CN218629599U - Auxiliary device for concrete quick freezing method freeze-proof test - Google Patents
Auxiliary device for concrete quick freezing method freeze-proof test Download PDFInfo
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- CN218629599U CN218629599U CN202222578067.6U CN202222578067U CN218629599U CN 218629599 U CN218629599 U CN 218629599U CN 202222578067 U CN202222578067 U CN 202222578067U CN 218629599 U CN218629599 U CN 218629599U
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Abstract
The utility model relates to a concrete quick freezing method freeze proof test's auxiliary device. The device is suitable for the technical field of devices for the concrete quick freezing method anti-freezing test. The utility model adopts the technical proposal that: the utility model provides a concrete quick freezing method freeze proof test's auxiliary device for arrange vibration exciter measuring bar and vibration pickup measuring bar on concrete sample surface, its characterized in that: the top cover is used for being placed on a concrete sample, and marks used for indicating the arrangement positions of the vibration exciter measuring rod and the vibration pickup measuring rod on the concrete sample are arranged on the top cover. So, because of the concrete test piece size unanimity that uses in the frost method frost test of concrete fast, when arranging the position to vibration exciter measuring bar and vibration pickup measuring bar before experimental and fix a position, the position of sign is the position of arranging of vibration exciter measuring bar and vibration pickup measuring bar promptly on the top cap of suit on the concrete test piece, convenient to use.
Description
Technical Field
The utility model relates to a concrete quick freezing method freeze proof test's auxiliary device. The device is suitable for the technical field of devices for the concrete quick freezing method anti-freezing test.
Background
During the roller compacted concrete quick freezing method frost resistance test, the relative dynamic elastic modulus value and the mass loss rate of a test piece need to be measured so as to determine the frost resistance grade of the roller compacted concrete. The dimensions of the roller compacted concrete antifreeze specimen are 400mm multiplied by 100mm prism.
During testing, the test piece is taken out and put into (20 +/-3) DEG C water for soaking 4 days before the test age is reached, and the test piece cured in the water can be directly tested when the test piece reaches the test age. Wiping off the moisture on the surface of the test piece after reaching the test age, weighing and recording the initial mass, placing the test piece on a test workbench, slightly pressing a vibration exciter and a measuring rod of a vibration pickup on the surface of the test piece, coating a thin layer of butter or vaseline on the contact surface of the measuring rod and the test piece as a coupling medium, and measuring the transverse self-vibration frequency of the test piece when the pressure of the measuring rod is proper and no noise appears. The vibration exciter is arranged at the position 1/2 of the length and height of the lateral surface of the test piece in the molding length of the test piece, and at the position 1/2 of the width and height of the left lateral surface of the test piece in the molding height of the test piece; the mounting position of the vibration pickup is 5mm from the molding length of the test piece to the right side end, and 1/2 of the width and height from the molding height of the test piece to the right side. In the test process, if more than 2 resonance peaks are found, the transmitting frequency is firstly adjusted to make the amplitude indicated by the microampere meter or the oscillograph be maximum, then the vibration pickup with the length of 5mm towards the right end part of the side surface is moved to the length of the 0.224 test piece, if the microampere meter indicates zero, the frequency value is the real resonance frequency.
At present, manual ruler amount positioning is generally adopted during installation, a ruler is required to be placed on the surface of a concrete test piece by personnel before measuring rods of a vibration exciter and a vibration pickup are pressed on the surface of the test piece, then the arrangement positions of the measuring rods of the vibration exciter and the vibration pickup are determined, and the installation work needs a long time and takes time and is not accurate.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the technical problem, the utility model provides a can be fast accurate carry out the concrete of location of installing on the position of vibration exciter and vibration pickup on the test piece freeze proof test's auxiliary device fast.
The utility model adopts the technical proposal that: the utility model provides a concrete quick freezing method freeze proof test's auxiliary device for arrange vibration exciter measuring bar and vibration pickup measuring bar on concrete sample surface, its characterized in that: the top cover is used for being placed on a concrete sample, and marks used for indicating the arrangement positions of the vibration exciter measuring rod and the vibration pickup measuring rod on the concrete sample are arranged on the top cover. So, because of the concrete test piece size unanimity that uses in the frost method frost test of concrete fast, when arranging the position to vibration exciter measuring bar and vibration pickup measuring bar before experimental and fix a position, the position of sign is the position of arranging of vibration exciter measuring bar and vibration pickup measuring bar promptly on the top cap of suit on the concrete test piece, convenient to use.
