CN111307630A - Device and method for detecting impact resistance of concrete - Google Patents
Device and method for detecting impact resistance of concrete Download PDFInfo
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- CN111307630A CN111307630A CN202010321600.3A CN202010321600A CN111307630A CN 111307630 A CN111307630 A CN 111307630A CN 202010321600 A CN202010321600 A CN 202010321600A CN 111307630 A CN111307630 A CN 111307630A
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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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
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
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Abstract
The invention discloses a concrete impact resistance detection device which comprises a base and a concrete block, wherein a plurality of supporting legs are welded on the lower end face of the base, an adjusting box is welded on one section of the upper end face of the base, a vertical rectangular box is welded on the top of the adjusting box, vertical impact devices with adjustable heights are arranged on the adjusting box and the rectangular box, a side impact device is arranged at one end of the base, which is far away from the adjusting box, and four vertical fixing folded plates are welded on the upper end face of the base, which is positioned in the middle of the base. Has the advantages that: when the impact block falls and impacts each time, the circuit controls the coil to be electrified to generate a magnetic field, the iron limiting block slides into the cavity under the action of the magnetic field, the impact block loses the fixation limitation of the limiting block to complete free falling, the instability of manual control is avoided, the falling point area of the impact block is stable each time, the stress of a test piece is concentrated, and the detection result is more accurate and reasonable.
Description
Technical Field
The invention relates to the technical field of concrete performance testing, in particular to a concrete impact resistance detection device.
Background
With the rapid development of the economic level in China, the dynamic damage effect of high-speed, high-frequency and high-load impact of vehicle load on traffic infrastructure is more and more obvious, and higher requirements are put forward on the impact resistance of road materials. Although cement concrete has a series of advantages of high strength, good stability, strong bearing capacity and the like, the cement concrete has obvious brittleness and poor impact resistance, and is easy to crack and damage under the action of dynamic load of vehicles, so that the development of a cement concrete material with excellent impact resistance plays an important role in improving the durability of road infrastructure.
Current concrete impact resistance's detection device only carries out vertical impact test to the concrete from the top of concrete to carrying out impact resistance and detecting, make the testing result do not have the comprehensiveness, also can influence the accuracy of testing result, and detection device's whereabouts strikes highly fixed, can not improve experiment effect and experimental efficiency through reasonable adjustment height, makes detection device get the suitability relatively poor, and is not convenient nimble enough.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the concrete impact resistance detection device only performs a vertical impact test on the concrete from the upper side of the concrete to detect the impact resistance, so that the detection result has no comprehensiveness, the accuracy of the detection result is influenced, the falling impact height of the detection device is fixed, the experiment effect and the experiment efficiency cannot be improved by reasonably adjusting the height, and the detection device has poor applicability.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a concrete impact resistance's detection device, includes base and concrete piece, the lower terminal surface welding of base has a plurality of supporting legss, the welding of one section position of base up end has an adjusting box, the welding of the top of adjusting box has a vertical rectangle case, be equipped with but height-adjusting vertical impact device on adjusting box and the rectangle case, the one end that the adjusting box was kept away from to the base is equipped with side impact device, the welding of base up end position department in intermediate position has four vertical fixed folded plates.
In the above-mentioned device for detecting concrete impact resistance, the height-adjustable vertical impact device includes a threaded column, two ends of the threaded column are respectively rotatably connected with the top and bottom walls of the rectangular box through bearings, the lower end of the threaded column penetrates through the bottom wall of the rectangular box and the top wall of the adjusting box, a first bevel gear is coaxially welded at one end of the threaded column located in the adjusting box, a rotating shaft penetrates through the wall of one side of the adjusting box far away from the fixed folded plate, the rotating shaft is rotatably connected with the side wall of the adjusting box through bearings, a second bevel gear is coaxially welded at one end of the rotating shaft located in the adjusting box, the first bevel gear and the second bevel gear are engaged with each other, a crank handle is welded at one end of the rotating shaft located outside the adjusting box, and a lifting sleeve is rotatably connected with the threaded column in the rectangular box through threads, the lifting sleeve is characterized in that the peripheral side face of the lifting sleeve is in sliding connection with the peripheral inner wall of the rectangular box, a lifting groove is formed in one side, close to the fixed folded plate, of the rectangular box, the lifting groove is communicated with the interior of the rectangular box, a lifting plate is connected in the lifting groove in a sliding mode, and the lifting plate is located at one end, located in the lifting groove, of the lifting groove and fixedly connected with the lifting sleeve.
