CN105223118B - Intelligent concrete chloride ion accelerated test controller - Google Patents

Abstract

The invention provides an intelligent concrete chloride ion accelerated test controller, which includes four parts: a waste liquid tank, an electric flux fixture, a host and a terminal. The waste liquid tank is used to collect liquid, the electric flux clamp is used to fix the test piece, and the host It is used to collect, calculate and send data, and the terminal is used to receive data. The invention has the advantages of convenience and safety, reduces the difficulty of the electric flux test, provides convenience for the study of concrete electric flux, is more intelligent than traditional test instruments, and can automatically cut off the power and collect waste when no one is in charge. Liquid, to transmit data to the terminal, which saves the time of the experimenters and improves the safety of the test process.

Description

Intelligent Concrete Chloride Ion Accelerated Test Controller

technical field

The invention relates to a test controller, in particular to an intelligent concrete chloride ion acceleration test controller, which belongs to the field of concrete permeability research.

Background technique

Now the design of concrete materials and structures is in the transition stage from strength design to durability design. The durability of concrete depends fundamentally on the permeability of concrete. Since the traditional water seepage pressure method (GBJ82-85) cannot adapt to the evaluation of the permeability of modern, especially high-strength and high-performance concrete, the evaluation method of concrete permeability, especially the rapid evaluation Method research is very important. Among them, the electrical measurement and evaluation method is the fastest-growing, and the electric flux detection method is one of the concrete electrical measurement and evaluation methods, which is currently a widely recognized electrical measurement method.

The traditional evaluation methods of concrete impermeability mainly include air-permeable method, water-permeable method, etc. The expression methods can be divided into impermeability label method and permeability coefficient method; the electrical evaluation method is developing rapidly at present. According to the different test indicators, the electrical measurement method is divided into the electric quantity method, the conductivity method, the chloride ion diffusion coefficient method, and the limit voltage method; according to the different electrical signals, it can be divided into DC and AC methods; according to different measurement states, It can be divided into steady-state method and non-steady-state method.

Since the chloride ion permeability resistance of concrete is an important index in terms of concrete durability, civil engineering circles at home and abroad pay more and more attention to the durability of building structures, so the impermeability of high-strength concrete is becoming more and more important.

Contents of the invention

The purpose of the present invention is to provide an intelligent concrete chloride ion acceleration test controller in order to save a lot of manpower and improve the efficiency, safety and accuracy of the test when conducting the electric flux test.

The object of the present invention is achieved in the following way: it includes a waste liquid tank, an electric flux fixture, a host computer and a terminal, the waste liquid tank is a square body, the inner bottom of the waste liquid tank is provided with a fixture platform, and the fixture platform is provided with a round holes, the electric flux fixture is placed on the fixture table and the first small hole and the second small hole are arranged under the liquid-filled test tank of the positive pole fixture and the negative pole fixture of the electric flux fixture, and the second small hole is Through the through hole corresponding to the fixture, a hydraulic sensor is installed in the first small hole, a solenoid valve is arranged in the second small hole, and the second small hole communicates with the round hole provided on the fixture platform, and the number of the waste liquid tanks is at least It is one, and there is at least one corresponding electric flux fixture. There is a row of positive electrodes and a row of negative electrodes on the host, and the positive and negative electrodes of each electric flux fixture are respectively connected to the positive electrodes on the host and the corresponding The negative electrodes in the same column are connected, the hydraulic pressure sensor and the electromagnetic valve are connected to the control circuit in the host, and the terminals are connected to the host.

The present invention also includes such structural features:

1. There are three waste liquid tanks, and the three waste liquid tanks are spliced together. There are three corresponding electric flux clamps, and there are three corresponding positive electrodes and three negative electrodes.

Compared with the prior art, the beneficial effects of the present invention are: the intelligent chloride ion accelerated tester proposed by the present invention can not only fully inherit the various advantages of ordinary electric flux test instruments, but also has other advantages: for the electric flux test needs Human care for 6 hours, artificial collection of waste liquid, the invention proposes the idea of intelligence, more humanized setting: the test process will automatically cut off the power if there is liquid leakage, and will automatically cut off the power after the test is over, more miniaturized, unlimited Remotely accept data and automatically discharge liquid; save the time for the tester to take care of the test, and the leakage phenomenon during the test can be found at the first time, and the test can be re-tested to save time and be more humanized and safe; at the same time, the test is set to automatically discharge liquid The function of waste liquid collection device is provided, which is convenient for test personnel to collect, saves time and effort, and reduces the burden of test personnel.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic structural diagram of the host computer in the present invention;

