CN113218762A - Strength detection device and method for high-performance concrete - Google Patents
Strength detection device and method for high-performance concrete Download PDFInfo
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- CN113218762A CN113218762A CN202110543105.1A CN202110543105A CN113218762A CN 113218762 A CN113218762 A CN 113218762A CN 202110543105 A CN202110543105 A CN 202110543105A CN 113218762 A CN113218762 A CN 113218762A
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- 238000001514 detection method Methods 0.000 title claims abstract description 71
- 239000004574 high-performance concrete Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000004567 concrete Substances 0.000 claims abstract description 53
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 238000007667 floating Methods 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 230000009471 action Effects 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
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- 238000006703 hydration reaction Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
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- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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Abstract
The invention discloses a strength detection device for high-performance concrete and a detection method thereof, and the device comprises a detection accommodating unit and a strength force application unit which are matched for use, wherein the detection accommodating unit comprises a shell and a detection platform, a laser liquid level detector is arranged on the shell, a pressure sensor is arranged below the detection platform, the strength force application unit comprises a lifting driving part, a lifting rod and a pressing block which are connected, and a floating body is arranged at one end of the lifting rod, which is close to the pressing block; according to the invention, the concrete product to be detected is pressurized in water, and when the product is damaged by pressure, the crumbs which are blown away cannot splash around under the resistance action of water, so that the use safety performance of the device is ensured; set up laser liquid level detector above the surface of water, combine the influence to the water level when the body is down simultaneously, through laser liquid level detector monitoring surface of water position information, when the surface of water altitude variation is greater than predetermined threshold value, show to detect concrete product and damage, the work of controller in time stopping lift drive portion this moment.
Description
Technical Field
The invention relates to the technical field of concrete detection, in particular to a strength detection device and a detection method for high-performance concrete.
Background
The high-performance concrete is prepared by adopting common raw materials and a conventional construction process and adding an additive and an admixture, and has high workability, high strength and high durability and excellent comprehensive performance. The method comprises the following steps: 1) the mixture is in a high-plasticity or fluid state, can be pumped, does not segregate and is convenient to pour and compact; 2) the volume is stable in the setting and hardening process and after hardening, the hydration heat is low, no fine crack is generated, and the creep is small; 3) has high impermeability. The high workability is the primary condition which must be possessed by high-performance concrete, namely high fluidity, high separation resistance, high clearance permeability, high filling property, high compactness and high stability; and simultaneously has low-cost technology, economy and reasonableness.
At present, the concrete strength detection technology is widely applied to the aspects of concrete construction quality control, acceptance, identification, evaluation and the like, the concrete strength detection technology commonly used in China is divided into nondestructive detection and micro-damage detection, the detection types are various, but the existing high-performance concrete strength detection device still has the problems that the detection start-stop performance is difficult to control, and when the concrete is damaged, the broken pieces are easy to break out to damage machines and detection personnel, for example, the arrangement of a protection box in the high-performance concrete strength detection device with the application number of 201921110837.6 is beneficial to preventing the broken concrete pieces from damaging the working personnel, preventing the broken concrete pieces from splashing to damage the machines, and conveniently cleaning the broken concrete pieces, and being beneficial to prolonging the service life and being convenient to use, but the processing mode not only can generate larger noise, but also can not completely avoid the problem of the broken pieces from breaking out, of course, the control can be carried out only by manually controlling the start and stop or limiting the descending height through a limiting device, so that the problem that the start and stop performance is difficult to control still exists.
Disclosure of Invention
The invention aims to provide a strength detection device and a detection method for high-performance concrete, aiming at the defects and the defects of the prior art, and the concrete product to be detected is immersed into water based on the characteristic that the high-performance concrete has high compactness and the resistance characteristic of water, so that the phenomenon that chips are broken away is avoided by using the resistance of the water to the chips, and the lifting driving part is timely controlled to stop descending work by monitoring the position information of the water surface.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a strength detection device for high-performance concrete, which comprises a detection accommodating unit and a strength force application unit which are matched, the detection containing unit is used for placing a concrete product to be detected, the strength force application unit is used for applying pressure to the concrete product to be detected, the detection accommodating unit comprises a shell capable of being filled with liquid and a detection platform positioned at the bottom of an inner cavity of the shell, the upper part of the shell is provided with a laser liquid level detector for detecting the height of the liquid level, a pressure sensor is arranged below the detection platform, the strength force application unit comprises a lifting driving part, a lifting rod and a pressing block which are connected, one end of the lifting rod close to the pressing block is provided with a floating body, the top of casing is seted up the confession the briquetting with the opening of lifter business turn over, laser liquid level detector the lift drive division with pressure sensor all with the controller electric connection.
