CN215811893U

CN215811893U - Device convenient to collect fresh concrete slurry

Info

Publication number: CN215811893U
Application number: CN202121194197.9U
Authority: CN
Inventors: 苟凤祥; 朱乾坤
Original assignee: Huzhou Fengsheng New Material Co ltd
Current assignee: Huzhou Fengsheng New Material Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-02-11
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a device convenient for collecting fresh concrete slurry, which comprises a box body, wherein the front side of the box body is provided with an opening; the top surface of the box body is detachably provided with a plurality of screening barrels, and the bottoms of the screening barrels penetrate through the top surface of the box body; a plurality of test barrels are detachably mounted on the bottom surface inside the box body, and the test barrels are mounted under the corresponding sieve barrels respectively. The device has simple structure, can directly flow the fresh concrete slurry into the setting time testing barrel (namely the testing barrel) when in actual use, saves the intermediate operation process, can collect a plurality of fresh concrete slurries at one time, saves manpower, is convenient to operate, is convenient to clean and can be repeatedly used.

Description

Device convenient to collect fresh concrete slurry

Technical Field

The utility model belongs to the technical field of concrete performance detection equipment, and particularly relates to a device convenient for collecting fresh concrete slurry.

Background

The concrete setting time is an important detection index of the concrete performance, has important reference and guidance functions on the stirring, transportation and construction of concrete in concrete engineering, and has important significance for judging the form removal time and the starting point of the increase of the mechanical strength of the concrete.

At present, a full-automatic concrete setting time tester is a commonly used concrete setting time tester and comprises three stainless steel test cylinders, and although the tester can realize full-process automatic test of the change characteristics and the rules of the concrete setting time and the penetration resistance, the process of collecting fresh concrete slurry during the test still has a plurality of problems.

The method for measuring the setting time is specified in GB/T50080-2016 Standard test method for the Performance of common concrete mixtures, during the test, a test sieve is used for sieving out mortar from the concrete mixtures, then the sieved mortar is uniformly stirred, and the mortar is respectively filled into three sample cylinders at one time. In the actual test process, due to the limitation of the test conditions, the test personnel often screen for multiple times, the test process is complicated, and the mortar cannot be respectively loaded into three sample cylinders at one time, so that the test result is inaccurate; and the test device is not easy to clean after the detection is finished.

Disclosure of Invention

The utility model aims to provide a device convenient for collecting fresh concrete slurry aiming at the problems in the prior art.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a device convenient for collecting fresh concrete slurry comprises a box body, wherein an opening is formed in the front face of the box body; the top surface of the box body is detachably provided with a plurality of screening barrels, and the bottoms of the screening barrels penetrate through the top surface of the box body; a plurality of test barrels are detachably mounted on the bottom surface inside the box body, and the test barrels are mounted under the corresponding sieve barrels respectively.

The device has simple structure, can directly flow the fresh concrete slurry into the setting time testing barrel (namely the testing barrel) when in actual use, saves the intermediate operation process, can collect a plurality of fresh concrete slurries at one time, saves manpower, is convenient to operate, is convenient to clean and can be repeatedly used.

Specifically, the screening barrel comprises a circular barrel and a conical barrel, wherein the bottom of the circular barrel is connected with the top of the conical barrel; a screen is arranged inside the conical cylinder; the screen is used for filtering large-particle materials in concrete.

Furthermore, a plurality of first mounting holes are formed in the top surface of the box body, and the inner diameter of each first mounting hole is matched with the outer diameter of the circular cylinder; the circular cylinder is in threaded connection with the first mounting hole; through setting up the sieve feed cylinder into the structure of a circular section of thick bamboo and a toper section of thick bamboo, the spiro union of the first mounting hole of sieve feed cylinder and box body top surface of being convenient for, inside the bottom of sieve feed cylinder can stretch into the box body simultaneously, the thick liquids are collected to the test section of thick bamboo of being convenient for.

Specifically, the outer diameter of the screen is larger than the inner diameter of the bottom surface of the conical cylinder and smaller than the inner diameter of the top surface of the conical cylinder; this arrangement facilitates removal of the screen from the screen cartridge, thereby facilitating cleaning of the screen cartridge and screen.

Specifically, a plurality of second mounting holes are formed in the bottom surface of the interior of the box body, the positions of the second mounting holes are matched with the positions of the first mounting holes, and the inner diameter of each second mounting hole is matched with the outer diameter of the bottom of the test tube; the bottom of the test cylinder is in threaded connection with the second mounting hole. The test tube is detachably connected with the bottom surface inside the box body in a threaded connection mode, so that the test tube can be conveniently mounted and dismounted, the position of the test tube can be fixed, and the situation that the position is turned over or changed (when slurry is collected, the box body is placed on a jolt ramming table) under the action of the jolt ramming table is avoided.