In foretell detection device for concrete shock resistance, a intercommunicating pore has been seted up to the one end that the lift cover was kept away from to the lifter plate, sliding connection has an impact block in the intercommunicating pore, a cavity has been seted up to the lifter plate in intercommunicating pore department position, the one end and the intercommunicating pore intercommunication of cavity, sliding connection has a restriction piece in the cavity, be equipped with a spring coupling restriction piece in the cavity, be equipped with the coil in the chamber wall of cavity, a restriction groove has been seted up on the lateral wall of impact block, the one end that first spring was kept away from to the restriction piece offsets with the cell wall in restriction groove, the lower extreme of impact block is established into the toper structure.
In foretell detection device of concrete shock resistance, the side strikes the device and includes the track board, the track board comprises two long slabs and a short slab, the both ends of short slab respectively with two long slab vertical weld, two long slab and one the short slab all welds on the base and is U type structure.
In foretell detection device for concrete shock resistance, two sliding connection has a piece to promote between the long slab, promote the lower terminal surface of piece and the up end sliding connection of base, it has a second spring to promote the piece and be close to short slab one side welding, the second spring is kept away from the one end and the short slab welding that promote the piece, two a spout has all been seted up on the long slab, the both sides welding that promotes the piece all has the bulge piece, the bulge piece that promotes the piece both sides respectively with the spout sliding connection of both sides long slab.
In the above device for detecting the impact resistance of the concrete, the limiting block is made of a ferrous material, and the coil is externally connected with a circuit switch.
In the device for detecting the impact resistance of the concrete, the number of the supporting legs is four, a layer of anti-slip mat is glued at the bottom of each supporting leg, each fixing folded plate is formed by welding two plates for 90 degrees, and the four fixing folded plates are abutted to four corners of a concrete block.
The invention also discloses a use method of the concrete impact resistance detection device, which comprises the following steps:
s1: adjusting the base to horizontally place the base, then placing the concrete block in the four fixing folded plates, and enabling four corners of the concrete block to respectively abut against the four fixing folded plates to be fixed in position;
s2: according to the height required by detection, the crank handle is rotated to rotate the threaded column through transmission, so that the lifting sleeve rises or slides downwards to adjust the height of the lifting plate;
s3: the coil is electrified to generate a magnetic field, the iron limiting block slides into the cavity under the action of the magnetic field, one end of the limiting block in the limiting groove of the impact block slides out of the limiting groove, and the impact block is not limited by a free falling body to impact the concrete block;
s4: after the coil is powered off, the impact block is inserted into the communicating hole again, and the limiting block is used for fixing the impact block under the action of the first spring;
s5: repeating the steps S3 and S4 to enable the impact block to impact the concrete block for multiple times until the concrete block is broken and damaged, and recording the impact times;
s6: replacing a new concrete block, placing the impact block into the track slab, sliding the pushing block backwards, compressing the second spring, releasing the pushing block, ejecting the impact block along the opening direction of the track slab by the pushing block, and impacting the side surface of the concrete block;
s7: repeating the step S6, and placing the impact block and the pushing block at the same position every time to enable the impact block to impact the side face of the concrete block for multiple times until the concrete block is broken and damaged, and recording the times of impact;
s8: and obtaining the impact strength of the concrete according to the impact times, and finishing the detection.