Preferably, the clamping assembly for transversely clamping the concrete product to be detected is further uniformly arranged in the shell and comprises a transverse telescopic driving part, a telescopic rod and a clamping block which are connected, the telescopic driving part is fixed on the shell, and the telescopic driving part is electrically connected with the controller.
Preferably, the detection platform is connected with the shell through a bolt, and the pressure sensor is located between the detection platform and the shell.
Preferably, the edge of the opening is provided with a flexible shield.
Preferably, the top of the housing is provided with an openable cover plate, and the opening is provided on the cover plate.
Preferably, the lifting device further comprises a rack, and the shell and the lifting driving part are respectively connected with the rack.
Preferably, a roller for movement is disposed on the stage.
Preferably, a water level sensor is arranged on the floating body, and a water level detection position of the water level sensor is located at one third to one half of the height of the floating body.
Preferably, the floating body has an inverted cone structure.
The invention also provides a strength detection method for the high-performance concrete, which comprises the following steps:
preparation work: placing a concrete product to be detected on a detection platform for fixing, then filling water into the shell, ensuring that the concrete product to be detected is immersed in the water, starting a laser liquid level detector to detect water surface position information, and transmitting the water surface position information to a controller; starting a lifting driving part in the strength force application unit through a controller, driving a pressing block to move downwards through a lifting rod until the pressing block is pressed with the concrete product to be detected, recording pressure information by a pressure sensor, transmitting the pressure information to the controller, and immersing a part of a floating body in water until the immersion depth reaches the installation position of a water level sensor; meanwhile, water surface position information is detected through the laser liquid level detector and transmitted to the controller;
detection work: the controller instructs the lifting driving part to continue to operate, the acting force between the pressing block and the concrete product to be detected is continuously increased, the pressure sensor continuously records pressure information and transmits the pressure information to the controller, when the concrete product to be detected is damaged under the action of pressure, the floating body instantly moves downwards along with the lifting rod, the water level instantly rises, and when the water level position height detected by the laser liquid level detector is higher than the water level position height when the pressing block is pressed with the concrete product to be detected, the controller stops the lifting driving part.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the strength detection device for high-performance concrete, provided by the invention, the concrete product to be detected is pressurized in water, and when the product is damaged by pressure, the crumbs which are blown away cannot splash around under the resistance action of water, so that the use safety performance of the device is ensured; set up laser liquid level detector on the surface of water, combine the influence to the water level when the body is down simultaneously, through laser liquid level detector monitoring surface of water position information, when the surface of water altitude variation is greater than predetermined threshold value, show to wait to detect concrete product and damage, the work of controller in time stopping lift drive portion this moment has avoided because stop untimely mixed and disorderly and the loss scheduling problem of equipment that leads to pressure measurement data.