The top cap has the horizontal plate that is used for placing on concrete sample top surface, and fixed mounting has the vertical board with concrete sample left and right sides face complex on the both ends about the horizontal plate, and fixed mounting has the horizontal vertical board with concrete sample leading flank complex on the front end of horizontal plate, and the lower extreme of vertical board and horizontal vertical board all is located the intermediate position department of concrete sample when the top cap is arranged on concrete sample. So, when the top cap suit is on concrete sample, the lower extreme position of vertical plate and horizontal vertical plate all is located concrete sample's intermediate position department, and vibration exciter measuring staff and vibration pickup measuring staff all are located concrete sample side height intermediate position department when placing the lower extreme of vertical plate and horizontal vertical plate with vibration exciter measuring staff and vibration pickup measuring staff, highly carry on spacingly to arranging of vibration exciter measuring staff and vibration pickup measuring staff on concrete sample surface.
The lower end of a transverse vertical plate on the front side of the concrete sample is provided with a transverse scale, the lower ends of longitudinal vertical plates on the left side and the right side of the concrete sample are provided with longitudinal scales, and the marks are arranged on the transverse scales and the longitudinal scales and correspond to the arrangement positions of the vibration exciter measuring rod and the vibration pickup measuring rod. So, when the top cap suit is on concrete sample, through longitudinal scale and horizontal scale, make things convenient for personnel to confirm the position of arranging of vibration exciter measuring staff and vibration pickup measuring staff, the sign that sets up simultaneously on transverse scale and longitudinal scale is convenient for personnel's short-term determination vibration exciter measuring staff and vibration pickup measuring staff arrange the position.
The horizontal plate, the transverse vertical plate and the longitudinal vertical plate are all made of organic glass materials.
The top cover is provided with a handle. So, conveniently before experimental the beginning with the top cap suit on concrete sample, make things convenient for personnel to take off the top cap from concrete sample through the handle simultaneously after vibration exciter measuring staff and vibration pickup measuring staff arrange the position and confirm.
The utility model has the advantages that: the utility model discloses a set up the horizontal plate of taking the handle, set up vertical plate and horizontal vertical plate under the horizontal plate, scale and the sign of setting at vertical plate and horizontal vertical plate lower extreme, make things convenient for personnel to suit the device on the concrete test piece before the experiment begins, carry out quick location to the vibration exciter measuring staff and the position of arranging of picking up the vibration ware measuring staff, accomplish simultaneously to the vibration ware measuring staff and pick up the vibration ware measuring staff arrange the rear and make things convenient for personnel to take off this device from the concrete test piece through the handle, the efficiency that personnel arranged vibration exciter measuring staff and picking up the vibration ware measuring staff in the experimentation has been improved greatly.
Drawings
FIG. 1: the structure of the utility model is schematically shown.
FIG. 2: the utility model discloses a device suit is the schematic diagram on the concrete test piece again.
In the figure: 1. a horizontal plate; 2. a transverse vertical plate; 3. a longitudinal vertical plate; 4. a lateral scale; 5. a longitudinal scale; 6. a handle.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
This embodiment is a concrete quick freezing method freeze proof test's auxiliary device, has and is used for the top cap of suit on the concrete sample, and experimental concrete sample size is 400mm x 100mm.
In this embodiment, the top cover has a horizontal plate 1 for placing on the top surface of the concrete sample, and the size of the horizontal plate 1 is larger than the size of the top surface of the concrete sample. A transverse vertical plate 2 is fixedly arranged below the front end of a horizontal plate 1 corresponding to the lateral side of the length of the concrete sample, and the size of the transverse vertical plate 2 is 400mm multiplied by 50mm; vertical plates 3 are fixedly arranged below the left end and the right end of the horizontal plate 1, and the size of each vertical plate 3 is 100mm multiplied by 50mm. Horizontal vertical plate 2, vertical plate 3 all are perpendicular with horizontal plate 1, so when placing horizontal plate 1 on concrete sample upper surface, horizontal vertical plate 2 and vertical plate 3 homoenergetic and concrete sample lateral wall cooperation.
