CN217332462U

CN217332462U - Underwater undispersed concrete performance testing device

Info

Publication number: CN217332462U
Application number: CN202123303747.9U
Authority: CN
Inventors: 裴岩; 侯敏; 任龙芳; 王正; 高超; 贺阳; 程晓来; 关青锋; 方喜生; 周郅人; 朱逸飞
Original assignee: China Road and Bridge Corp
Current assignee: China Road and Bridge Corp
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-08-30
Anticipated expiration: 2031-12-24

Abstract

The utility model relates to a concrete performance test technical field especially relates to a concrete performance test device does not disperse under water, include: the test box comprises an accommodating space, wherein one end of the accommodating space is provided with a water inlet, and the other end of the accommodating space is provided with a water outlet; the water pump is communicated with the water inlet and pumps water in the test box; the basket is placed in the test box, and underwater undispersed concrete is arranged in the basket; the hydrological current meter detects the flow velocity of water flow in the test box; the water pump comprises a plurality of working powers, the flow velocities of water flows in the test chamber are different under different working powers, the bottom of the test chamber at least comprises a horizontal plane, and the horizontal plane is larger than the area of the slump barrel. The utility model discloses in, lie in during the detection and move under the aquatic environment, move the anti dispersion performance test under the aquatic condition and just laminate the construction environment of actual engineering more, for the construction of not dispersive concrete under water provides more powerful theoretical foundation, impel the development of not dispersive concrete under water.

Description

Underwater undispersed concrete performance testing device

Technical Field

The utility model relates to a concrete performance test technical field especially relates to a concrete performance test device does not disperse under water.

Background

Most of flocculants developed in China are in still water environments, and national relevant specifications are also based on the still water environments, so that the test environment for testing the fluidity, the anti-dispersion property and the mechanical property of underwater undispersed concrete is usually different from that in the actual construction process.

The slump and the slump expansion are used as indexes for testing the fluidity of the underwater non-dispersible concrete, the tests are carried out on land, the tests on the dispersion resistance and the mechanical property of the underwater non-dispersible concrete are carried out in a still water environment, in actual construction, water often flows, the test on the dispersion resistance under the dynamic water condition is more suitable for the construction environment of actual engineering, a powerful theoretical basis is provided for the construction of the underwater non-dispersible concrete, and the development of the underwater non-dispersible concrete is promoted.

In view of the above problems, the designer is based on the practical experience and professional knowledge that are abundant for many years in engineering application of such products, and is actively researched and innovated in cooperation with the application of scholars, so as to create a device for testing the performance of underwater non-dispersive concrete, and the device is more practical.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a do not disperse concrete capability test device under water to effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an underwater undispersed concrete performance testing device, comprising:

the test box comprises an accommodating space, wherein one end of the accommodating space is provided with a water inlet, and the other end of the accommodating space is provided with a water outlet;

the water pump is communicated with the water inlet and pumps water in the test box;

the basket is placed in the test box, and underwater undispersed concrete is arranged in the basket;

the hydrological current meter detects the flow velocity of water flow in the test chamber;

the water pump comprises a plurality of working powers, the flow velocities of water flows in the test box are different under different working powers, the bottom of the test box at least comprises a horizontal plane, and the horizontal plane is larger than the area of the collapse barrel.

Furthermore, a partition plate is arranged at one end, close to the water inlet, of the test box, two ends of the partition plate are connected with two ends, parallel to the water flow direction, of the test box, and the height of the partition plate is smaller than that of the test box.

Further, the height of the partition plate is greater than half of the height of the test chamber.

Further, at least one gap is formed between the partition board and the water inlet.

Furthermore, two bayonets are arranged at two ends, parallel to the water flow direction, in the test box, the two bayonets are vertically arranged, and two ends of the partition board are inserted into the two bayonets along the vertical direction.

Further, a base plate is arranged between the water inlet and the water outlet and used for placing the collapse barrel.

Further, the basket is of a cubic structure, and the height of the basket is smaller than that of the test box.

Furthermore, the side wall and the bottom of the basket are of a grid structure.

Further, the test chamber is a transparent structure.

The utility model has the advantages that: the utility model is provided with a test box, a water pump, a basket and a hydrographic velocity meter, wherein the water pump pumps water in the test box, water flow enters from a water inlet and is discharged from a water outlet to simulate the dynamic water environment during actual construction, the hydrographic velocity meter detects the flow velocity of the water flow and can adjust the power of the water pump, thereby testing under different flow velocities, newly-mixed underwater undispersed concrete is arranged in the basket, the basket is placed in the test box and is washed by the water flow to test the washing loss quality, the bottom of the test box at least comprises a horizontal plane, the horizontal plane is larger than the area of a collapse barrel, the collapse amount of the underwater undispersed concrete can be detected, and the test is positioned under the dynamic water environment during detection, the anti-dispersion performance test under the dynamic water condition is more fit with the construction environment of the actual engineering, a more powerful theoretical foundation is provided for the construction of the underwater undispersed concrete, promoting the development of concrete which is not dispersed underwater.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the structure of the test chamber;

fig. 3 is a top view of the test chamber.

