CN110398443B

CN110398443B - Concrete impermeability test structure and test method thereof

Info

Publication number: CN110398443B
Application number: CN201910756700.6A
Authority: CN
Inventors: 钟灿坚; 张健; 黎阳
Original assignee: Dongguan Jiaogang Construction Materials Co ltd
Current assignee: Dongguan Jiaogang Construction Materials Co ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-03
Anticipated expiration: 2039-08-16
Also published as: CN110398443A

Abstract

The invention discloses a concrete impermeability test structure which comprises a workbench and a loading cylinder, wherein a conveyor belt is arranged on the upper part of the workbench along the length direction, a loading plate is rotatably arranged at one end of the workbench along the length direction, one end of the loading plate close to the conveyor belt is connected with two sides of the inner part of the workbench through a rotating shaft, a base is horizontally welded at the bottom of the workbench below the loading plate, a plurality of hydraulic columns are arranged at the top of the base, and the tops of the hydraulic columns are rotatably connected with the bottom of the loading plate. The concrete can be shaped and solidified under different environments, and different paving environment temperatures of the concrete in actual use can be simulated. The loading barrel can be rapidly received by using the rotating loading plate, and the loading barrel is conveniently separated from the conveying belt.

Description

Concrete impermeability test structure and test method thereof

Technical Field

The invention relates to a test structure, in particular to a concrete impermeability test structure and a test method thereof, and belongs to the field of application of concrete impermeability tests.

Background

Impervious concrete refers to concrete having an impermeability rating equal to or greater than the P4 rating. The impervious concrete is divided into 6 grades of P4, P6, P8, P10, P12 and more than P12 according to different impervious pressure. The impervious concrete improves the pore structure by improving the compactness of the concrete, thereby reducing a permeation channel and improving the impermeability. In order to test the impermeability of concrete, the concrete is usually tested by an impermeability test structure.

Application number is 201720273432.9's chinese patent, discloses a impervious experimental mould of using of concrete, and its technical scheme main points are including the model, the model includes two templates that splice mutually and form the cavity, the template inner wall is equipped with at least one annular recess along its direction of height, the recess is equipped with inboard protrusion along its inner wall card the fender ring of recess, keep off the ring with the recess passes through the sealing washer seal. The patent only solves the problem of concrete molding, and other problems in the test are not solved.

The existing concrete impermeability test structure still has certain defects in use. The existing concrete impermeability test structure has poor concrete forming effect and cannot simulate the condition of water accumulation on the upper part of concrete in the actual use process. And the concrete solidification state under different environmental temperatures cannot be simulated, and the influence of different environmental temperatures on the concrete impermeability cannot be detected. The measured data are less, and the accuracy of the obtained result is not high. And the existing concrete forming apparatus is inconvenient to move in use and low in working efficiency.

Disclosure of Invention

The invention aims to provide a concrete impermeability test structure and a test method thereof, which can solve the problems that the existing concrete impermeability test structure has poor concrete forming effect and cannot simulate the upper water accumulation condition of concrete in the actual use process. And the concrete solidification state under different environmental temperatures cannot be simulated, and the influence of different environmental temperatures on the concrete impermeability cannot be detected. The measured data are less, and the accuracy of the obtained result is not high. And the existing concrete forming apparatus has the technical problems of inconvenient movement and low working efficiency in use.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a concrete impermeability test structure, includes the workstation and loads a section of thick bamboo, the conveyer belt is installed along length direction on the upper portion of workstation, the one end of workstation is rotated along length direction and is installed and load the board, and the one end that the board is close to the conveyer belt of loading is connected through the inside both sides of pivot with the workstation, the bottom of workstation has the base at the below horizontal welding who loads the board, and a plurality of hydraulic pressure post is installed at the top of base, and the top of hydraulic pressure post is rotated with the bottom of loading the board and is connected.

The top of loading board all is provided with the slide rail along length direction with the top middle-end of conveyer belt, load a section of thick bamboo and install the upper portion at the conveyer belt, load the bottom both sides of a section of thick bamboo and all be connected with the support, the slide rail is installed in the inside of two supports, and the bottom of support and the top butt of conveyer belt.

The mounting bracket is installed to the upper portion middle-end of workstation, the roof is installed at the top of workstation between the top of mounting bracket and load board, and the top of mounting bracket is close to the vertical first hydro-cylinder that is connected with of one end of roof, and the bottom of first hydro-cylinder runs through the mounting bracket and is connected with the motor, and the bottom of motor is connected with the puddler, and the one end that the roof was kept away from to the mounting bracket is connected with the feeder hopper.

