CN204177696U - A kind of autodensing concrete almixture dynamic stability evaluating apparatus - Google Patents
A kind of autodensing concrete almixture dynamic stability evaluating apparatus Download PDFInfo
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- CN204177696U CN204177696U CN201420487808.2U CN201420487808U CN204177696U CN 204177696 U CN204177696 U CN 204177696U CN 201420487808 U CN201420487808 U CN 201420487808U CN 204177696 U CN204177696 U CN 204177696U
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- test container
- stability test
- stability
- evaluating apparatus
- dynamic stability
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Abstract
The utility model has about a kind of autodensing concrete almixture dynamic stability evaluating apparatus, its object is to provide a kind of actual close to concrete works, there is the autodensing concrete almixture dynamic stability evaluating apparatus that structure is simple, easy to operate, described device comprises base, stability test container and motor, fixed support block is provided with in the middle of described base, two ends are respectively equipped with movable supporting block, described stability test container is hinged and is connected in described fixed support block, and described motor connects described stability test container; The autodensing concrete almixture prepared is put into described stability test container, open motor, make described stability container tilted upward mix, after a period of time, the taking-up of the mixture of described stability test container two ends equivalent is sieved, cleaned, after removing slurry and fine grained, is weighed as M respectively
1and M
2, pass through
calculate dynamic stability index D S, numerical value is larger, illustrates that dynamic stability is poorer.
Description
Technical field
The utility model relates to concrete mixture characteristic assessment technique field, particularly a kind of autodensing concrete almixture dynamic stability evaluating apparatus testing concrete material performance.
Background technology
Concrete mix is made up of the material of different densities and size, and the cohesive strength between composition material is not enough to opposing coarse aggregate and sinks, and composition is separated from each other, and affects workability, causes inner the Nomenclature Composition and Structure of Complexes uneven, the security of havoc structure.Self-compacting concrete requires that fillibility, education resistance and gap are high by property, and thus mobility is large, and each component produces the tendency be separated and increases.The dynamic stability of autodensing concrete almixture weighs the important indicator of serviceability quality.Before construction, evaluate the dynamic stability of mixture objectively, so that revise Mix Proportion early, reduce the harm that dynamic instability brings.Through years development, achieve very much progress in the research of concrete mix stability test both at home and abroad, but unified evaluation means is not formed yet for autodensing concrete almixture dynamic stability test aspect.
Through finding the literature search of existing concrete estimation of stability device, Chinese utility model patent " autodensing concrete almixture estimation of stability device " (CN201016975Y), which disclose a kind of autodensing concrete almixture estimation of stability device, this device is mainly made up of jumping table and Detection of Stability cylinder, simulate the dynamic of mixture by the up-down vibration of jumping table, exist and the problem do not conformed to that flows during self-compact concrete in construction.
Utility model content
The utility model provides a kind of actual close to concrete works, has the autodensing concrete almixture dynamic stability evaluating apparatus that structure is simple, easy to operate.
For reaching above-mentioned purpose, a kind of autodensing concrete almixture dynamic stability of the utility model evaluating apparatus, described device comprises base, stability test container and motor, fixed support block is provided with in the middle of described base, two ends are respectively equipped with movable supporting block, described stability test container is hinged and is connected in described fixed support block, and described motor connects described stability test container.
Wherein said fixed support block is triangle fixed support block, and top pointed part and described stability test container are hinged.
Wherein said movable supporting tile height is identical and identical apart from described substructure height with described stability test vessel level state lower bottom part.
Wherein said motor is connected with described stability test container by connecting rod.
Wherein said motor is back-geared motor.
Wherein said stability test container is rectangle rustless steel container.
The inwall of wherein said stability test container has inorganic coating.
(1) the container construction simulation interface of the utility model inorganic coating, autodensing concrete almixture in a reservoir tilted upward simulation mixture flows on construction interface, evaluate close to practice of construction condition, overcome the deficiency existed in autodensing concrete almixture estimation of stability;
(2) the utility model evaluating apparatus structure is simple, easy and simple to handle, evaluates the stability of slurry before construction objectively, to revise the proportioning of slurry early, reduces the harm that dynamic instability brings, has wide market outlook;
(3) the utility model can record autodensing concrete almixture dynamically under stability index, make autodensing concrete almixture performance evaluation more comprehensively, reliable.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model autodensing concrete almixture dynamic stability evaluating apparatus.
Description of reference numerals: 1-base, 2-movable supporting block, 3-stability test container, 4-connecting rod, the back-geared motor of 5-; 6-fixed support block.
Embodiment
Below in conjunction with drawings and Examples, the technical characteristic of the above-mentioned a kind of autodensing concrete almixture estimation of stability device of the utility model and advantage are described in more detail.
