CN203053818U - Measurement instrument for working property of self-compacting concrete - Google Patents
Measurement instrument for working property of self-compacting concrete Download PDFInfo
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- CN203053818U CN203053818U CN 201320059359 CN201320059359U CN203053818U CN 203053818 U CN203053818 U CN 203053818U CN 201320059359 CN201320059359 CN 201320059359 CN 201320059359 U CN201320059359 U CN 201320059359U CN 203053818 U CN203053818 U CN 203053818U
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Abstract
The utility model aims at providing a measurement instrument for the working property of self-compacting concrete. The measurement instrument comprises a vertical cylinder, a horizontal groove, a steel bar mesh, a discharge port, a movable sliding door, a pull handle and a groove, wherein the vertical cylinder and the horizontal groove are welded to form an integral structure; the bottom of the vertical cylinder is provided with the discharge port; the outer side of the vertical cylinder is provided with the groove; the movable sliding door is connected with the vertical cylinder through the groove, and the movable sliding door is provided with the pull handle; and the steel bar mesh is connected with the vertical cylinder. According to the utility model, the movable steel bar mesh provides the convenience for measuring the flowability and filling of the concrete mixture and the passability of a steel bar gap; and the measurement instrument provided by the utility model has the advantages of good integrity, simple structure, easiness and convenience for operation, convenience and practicability.
Description
Technical field
The utility model relates to a kind of self-compacting concrete serviceability measuring instrument.
Background technology
Self-compacting concrete (Self-Compacting Concrete, be called for short SCC) be a kind of can be without vibrating under the deadweight effect levelling and be full of model and wrap up the high performance concrete of reinforcing bar automatically, therefore the workability of concrete mix is had higher requirement.The workability specific strength of high performance concrete mixture is also important, is the key that guarantees concrete pouring quality.A kind of as in the high performance concrete of self-compacting concrete mainly is stressed that to have high workability, i.e. high fluidity, high fillibility, high reinforcing bar gap trafficability characteristic and education resistance.
The workability evaluation method of self-compacting concrete is different with normal concrete, and therefore, Chinese scholars adopts down slump cone, L type flow graph, U-shaped instrument, V-type instrument, Orimet instrument to detect the serviceability of self-compacting concrete respectively.Wherein, L type flow graph can be measured flowability, fillibility and the reinforcing bar gap trafficability characteristic of self-compacting concrete comparatively accurately.Some scholars transform L type flow graph at present, and as the patent No.: CN201159736Y, name is called: self-compacting concrete serviceability combined type evaluating apparatus; The patent No.: CN200979545Y, name is called: self-compacting concrete workability polymeter; The patent No.: CN101893538A, name is called: self-compacting concrete filling performance testing device.These measurement mechanisms are combined type, need on-the-spot assembling to be not easy to the operation of outdoor building site.Therefore, press at present and be applicable to the simple in structure, easy to use of laboratory and working-yard, and can accurately estimate the measurement mechanism of self-compacting concrete serviceability.
The utility model content
For overcoming above-mentioned the deficiencies in the prior art, the purpose of this utility model provides a kind of self-compacting concrete serviceability measuring instrument.
The purpose of this utility model is achieved in that a kind of self-compacting concrete serviceability measuring instrument, comprise vertical upright tube, level trough, bar-mat reinforcement, discharging opening, active pulling-door, handle and groove, vertical upright tube and the level trough structure that is welded as a whole, vertical upright tube bottom is provided with discharging opening, the vertical upright tube outside is provided with groove, active pulling-door is connected with vertical upright tube by groove, and active pulling-door is provided with handle, and bar-mat reinforcement is connected with vertical upright tube.