The bottom of roof is connected with the bearing plate, all be connected with the bracing piece between the top both ends of bearing plate and the bottom both ends of roof, the bottom at the workstation is installed to the bearing plate, vertical the installing of the top of roof has the second hydro-cylinder, and the roof is run through to the bottom of second hydro-cylinder, and the bottom of second hydro-cylinder is connected with the clamp plate, and the clamp plate is parallel arrangement with the conveyer belt.

The top of workstation has the connecting plate at the top horizontally connect of loading board, and the bottom one end of connecting plate is connected with the workstation through the water pipe, and a plurality of shower nozzle is evenly installed to the bottom of connecting plate, and the shower nozzle passes through internal pipeline and water pipe through connection.

The inside top of loading a section of thick bamboo is provided with annular heating chamber, and inside below is provided with annular freezing chamber, and the inside cover that loads a section of thick bamboo is equipped with and holds a section of thick bamboo, and the top that holds a section of thick bamboo is from the top protrusion that loads a section of thick bamboo, and the top that loads a section of thick bamboo and the junction that holds a section of thick bamboo are provided with sealed the pad.

Preferably, both sides of the workbench are connected with limiting rods along the length direction, and the distance between the two limiting rods is larger than the diameter of the loading barrel.

Preferably, one end the side of bracing piece is installed and is shaken the pump, and the vibrations pump is connected with bracing piece fixed connection.

Preferably, the bottom of support is provided with the perforation through running through, and the perforated inside is pegged graft and is had the inserted bar, and the both sides of slide rail all are provided with the sliding tray along length direction, and the tip slidable mounting of inserted bar is in the inside of sliding tray.

Preferably, the bottom of the pressing plate is in threaded connection with a forming plate, and the middle end of the bottom of the forming plate is connected with a raised head.

Preferably, the loading plate is provided with a through hole in a penetrating manner along the width direction in one end far away from the base, the rotating shaft penetrates through the through hole and is connected with the loading plate in a rotating manner through the through hole, and two ends of the rotating shaft are fixedly connected with two sides of the inner portion of the workbench.

Preferably, the top of the loading plate, which is far away from the top of the conveying belt, is inserted with a baffle, a clamping frame is arranged at the joint of the bottom of the loading plate and the hydraulic column, and the top of the hydraulic column is rotatably connected with the clamping frame.

Preferably, the inner wall of the upper part of the containing cylinder is provided with a plurality of water outlet holes in a penetrating manner, and the containing cylinder is detachably connected with the loading cylinder.

Preferably, the distances between the pressure plate and the stirring rod, between the stirring rod and the feeding hopper, and between the feeding hopper and one end of the workbench far away from the loading plate are equal.

A test method of a concrete impermeability test structure comprises the following concrete steps:

the method comprises the following steps: placing a loading cylinder to be used on the upper part of a conveying belt, clamping a sliding rail between two supports, pushing an insertion rod to move inwards, inserting the end part of the insertion rod into the sliding rail, enabling the bottoms of the two supports to be in close contact with the top of the conveying belt, and enabling the conveying belt to drive the loading cylinder to move towards one end of a loading plate; after the loading cylinder moves to the position right below the feed hopper, the conveyor belt stops running; pouring a preset amount of concrete into the feeding hopper, and enabling the concrete to fall into the containing cylinder in the loading cylinder from the feeding hopper; in the process of pouring concrete, the loading cylinders to be used subsequently are arranged on the upper part of the conveyor belt, the distance between the two loading cylinders is the same as the distance between the feed hopper and the stirring rod, and a plurality of loading cylinders are uniformly and sequentially arranged on the upper part of the conveyor belt according to the method.

Step two: when the conveyor belt stops, the bottom parts of the pressure plate, the stirring rod and the feed hopper are all provided with loading cylinders; after the test is stopped, the feeding hopper injects concrete used for the test into the bottom containing barrel, the first oil cylinder stretches downwards, the stirring rod enters the bottom containing barrel, the motor drives the stirring rod to stir and mix the concrete in the bottom containing barrel, the second oil cylinder drives the pressing plate to move downwards to enter the bottom containing barrel, and the pressing plate generates extrusion force on the concrete in the bottom containing barrel;

step three: the pressing plate is connected into a template at the bottom through threads in the extrusion process, and after the molding plate is extruded on the upper part of the concrete, a groove is extruded on the upper part of the concrete by the raised head at the bottom; after the concrete is machined and molded in the containing cylinder, the concrete moves to the upper part of the loading plate along with the conveying belt, the hydraulic column contracts downwards to drive one end of the loading plate to incline downwards, the other end of the loading plate rotates around the rotating shaft, the containing cylinder slides on the upper part of the loading plate along the sliding rail, slides to the bottom end and contacts with the baffle, and after the concrete is placed stably, the hydraulic column extends to drive the loading plate to rotate upwards to return to the horizontal position, and the containing cylinder keeps a vertical state; the heating cavity is started in the solidification process, the heating wires in the heating cavity dry the concrete to simulate the solidification of the concrete in a high-temperature environment, the freezing cavity is started, the internal condenser pipe cools the concrete to simulate the solidification of the concrete in a low-temperature environment;

step four: and finally, spraying water to the upper part of the concrete by the spray head according to the set spraying amount, discharging the water accumulated on the upper part of the concrete from the water outlet hole, and finally observing the permeation condition of the concrete.