Compared with the prior art, the invention has the advantages that:
1. the lifting device is provided with structures such as a threaded column, a lifting sleeve, a crank handle and the like, the rotating shaft and the first bevel gear rotate by rotating the crank handle, so that the second bevel gear and the threaded column are driven to rotate, and the lifting sleeve only can slide upwards and downwards under the action of the inner wall of the rectangular box under the rotation of the threaded column, so that the height of the whole lifting plate is adjusted, the operation is simple and convenient, and the experimental effect and the experimental efficiency are improved;
2. when the impact block falls and impacts each time, the coil is controlled to be electrified through the circuit to generate a magnetic field, the iron limiting block slides into the cavity under the action of the magnetic field, the impact block loses the fixed limit of the limiting block to complete free falling, the instability of manual control is avoided, the falling point area of the impact block is stable each time, the stress of a test piece is concentrated, and the detection result is more accurate and reasonable;
3. the invention not only improves the vertical impact device, but also is provided with a side impact device, the impact block is placed in the track slab, the pushing block is backwards slid to compress the second spring, then the pushing block is released, the pushing block is ejected away from the opening of the track slab, the impact block is launched out along the opening direction of the track slab, the side surface of the concrete block is impacted, a plurality of tests are carried out, the positions of the impact block and the pushing block at each time are strictly controlled, and the vertical impact and the side impact make the detection result have comprehensiveness.
Drawings
FIG. 1 is a schematic structural diagram of a device for detecting impact resistance of concrete according to the present invention;
FIG. 2 is a sectional view of the structure taken along line A-A in FIG. 1;
FIG. 3 is an enlarged view of a portion of the structure shown at B in FIG. 1;
FIG. 4 is a top view of a partial structure of a middle base 1 of the device for detecting impact resistance of concrete according to the present invention;
in the figure: the concrete block lifting device comprises a base 1, supporting legs 2, an adjusting box 3, a rectangular box 4, a threaded column 5, a first bevel gear 6, a rotating shaft 7, a second bevel gear 8, a handle 9, a lifting sleeve 10, a lifting groove 11, a lifting plate 12, a communication hole 13, an impact block 14, a cavity 15, a limiting block 16, a first spring 17, a coil 18, a limiting groove 19, a fixing folded plate 20, a track plate 21, a long plate 211, a short plate 212, a sliding groove 22, a pushing block 23, a protruding block 24, a second spring 25, a non-slip mat 26 and a concrete block 27.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
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 the following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.
Examples
Referring to fig. 1-4, a concrete impact resistance detection device comprises a base 1 and concrete blocks 27, wherein a plurality of supporting feet 2 are welded on the lower end face of the base 1, a regulating box 3 is welded on a section of the upper end face of the base 1, a vertical rectangular box 4 is welded on the top of the regulating box 3, vertical impact devices with adjustable height are arranged on the regulating box 3 and the rectangular box 4, a side impact device is arranged at one end of the base 1 far away from the regulating box 3, four vertical fixing folded plates 20 are welded on the upper end face of the base 1 at the middle position, the number of the supporting feet 2 is four, a layer of anti-skid pad 26 is glued at the bottom of each supporting foot 2, each fixing folded plate 20 is formed by welding two plates at 90 degrees, the four fixing folded plates 20 all abut against the four corners of the concrete blocks 27, the four fixing folded plates 20 are simple in structure and facilitate the fixing and installation of the, and cleaning is easier after the concrete block 27 is broken and crushed.
The height-adjustable vertical impact device comprises a threaded column 5, the two ends of the threaded column 5 are respectively connected with the top and the bottom box walls of a rectangular box 4 through bearings in a rotating manner, the lower end of the threaded column 5 penetrates through the bottom box wall of the rectangular box 4 and the top box wall of an adjusting box 33, a first bevel gear 6 is coaxially welded at one end of the threaded column 5, which is positioned in the adjusting box 3, a rotating shaft 7 penetrates through the box wall of one side, which is far away from a fixed folded plate 20, of the adjusting box 3, the rotating shaft 7 is connected with the side wall of the adjusting box 3 through bearings in a rotating manner, a second bevel gear 8 is coaxially welded at one end of the rotating shaft 7, which is positioned in the adjusting box 3, the first bevel gear 6 is meshed with the second bevel gear 8, a crank handle 9 is welded at one end, which is positioned outside the adjusting box 3, a lifting sleeve 10 is rotatably connected on the threaded column 5 in the rectangular, a lifting groove 11 is formed in one side, close to the fixed folded plate 20, of the rectangular box 4, the lifting groove 11 is communicated with the inside of the rectangular box 4, a lifting plate 12 is connected in the lifting groove 11 in a sliding mode, and the lifting plate 12 is located at one end, located in the lifting groove 11, of the lifting groove and fixedly connected with the lifting sleeve 10.