Shown in Figure 1, a kind of autodensing concrete almixture estimation of stability device, forms primarily of the movable supporting block 2 at base 1, fixed support block 6, two ends, stability test container 3, connecting rod 4 and back-geared motor 5.Leg-of-mutton fixed support block 6 is fixed in the middle part of base 1, is hinged bottom pointed tip and stability test container 3; Stability test container 3 is rectangle rustless steel containers, the inwall of container has inorganic coating, base 1 two ends have movable supporting block 2 respectively, two movable supporting blocks 2 are highly identical and identical to the height of base with stability test container 3 horizontality bottom surface, and stability test container 3 is connected with back-geared motor 5 by connecting rod 4.
During use, first prepare the self-compacting concrete of certain volume, base 1 adjusts to level, two movable supporting blocks 2 are moved into the two ends of stability test container 3, regulate the height of movable supporting block 2, stability test container 3 is made to be in level, the self-compacting concrete sample prepared is loaded in stability test container 3, remove movable supporting block 2, starter motor 5 power supply, under connecting rod 4 drives, stability test container 3 moved up and down with two seconds cycles, after 5 minutes, disable motor 5 power supply, move into movable supporting block 2, and regulate the height of movable supporting block 2, stability test container 3 is made to be in level, then respectively stability test container 3 two ends equivalent mixture being loaded aperture is in the circular hole sieve of 5mm, mixture is rinsed with clear water, screen out slurry and fine grained, by the free water removing of remaining coarse aggregate surface, its mass M is claimed with electronic balance
1and M
2, be accurate to 0.1 gram, by calculating corresponding autodensing concrete almixture dynamic stability evaluation index---dynamic stability index D S,
Numerical value is larger, illustrates that dynamic stability is poorer, and General Requirements autodensing concrete almixture dynamic stability index D S is less than or equal to 20%.
Embodiment one:
Self-compacting concrete is prepared: cement 372g by following component; Flyash 132g; Silicon ash 12g; No. 1 sandstone 1200g; No. 2 sandstone 90g; No. 3 sandstone 828g; Water reducer 6g; Swelling agent 18g; Water 204g; Self-compacting concrete is formed after each component stirs in stirring machine.Base 1 is adjusted to level, two movable supporting blocks 2 are moved into the two ends of stability test container 3, regulate the height of movable supporting block 2, stability test container 3 is made to be in level, and the self-compacting concrete sample prepared is loaded in stability test container 3, remove movable supporting block 2, starter motor 5 power supply, under connecting rod 4 drives, stability test container 3 moved up and down with two seconds cycles, after 5 minutes, disable motor 5 power supply, move into movable supporting block 2, and regulate the height of movable supporting block 2, stability test container 3 is made to be in level, the mixture loading aperture of then getting respectively apart from stability test container 3 two ends 200mm is in the circular hole sieve of 5mm, mixture is rinsed with clear water, screen out slurry and fine grained, by the free water removing of remaining coarse aggregate surface, divide another name its quality with electronic balance, M
1for 616.1g, other end coarse aggregate mass M
2for 524.8g, calculating this autodensing concrete almixture dynamic stability evaluation number DS by (1) formula is 16%.
Embodiment two:
Self-compacting concrete is prepared: cement 408g by following component; Flyash 145g; Silicon ash 15g; No. 1 sandstone 1200g; No. 2 sandstone 90g; No. 3 sandstone 816g; Water reducer 9.5g; Swelling agent 18g; Water 186g; Self-compacting concrete is formed after each component stirs in stirring machine.Base 1 is adjusted to level, two ends movable supporting block 2 is moved into the two ends of stability test container 3, regulate the height of movable supporting block 2, stability test container 3 is made to be in level, the self-compacting concrete sample prepared is loaded in stability test container 3, remove movable supporting block 2, starter motor 5 power supply, under connecting rod 4 drives, stability test container 3 moved up and down with two seconds cycles, after 5 minutes, disable motor 5 power supply, move into movable supporting block 2, and regulate the height of movable supporting block 2, stability test container 3 is made to be in level, the mixture loading aperture of then getting respectively apart from stability test container 3 two ends 200mm is in the circular hole sieve of 5mm, mixture is rinsed with clear water, screen out slurry and fine grained, by the free water removing of remaining coarse aggregate surface, divide another name its quality with electronic balance, M
1for 588.9g, other end coarse aggregate mass M
2for 564.2g, calculating this autodensing concrete almixture dynamic stability evaluation number DS by (1) formula is 5%.