The invention has the beneficial effects that:

1. slide rail and conveyer belt are connected through the upper portion at the workstation for the loading section of thick bamboo that will use in the work is placed on the upper portion of conveyer belt, and the slide rail joint promotes the inserted bar and inwards removes between two supports, and the tip of inserted bar is pegged graft in the inside of slide rail, the bottom of two supports and the inseparable contact in top of conveyer belt, and the conveyer belt can drive the one end removal of loading section of thick bamboo to the loading board. The loading barrel is not easy to shake during moving, the stability is good, the bottom can be clamped by the slide rail stably, the loading barrel cannot topple over, and the loading barrel can move stably. The loading barrel can be intelligently controlled to move, the position of the loading barrel is controlled by controlling the rotating speed and the operating time of the conveyor belt, and the control is simple and quick.

2. Through upper portion installation puddler and the clamp plate at the workstation for when the conveyer belt stopped, a loading section of thick bamboo has all been placed to the bottom of clamp plate, puddler and feeder hopper, and the inside concrete of a loading section of thick bamboo can be by abundant processing, and the efficiency of processing obtains improving. After stopping, first hydro-cylinder is flexible downwards, and the puddler gets into the inside that the bottom held a section of thick bamboo, and the motor drives the puddler and stirs the mixture to the concrete of inside for it is more even that the muddy earth mixes, and the inside is filled more closely reality. And the second hydro-cylinder drives the clamp plate and moves down and gets into the inside that the bottom held a section of thick bamboo, and the clamp plate produces the extrusion force to inside concrete, plays extruded effect to the concrete, and the vibrations of reciprocating pump simultaneously, and then drives inside concrete and shake. The concrete can be uniformly mixed and filled, and the mechanical operation is adopted to replace the manual operation, so that the working efficiency is improved. And the environment that the concrete was being processed inside holding a section of thick bamboo is similar with the environment in the actual road is laid, fine simulation concrete actual service environment, be favorable to experimental accuracy.

3. The forming plate and the raised head are connected to the bottom of the pressing plate, the pressing plate can be connected into a shaping plate through threads at the bottom in the extruding process, the forming plate is extruded on the upper portion of concrete, the raised head at the bottom can extrude a groove in the upper portion of the concrete, the groove enables water to be stored in the subsequent testing process conveniently, and the phenomenon of accumulated water in a road is simulated. The upper part of the concrete is horizontal, the condition of rapid water filtration and the phenomenon of water accumulation on the upper part can be simulated, so that the test of the water seepage resistance of the concrete is more accurate.

4. Through the inside heating chamber and the freezing chamber that sets up at the loading section of thick bamboo for the concrete is holding a section of thick bamboo inside machine-shaping completion back, and the in-process that solidifies can be according to the needs of reality for the concrete solidifies under the room temperature state, also can start the heating chamber, and inside electric heat silk is dried the concrete, and the solidification under the simulation concrete high temperature environment, and start freezing chamber, inside condenser pipe is cooled down the concrete, the solidification under the simulation concrete low temperature environment. Meanwhile, the solidification temperature can be changed in various ways through the heating cavity and the freezing cavity, and concrete can be solidified in different environments. Different paving environment temperatures in actual use of concrete are simulated. The loading barrel can be rapidly received by using the rotating loading plate, and the loading barrel is conveniently separated from the conveying belt.

5. And finally, the spray head sprays water to the upper part of the concrete, the water can be sprayed according to the set spraying amount, and the water on the upper part of the concrete is accumulated too much and then is discharged from the water outlet hole. And finally, observing the permeation condition of the concrete, analyzing the influence of different solidification temperatures on the permeability of the concrete, and comprehensively testing the anti-permeation performance of the concrete.

Drawings

In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is an exploded perspective view of fig. 1 according to the present invention.

Fig. 3 is a schematic view of the mounting structure of the stirring rod of the present invention.

FIG. 4 is a schematic view of the installation structure of the loading drum and the conveyor belt of the present invention.