The utility model has the advantages that movable bar-mat reinforcement is that flowability, fillibility and the reinforcing bar gap trafficability characteristic of measuring concrete mix provided convenience, and the utility model good integrity, simple in structure, easy and simple to handle, convenient and practical.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
As shown in Figure 1, a kind of self-compacting concrete serviceability measuring instrument, comprise vertical upright tube 1, level trough 2, bar-mat reinforcement 3, discharging opening 4, active pulling-door 5, handle 6 and groove 7, vertical upright tube 1 and level trough 2 structure that is welded as a whole, vertical upright tube 1 bottom is provided with discharging opening 4, and vertical upright tube 1 outside is provided with groove 7, and active pulling-door 5 is connected with vertical upright tube 1 by groove 7, active pulling-door 5 is provided with handle 6, and bar-mat reinforcement 3 is connected with vertical upright tube 1.
When the flowability of use the utility model test concrete mix and fillibility, reinforcing bar is not placed at the active pulling-door place, after concrete filled upright tube, do not insert and smash, floating surface, mention active pulling-door, pick up counting simultaneously, measure t40 (concrete mix flow to the time at 40cm place), vertical upright tube slump H and the concrete difference in height Δ H of level trough head and the tail.The flowability of mixture can be estimated by t40, upright tube slump H and horizontal flow distance L, the fillibility of mixture can be judged by the shape of the difference in height Δ H of level trough head and the tail concrete mix and level trough inner concrete.The mix H/L that rheological property is good is about 0.3; For the concrete of self-compaction, then L should be greater than 800mm.When H value and L value are big, illustrate that fresh concrete mixture fillibility is good.When little the and L of H was big, mixture had the tendency of segregation; H is big and L hour, and then the mixture viscous resistance is very big, can not be from levelling.
When using the utility model to measure the reinforcing bar gap trafficability characteristic of concrete mix, reinforcing bar is placed at the active pulling-door place, after concrete was full of upright tube and opens active pulling-door, concrete flowed to horizontal component by bar-mat reinforcement from the bottom discharging opening, measured mixture flowing velocity V
d(when concrete mix flow to certain scale d time/distance flows), a upright tube slump H
0With the horizontal flow distance L
0V
dIn order to evaluate the rheological property of concrete mix, flowing velocity can be reacted reinforcing bar gap trafficability characteristic and the flowability of mixture accurately.V in the test
150Should be greater than 50mm/s (namely by the sands are running out in 3s), V
400Should be greater than 33mm/s (by the sands are running out in 12s), as be lower than this value, showing that then the viscous resistance of mixture is bigger, reinforcing bar gap trafficability characteristic is relatively poor, the requirement that does not reach self-compacting concrete.V
150During＞75mm/s, mixture has the tendency of segregation; V
150During＜50mm/s, then the mixture viscous resistance is very big.But use flowability, fillibility and the reinforcing bar gap trafficability characteristic of the utility model quantitative measurement mixture.
In example, self-compacting concrete is pressed the configuration of match ratio shown in the table 1, and the result is as shown in table 2 with the utility model measurement device self-compacting concrete serviceability, and is good through the serviceability of the utility model device self-compacting concrete that evaluation is joined.
Table 1 self-compacting concrete match ratio (unit: kg/m
3)
| Concrete material | Cement | Flyash | Sand | Stone | Water | Water reducer |
| Quality | 385 | 165 | 742 | 907 | 204 | 5 |
Table 2 self-compacting concrete workability
The utility model has the advantages that movable bar-mat reinforcement is that flowability, fillibility and the reinforcing bar gap trafficability characteristic of measuring concrete mix provided convenience, and the utility model good integrity, simple in structure, easy and simple to handle, convenient and practical.
