CN103217377B - Rapid determination device of salt corrosion resistance performance of concrete and determination method thereof - Google Patents
Rapid determination device of salt corrosion resistance performance of concrete and determination method thereof Download PDFInfo
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- CN103217377B CN103217377B CN201310122119.1A CN201310122119A CN103217377B CN 103217377 B CN103217377 B CN 103217377B CN 201310122119 A CN201310122119 A CN 201310122119A CN 103217377 B CN103217377 B CN 103217377B
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Abstract
The invention discloses a rapid determination device of the salt corrosion resistance performance of concrete and a determination method thereof. The device comprises a testing part, a control part, a supporting part and a detected part, wherein the testing part comprises a working box and a water tank; the working box is internally provided with waterproof electric heating wires, a bubble making device, and concentration and temperature testers; the working box is communicated with the water tank and the side wall of the working box is provided with a tool box water outlet; the side wall of the water tank is provided with a water tank water outlet; a water inlet is formed in the upper end of the water tank; a rotary shaft is fixed in an axial direction of the working box; the supporting part comprises a supporting water tank, a water pipe and a rotary shaft; and the control part comprises a motor for driving the rotary shaft to rotate and a control panel for controlling the motor. Aiming at the test of the salt corrosion resistance performance of the concrete, the rapid determination device is used for evaluating the salt corrosion resistance performance of the concrete and has the advantages that the determination speed is fast, the environment in the working box is controllable and the determination environment is flexible to master compared with the prior art.
Description
Technical field
The invention belongs to road engineering technical field of concrete, relate to the performance measurement of road engineering agent on crack resistance of concrete salt corrosion, especially a kind of agent on crack resistance of concrete salt corrosion performance rapid determination device and assay method thereof.
Background technology
Salt corrosion is an important content of concrete durability, is also that influence factor is the most complicated simultaneously, a kind of Environmental Water erosion that harmfulness is maximum.All contain various corrosivity salts substances in soil, underground water, seawater, rotten organism and industrial waste water, they infiltrate inside concrete and react with hydrolysis product of cement, thus the various performance of concrete is lost gradually.
Concrete anti-salt corrosion is a complicated physical and chemical process, affects a lot of because have of salt corrosion speed, such as etchant solution concentration and dissolution homogeneity, immersion way, drying and watering cycle etc.Many experimental studies all confirm, along with the appropriateness of Acid concentration increases, the speed that agent on crack resistance of concrete salt corrosion destroys can be accelerated, and the concentration of etchant solution is more even, and corrosive effect is more obvious.And immersion way also has a certain impact to erosion rate, half immersion way is more more effective than complete immersion mode, this is because etchant solution liquid level and a little more than the concrete at liquid level place except being subject to the corrosion of intensity identical with concrete under liquid level, also be subject to the huge crystallization pressure because the salt-pepper noise of drying generation brings, therefore the damage be subject to is even more serious than complete immersion mode.Drying and watering cycle also has the impact of outbalance to concrete corrosion resistance, concrete in dry conditions, dry contraction can be there is, when contraction suffers restraints, concrete is often made to produce inner microfracture, under the double action being corroded solution erosion, inner microfracture develops gradually, finally causes the reduction of concrete performance.In the test of agent on crack resistance of concrete salt corrosion, because corrosion impact is comparatively slow, so the test period is longer, even 1 year some half a year.Therefore be necessary to develop the comprehensive multiple factor affecting corrosion rate of a kind of instrument to accelerate agent on crack resistance of concrete salt corrosion process, reduction test period.
Summary of the invention
The object of the invention is to the shortcoming overcoming above-mentioned prior art, a kind of agent on crack resistance of concrete salt corrosion performance rapid determination device and assay method thereof are provided, it considers that etchant solution concentration, etchant solution homogeneity, many factors such as corrosion immersion way, drying and watering cycle etc. are on the impact of the process of agent on crack resistance of concrete salt corrosion, adopt the mode controlling work box environment, agent on crack resistance of concrete salt corrosion process can be accelerated, Fast Measurement agent on crack resistance of concrete salt corrosion performance, reduction test period.