Fig. 5 is a schematic view of a side top plate mounting structure of the present invention.

FIG. 6 is a schematic view of the structure of the pressure plate of the present invention.

Fig. 7 is a schematic view of the loading plate structure of the present invention.

FIG. 8 is a schematic view of the connecting plate structure of the present invention.

Fig. 9 is a schematic view of the internal structure of the loading cylinder of the present invention.

In the figure: 1. a work table; 2. a loading cartridge; 3. a feed hopper; 4. a mounting frame; 5. a first cylinder; 6. a limiting rod; 7. a bearing plate; 8. a top plate; 9. vibrating the pump; 10. a connecting plate; 11. a loading plate; 12. a base; 13. a conveyor belt; 14. a motor; 15. a stirring rod; 16. a support; 17. perforating; 18. inserting a rod; 19. a slide rail; 20. a second cylinder; 21. pressing a plate; 22. forming a plate; 23. a raised head; 24. a hydraulic column; 25. a through hole; 26. a baffle plate; 27. a spray head; 28. a water pipe; 29. a heating cavity; 30. a freezing chamber; 31. a containing cylinder; 32. a water outlet hole; 33. and a gasket.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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.

Referring to fig. 1-9, a concrete impermeability test structure comprises a workbench 1 and a loading cylinder 2, wherein a conveyor belt 13 is installed on the upper portion of the workbench 1 along the length direction, a loading plate 11 is installed at one end of the workbench 1 along the length direction in a rotating manner, one end, close to the conveyor belt 13, of the loading plate 11 is connected with two inner sides of the workbench 1 through a rotating shaft, a base 12 is horizontally welded at the bottom of the workbench 1 below the loading plate 11, a plurality of hydraulic columns 24 are installed at the top of the base 12, and the tops of the hydraulic columns 24 are rotatably connected with the bottom of the loading plate 11;

the top of the loading plate 11 and the middle end of the top of the conveyor belt 13 are both provided with a slide rail 19 along the length direction, the loading cylinder 2 is arranged at the upper part of the conveyor belt 13, the two sides of the bottom of the loading cylinder 2 are both connected with a bracket 16, the slide rails 19 are arranged inside the two brackets 16, and the bottom of the bracket 16 is abutted against the top of the conveyor belt 13;

the middle end of the upper part of the workbench 1 is provided with a mounting frame 4, the top of the workbench 1 is provided with a top plate 8 between the mounting frame 4 and the top of the loading plate 11, one end of the top of the mounting frame 4 close to the top plate 8 is vertically connected with a first oil cylinder 5, the bottom of the first oil cylinder 5 penetrates through the mounting frame 4 and is connected with a motor 14, the bottom of the motor 14 is connected with a stirring rod 15, and one end of the mounting frame 4 far away from the top plate 8 is connected with a feed hopper 3;

the bottom of the top plate 8 is connected with a bearing plate 7, supporting rods are connected between two ends of the top of the bearing plate 7 and two ends of the bottom of the top plate 8, the bearing plate 7 is installed at the bottom of the workbench 1, a second oil cylinder 20 is vertically installed at the top of the top plate 8, the bottom of the second oil cylinder 20 penetrates through the top plate 8, a pressing plate 21 is connected to the bottom of the second oil cylinder 20, and the pressing plate 21 and the conveyor belt 13 are arranged in parallel;

the top of the workbench 1 is horizontally connected with a connecting plate 10 above the loading plate 11, one end of the bottom of the connecting plate 10 is connected with the workbench 1 through a water pipe 28, a plurality of spray heads 27 are uniformly arranged at the bottom of the connecting plate 10, and the spray heads 27 are communicated with the water pipe 28 through an internal pipeline;

an annular heating cavity 29 is arranged above the interior of the loading barrel 2, an annular freezing cavity 30 is arranged below the interior of the loading barrel 2, a containing barrel 31 is sleeved inside the loading barrel 2, the top end of the containing barrel 31 protrudes out of the top of the loading barrel 2, and a sealing gasket 33 is arranged at the joint of the top of the loading barrel 2 and the containing barrel 31.

The both sides of workstation 1 all are connected with gag lever post 6 along length direction, and the distance between two gag lever posts 6 is greater than the diameter of loading a section of thick bamboo 2, and gag lever post 6 can carry out spacingly to loading a section of thick bamboo 2 from the side, makes it stable in removing.

The side-mounting of one end bracing piece has vibrations pump 9, and vibrations pump 9 and bracing piece fixed connection, and vibrations pump 9 vibrations, and then drive inside concrete and shake, fine simulation concrete actual service environment.

