and not intended to limit the present utility model, and modifications thereof should be considered to be within the scope of the present utility model as would be apparent to those skilled in the art.
Claims (9)
1. An auxiliary device for rapidly measuring anti-segregation characteristics of self-compacting concrete in the horizontal direction is characterized in that: the device comprises a die, wherein the die is provided with a vertical cavity and a horizontal cavity which are communicated in space; a pass-through component is arranged between the vertical cavity and the horizontal cavity in a matching way; a measuring mechanism is arranged in cooperation with the die; the measuring mechanism comprises a bearing surface, a bracket is arranged at the bottom of the bearing surface in a matched manner, one or more through holes are formed in the bearing surface, and a vertical rod is detachably arranged in the matched manner in any through hole.
2. The rapid measurement assisting device for the segregation resistance in the horizontal direction of self-compacting concrete according to claim 1, wherein: the die is an L-shaped die, a vertical cavity of the L-shaped die is communicated with a horizontal cavity space, and a feeding hole is formed in the top of the vertical cavity.
3. The rapid measurement assisting device for the segregation resistance in the horizontal direction of self-compacting concrete according to claim 2, wherein: the pass-through assembly comprises a vertical gate vertically penetrating through the end part of the horizontal cavity.
4. A self-compacting concrete horizontal direction segregation resistance characteristic rapid measurement auxiliary device according to claim 3, characterized in that: and a reinforcing mesh is further arranged on one side, facing the horizontal cavity, of the vertical gate.
5. A self-compacting concrete horizontal direction segregation resistance characteristic rapid measurement auxiliary device according to claim 3, characterized in that: the vertical gate is attached to the side wall of the vertical cavity, which faces the horizontal cavity.
6. The rapid measurement assisting device for the segregation resistance in the horizontal direction of self-compacting concrete according to claim 2, wherein: the cooperation the horizontal cavity outside is equipped with the horizontal scale, 0 scale and the through subassembly cooperation setting of horizontal scale.
7. The rapid measurement assisting device for the segregation resistance in the horizontal direction of self-compacting concrete according to claim 2, wherein: and a protective end plate is arranged at one end of the horizontal cavity, which is opposite to the vertical cavity.
8. The rapid measurement assisting device for the segregation resistance in the horizontal direction of self-compacting concrete according to claim 1, wherein: and a vertical scale is arranged on the bearing surface matched with the vertical rod.
9. The rapid measurement assisting device for the segregation resistance in the horizontal direction of self-compacting concrete according to claim 1, wherein: and a through pipeline is arranged on the bearing surface matched with the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321782642.2U CN220752132U (en) | 2023-07-08 | 2023-07-08 | Automatic-compaction concrete horizontal anti-segregation characteristic rapid measurement auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321782642.2U CN220752132U (en) | 2023-07-08 | 2023-07-08 | Automatic-compaction concrete horizontal anti-segregation characteristic rapid measurement auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220752132U true CN220752132U (en) | 2024-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321782642.2U Active CN220752132U (en) | 2023-07-08 | 2023-07-08 | Automatic-compaction concrete horizontal anti-segregation characteristic rapid measurement auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220752132U (en) |
-
2023
- 2023-07-08 CN CN202321782642.2U patent/CN220752132U/en active Active
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