One end of the lifting plate 12, which is far away from the lifting sleeve 10, is provided with a communicating hole 13, the communicating hole 13 is internally and slidably connected with an impact block 14, the lifting plate 12 is positioned at the communicating hole 13 and is provided with a cavity 15, one end of the cavity 15 is communicated with the communicating hole 13, the cavity 15 is internally and slidably connected with a limiting block 16, a first spring 17 is arranged in the cavity 15 and is connected with the limiting block 16, a coil 18 is arranged in the cavity wall of the cavity 15, a limiting groove 19 is formed in the side wall of the impact block 14, one end, which is far away from the first spring 17, of the limiting block 16 is abutted against the groove wall of the limiting groove 19, the lower end of the impact block 14 is arranged into a conical structure, the limiting.
Side impact device includes track board 21, track board 21 comprises two long slabs 211 and a short slab 212, the both ends of short slab 212 respectively with two long slab 211 vertical weld, two long slabs 211 and a short slab 212 all weld on base 1 and be U type structure, sliding connection has one between two long slabs 211 to promote piece 23, the lower terminal surface that promotes piece 23 and base 1's up end sliding connection, it has a second spring 25 to promote piece 23 to be close to short slab 212 one side welding, the one end and the short slab 212 welding that promote piece 23 are kept away from to second spring 25, a spout 22 has all been seted up on two long slabs 211, the both sides welding that promotes piece 23 all has protruding piece 24, the protruding piece 24 that promotes piece 23 both sides respectively with the spout 22 sliding connection of both sides long slab 211.
The using method comprises the following steps:
s1: adjusting the base 1 to horizontally place the base 1, then placing the concrete blocks 27 in the four fixing folded plates 20, and enabling four corners of the concrete blocks 27 to be respectively abutted against the four fixing folded plates 20 to fix the positions;
s2: according to the height required by detection, the crank handle 9 is rotated to drive the threaded column 5 to rotate, so that the lifting sleeve 10 rises or slides downwards to adjust the height of the lifting plate 12;
s3: the coil 18 is electrified to generate a magnetic field, the iron limiting block 16 slides into the cavity 15 under the action of the magnetic field, one end of the limiting block 16 in the limiting groove 19 of the impact block 14 slides out of the limiting groove 19, and the impact block 14 is not limited to freely fall to impact the concrete block 27;
s4: after the coil 18 is powered off, the impact block 14 is inserted into the communication hole 13 again, and the limiting block 16 fixes the impact block 14 under the action of the first spring 17;
s5: repeating the steps S3 and S4 to enable the impact block 14 to impact the concrete block 27 for multiple times until the concrete block 27 is broken and damaged, and recording the times of impact;
s6: replacing a new concrete block 27, placing the impact block 14 into the track plate 21, sliding the pushing block 23 backwards, compressing the second spring 25, then releasing the pushing block 23, ejecting the impact block 14 along the opening direction of the track plate 21 by the pushing block 23, and impacting the side surface of the concrete block 27;
s7: repeating the step S6, and placing the impact block 14 and the pushing block 23 at the same position each time, so that the impact block 14 impacts the side surface of the concrete block 27 for multiple times until the concrete block 27 is broken and damaged, and recording the times of impact;
s8: and obtaining the impact strength of the concrete according to the impact times, and finishing the detection.
In the invention, before detection, the height of the lifting plate 12 is firstly adjusted, the rotating shaft 7 and the first bevel gear 8 are rotated by rotating the crank handle 9, so that the second bevel gear 6 and the threaded column 5 are driven to rotate, and the lifting sleeve 10 can only slide up and down under the action of the inner wall of the rectangular box 4 under the rotation of the threaded column 5, so that the height of the whole lifting plate 12 is adjusted, and the improvement of the experimental effect and the experimental efficiency is facilitated.