The bottom of support 16 is run through and is provided with perforation 17, the inside of perforation 17 is pegged graft and is had inserted bar 18, the both sides of slide rail 19 all are provided with the sliding tray along length direction, the tip slidable mounting of inserted bar 18 is in the inside of sliding tray, the loading section of thick bamboo 2 that waits to use is placed on the upper portion of conveyer belt 13, slide rail 19 joint is between two supports 16, promote inserted bar 18 and inwards move, the tip of inserted bar 18 is pegged graft in the inside of slide rail 19 for can not break away from slide rail 19 in the removal of loading section of thick bamboo 2.

The bottom threaded connection of clamp plate 21 has profiled sheeting 22, and the bottom middle-end of profiled sheeting 22 is connected with plush copper 23, and clamp plate 21 can be at bottom threaded connection in extruded in-process and become template 22, and profiled sheeting 22 extrudes behind the upper portion of concrete, and plush copper 23 of bottom can extrude a recess on the upper portion of concrete, and the recess is convenient to be held water in the follow-up test process, simulates the phenomenon of ponding in the road.

The loading plate 11 is far away from the inside through-hole 25 that is provided with that runs through along the width direction of one end of base 12, and the pivot runs through-hole 25 to rotate with loading plate 11 through-hole 25 and be connected, the both ends of pivot all with the inside both sides fixed connection of workstation 1, loading plate 11 can be rotated in the outside of pivot by through-hole 25.

The top of the loading plate 11, which is far away from the top of the conveyor belt 13, is inserted with a baffle 26, a buckling frame is arranged at the joint of the bottom of the loading plate 11 and the hydraulic column 24, the top of the hydraulic column 24 is rotatably connected with the buckling frame, and the lifting of the hydraulic column 24 does not influence the up-and-down movement of the end of the loading plate 11.

The top inner wall that holds a section of thick bamboo 31 runs through and is provided with a plurality of apopore 32, holds a section of thick bamboo 31 and loads and be connected for dismantling between the section of thick bamboo 2, and the water accumulation on concrete upper portion is too much back from apopore 32 outwards discharge, and the experiment finishes the back, holds a section of thick bamboo 31 and can freely dismantle from the inside that loads a section of thick bamboo 2, makes things convenient for inside concrete to get rid of.

The distances between the pressure plate 21 and the stirring rod 15, between the stirring rod 15 and the feeding hopper 3 and between the feeding hopper 3 and one end of the workbench 1 far away from the loading plate 11 are equal, the distances are equal, the position control of the conveying belt 13 on the loading barrel 2 is facilitated, and the concrete can be fully processed.

the method comprises the following steps: placing the loading cylinder 2 to be used on the upper part of the conveyor belt 13, clamping the slide rail 19 between the two brackets 16, pushing the inserted rod 18 to move inwards, inserting the end part of the inserted rod 18 into the slide rail 19, enabling the bottoms of the two brackets 16 to be in close contact with the top of the conveyor belt 13, and enabling the conveyor belt 13 to drive the loading cylinder 2 to move towards one end of the loading plate 11; after the loading cylinder 2 moves to the position right below the feed hopper 3, the conveyor belt 13 stops running; pouring a preset amount of concrete into the feed hopper 3, and dropping the concrete from the feed hopper 3 into the containing cylinder 31 in the loading cylinder 2; during the pouring of concrete, loading cylinders 2 to be used subsequently are mounted on the upper part of the conveyor belt 13, the distance between the two loading cylinders 2 being the same as the distance between the feed hopper 3 and the mixing rod 15, according to which method several loading cylinders 2 are mounted on the upper part of the conveyor belt 13 in a uniform sequence.

Step two: when the conveyor belt 13 stops, the loading cylinder 2 is placed at the bottoms of the pressure plate 21, the stirring rod 15 and the feed hopper 3; after the operation is stopped, the feed hopper 3 injects the concrete used for the test into the bottom containing barrel 31, the first oil cylinder 5 stretches downwards, the stirring rod 15 enters the bottom containing barrel 31, the motor 14 drives the stirring rod 15 to stir and mix the concrete in the bottom containing barrel 31, the second oil cylinder 20 drives the pressing plate 21 to move downwards to enter the bottom containing barrel 31, and the pressing plate 21 generates extrusion force on the concrete in the bottom containing barrel 31;