2. According to the strength detection device for high-performance concrete, the water level sensor is arranged on the floating body, so that the floating body can be immersed into a part of water, the problem that the water surface is changed violently due to the fact that the floating body suddenly moves like water is solved, and the water surface can be changed rapidly and stably when the floating body moves downwards; further, set the body to the back taper for after the body immerses in the water, can be along with the increase of volume at the in-process that descends, make the water level rising speed increase, more can be effective and timely control lift drive portion stop down trend.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view showing the overall structure of a strength testing apparatus for high performance concrete according to the present invention;
FIG. 2 is an enlarged view of the internal structure of FIG. 1;
wherein, 1 rack, 2 casings, 3 testing platforms, 4 laser liquid level detectors, 5 pressure sensors, 6 lifting driving parts, 7 lifting rods, 8 pressing blocks, 9 floating bodies, 10 openings, 11 transverse telescopic driving parts, 12 telescopic rods, 13 clamping blocks and 14 water level sensors.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
The invention aims to provide a strength detection device and a detection method for high-performance concrete, aiming at the defects and the defects of the prior art, and the concrete product to be detected is immersed into water based on the characteristic that the high-performance concrete has high compactness and the resistance characteristic of water, so that the phenomenon that chips are broken away is avoided by using the resistance of the water to the chips, and the lifting driving part is timely controlled to stop descending work by monitoring the position information of the water surface.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 2, the invention provides a strength detection device for high-performance concrete, which includes a detection accommodating unit and a strength force application unit, wherein the detection accommodating unit and the strength force application unit are used cooperatively, the detection accommodating unit is used cooperatively to complete detection work, the detection accommodating unit has a storage fixing function and a splash prevention function, for example, the storage fixing of an object to be detected is realized through a limiting block and a limiting recess, and the splash of debris is prevented by forming a relatively closed space, that is, the detection accommodating unit is used for placing a concrete product to be detected, and correspondingly, the strength force application unit is used for applying pressure to the concrete product to be detected; the detection accommodating unit comprises a shell 2 capable of being filled with liquid and a detection platform 3 positioned at the bottom of an inner cavity of the shell 2, wherein the liquid can be water or other liquid, such as hydraulic oil and the like; the upper part of the shell 2 is provided with a laser liquid level detector 4 for detecting the height of the liquid level, wherein the arrangement position of the laser liquid level detector 4 depends on the detection precision of the laser liquid level detector, and meanwhile, the laser liquid level detector 4 is prevented from being immersed by water, and as a preferable mode, an excitation emission opening of the laser liquid level detector 4 is vertically downward; a pressure sensor 5 is arranged below the detection platform 3, the type of the pressure sensor 5 is adjusted adaptively according to the detection range, the strength force application unit comprises a lifting driving part 6, a lifting rod 7 and a pressing block 8 which are connected, a floating body 9 is arranged at one end, close to the pressing block 8, of the lifting rod 7, an opening 10 for the pressing block 8 and the lifting rod 7 to enter and exit is formed in the top of the shell 2, and the laser liquid level detector 4, the lifting driving part 6 and the pressure sensor 5 are all electrically connected with a controller; the working process is as follows: firstly, placing and installing the concrete product to be detected on the detection platform 3, wherein the placing position is preferably the middle part, and the installation mode can adopt the installation mode of the concrete product in the prior art; then, filling liquid, not only ensuring that the concrete product to be detected is immersed by the liquid, but also ensuring that the liquid cannot be too close to the laser liquid level detector 4, and certainly, if the laser liquid level detector 4 is replaced by other instruments capable of detecting liquid level changes, the liquid can be contacted with the corresponding instruments; starting the lifting driving part 6, so that the lifting rod 7 drives the pressing block 8 to move downwards and gradually applies pressure to the concrete product to be detected, and the floating body 9 preferably enters below the liquid level of the liquid before the pressing block 8 applies pressure; according to the scheme, the concrete product to be detected is pressurized in water, and when the product is damaged by pressure, the broken fragments cannot splash around under the resistance action of the water, so that the use safety performance of the device is ensured; set up laser liquid level detector 4 on the surface of water, to the influence of water level when combining simultaneously body 9 to descend, through laser liquid level detector 4 monitoring surface of water position information, when surface of water altitude variation is greater than predetermined threshold value, show to wait to detect concrete product and damage, the work of controller in time stopping lift drive portion 6 this moment has avoided because stop untimely mixed and disorderly and the loss scheduling problem of equipment that leads to pressure measurement data.