Reference numerals: 1. a test chamber; 11. a water inlet; 12. a water outlet; 13. a partition plate; 14. a bayonet; 15. a backing plate; 2. a water pump; 3. a basket; 4. hydrographic current meter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3: an underwater undispersed concrete performance testing device, comprising:

the test box 1 comprises an accommodating space in the test box 1, wherein one end of the accommodating space is provided with a water inlet 11, and the other end of the accommodating space is provided with a water outlet 12;

the water pump 2 is communicated with the water inlet 11, and pumps water in the test box 1;

the basket 3 is placed in the test box 1, and the basket 3 is filled with underwater undispersed concrete;

the hydrographic flow velocity meter 4 is used for detecting the flow velocity of water flow in the test box 1;

the water pump 2 comprises a plurality of working powers, the flow velocities of water flows in the test box 1 are different under different working powers, the bottom of the test box 1 at least comprises a horizontal plane, and the horizontal plane is larger than the area of the collapse barrel.

Through arranging the test box 1, the water pump 2, the basket 3 and the hydrographic velocity meter 4, the water pump 2 pumps water in the test box 1, water flow enters from the water inlet 11 and is discharged from the water outlet 12 to simulate the dynamic water environment during actual construction, the hydrographic velocity meter 4 detects the flow velocity of the water flow and can adjust the power of the water pump 2, so that the test can be carried out at different flow velocities, newly mixed underwater undispersed concrete is arranged in the basket 3, the basket 3 is arranged in the test box 1, the scouring loss quality of the test can be tested through water scouring, the bottom of the test box 1 at least comprises a horizontal plane, the horizontal plane is larger than the area of a slump bucket, the slump of the underwater undispersed concrete can also be detected, and the test is positioned in the dynamic water environment during detection, the anti-dispersion performance test under the dynamic water condition is more suitable for the construction environment of actual engineering, provides a more powerful theoretical basis for the construction of underwater non-dispersive concrete and promotes the development of the underwater non-dispersive concrete.

In this embodiment, the test chamber 1 is provided with a partition plate 13 at one end close to the water inlet 11, two ends of the partition plate 13 are connected with two ends of the test chamber 1 parallel to the water flow direction, and the height of the partition plate 13 is less than that of the test chamber 1.

Because water inlet 11 is gone into by water pump 2, so in the place that is close to water inlet 11, the velocity of water flow is very fast, and keep away from the place of water inlet 11, the velocity of water flow is slow, can lead to the test result inaccurate, through set up baffle 13 in proof box 1, baffle 13 both ends are connected with the both ends that proof box 1 is on a parallel with the rivers direction, baffle 13 highly is less than 1 height of proof box, thereby the rivers of water inlet 11 get into behind the proof box 1, can receive baffle 13's block earlier, after the height that rivers exceed baffle 13, just can spill over from baffle 13 top, and flow to the direction that is close to delivery port 12, make the velocity of water flow behind baffle 13 comparatively unanimous, increase experimental accuracy.

In order to achieve a better test result, the height of the partition 13 is greater than half of the height of the test chamber 1.

Preferably, the partition 13 and the water inlet 11 at least include a gap therebetween.

Through setting up a clearance between with baffle 13 and water inlet 11, can make rivers fill the clearance after, just can spill over from baffle 13 top, make the velocity of water flow keep unanimous.

Preferably, as for the above embodiment, two bayonets 14 are provided at two ends parallel to the water flow direction in the test chamber 1, the two bayonets 14 are vertically provided, and two ends of the partition plate 13 are inserted into the two bayonets 14 along the vertical direction.

Through setting up two bayonet sockets 14, insert two bayonet sockets 14 with baffle 13 to conveniently change baffle 13, can not disperse concrete under water as required to test and change different baffle 13 height etc..

In this embodiment, a pad 15 is disposed between the water inlet 11 and the water outlet 12, and the pad 15 is used for placing the collapsing barrel.

Through setting up backing plate 15, place the slump bucket, can carry out the slump and test, do not disperse the concrete under water moreover and can not adhere in the bottom of test box 1 box, only need to change backing plate 15 can.

As a preference of the above embodiment, basket 3 has a cubic structure and a height smaller than that of test chamber 1. Wherein, basket 3 is latticed structure for its lateral wall and bottom. The underwater undispersed concrete in the basket 3 can be scoured by water flow, so that the underwater performance of the basket can be tested.

In this embodiment, the test box 1 is a transparent structure, so that the condition of underwater undispersed concrete during testing can be observed more conveniently.

It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an under water does not disperse concrete capability test device which characterized in that includes:

the hydrographic flow velocity meter is used for detecting the flow velocity of water flow in the test chamber;

2. The underwater nondispersive concrete performance testing device according to claim 1, wherein the test chamber is provided at an end near the water inlet with a partition plate, both ends of the partition plate are connected to both ends of the test chamber parallel to the water flow direction, and the height of the partition plate is smaller than that of the test chamber.

3. The apparatus for testing the performance of underwater nondispersive concrete according to claim 2, wherein the height of the partition is greater than half of the height of the test chamber.

4. The underwater undispersed concrete performance testing apparatus of claim 3, wherein the partition plate and the water inlet at least comprise a gap therebetween.

5. The underwater undispersed concrete performance test device of claim 4, wherein two bayonets are arranged at two ends parallel to the water flow direction in the test box, the two bayonets are arranged vertically, and two ends of the partition plate are inserted into the two bayonets along the vertical direction.

6. The underwater undispersed concrete performance testing device of claim 1, wherein a backing plate is arranged between the water inlet and the water outlet, and the backing plate is used for placing a slump bucket.

7. The underwater nondispersive concrete performance testing apparatus according to claim 1, wherein the basket has a cubic structure and a height less than the height of the test chamber.

8. The underwater nondispersive concrete performance testing device according to claim 7, wherein the basket has a grid-like structure on its side walls and bottom.

9. The underwater nondispersive concrete performance testing apparatus according to claim 1, wherein the test chamber is a transparent structure.