step three: the pressing plate 21 is connected into a shaping plate 22 at the bottom through threads in the extrusion process, and after the shaping plate 22 is extruded on the upper part of the concrete, a groove is extruded on the upper part of the concrete by the raised head 23 at the bottom; after the concrete is processed and molded in the containing barrel 31, the concrete moves to the upper part of the loading plate 11 along with the conveyor belt 13, the hydraulic column 24 contracts downwards to drive one end of the loading plate 11 to incline downwards, the other end of the loading plate rotates around the rotating shaft, the containing barrel 31 slides on the upper part of the loading plate 11 along the slide rail 19 to slide to the bottom end and contact with the baffle 26, after the concrete is stably placed, the hydraulic column 24 extends to drive the loading plate 11 to rotate upwards to return to the horizontal position, and the containing barrel 31 keeps the vertical state; in the solidification process, the heating cavity 29 is started, the internal heating wire dries the concrete to simulate the solidification of the concrete in a high-temperature environment, the freezing cavity 30 is started, and the internal condenser pipe cools the concrete to simulate the solidification of the concrete in a low-temperature environment;

step four: and finally, spraying water to the upper part of the concrete by the spray head 27 according to the set spraying amount, discharging the water accumulated on the upper part of the concrete outwards from the water outlet hole 32, and finally observing the permeation condition of the concrete.

When the loading device is used, the loading barrel 2 to be used is placed on the upper portion of the conveying belt 13, the sliding rail 19 is clamped between the two supports 16, the inserting rod 18 is pushed to move inwards, the end portion of the inserting rod 18 is inserted into the sliding rail 19, the bottoms of the two supports 16 are in close contact with the top of the conveying belt 13, and the conveying belt 13 can drive the loading barrel 2 to move towards one end of the loading plate 11. The loading barrel 2 is not easy to shake during moving, the stability is good, the bottom can be stably clamped by the slide rail 19, the loading barrel cannot topple over, and the loading barrel can stably move. The rotation speed and the start/stop time of the conveyor belt 13 are set in the plc control system, and the movement of the loading drum 2 can be intelligently controlled. After the loading drum 2 has moved to just below the feed hopper 3, the conveyor 13 stops. A predetermined amount of concrete is poured into the inside of the feed hopper 3, and the concrete falls from the feed hopper 3 into the inside of the containing cylinder 31 in the loading cylinder 2. In the process of pouring concrete, the loading cylinders 2 to be used subsequently are arranged on the upper part of the conveyor belt 13, the distance between two adjacent loading cylinders 2 is ensured to be the same as the distance between the feed hopper 3 and the stirring rod 15, and a plurality of loading cylinders 2 are uniformly and sequentially arranged on the upper part of the conveyor belt 13 according to the method.

When the conveyor belt 13 stops, the loading cylinder 2 is placed at the bottom of the pressure plate 21, the stirring rod 15 and the feeding hopper 3, the concrete inside the loading cylinder 2 can be fully processed, and the processing efficiency is improved. After stopping, feeder hopper 3 holds the used concrete of the inside injection test of a section of thick bamboo 31 to the bottom, and first hydro-cylinder 5 stretches out and draws back downwards, and puddler 15 gets into the inside that holds a section of thick bamboo 31 to the bottom, and motor 14 drives puddler 15 and stirs the mixture to the concrete of inside for the mixture of muddy earth is more even, and the inside is filled more closely reality. And the second oil cylinder 20 drives the pressing plate 21 to move downwards to enter the bottom containing barrel 31, the pressing plate 21 generates extrusion force on the inside concrete, the extrusion force acts on the concrete, and meanwhile, the vibration pump 9 vibrates to drive the inside concrete to vibrate. The concrete can be uniformly mixed and filled, and the mechanical operation is adopted to replace the manual operation, so that the working efficiency is improved. And the environment that the concrete is processed inside the containing cylinder 31 is similar to the environment in the actual road pavement, so that the actual use environment of the concrete is well simulated, and the accuracy of the test is facilitated.

And the pressing plate 21 can be connected into the shaping plate 22 at the bottom through threads in the extrusion process, after the shaping plate 22 is extruded on the upper part of the concrete, the raised head 23 at the bottom can extrude a groove on the upper part of the concrete, the groove is convenient for water storage in the subsequent test process, and the phenomenon of water accumulation in a road can be simulated. The upper part of the concrete is horizontal, the condition of rapid water filtration and the phenomenon of water accumulation on the upper part can be simulated, so that the test of the water seepage resistance of the concrete is more accurate.