The object of the invention is to solve by the following technical programs:
This agent on crack resistance of concrete salt corrosion performance rapid determination device, comprises test component, control assembly, support component and unit under test; Described test component comprises work box, water tank; Be provided with waterproof heating wire, machine for soap-bubble and concentration and temperature measuring device in described work box, described work box is communicated with water tank by water pipe, and the sidewall of work box also offers tool box water delivering orifice; The sidewall of described water tank offers and the water outlet of water tank of described tool box water delivering orifice in same level, and the upper end of water tank is provided with water inlet; The axial restraint of described work box is provided with the rotating shaft that it can be driven to overturn; Described support member supports water tank, water pipe and rotating shaft; Described control assembly comprises the motor rotated in order to drive shaft and the control desk controlling described motor.Work box sidewall top and the bottom are respectively provided with one group of waterproof heating wire.
The top and bottom of above-mentioned work box are respectively containing one group of machine for soap-bubble.
Above-mentioned tool box water delivering orifice is arranged on the flanking central part of work box.
Respectively there are a concentration and temperature measuring device in the top and the bottom, front of above-mentioned work box.
The present invention also proposes a kind of rapid assay methods of above-mentioned agent on crack resistance of concrete salt corrosion performance rapid determination device, comprises the following steps:
1) work box is put into upward in the concrete sample front of forming or bottom surface, water inlet is opened and makes in water tank, to inject etchant solution and flow out to water outlet of water tank, now work box internal corrosion solution is to the half of work box height, and work box water delivering orifice just flows out solution;
2) work box is set on control desk and rotates time required for 180 °, and open the switch of waterproof heating wire and machine for soap-bubble, and in process of the test real-time monitored concentration and temperature measuring device to guarantee etchant solution concentration and temperature Pass Test requirement;
3) work box is after roll-over test, takes out unit under test concrete sample, completes test, then test the compressive strength of test specimen.
The present invention has following beneficial effect:
(1) the invention provides a kind of new agent on crack resistance of concrete salt corrosion performance Rapid testing device, compensate for the deficiency of manual method test.
(2) proving installation of the present invention is easy and simple to handle, economical and practical.
(3) proving installation test philosophy of the present invention is simple.
(4) device of the present invention is for the test of agent on crack resistance of concrete salt corrosion performance, and for evaluating agent on crack resistance of concrete salt corrosion performance, it is relative to prior art, and finding speed is fast, and work box environment is controlled, can grasp mensuration environment flexibly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Wherein: 1 is water tank; 2 is water outlet of water tank; 3 is water inlet; 4 is water pipe; 5 is machine for soap-bubble; 6 is work box; 7 is waterproof heating wire; 8 is rotating shaft; 9 is control desk; 10 is motor; 11 is pillar; 12 is base; 13 is concrete sample; 14 is tool box water delivering orifice; 15 is concentration and temperature measuring device.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
See Fig. 1, agent on crack resistance of concrete salt corrosion performance rapid determination device of the present invention, comprises test component, control assembly, support component and unit under test; Described test component comprises work box 6, water tank 1; Be provided with waterproof heating wire 7, machine for soap-bubble 5 and concentration and temperature measuring device 15 in work box 6, work box 6 is communicated with water tank 1 by water pipe 4, and the sidewall of work box 6 also offers tool box water delivering orifice 14.The sidewall of water tank 1 offers and the water outlet of water tank 2 of described tool box water delivering orifice 14 in same level, and the upper end of water tank 1 is provided with water inlet 3; The axial restraint of work box 6 is provided with the rotating shaft 8 that it can be driven to overturn; Support member supports water tank 1, water pipe 4 and rotating shaft 8.Support component comprises pillar 11, base 12, as shown in the figure, pillar 11 in order to hold up water pipe 4, base 12 supporting revolving shaft 8, and, on base 12 arrange motor 10 with between rotating shaft 8 by driving web member (as belt, gear set etc.) to be connected.Control assembly comprises the motor 10 rotated in order to drive shaft 8 and the control desk 9 controlling motor, i.e. electric machine controller.The controller of control desk 9 can set arbitrarily cycle regular hour, by rotating shaft 8, work box 6 be overturn 1800.