Fig. 3 is a schematic diagram of the electric flux fixture of the present invention when it is upright (the positive pole is selected symmetrically with the negative pole fixture);

Fig. 4 is the schematic diagram when the electric flux fixture of the present invention is laid flat (the positive electrode fixture and the negative pole fixture symmetrically select the positive pole);

Fig. 5 is the schematic diagram of solenoid valve and hydraulic sensor part of the present invention;

Fig. 6 is the experimental process flowchart of the present invention;

Fig. 7 is a schematic diagram of the waste liquid tank of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The invention relates to the field of concrete permeability, especially applied to high-strength concrete. The instrument can be used to intelligently and conveniently evaluate the permeability of concrete, that is, the evaluation method of concrete resistance to chloride ion penetration. This method is suitable for the permeability evaluation of medium and medium strength concrete. In view of factors such as manual data collection during the electric flux test, 6-hour care to prevent fixture leakage, and waste liquid treatment after the end, an improved electric flux test instrument is proposed, and a more intelligent test instrument is adopted. The operation is simpler, the process of human care and data collection is omitted, and a more humanized design is provided, which saves unnecessary time of human care for the experiment. It has a certain practical effect on the electric flux test research.

1 to 7, the present invention includes four parts: waste liquid tank, electric flux fixture, host and terminal; the waste liquid tank 5 adopts a cuboid of 300×300×200 mm ³ and can be combined together, The bottom of the waste liquid tank is provided with a fixture table 6, the size of the fixture table is 200 × 200mm ² and there is a The electric flux fixture is an ordinary electric flux fixture, but the main part of the fixture has been refitted, and there are two small openings directly below the bottom of the liquid-filled test tank 9, one of which is equipped with a hydraulic sensor 7 and directly It is in contact with the test solution in the liquid-filled test tank, and the other small opening is a passage from the liquid-filled test tank to the bottom of the fixture, in which a solenoid valve 8 is installed. During the test, the fixture first fixes the specimen, and then passes through the positive and negative electrodes. The connection lines 3 and 4 are used to connect the host and the fixture, and finally put the fixture into the waste liquid tank for testing; the host is equipped with multiple positive and negative electrodes 1 and 2, and a row of electrodes is a group, which can be determined by the electrode setting of the host. Simultaneously test multiple specimens.

The host is used to collect and process data and send test results to the terminal in the hands of the tester. The terminal can be a mobile phone in the hands of people. We can design a simple APP application to send test data and test conditions to the mobile phone middle.

Since the experimental results are in groups of three, considering the placement of the fixtures, the waste liquid tank is designed to be independent and can be assembled, and the waste liquid tank has multiple combinations that are more reasonable and humanized.

In the specific use process of the present invention: the negative electrode should be put flat when installing the test piece, pass through the bolt holes with 4 bolt rods, screw the bolt caps for preliminary fixation, install a rubber ring on the negative electrode, and place the concrete test piece around it before installation. After sealing with epoxy resin, put it flat on the rubber ring, then install the rubber ring on the positive electrode, fix the rubber ring by hand, and then pass the positive electrode clamp through the bolt hole through the bolt rod, and at the same time ensure that the upper and lower sides of the test piece are in contact with the rubber ring. Full contact, the rubber ring is not exposed around the test piece, and the bolt cap is screwed on the positive pole.

After installation, put the electric flux fixture upright, fill the infusion port of the electric flux fixture with water through the funnel, and observe for 10 minutes. The positive and negative electrodes are required to be injected into the fixture.

After installing the concrete specimen, after checking the airtightness, connect the wires according to the positive and negative poles of the label, connect the fixture with the host, and then place the fixture in the waste liquid tank as shown in Figure 1, and turn on the host to start the test. During the process, the host sends a test application to the terminal, and then the workflow is shown in Figure 6. After 6 hours, the host calculates and sends the test result to the terminal.

The size of the concrete specimen is 100±2mm in diameter and 50±2mm in height.

In addition to electrodes, copper mesh, rubber rings and bolts, electrode fixture materials should be made of durable and economical materials such as plexiglass and engineering plastics.

The material of the waste liquid tank should be mainly corrosion-resistant materials such as plexiglass and engineering plastics.

The material of bolts and bolt caps shall be stainless steel.

A round hole is set in the middle of the fixture table to facilitate the contact between the fixture and the waste liquid when the fixture is drained, to avoid corrosion and aging of the material, and to facilitate the cleaning of the test instrument and the collection of the waste liquid.