After the inside machine-shaping of containing section of thick bamboo 31 is accomplished, along with conveyer belt 13 removes the upper portion of loading board 11, hydraulic pressure post 24 contracts downwards, drive the one end downward sloping of loading board 11, the other end rotates round the pivot, containing section of thick bamboo 31 slides on the upper portion of loading board 11 along slide rail 19, the end on end slides, contact with baffle 26, place stably after, hydraulic pressure post 24 extension, drive loading board 11 upwards rotates and gets back to horizontal position, containing section of thick bamboo 31 keeps vertical state, inside concrete can keep the fashioned original state to solidify. The in-process that solidifies can be according to actual needs for the concrete solidifies under room temperature state, also can start heating chamber 29, and inside electric heat silk is dried the concrete, and the solidification under the simulation concrete high temperature environment to and start freezing chamber 30, inside condenser pipe cools down the concrete, the solidification under the simulation concrete low temperature environment. Meanwhile, the setting temperature can be changed by the heating cavity 29 and the freezing cavity 30, and the concrete can be shaped and set under different environments. Different paving environment temperatures in actual use of concrete are simulated.

And finally, the spray head 27 sprays water to the upper part of the concrete, the water can be sprayed according to the set spraying amount, the water on the upper part of the concrete is accumulated excessively and then is discharged outwards from the water outlet hole 32, the penetration condition of the concrete is finally observed, the influence of different solidification temperatures on the penetration performance of the concrete can be analyzed, and the anti-penetration performance of the concrete can be comprehensively tested.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. The concrete impermeability test structure is characterized by comprising a workbench (1) and a loading barrel (2), wherein a conveyor belt (13) is installed on the upper portion of the workbench (1) along the length direction, a loading plate (11) is installed at one end of the workbench (1) in a rotating mode along the length direction, one end, close to the conveyor belt (13), of the loading plate (11) is connected with the two sides of the interior of the workbench (1) through a rotating shaft, a base (12) is horizontally welded at the bottom of the workbench (1) below the loading plate (11), a plurality of hydraulic columns (24) are installed at the top of the base (12), and the tops of the hydraulic columns (24) are rotatably connected with the bottom of the loading plate (11);

the top of the loading plate (11) and the middle end of the top of the conveyor belt (13) are both provided with sliding rails (19) along the length direction, the loading barrel (2) is installed at the upper part of the conveyor belt (13), the two sides of the bottom of the loading barrel (2) are both connected with supports (16), the sliding rails (19) are installed inside the two supports (16), and the bottoms of the supports (16) are abutted to the top of the conveyor belt (13);

the middle end of the upper part of the workbench (1) is provided with a mounting rack (4), the top of the workbench (1) is provided with a top plate (8) between the mounting rack (4) and the top of the loading plate (11), one end, close to the top plate (8), of the top of the mounting rack (4) is vertically connected with a first oil cylinder (5), the bottom of the first oil cylinder (5) penetrates through the mounting rack (4) and is connected with a motor (14), the bottom of the motor (14) is connected with a stirring rod (15), and one end, far away from the top plate (8), of the mounting rack (4) is connected with a feeding hopper (3;

the bottom of the top plate (8) is connected with a bearing plate (7), supporting rods are connected between two ends of the top of the bearing plate (7) and two ends of the bottom of the top plate (8), the bearing plate (7) is installed at the bottom of the workbench (1), a second oil cylinder (20) is vertically installed at the top of the top plate (8), the bottom of the second oil cylinder (20) penetrates through the top plate (8), the bottom of the second oil cylinder (20) is connected with a pressing plate (21), and the pressing plate (21) and the conveyor belt (13) are arranged in parallel;

the top of the workbench (1) is horizontally connected with a connecting plate (10) above the loading plate (11), one end of the bottom of the connecting plate (10) is connected with the workbench (1) through a water pipe (28), a plurality of spray heads (27) are uniformly arranged at the bottom of the connecting plate (10), and the spray heads (27) are communicated with the water pipe (28) through an internal pipeline;

the inside top of loading a section of thick bamboo (2) is provided with annular heating chamber (29), and inside below is provided with annular freezing chamber (30), and the inside cover that loads a section of thick bamboo (2) is equipped with and holds a section of thick bamboo (31), and the top that holds a section of thick bamboo (31) is protruding from the top that loads a section of thick bamboo (2), and the top that loads a section of thick bamboo (2) and the junction that holds a section of thick bamboo (31) are provided with sealed pad (33).

2. The concrete impermeability test structure of claim 1, wherein, both sides of the workbench (1) are connected with limiting rods (6) along the length direction, and the distance between the two limiting rods (6) is larger than the diameter of the loading cylinder (2).

3. The concrete impermeability test structure of claim 1, wherein a vibration pump (9) is installed on the side of one end of the support rod, and the vibration pump (9) is fixedly connected with the support rod.

4. The concrete impermeability test structure of claim 1, wherein a through hole (17) is formed at the bottom of the bracket (16), an insertion rod (18) is inserted into the through hole (17), sliding grooves are formed on both sides of the sliding rail (19) along the length direction, and the ends of the insertion rod (18) are slidably mounted in the sliding grooves.