When the impact block 14 falls and impacts each time, the coil 18 is controlled to be electrified through the circuit, the impact block 14 loses the fixation limitation of the limiting block 16 to finish free falling, the instability of manual control is eliminated, the falling point area is stable, the stress of a test piece is concentrated, the detection result is more accurate and reasonable, the impact block 14 is inserted back into the communication hole 13 from the upper side of the communication hole 13 each time, in the inserting process, the limiting block 16 is pressed back into the cavity 15 through the conical structure at the lower end of the impact block 14, the impact block 14 continues to slide downwards in the communication hole 13 along with the impact block 14, and after the limiting groove 19 reaches the position of the limiting block 16, the first spring 17 pushes one end of the limiting block 16 into the limiting groove 19, so that the fixation of the impact block 14 is.
Although the terms of the base 1, the supporting legs 2, the adjusting box 3, the rectangular box 4, the threaded post 5, the first bevel gear 6, the rotating shaft 7, the second bevel gear 8, the crank 9, the lifting sleeve 10, the lifting groove 11, the lifting plate 12, the communication hole 13, the impact block 14, the cavity 15, the limiting block 16, the first spring 17, the coil 18, the limiting groove 19, the fixing folded plate 20, the track plate 21, the long plate 211, the short plate 212, the sliding groove 22, the pushing block 23, the protruding block 24, the second spring 25, the anti-skid pad 26, the concrete block 27, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. The utility model provides a detection apparatus for concrete shock resistance, includes base (1) and concrete piece (27), its characterized in that, the lower terminal surface welding of base (1) has a plurality of supporting legss (2), base (1) up end one section position welding has one regulating box (3), the top welding of regulating box (3) has one vertical rectangle case (4), be equipped with but height-adjusting vertical impact device on regulating box (3) and rectangle case (4), the one end that regulating box (3) were kept away from in base (1) is equipped with side impact device, base (1) up end is located the welding of intermediate position department and has four vertical fixed folded plates (20).
2. The concrete impact resistance detection device according to claim 1, wherein the height-adjustable vertical impact device comprises a threaded column (5), the two ends of the threaded column (5) are respectively connected with the top and bottom walls of the rectangular box (4) through bearings in a rotating manner, the lower end of the threaded column (5) penetrates through the bottom wall of the rectangular box (4) and the top wall of the adjusting box (33), a first bevel gear (6) is coaxially welded at one end of the threaded column (5) located in the adjusting box (3), a rotating shaft (7) penetrates through the side wall of the adjusting box (3) far away from the fixed folded plate (20), the rotating shaft (7) is connected with the side wall of the adjusting box (3) through bearings in a rotating manner, a second bevel gear (8) is coaxially welded at one end of the rotating shaft (7) located in the adjusting box (3), first bevel gear (6) and second bevel gear (8) intermeshing, pivot (7) are located the outer one end welding of regulating box (3) and have a crank (9), be connected with one through screw thread rotation on screw thread post (5) in rectangle case (4) and go up and down cover (10), the side all around of going up and down cover (10) and the inner wall sliding connection all around of rectangle case (4), rectangle case (4) are close to one side of fixed folded plate (20) and have been seted up a lift groove (11), lift groove (11) and rectangle case (4) inside intercommunication, sliding connection has a lifter plate (12) in lift groove (11), lifter plate (12) are located lift groove (11) one end and lift cover (10) fixed connection.
3. The concrete impact resistance detection device according to claim 2, wherein a communication hole (13) is formed in one end of the lifting plate (12) far away from the lifting sleeve (10), an impact block (14) is connected in the communication hole (13) in a sliding manner, a cavity (15) is formed in the position, located at the communication hole (13), of the lifting plate (12), one end of the cavity (15) is communicated with the communication hole (13), a limiting block (16) is connected in the cavity (15) in a sliding manner, a first spring (17) is arranged in the cavity (15) and connected with the limiting block (16), a coil (18) is wound in the cavity wall of the cavity (15), a limiting groove (19) is formed in the side wall of the impact block (14), and one end, far away from the first spring (17), of the limiting block (16) abuts against the groove wall of the limiting groove (19), the lower end of the impact block (14) is provided with a conical structure.
