CN109655330A - A kind of concrete test piece compressive strength test device and its application method - Google Patents
A kind of concrete test piece compressive strength test device and its application method Download PDFInfo
- Publication number
- CN109655330A CN109655330A CN201910064011.9A CN201910064011A CN109655330A CN 109655330 A CN109655330 A CN 109655330A CN 201910064011 A CN201910064011 A CN 201910064011A CN 109655330 A CN109655330 A CN 109655330A
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- Prior art keywords
- balancer
- cavity
- concrete
- compressive strength
- concrete sample
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- 238000012360 testing method Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000004576 sand Substances 0.000 claims abstract description 44
- 238000012669 compression test Methods 0.000 claims abstract description 6
- 239000003292 glue Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 230000001788 irregular Effects 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a kind of concrete test piece compressive strength test device and its application methods, the device includes the lower balancer and upper balancer between top board and lower platen, the lower balancer is placed on the lower platen of press machine, concrete sample is placed on the lower balancer, the upper balancer is placed on above concrete sample, the lower balancer be equipped with upper end opening and with the matched cavity first of concrete sample, the upper balancer be equipped with lower ending opening and with the matched cavity second of concrete sample, fine sand is filled in the cavity first and in the cavity second, it is stamped below the cavity second and covers sand film, the device application method is simple, it is easy to operate, the device can effectively solve concrete anti-compression test specimen, and resistance to compression face is irregular up and down, it is not parallel, the problems such as out-of-flatness, improve test precision.
Description
Technical field
The present invention relates to the technical field of compression strength of concrete test parts test, in particular to a kind of concrete sample resistance to compressions
Strength test device and its application method.
Background technique
Present concrete coring test specimen is mostly upper and lower surfaces out-of-flatness, and still has high-volume test specimen after cutting floating processing
Resistance to compression face it is not parallel phenomena such as, be easy to cause resistance to compression discontinuity, phenomena such as stress is concentrated, cause concrete sample resistance to compression
Low strength, data inaccuracy.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of concrete test piece compressive strength test device and its uses
Method.
The technical scheme is that a kind of concrete test piece compressive strength test device, including with existing compression test
The top board and lower platen of equipment connection, further include the lower balancer and upper balancer between top board and lower platen, institute
It states lower balancer to be placed on lower platen, concrete sample is placed on the lower balancer, the upper balancer is placed on coagulation
Above native test specimen, the lower balancer be equipped with upper end opening and with the matched cavity first of concrete sample, the upper balancer sets
Have lower ending opening and with the matched cavity second of concrete sample, fine sand is filled in the cavity first and in the cavity second, it is described
It is stamped below cavity second and covers sand film.
Preferably, the edge for covering sand film flips up and is bundled into the side of upper balancer by binding strap.
Preferably, the two sides of the upper balancer and the lower balancer are respectively connected with slide plate, the top board and described
The two sides of lower platen are provided with guide upright post, and the slide plate is equipped with the through-hole cooperated with guide upright post.
Preferably, the partial size of the fine sand is 2-3mm.
Preferably, the upper cavity is a height of 15mm, the circular cavity that internal diameter is 104mm, and the lower chamber is a height of
40mm, the circular cavity that internal diameter is 104mm.
Preferably, for the sand film that covers for elastic glue film, the binding strap is rubber neck.
A kind of application method of above-mentioned concrete test piece compressive strength test device, comprising the following steps:
Lower balancer is placed on lower platen by step 1, and the fine sand of 2-3mm partial size is packed into cavity first；
The least smooth end face of concrete sample is placed on fine sand by step 2, compress concrete sample make test specimen middle line with it is upper
Lower platen is vertical；
Step 3 is packed into fine sand in the cavity second of upper balancer, then seals up on surface and cover sand film, and the edge for covering sand film is used
Strapping is bundled into the side of balancer；
The cavity second of upper balancer is tipped upside down on concrete sample upper surface by step 4, and upper balancer and test specimen are compressed；
Step 5 compresses top board and fits closely with upper balancer, take guide upright post away, carries out compressive strength test.
Preferably, in step 1, guide upright post is passed through to the through-hole of lower two sideskid of balancer.
Preferably, in step 4, guide upright post is made to pass through the through-hole of upper two sideskid of balancer.
The beneficial effects of the present invention are:
The present invention can be used for concrete anti-compression test, and the device is simple and efficient to handle, can effectively solve on concrete anti-compression test specimen
The problems such as lower resistance to compression face is irregular, not parallel, out-of-flatness, improves test precision.
The present invention fills fine sand in cavity first and cavity second, and fine sand is gradually extruded when carrying out compressive strength test, energy
Enough make the pit of fine sand fill concrete test specimen end face, and fine sand is compacted, keeps the end face of concrete sample smooth, make test specimen
Uniform force, eliminate stress concentration phenomenon, so as to obtain accurate test data.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention；
Fig. 2 is schematic perspective view of the invention；
Fig. 3 is the schematic perspective view after present invention filling fine sand；
Fig. 4 is the present invention looks up structural representation of upper balancer；
Fig. 5 is that upper balancer fills the present invention looks up structural representation after fine sand；
In figure: 1, top board；2, lower platen；3, lower balancer；31, cavity first；4, upper balancer；41, cavity second；42, sand is covered
Film；43, binding strap；5, slide plate；6, guide upright post；7, concrete sample；8, fine sand.