5. The concrete impermeability test structure of claim 1, wherein the bottom of the pressure plate (21) is connected with a forming plate (22) by screw thread, and the middle end of the bottom of the forming plate (22) is connected with a convex head (23).

6. The concrete impermeability test structure of claim 1, wherein a through hole (25) is formed inside one end of the loading plate (11) far away from the base (12) along the width direction, a rotating shaft penetrates through the through hole (25) and is rotatably connected with the loading plate (11) through the through hole (25), and both ends of the rotating shaft are fixedly connected with both sides of the inside of the workbench (1).

7. The concrete impermeability test structure of claim 1, wherein a baffle (26) is inserted on the top of the loading plate (11) far away from the top of the conveyor belt (13), a buckling frame is arranged at the connection position of the bottom of the loading plate (11) and the hydraulic column (24), and the top of the hydraulic column (24) is rotatably connected with the buckling frame.

8. The concrete impermeability test structure of claim 1, wherein a plurality of water outlet holes (32) are formed through the upper inner wall of the containing cylinder (31), and the containing cylinder (31) is detachably connected with the loading cylinder (2).

9. The concrete impermeability test structure of claim 1, wherein the distance between the pressure plate (21) and the stirring rod (15), the distance between the stirring rod (15) and the feeding hopper (3), and the distance between the feeding hopper (3) and the end of the workbench (1) far away from the loading plate (11) are all equal.

10. A test method for testing concrete impermeability by using the concrete impermeability test structure of claim 1, wherein the concrete impermeability test method comprises the following steps:

the method comprises the following steps: placing a loading cylinder (2) to be used on the upper part of a conveying belt (13), clamping a sliding rail (19) between two supports (16), pushing an inserted rod (18) to move inwards, inserting the end part of the inserted rod (18) into the sliding rail (19), enabling the bottoms of the two supports (16) to be in close contact with the top of the conveying belt (13), and driving the loading cylinder (2) to move towards one end of a loading plate (11) by the conveying belt (13); after the loading cylinder (2) moves to the position right below the feed hopper (3), the conveyor belt (13) stops running; pouring a preset amount of concrete into the feeding hopper (3), wherein the concrete falls into the containing cylinder (31) in the loading cylinder (2) from the feeding hopper (3); in the process of pouring concrete, mounting the loading cylinders (2) to be used subsequently on the upper part of a conveyor belt (13), wherein the distance between the two loading cylinders (2) is the same as the distance between a feed hopper (3) and a stirring rod (15), and uniformly and sequentially mounting a plurality of loading cylinders (2) on the upper part of the conveyor belt (13) according to the method;

step two: when the conveyor belt (13) stops, the loading cylinder (2) is placed at the bottoms of the pressure plate (21), the stirring rod (15) and the feed hopper (3); after the operation is stopped, concrete used for the test is injected into the bottom containing barrel (31) from the feed hopper (3), the first oil cylinder (5) stretches downwards, the stirring rod (15) enters the bottom containing barrel (31), the motor (14) drives the stirring rod (15) to stir and mix the concrete in the bottom containing barrel, the second oil cylinder (20) drives the pressing plate (21) to move downwards to enter the bottom containing barrel (31), and the pressing plate (21) generates extrusion force on the concrete in the bottom containing barrel;

step three: the pressing plate (21) is in threaded connection with the forming plate (22) at the bottom in the extrusion process, and after the forming plate (22) is extruded on the upper part of the concrete, the raised head (23) at the bottom extrudes a groove on the upper part of the concrete; after the concrete is processed and molded inside the containing barrel (31), the concrete moves to the upper part of the loading plate (11) along with the conveyor belt (13), the hydraulic column (24) contracts downwards to drive one end of the loading plate (11) to incline downwards, the other end of the loading plate rotates around the rotating shaft, the containing barrel (31) slides on the upper part of the loading plate (11) along the sliding rail (19), slides to the bottom end and contacts with the baffle (26), after the concrete is placed stably, the hydraulic column (24) extends to drive the loading plate (11) to rotate upwards to return to the horizontal position, and the containing barrel (31) keeps the vertical state; in the solidification process, a heating cavity (29) is started, an internal heating wire dries concrete to simulate the solidification of the concrete in a high-temperature environment, a freezing cavity (30) is started, an internal condensing pipe cools the concrete to simulate the solidification of the concrete in a low-temperature environment;

step four: and finally, spraying water to the upper part of the concrete by the spray head (27) according to the set spraying amount, discharging the accumulated water at the upper part of the concrete outwards from the water outlet hole (32), and finally observing the permeation condition of the concrete.