In most preferred embodiment of the present invention, described work box 6 sidewall top and the bottom are respectively provided with one group of waterproof heating wire 7.The top and bottom of work box 6 are respectively containing one group of machine for soap-bubble 5.Respectively there are a concentration and temperature measuring device 15 in the top and the bottom, front of work box 6.Tool box water delivering orifice 14 is arranged on the flanking central part of work box 6.
Work box 6 effect in test component of the present invention just concrete sample 13 can be put into inside and have enough leakproofnesss, the effect of water tank 1 ensures sufficient etchant solution with the etchant solution in supplementary work box 6 at certain altitude, water outlet of water tank 2 effect is that the solution guaranteeing to be flow to by water inlet 3 keeps certain height in water tank 1 and work box 6, work box water delivering orifice 14 and water outlet of water tank 2 are on same level height, and the effect of water pipe 4 carries etchant solution in work box 6.The effect of the water delivering orifice 14 of the flanking central part of work box 6 guarantees that liquid level remains on center height, the concentration of work box 6 and temperature measuring device 15 effect be show etchant solution in real time temperature and concentration to meet testing requirements; The temperature of upper and lower two parts heating wire can regulate and control separately, to guarantee to provide continual heat, the temperature of work box 6 upper air is raised guarantee test piece upper part is dry at short notice and the etchant solution controlling bottom in uniform temperature.Machine for soap-bubble 5 in order to provide continue bubble slowly avoid solution keep stationary state identical to guarantee solution each point concentration.Unit under test is concrete sample 13, is positioned in work box 6, and it is highly slightly lower than the height of work box 6, and front when guaranteeing that test specimen 13 is shaping when placing or bottom surface are upward.Support component effect supports connected water tank 1, work box 5, control desk 9, motor 10, and base 12, makes whole instrument held stationary.
The present invention, according to the rapid assay methods of the above agent on crack resistance of concrete salt corrosion performance rapid determination device, comprises the following steps:
1) work box 6 is put in concrete sample 13 front of forming or bottom surface upward, water inlet 3 is opened the certain density etchant solution of injection in water tank 1 is flowed out to water outlet of water tank 2, now work box internal corrosion solution is to the half of work box height, and work box water delivering orifice 14 just flows out solution;
2) work box 6 is set as required on control desk 9 and rotates time required for 180 °, and open the switch of waterproof heating wire 7 and machine for soap-bubble 5, and in process of the test real-time monitored concentration and temperature measuring device 15 to guarantee etchant solution concentration and temperature Pass Test requirement;
3) work box is after the roll-over test of certain number of times, takes out concrete sample 13, completes test, then test the various corresponding indexs of test specimen.
Claims (2)
1. an agent on crack resistance of concrete salt corrosion performance rapid determination device, is characterized in that, comprises test component, control assembly, support component and unit under test; Described test component comprises work box (6), water tank (1); Be provided with waterproof heating wire (7), machine for soap-bubble (5) and concentration and temperature measuring device (15) in described work box (6), be respectively provided with one group of waterproof heating wire (7) in work box (6) sidewall top and the bottom; Described work box (6) is communicated with water tank (1) by water pipe (4), the sidewall of work box (6) also offers tool box water delivering orifice (14); The sidewall of described water tank (1) offers and described tool box water delivering orifice (14) water outlet of water tank in same level (2), and the upper end of water tank (1) is provided with water inlet (3); The axial restraint of described work box (6) is provided with the rotating shaft (8) that it can be driven to overturn; Described support member supports water tank (1), water pipe (4) and rotating shaft (8); Described control assembly comprises the motor (10) rotated in order to drive shaft (8) and the control desk (9) controlling described motor; The top and bottom of described work box (6) are respectively containing one group of machine for soap-bubble (5); Described tool box water delivering orifice (14) is arranged on the flanking central part of work box (6); Respectively there are a concentration and temperature measuring device (15) in the top and the bottom, front of described work box (6); Described support component comprises pillar (11), base (12), pillar (11) is in order to hold up water pipe (4), base (12) supporting revolving shaft (8), and, be by driving web member between the motor (10) of the upper setting of base (12) and rotating shaft (8), described drive chain fitting is belt or gear set; The controller of control desk (9) can set arbitrarily cycle regular hour, by rotating shaft (8), work box (6) be turned over turnback; The effect of water tank (1) ensures sufficient etchant solution with the etchant solution in supplementary work box (6) at certain altitude, water outlet of water tank (2) effect is that the solution guaranteeing to be flow to by water inlet (3) keeps certain height in water tank (1) and work box (6), and work box water delivering orifice (14) and water outlet of water tank (2) are on same level height.