Particularly, the screen cylinder, the screen and the test cylinder are all made of stainless steel, so that rusting is avoided, and the service life of the device is prolonged.

Specifically, sieve feed cylinder top outer wall and test section of thick bamboo outer wall all are equipped with anti-skidding line, the installation and the dismantlement of sieve feed cylinder and test section of thick bamboo of being convenient for.

Compared with the prior art, the utility model has the beneficial effects that: (1) the device has a simple structure and strong operability, the screen screens screen out mortar from the concrete mixture during the test, the mortar can be loaded into three test cylinders at one time, and the operation is simple and effective; (2) the screen mesh in the device is detachably connected with the screen cylinder, so that the device is convenient to clean and replace, and the maintenance cost of the screen cylinder is reduced; (3) the screening cylinder and the test cylinder of the device can be detached from the box body, so that the device is convenient to clean and carry; the screen drum and the test drum are not easy to shake when being installed on the box body, and the stability during the experiment is improved.

Drawings

FIG. 1 is an exploded schematic view of an apparatus for facilitating the collection of fresh concrete slurry in accordance with the present invention;

FIG. 2 is a schematic view of an apparatus for facilitating the collection of fresh concrete slurry in accordance with the present invention;

in the figure: 1. a box body; 2. a test cartridge; 3. a circular cylinder; 4. a tapered barrel; 5. screening a screen; 6. a first mounting hole; 7. and a second mounting hole.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, the embodiment provides a device for conveniently collecting fresh concrete slurry, which comprises a box body 1, wherein an opening is formed in the front surface of the box body 1; 3 screening barrels are detachably mounted on the top surface of the box body 1, and the bottom of each screening barrel penetrates through the top surface of the box body 1; the inside bottom surface demountable installation of box body 1 has 3 test section of

thick bamboo

2, 3 test section of thick bamboo 2 is installed respectively under corresponding sieve feed cylinder. This embodiment can once set up an experiment group and two contrast groups through setting up 3 sieve feed cylinders and 3 experimental section of thick bamboo 2, collects the thick liquids of 3 group's experiments simultaneously, has improved experimental efficiency.

In this embodiment, box body 1 is the cuboid shape, and the leading flank of box body 1 opens uncovered, is convenient for install and dismantle test section of thick bamboo 2 to and be convenient for observe the volume of slurry in the test section of thick bamboo 2.

Specifically, the inner wall of the test cylinder 2 is provided with scale marks, and feeding can be stopped when the liquid level of the slurry reaches the scale marks

Specifically, the screening barrel comprises a circular barrel 3 and a conical barrel 4, wherein the bottom of the circular barrel 3 is connected with the top of the conical barrel 4; a screen 5 is arranged inside the conical barrel 4; the screen 5 is used for filtering large-particle materials in concrete.

In this embodiment, the size of the aperture of the screen 5 is 5 mm.

Furthermore, the top surface of the box body 1 is provided with 3 first mounting holes 6, and the inner diameter of each first mounting hole 6 is matched with the outer diameter of the circular cylinder 3; the circular cylinder 3 is in threaded connection with the first mounting hole 6 (in the specific implementation process, the screening cylinder and the first mounting hole 6 can also be connected in a clamping or other detachable mode); through setting up the sieve feed cylinder into the structure of a circular section of thick bamboo 3 and a toper section of thick bamboo 4, the spiro union of the first mounting hole 6 of sieve feed cylinder and 1 top surface of box body of being convenient for, inside the bottom of sieve feed cylinder can stretch into box body 1 simultaneously, the thick liquids are collected to the test section of thick bamboo 2 of being convenient for.

Specifically, the outer diameter of the screen 5 is larger than the inner diameter of the bottom surface of the conical cylinder 4 and smaller than the inner diameter of the top surface of the conical cylinder 4; this arrangement facilitates removal of the screen 5 from the screen cartridge and thus cleaning of the screen cartridge and screen 5.