Claims (1)
1. self-compacting concrete serviceability measuring instrument, comprise vertical upright tube (1), level trough (2), bar-mat reinforcement (3), discharging opening (4), active pulling-door (5), handle (6) and groove (7), it is characterized in that: vertical upright tube (1) and level trough (2) structure that is welded as a whole, vertical upright tube (1) bottom is provided with discharging opening (4), vertical upright tube (1) outside is provided with groove (7), active pulling-door (5) is connected with vertical upright tube (1) by groove (7), active pulling-door (5) is provided with handle (6), and bar-mat reinforcement (3) is connected with vertical upright tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059359 CN203053818U (en) | 2013-02-04 | 2013-02-04 | Measurement instrument for working property of self-compacting concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059359 CN203053818U (en) | 2013-02-04 | 2013-02-04 | Measurement instrument for working property of self-compacting concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203053818U true CN203053818U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059359 Expired - Fee Related CN203053818U (en) | 2013-02-04 | 2013-02-04 | Measurement instrument for working property of self-compacting concrete |
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| CN (1) | CN203053818U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360047A (en) * | 2014-11-20 | 2015-02-18 | 中国铁道科学研究院铁道建筑研究所 | Method and device for evaluating dynamic stability of self-compacting concrete of closed die cavity of plate-type ballastless track |
| CN104749349A (en) * | 2015-01-27 | 2015-07-01 | 天津大学 | Novel detachable L-shaped box |
| CN105181527A (en) * | 2015-09-21 | 2015-12-23 | 燕山大学 | Slump cone and method for testing working performance of self-compacting concrete |
| CN106769604A (en) * | 2016-12-30 | 2017-05-31 | 重庆建工建材物流有限公司 | 3D printing concrete material plastic accumulation high measure mould and method |
| CN108709978A (en) * | 2018-05-15 | 2018-10-26 | 中建西部建设湖南有限公司 | A kind of self-compacting concrete self-compacting ability comprehensive tester and its test method |
| CN108896442A (en) * | 2018-07-02 | 2018-11-27 | 北京工业大学 | A kind of test device and measurement method of concrete horizontal mobile performance |
| CN111157706A (en) * | 2020-01-18 | 2020-05-15 | 中铁二局第一工程有限公司 | Device for detecting working performance of concrete and using method thereof |
-
2013
- 2013-02-04 CN CN 201320059359 patent/CN203053818U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360047A (en) * | 2014-11-20 | 2015-02-18 | 中国铁道科学研究院铁道建筑研究所 | Method and device for evaluating dynamic stability of self-compacting concrete of closed die cavity of plate-type ballastless track |
| CN104360047B (en) * | 2014-11-20 | 2016-06-29 | 中国铁道科学研究院铁道建筑研究所 | A kind of plate-type ballastless track closes die cavity self-compacting concrete dynamic stability evaluation methodology and device |
| CN104749349A (en) * | 2015-01-27 | 2015-07-01 | 天津大学 | Novel detachable L-shaped box |
| CN105181527A (en) * | 2015-09-21 | 2015-12-23 | 燕山大学 | Slump cone and method for testing working performance of self-compacting concrete |
| CN106769604A (en) * | 2016-12-30 | 2017-05-31 | 重庆建工建材物流有限公司 | 3D printing concrete material plastic accumulation high measure mould and method |
| CN108709978A (en) * | 2018-05-15 | 2018-10-26 | 中建西部建设湖南有限公司 | A kind of self-compacting concrete self-compacting ability comprehensive tester and its test method |
| CN108709978B (en) * | 2018-05-15 | 2021-06-18 | 中建西部建设湖南有限公司 | Self-compacting concrete self-compacting performance comprehensive tester and testing method thereof |
| CN108896442A (en) * | 2018-07-02 | 2018-11-27 | 北京工业大学 | A kind of test device and measurement method of concrete horizontal mobile performance |
| CN108896442B (en) * | 2018-07-02 | 2021-04-09 | 北京工业大学 | Testing device and measuring method for horizontal flow performance of concrete |
| CN111157706A (en) * | 2020-01-18 | 2020-05-15 | 中铁二局第一工程有限公司 | Device for detecting working performance of concrete and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20150204 |
|
| EXPY | Termination of patent right or utility model |