In this embodiment, the horizontal plate 1, the horizontal vertical plate 2 and the vertical plate 3 are made of organic glass. Thus, the device can keep good falling resistance under the condition of higher permeability.
In this embodiment, a horizontal scale 4 is formed at the lower end of the horizontal vertical plate 2, and a vertical scale 5 is formed at the lower end of the vertical plate 3. Scales are uniformly arranged on the transverse scale 4 from left to right, and marks are arranged at the scales of 200mm, 310.4mm and 395mm of the transverse scale 4; scales are arranged on the longitudinal scale 5 from left to right, and marks are arranged on the scales of 50mm of the longitudinal scale 5.
In this embodiment, in order to facilitate the person to sleeve the device on the concrete sample before the start of the test and to take the device off the concrete sample after the determination of the arrangement positions of the vibration exciter measuring rod and the vibration pickup measuring rod is completed, a handle 6 is provided at the middle position above the horizontal plate 1.
The using method of the embodiment comprises the following steps: placing a concrete test piece on a test workbench, holding a handle 6 by a person, and sleeving a top cover on the concrete test piece, wherein a horizontal plate 1 is contacted with the top surface of the concrete test piece, a transverse vertical plate 2 is contacted with the length of the concrete test piece towards the side surface, and a longitudinal vertical plate 3 is contacted with the height of the concrete test piece towards the side surface;
marking positions corresponding to marks of 200mm, 310.4mm and 395mm on the transverse scale 4 and positions corresponding to marks of 50mm on the longitudinal scale 5 on the surface of the concrete sample by using a marker pen by personnel;
a person holds the handle 6 and takes the top cover off the concrete test piece;
and moving the vibration exciter measuring rod and the vibration pickup measuring rod to the marked position on the surface of the concrete sample.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a concrete quick freezing method freeze proof test's auxiliary device for arrange vibration exciter measuring bar and vibration pickup measuring bar on concrete sample surface, its characterized in that: the top cover is used for being placed on a concrete sample, and marks used for indicating the arrangement positions of the vibration exciter measuring rod and the vibration pickup measuring rod on the concrete sample are arranged on the top cover.
2. The auxiliary device for the frost resistance test of the concrete quick freezing method according to claim 1, wherein: the top cap has horizontal plate (1) that is used for placing on concrete sample top surface, fixed mounting has vertical board (3) with concrete sample left and right sides face complex on the both ends about horizontal plate (1), fixed mounting has horizontal perpendicular board (2) with concrete sample leading flank complex on the front end of horizontal plate (1), and the lower extreme of vertical perpendicular board (3) and horizontal perpendicular board (2) all is located the intermediate position department of concrete sample when the top cap is arranged on concrete sample.
3. The auxiliary device for the frost resistance test of the concrete quick freezing method according to claim 2, wherein: the system of horizontal vertical plate (2) lower extreme system of concrete sample front side has horizontal scale (4), and the system of vertical plate (3) lower extreme system of the concrete sample left and right sides has longitudinal scale (5), the sign sets up on horizontal scale (4) and longitudinal scale (5) and corresponds with vibration exciter measuring staff and vibration pickup measuring staff arrangement position.
4. The auxiliary device for the frost resistance test of the concrete quick freezing method according to claim 2, wherein: the horizontal plate (1), the transverse vertical plate (2) and the longitudinal vertical plate (3) are all made of organic glass materials.
5. The auxiliary device for the frost resistance test of the concrete quick freezing method according to claim 1, wherein: and a handle (6) is arranged on the top cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222578067.6U CN218629599U (en) | 2022-09-28 | 2022-09-28 | Auxiliary device for concrete quick freezing method freeze-proof test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222578067.6U CN218629599U (en) | 2022-09-28 | 2022-09-28 | Auxiliary device for concrete quick freezing method freeze-proof test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218629599U true CN218629599U (en) | 2023-03-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222578067.6U Active CN218629599U (en) | 2022-09-28 | 2022-09-28 | Auxiliary device for concrete quick freezing method freeze-proof test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218629599U (en) |
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2022
- 2022-09-28 CN CN202222578067.6U patent/CN218629599U/en active Active
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