Embodiment three:
Self-compacting concrete is prepared: cement 372g by following component; Flyash 132g; Silicon ash 12g; No. 1 sandstone 1200g; No. 2 sandstone 0g; No. 3 sandstone 912g; Water reducer 5.5g; Swelling agent 18g; Water 204g; Self-compacting concrete is formed after each component stirs in stirring machine.Base 1 is adjusted to level, the movable supporting block 2 at two ends is moved into the two ends of stability test container 3, regulate the height of movable supporting block 2, stability test container 3 is made to be in level, and the self-compacting concrete sample prepared is loaded in stability test container 3, remove movable supporting block 2, starter motor 5 power supply, under connecting rod 4 drives, stability test container 3 moved up and down with two seconds cycles, after 5 minutes, disable motor 5 power supply, move into movable supporting block 2, and regulate the height of movable supporting block 2, stability test container 3 is made to be in level, the mixture loading aperture of then getting respectively apart from stability test container 3 two ends 200mm is in the circular hole sieve of 5mm, mixture is rinsed with clear water, screen out slurry and fine grained, by the free water removing of remaining coarse aggregate surface, divide another name its quality with electronic balance, M
1for 619.8g, other end coarse aggregate mass M
2for 515.6g, calculating this autodensing concrete almixture dynamic stability evaluation number DS by (1) formula is 19%.
Embodiment four:
Self-compacting concrete is prepared: cement 372g by following component; Flyash 132g; Silicon ash 12g; No. 1 sandstone 1200g; No. 2 sandstone 0g; No. 3 sandstone 0g; No. 4 sandstone 912g; Water reducer 5.5g; Swelling agent 18g; Water 205g; Self-compacting concrete is formed after each component stirs in stirring machine.Base 1 is adjusted to level, two ends movable supporting block 2 is moved into the two ends of stability test container 3, regulate the height of movable supporting block 2, stability test container 3 is made to be in level, and the self-compacting concrete sample prepared is loaded in stability test container 3, remove movable supporting block 2, starter motor 5 power supply, under connecting rod 4 drives, stability test container 3 moved up and down with two seconds cycles, after 5 minutes, disable motor 5 power supply, move into movable supporting block 2, and regulate the height of movable supporting block 2, stability test container 3 is made to be in level, the mixture loading aperture of then getting respectively apart from stability test container 3 two ends 200mm is in the circular hole sieve of 5mm, mixture is rinsed with clear water, screen out slurry and fine grained, by the free water removing of remaining coarse aggregate surface, divide another name its quality with electronic balance, M
1for 785.1g, other end coarse aggregate mass M
2for 550.6g, calculating this autodensing concrete almixture dynamic stability evaluation number DS by (1) formula is 36%.
Above-described embodiment is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite not departing from the utility model design spirit; the various distortion that those of ordinary skill in the art make the technical solution of the utility model and improvement, all should fall in protection domain that the utility model claims determine.
Claims (7)
1. an autodensing concrete almixture dynamic stability evaluating apparatus, it is characterized in that: described device comprises base, stability test container and motor, fixed support block is provided with in the middle of described base, two ends are respectively equipped with movable supporting block, described stability test container is hinged and is connected in described fixed support block, and described motor connects described stability test container.
2. autodensing concrete almixture dynamic stability evaluating apparatus as claimed in claim 1, it is characterized in that: described fixed support block is triangle fixed support block, top pointed part and described stability test container are hinged.
3. autodensing concrete almixture dynamic stability evaluating apparatus as claimed in claim 1, is characterized in that: described movable supporting tile height is identical and identical apart from described substructure height with described stability test vessel level state lower bottom part.
4. autodensing concrete almixture dynamic stability evaluating apparatus as claimed in claim 1, is characterized in that: described motor is connected with described stability test container by connecting rod.
5. autodensing concrete almixture dynamic stability evaluating apparatus as claimed in claim 1, is characterized in that: described motor is back-geared motor.
6. autodensing concrete almixture dynamic stability evaluating apparatus as claimed in claim 1, is characterized in that: described stability test container is rectangle rustless steel container.
7. autodensing concrete almixture dynamic stability evaluating apparatus as claimed in claim 1, is characterized in that: the inwall of described stability test container has inorganic coating.
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|---|---|---|---|
| CN201420487808.2U CN204177696U (en) | 2014-08-27 | 2014-08-27 | A kind of autodensing concrete almixture dynamic stability evaluating apparatus |
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| CN201420487808.2U CN204177696U (en) | 2014-08-27 | 2014-08-27 | A kind of autodensing concrete almixture dynamic stability evaluating apparatus |
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| CN204177696U true CN204177696U (en) | 2015-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181069A (en) * | 2014-08-27 | 2014-12-03 | 西南石油大学 | Device and method for evaluating dynamic stability of self-compacting concrete mixture |
-
2014
- 2014-08-27 CN CN201420487808.2U patent/CN204177696U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104181069A (en) * | 2014-08-27 | 2014-12-03 | 西南石油大学 | Device and method for evaluating dynamic stability of self-compacting concrete mixture |
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|---|---|---|---|
| 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: 20150225 Termination date: 20150827 |
|
| EXPY | Termination of patent right or utility model |