As a fixing mode of a concrete product to be detected in the shell 2, a clamping assembly for transversely clamping the concrete product to be detected is uniformly arranged in the shell 2, the clamping assembly comprises a transverse telescopic driving part 11, a telescopic rod 12 and a clamping block 13 which are connected, the telescopic driving part is fixed on the shell 2, and the telescopic driving part is electrically connected with a controller; after the concrete product to be detected is placed on the detection platform 3, the transverse telescopic driving part 11 is started, the telescopic rod 12 drives the clamping block 13 to move, and the clamping surface of the clamping block 13 can be set to be of a structure which is adaptive to the concrete product to be detected, so that the concrete product to be detected can be stably clamped; the transverse telescopic driving part 11 is a structure with a telescopic function such as an air cylinder, and the telescopic rod 12 can be integrated with the transverse telescopic driving part 11; such a structure can also be referred to for the corresponding elevation drive section 6.
As another fixing mode or a fixing mode for assisting the clamping assembly, the detection platform 3 and the shell 2 are connected through bolts, and the pressure sensor 5 is positioned between the detection platform 3 and the shell 2.
To avoid debris flying out at the opening 10, the rim of the opening 10 is provided with a flexible shield, preferably of pleated skirt-type construction, in the present invention.
As a structure for facilitating the fixed installation of the concrete product to be tested, the top of the housing 2 of the present invention is provided with an openable cover plate, such as a hinge structure, on which the opening 10 is provided, and the cover plate is opened when in use, the concrete product to be tested is loaded, and then the pressing block 8 is moved down through the opening 10 when the cover plate is closed.
In order to be convenient to install and fix, the lifting device further comprises a rack 1, and the shell 2 and the lifting driving part 6 are respectively connected with the rack 1, namely the lifting device is integrated into a whole through the rack 1, so that the lifting device is convenient to use.
In order to facilitate the movement of the integrated device to a position, the gantry 1 of the present invention is provided with rollers for movement.
As an optimized implementation scheme, a water level sensor 14 is arranged on a floating body 9, the water level detection position of the water level sensor 14 is positioned at one third to one half of the height of the floating body 9, the water level sensor 14 is electrically connected with a controller, and when the water level sensor 14 detects that the immersion depth of the floating body 9 is insufficient, an alarm is given out through an alarm or the controller displays the immersion depth and the like to inform an operator, so that water is added manually or water is supplied through an automatic water supply pipeline; in addition, the water level sensor 14 is arranged on the floating body 9, so that the floating body 9 can be immersed into a part of water, the problem that the water surface is changed violently because the floating body 9 suddenly moves like water is solved, and the water surface can be changed quickly and stably when the floating body 9 descends;
furthermore, the floating body 9 is in an inverted cone structure, namely the floating body 9 is set to be inverted cone, so that after the floating body 9 is immersed in water, the water level rising speed can be increased along with the increase of the volume in the descending process, and the descending trend of the lifting driving part 6 can be controlled effectively and timely.
The invention also provides a strength detection method for the high-performance concrete, which comprises the following steps:
preparation work: placing a concrete product to be detected on a detection platform 3 for fixing, then filling water into the shell 2, ensuring that the concrete product to be detected is immersed in the water, starting a laser liquid level detector 4 to detect water surface position information, and transmitting the water surface position information to a controller; starting a lifting driving part 6 in the strength force application unit through a controller, driving a pressing block 8 to move downwards through a lifting rod 7 until the pressing block 8 is pressed with a concrete product to be detected, recording pressure information by a pressure sensor 5, transmitting the pressure information to the controller, immersing a part of a floating body 9 in water, and enabling the immersion depth to reach the installation position of a water level sensor 14; meanwhile, water surface position information is detected through the laser liquid level detector 4 and transmitted to the controller;
detection work: controller instruction lift drive 6 continues to move, the effort between 8 and the concrete product that awaits measuring of briquetting lasts the increase, pressure sensor 5 lasts the record pressure information, and give the controller with pressure information transmission, when waiting to detect concrete product damage under the effect of pressure, body 9 is down along with lifter 7 in the twinkling of an eye, the surface of water liquid level rises in the twinkling of an eye, when the surface of water position height that laser liquid level detector 4 detected, when being higher than 8 and waiting to detect the surface of water position height when concrete product pressfitting, the controller stops lift drive 6.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the invention and the core idea thereof; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (10)
1. The utility model provides an intensity detection device for high performance concrete, its characterized in that, including the detection holding unit and the intensity application of force unit that cooperate the use, it is used for placing and waits to detect concrete product to detect the holding unit, intensity application of force unit is used for right it waits to detect concrete product and exerts pressure, it includes the casing that can fill liquid and is located to detect the holding unit the testing platform of casing inner chamber bottom, the upper portion of casing is provided with and is used for detecting the laser liquid level detector of liquid level, testing platform's below is provided with pressure sensor, intensity application of force unit is including the lift drive portion, lifter and the briquetting that are connected, the lifter is close to the one end of briquetting is provided with the body, the top of casing is seted up and is supplied the briquetting and the opening that the lifter passed in and out, laser liquid level detector, intensity application of force unit are located the casing inner chamber bottom, the lifting drive portion that the lifter passes in and is provided with the body, the opening that supplies the briquetting and the briquetting to pass in and the lifter, the laser liquid level detector, the detection of the detector, the detection of the intensity application of force unit is provided with the detection of the body, the detection of the high performance concrete product, the detection of the high performance, the detection of the high performance concrete product, the detection of, The lifting driving part and the pressure sensor are electrically connected with a controller.