Specifically, 3 second mounting holes 7 are formed in the bottom surface of the interior of the box body 1, the positions of the 3 second mounting holes 7 are matched with the positions of the 3 first mounting holes 6, and the inner diameter of each second mounting hole 7 is matched with the outer diameter of the bottom of the test tube 2; the bottom of the test tube 2 is in threaded connection with the second mounting hole 7 (in the specific implementation process, the test tube 2 and the second mounting hole 7 can also be connected in a clamping or other detachable mode). The test tube 2 is detachably connected with the inner bottom surface of the box body 1 in a threaded manner, so that the installation and the disassembly of the tube body are facilitated, and the position of the test tube 2 can be fixed, thereby avoiding the situation that the position is turned over or changed (when slurry is collected, the box body 1 is placed on a compaction table) under the action of the compaction table.

Specifically, the screen cylinder, the screen 5 and the test cylinder 2 are all made of stainless steel, so that rusting is avoided, and the service life of the device is prolonged.

Specifically, screening cylinder top outer wall and test section of thick bamboo 2 outer wall all are equipped with anti-skidding line, are convenient for the installation and the dismantlement of screening cylinder and test section of thick bamboo 2.

When the device is used, the box body 1 is placed on a concrete vibrating table, the stainless steel test cylinder 2 is installed in the second installation hole 7 in the bottom surface of the interior of the box body 1 and is screwed, and then the screen material cylinder is inserted into the first installation hole 6 in the top surface of the box body 1 and is screwed; then pouring the concrete mixture into 3 screening barrels uniformly, and then starting a concrete compaction table; the slurry in the screen cylinder flows into the test cylinder 2 through the screen 5, the amount of the slurry in the test cylinder 2 is observed through the opening on the front surface of the box body 1, the test cylinder 2 is taken out from the bottom surface of the box body 1 after the vibration is finished, and the test cylinder 2 is placed into a full-automatic concrete setting time tester to start measurement; and finally, taking the screen cylinder out of the top surface of the box body 1, taking the screen 5 out of the screen cylinder, and respectively cleaning the screen cylinder and the screen 5 for the next use.

In the embodiment, in order to detect the influence of the concrete reinforcing agent on the setting time of the concrete, a group of control groups and a group of experimental groups are arranged; the formulation of the C30 concrete in both sets of experiments is shown in table 1 below:

TABLE 1 concrete mix ratio for setting time experiments

C30	Water (W)	Cement	Sand	Stone (stone)	Mineral powder	Fly ash	Reinforcing agent	Water reducing agent
									Experimental group	170	200	780	1080	80	80	5
Control group	170	180	780	1080	80	80	20	5

The results of the clotting time experiments are shown in table 2 below:

TABLE 2 clotting time test results

	Initial setting time/min	Final setting time/min
			Experimental group	650	920
Control group	702	930

As can be seen from the above table, after the concrete reinforcing agent is added, the initial setting time and the final setting time of the concrete slurry are both prolonged, the final setting time is prolonged relatively short, and the initial setting time is prolonged relatively long.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A device convenient for collecting fresh concrete slurry is characterized by comprising a box body, wherein the front side of the box body is provided with an opening; the top surface of the box body is detachably provided with a plurality of screening barrels, and the bottoms of the screening barrels penetrate through the top surface of the box body; a plurality of test barrels are detachably mounted on the bottom surface inside the box body, and the test barrels are mounted under the corresponding sieve barrels respectively.

2. The apparatus for facilitating the collection of fresh concrete slurry of claim 1, wherein said screen cylinder comprises a circular cylinder and a conical cylinder, the bottom of said circular cylinder being connected to the top of said conical cylinder; and a screen is arranged in the conical cylinder.

3. The apparatus for facilitating the collection of fresh concrete slurry according to claim 2, wherein the top surface of the box body is provided with a plurality of first mounting holes, the inner diameter of the first mounting holes matching the outer diameter of the circular cylinder; the circular cylinder is in threaded connection with the first mounting hole.

4. The apparatus for facilitating the collection of fresh concrete slurry of claim 2, wherein said screen has an outer diameter greater than the inner diameter of the bottom surface of the cone and less than the inner diameter of the top surface of the cone.

5. The apparatus for facilitating the collection of fresh concrete slurry according to claim 1, wherein the inner bottom surface of the box body is provided with a plurality of second mounting holes, the positions of the plurality of second mounting holes are matched with the positions of the plurality of first mounting holes, and the inner diameters of the second mounting holes are matched with the outer diameter of the bottom of the test cylinder; the bottom of the test cylinder is in threaded connection with the second mounting hole.

6. The apparatus of claim 1, wherein the screen cylinder, the screen mesh and the test cylinder are made of stainless steel.

7. The apparatus of claim 1, wherein the outer wall of the top of the screen cylinder and the outer wall of the test cylinder are provided with anti-slip lines.