4. The concrete impact resistance detection device according to claim 1, wherein the side impact device comprises a track plate (21), the track plate (21) is composed of two long plates (211) and a short plate (212), two ends of the short plate (212) are respectively welded to the two long plates (211) vertically, and the two long plates (211) and the short plate (212) are both welded to the base (1) and are in a U-shaped structure.
5. The concrete impact resistance detection device according to claim 4, wherein a push block (23) is slidably connected between the two long plates (211), the lower end face of the push block (23) is slidably connected with the upper end face of the base (1), one side, close to the short plate (212), of the push block (23) is welded with a second spring (25), one end, far away from the push block (23), of the second spring is welded with the short plate (212), one sliding groove (22) is formed in each of the two long plates (211), protruding blocks (24) are welded on the two sides of the push block (23), and the protruding blocks (24) on the two sides of the push block (23) are respectively slidably connected with the sliding grooves (22) of the long plates (211) on the two sides.
6. A concrete impact resistance detection device according to claim 3, wherein the limiting block (16) is made of ferrous material, and the coil (18) is externally connected with a circuit switch.
7. The concrete impact resistance detection device according to claim 1, wherein the number of the supporting feet (2) is four, a layer of non-slip mat (26) is glued to the bottom of each supporting foot (2), each fixing folded plate (20) is formed by welding two plates at 90 degrees, and four fixing folded plates (20) are abutted to four corners of the concrete block (27).
8. The use method of the concrete impact resistance detection device is characterized by comprising the following steps:
s1: the adjusting base (1) is in a horizontal state, and the concrete blocks (27) are fixed in the four fixing folded plates (20);
s2: according to the height required by detection, the crank handle (9) is rotated to enable the lifting sleeve (10) to ascend or descend, and the height of the lifting plate (12) is adjusted;
s3: energizing the coil (18) to generate a magnetic field, so that the impact block (14) freely falls to impact the concrete block (27);
s4: the coil (18) is powered off, the impact block (14) is inserted into the communication hole (13) again, and the limiting block (16) is acted by the first spring (17) to fix the impact block (14) again;
s5: repeating the steps S3 and S4 until the concrete block (27) is broken and damaged, and recording the number of times of impact;
s6: replacing a new concrete block (27), placing the impact block (14) into the track plate (21), sliding the pushing block (23) backwards, so that the pushing block (23) is subjected to elasticity to launch the impact block (14) along the opening direction of the track plate (21) and impact the side surface of the concrete block (27);
s7: repeating the step S6, ensuring that the impact block (14) and the pushing block (23) are arranged at the same position every time, enabling the impact block (14) to impact the side surface of the concrete block (27) for multiple times until the concrete block (27) is broken and damaged, and recording the times of impact;
s8: and obtaining the impact strength of the concrete according to the impact times, and finishing the detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010321600.3A CN111307630A (en) | 2020-04-22 | 2020-04-22 | Device and method for detecting impact resistance of concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010321600.3A CN111307630A (en) | 2020-04-22 | 2020-04-22 | Device and method for detecting impact resistance of concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111307630A true CN111307630A (en) | 2020-06-19 |
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ID=71146318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010321600.3A Withdrawn CN111307630A (en) | 2020-04-22 | 2020-04-22 | Device and method for detecting impact resistance of concrete |
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| Country | Link |
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| CN (1) | CN111307630A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075031A (en) * | 2021-02-08 | 2021-07-06 | 浙江大合检测有限公司 | Concrete compressive strength field test equipment |
-
2020
- 2020-04-22 CN CN202010321600.3A patent/CN111307630A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113075031A (en) * | 2021-02-08 | 2021-07-06 | 浙江大合检测有限公司 | Concrete compressive strength field test equipment |
| CN113075031B (en) * | 2021-02-08 | 2022-04-26 | 浙江大合检测有限公司 | Concrete compressive strength field test equipment |
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Application publication date: 20200619 |