2. a rapid assay methods for agent on crack resistance of concrete salt corrosion performance rapid determination device described in claim 1, is characterized in that, comprise the following steps:
1) work box (6) is put in concrete sample (13) front of forming or bottom surface upward, water inlet (3) is opened injection etchant solution in water tank (1) is flowed out to water outlet of water tank (2), now work box internal corrosion solution is to the half of work box height, and work box water delivering orifice (14) just flows out solution;
2) time of work box (6) rotation required for 180 ° is set on control desk (9), and open the switch of waterproof heating wire (7) and machine for soap-bubble (5), and in process of the test real-time monitored concentration and temperature measuring device (15) to guarantee etchant solution concentration and temperature Pass Test requirement;
3) work box is after roll-over test, takes out concrete sample (13), completes test, then test the compressive strength of test specimen;
Work box (6) effect just concrete sample (13) can be put into inside and have enough leakproofnesss, the effect of water tank (1) ensures sufficient etchant solution with the etchant solution in supplementary work box (6) at certain altitude, water outlet of water tank (2) effect is that the solution guaranteeing to be flow to by water inlet (3) keeps certain height in water tank (1) and work box (6), work box water delivering orifice (14) and water outlet of water tank (2) are on same level height, the effect of water pipe (4) is conveying etchant solution in work box (6), the effect of the water delivering orifice (14) of the flanking central part of work box (6) guarantees that liquid level remains on center height, the concentration of work box (6) and temperature measuring device (15) effect be show etchant solution in real time temperature and concentration to meet testing requirements, the temperature of upper and lower two parts heating wire can regulate and control separately, to guarantee to provide continual heat, the temperature of work box (6) upper air is raised guarantee test piece upper part is dry at short notice and the etchant solution controlling bottom in uniform temperature, machine for soap-bubble (5) in order to provide continue bubble slowly avoid solution keep stationary state identical to guarantee solution each point concentration, unit under test is concrete sample (13), is positioned in work box (6), and it is highly slightly lower than the height of work box (6), and front when guaranteeing that test specimen (13) is shaping when placing or bottom surface are upward, support component effect supports connected water tank (1), work box (5), control desk (9), motor (10), and base (12), makes whole instrument held stationary.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122119.1A CN103217377B (en) | 2013-04-09 | 2013-04-09 | Rapid determination device of salt corrosion resistance performance of concrete and determination method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310122119.1A CN103217377B (en) | 2013-04-09 | 2013-04-09 | Rapid determination device of salt corrosion resistance performance of concrete and determination method thereof |
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| CN103217377A CN103217377A (en) | 2013-07-24 |
| CN103217377B true CN103217377B (en) | 2015-04-22 |
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| CN103411874B (en) * | 2013-07-25 | 2015-04-01 | 新疆水利水电科学研究院 | Test box for flowing water eroding cement concrete |
| CN104865180A (en) * | 2015-05-04 | 2015-08-26 | 徐州工程学院 | Concrete structure durability research test device and method in corrosive environment |
| CN104897562A (en) * | 2015-06-29 | 2015-09-09 | 武汉理工大学 | Method for evaluating acid tolerance of concrete |
| CN105886390B (en) * | 2016-06-28 | 2019-01-22 | 天津城建大学 | A kind of the microbiologic(al) corrosion experimental provision and experimental method of concrete |
| CN108226020A (en) * | 2017-12-22 | 2018-06-29 | 河海大学 | Electric accelerating concrete corrosion experimental rig and method under complex environment |
| CN109599315A (en) * | 2018-12-29 | 2019-04-09 | 珠海瑞能真空电子有限公司 | A kind of installing mechanism and the cabinet including the mechanism |
| CN109580469B (en) * | 2018-12-29 | 2023-07-14 | 珠海瑞能真空电子有限公司 | Aging training test equipment and process thereof |
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