2. The strength detection device for the high-performance concrete according to claim 1, wherein clamping assemblies for transversely clamping the concrete product to be detected are further uniformly arranged in the shell, each clamping assembly comprises a transverse telescopic driving portion, a telescopic rod and a clamping block, the transverse telescopic driving portions are connected, the telescopic driving portions are fixed on the shell, and the telescopic driving portions are electrically connected with the controller.
3. The strength testing device for high-performance concrete according to claim 2, wherein the testing platform is connected with the housing by bolts, and the pressure sensor is located between the testing platform and the housing.
4. The strength testing device for high performance concrete according to claim 1, wherein the edge of the opening is provided with a flexible shield.
5. The strength testing device for high performance concrete according to claim 4, wherein the top of the housing is provided with an openable cover plate, and the opening is provided on the cover plate.
6. The strength testing apparatus for high performance concrete according to claim 1, further comprising a stand, wherein the housing and the elevating driving part are respectively connected to the stand.
7. The strength detecting apparatus for high performance concrete according to claim 6, wherein a roller for movement is disposed on the stage.
8. The strength detecting device for high performance concrete according to any one of claims 1 to 7, wherein a water level sensor is provided on the floating body, and a water level detecting position of the water level sensor is located at one third to one half of the height of the floating body.
9. The strength testing device for high-performance concrete according to claim 8, wherein the floating body has an inverted cone structure.
10. A strength detection method for high-performance concrete is characterized by comprising the following steps:
preparation work: placing a concrete product to be detected on a detection platform for fixing, then filling water into the shell, ensuring that the concrete product to be detected is immersed in the water, starting a laser liquid level detector to detect water surface position information, and transmitting the water surface position information to a controller; starting a lifting driving part in the strength force application unit through a controller, driving a pressing block to move downwards through a lifting rod until the pressing block is pressed with the concrete product to be detected, recording pressure information by a pressure sensor, transmitting the pressure information to the controller, and immersing a part of a floating body in water until the immersion depth reaches the installation position of a water level sensor; meanwhile, water surface position information is detected through the laser liquid level detector and transmitted to the controller;
detection work: the controller instructs the lifting driving part to continue to operate, the acting force between the pressing block and the concrete product to be detected is continuously increased, the pressure sensor continuously records pressure information and transmits the pressure information to the controller, when the concrete product to be detected is damaged under the action of pressure, the floating body instantly moves downwards along with the lifting rod, the water level instantly rises, and when the water level position height detected by the laser liquid level detector is higher than the water level position height when the pressing block is pressed with the concrete product to be detected, the controller stops the lifting driving part.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114323428A (en) * | 2021-12-24 | 2022-04-12 | 南京柯瑞特种陶瓷股份有限公司 | Isostatic pressing detector for ceramic honeycomb carrier |
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| CN206208661U (en) * | 2016-12-01 | 2017-05-31 | 郑州嘉德机电科技有限公司 | Quick-fried pearl suitable for quick-fried pearl cigarette breaks the automatic detection device of detonation pressure power |
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