Use the host to start the test. At the same time, the APP software on the terminal mobile phone starts to display the test start, and the test process data is transmitted to the terminal. When there is liquid leakage during the test, the hydraulic sensor in the fixture will send a signal to the host. The host will automatically stop the fixture test corresponding to the sensor. When the experiment is over, the host sends data to the mobile terminal and sends a signal to the fixture and cuts off the power. The fixture receives the signal, automatically removes the test liquid, and waits for the test personnel to process the waste liquid.

A solenoid valve is installed at the bottom of the fixture, which is used to remove liquid after the experiment is finished or liquid leakage is found.

The host computer is mainly used to record and process test data and send data. When liquid leakage occurs, it can control a single fixture to stop the test, and can control the removal of liquid in the fixture when the test is over.

The hydraulic pressure sensor is also installed at the lower end of the liquid-filled test tank, and is in direct contact with the solution in the liquid-filled test tank. When liquid leakage occurs, the pressure at the upper end of the hydraulic sensor will decrease, and the sensor will send a signal back to the host, so that The leak was discovered immediately.

The present invention is a chloride ion accelerated test controller developed based on the concrete electric flux experiment, which can conduct the electric flux test more conveniently, saves the process of the experimenter from taking care of the test instrument, reduces unnecessary time, and at the same time leaks In case of a situation, it can automatically cut off the power and stop the test of the leakage group, but it will not affect the experiments of other groups, which is more convenient and safe.

The invention consists of four parts: a waste liquid tank, an electric flux fixture, a host computer and a terminal. The material of the waste liquid tank is plexiglass, engineering plastics, nylon and the like. The electric flux fixture is based on an ordinary electric flux test fixture with a solenoid valve installed to drain water. On the basis of the general electric flux host, the host is equipped with: it can control the discharge of the test solution of the corresponding group, can send data to the terminal, and can stop the test of the corresponding group. The terminal can be a mobile phone, and a separate APP can be designed and installed on the mobile phone for the experiment, so that the test personnel can receive data and control the test. The hydraulic pressure sensor is installed at the bottom of the liquid-filled test tank and is in contact with the liquid, and is juxtaposed with the solenoid valve. When liquid leakage occurs, the solution in the liquid-filled test tank will decrease, and the hydraulic sensor will respond and transmit signal to the host. The waste liquid tank is equipped with a jig table inside for placing the jig, and a round hole is arranged in the middle of the jig table, and the size of the round hole is designed so that when the jig discharges liquid, the liquid will not come into contact with the jig table, thus making it easier It is convenient for the collection of waste liquid. The waste liquid tank can accommodate one fixture as shown in the figure, or can be enlarged to accommodate multiple fixtures. (accompanying drawing of the present invention just proposes a kind of working condition).

Claims (2)

1. intelligent concrete chloride ion accelerated test controller, it is characterised in that: including waste liquid tank, electric flux fixture, host and Terminal, the waste liquid tank are square bodies, and clamping fixture table is provided on the interior bottom of waste liquid tank, circular hole, the electricity are provided on clamping fixture table Flux fixture is placed on clamping fixture table and is all provided with below the dress liquid test flume of the positive fixture of electric flux fixture and cathode holder It is equipped with the first aperture and second orifice, and second orifice is through the through-hole of corresponding fixture, and hydraulic biography is equipped in the first aperture Sensor is provided with solenoid valve in second orifice, and the circular hole being arranged on second orifice and clamping fixture table communicates, the number of the waste liquid tank Amount at least one, corresponding electric flux fixture is also at least one, and row's positive electrode and row's negative electrode are provided on host, The anode and cathode of each electric flux fixture pass through the negative electrode of connecting line with positive electrode and corresponding same column on host respectively Connection, the hydrostatic sensor and solenoid valve are connect with the control circuit in host, and the terminal is connect with host；

Electric flux fixture is placed in waste liquid tank first, host is opened and starts to be tested,

(1) experiment smoothly, without leakage situation, terminate by experiment in 6 hours, host issues signal, electromagnetism to solenoid valve and terminal Valve makes electric flux fixture start to discharge solution, and terminal is shut down after receiving the off signal that host is spread out of, and experimenter disposes waste liquid；

(2) there is leakage situation, host issues signal to terminal and stops testing, and host issues signal, solenoid valve to solenoid valve Electric flux fixture is set to start to discharge solution, experimenter reinstalls electric flux fixture and re-starts experiment.

2. a kind of intelligent concrete chloride ion accelerated test controller according to claim 1, it is characterised in that: described useless There are three liquid baths, and three waste liquid tanks are stitched together, and there are three corresponding electric flux fixtures, corresponding positive electrode and negative electrode Also respectively there are three.