Specific embodiment
A specific embodiment of the invention is referring to Fig. 1-5:
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clearly and completely
Description is herein no longer described existing testing equipment wherein existing testing equipment is well-known technique.
The technical solution of the present invention is as follows:
Embodiment one, such as Fig. 1,2,4, a kind of concrete test piece compressive strength test device, including with existing compression test equipment
The top board 1 and lower platen 2 of connection, further include lower balancer 3 and upper balancer 4 between top board 1 and lower platen 2,
The lower balancer 3 is placed on lower platen 2, and concrete sample 7 is placed on the lower balancer 3, and the upper balancer 4 is placed
Above concrete sample 7, the lower balancer 3 be equipped with upper end opening and with the matched cavity first 31 of concrete sample 7, it is described
Upper balancer 4 be equipped with lower ending opening and with the matched cavity second 41 of concrete sample 7, such as Fig. 3 and 5, in the cavity first 31 and
Fine sand 8 is filled in the cavity second 41, the partial size of the fine sand 8 is 2-3mm, and the lower section of the cavity second 41, which is stamped, covers sand film
42, the edge for covering sand film 42 flips up and is bundled into the side of balancer 4 by binding strap 43.
In example 1, concrete sample 7 is cylinder, and the upper cavity is a height of 15mm, the circle that internal diameter is 104mm
Shape cavity, the lower chamber are a height of 40mm, the circular cavity that internal diameter is 104mm, and the sand film 42 that covers is described for elastic glue film
Binding strap 43 is rubber neck；Concrete sample 7 is also possible to cube, and upper cavity and lower chamber are also provided with into cube.
The present invention fills fine sand 8 in cavity first 31 and cavity second 41, and fine sand 8 is gradually squeezed when carrying out compressive strength test
Pressure, can make the pit of 8 fill concrete test specimen of fine sand, 7 end face, and fine sand 8 is compacted, and keep the end face of concrete sample 7 flat
It is whole, make the uniform force of test specimen, eliminate stress concentration phenomenon, so as to obtain accurate test data.
Embodiment two, is basically the same as the first embodiment, the difference is that, such as Fig. 1-3, the upper balancer 4 and described
The two sides of lower balancer 3 are respectively connected with slide plate 5, and the two sides of the top board 1 and the lower platen 2 are provided with guide upright post 6, institute
It states slide plate 5 and is equipped with the through-hole cooperated with guide upright post 6.
In example 2, setting guide upright post 6 can guarantee that upper cavity and lower chamber are overlapped, and avoid misplacing, cause to try
Test data inaccuracy.
Specific works method of the invention are as follows: lower balancer 3 is placed on lower platen 2, guide upright post 6 is passed through into lower balance
The through-hole of 3 liang of sideskids 5 of device is packed into the fine sand 8 of 2-3mm partial size, by the end that concrete sample 7 is least smooth in cavity first 31
Face is placed on fine sand 8, and compressing concrete sample 7 keeps test specimen middle line vertical with upper lower platen 2, in the cavity second 41 of upper balancer 4
Middle loading fine sand 8, then seals up on surface and covers sand film 42, and the edge for covering sand film 42 is bundled into upper balancer 4 with strapping
The cavity second 41 of upper balancer 4 is tipped upside down on 7 upper surface of concrete sample by side, and guide upright post 6 is made to pass through 4 liang of upper balancer
The through-hole of sideskid 5 compresses upper balancer 4 and test specimen, guarantees that guide upright post 6 can pass freely through the through-hole of slide plate 5, in compression
Pressing plate 1 is fitted closely with upper balancer 4, takes guide upright post 6 away, carries out compressive strength test.
In order to detect the test result reliability of experimental rig of the present invention, in a certain concrete road surface C30 site operation mistake
The standard specimen of one group of cured under same condition (6) cube, road surface of having constructed at the scene after 7 days take three groups and standard specimen in journey
The identical core sample of size, every group of core sample are 6, and three groups of core samples are put together with standard specimen to the feeding room progress standard of mark and are supported
Shield, three groups of core samples are respectively first group of core sample, second group of core sample, third group core sample, and second group of core sample carries out 35 mortar of surface C and smear
Flat processing, three groups of core samples and standard specimen are marked and are supported to 28d age, and compressive strength test, standard specimen, first group are then carried out
Core sample and second group of core sample are all made of existing testing equipment and are tested, third group core sample using experimental rig of the invention into
Row test, test result are as shown in the table:
As known from Table 1, the test result difference using the test result of experimental rig of the present invention and standard specimen is smaller, reasonable
Measured value variation range in, variance and number of discreteness are less than normal, show that the device to test result is accurate, stablizes, can be well
It solves the problems, such as of the existing technology.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
Claims (9)
1. a kind of concrete test piece compressive strength test device, including the top board being connect with existing compression test equipment and pushing
Plate, it is characterised in that: further include the lower balancer and upper balancer between top board and lower platen, the lower balancer is put
It sets on lower platen, concrete sample is placed on the lower balancer, the upper balancer is placed on above concrete sample, institute
State lower balancer equipped with upper end opening and with the matched cavity first of concrete sample, the upper balancer be equipped with lower ending opening and with
The matched cavity second of concrete sample, the cavity first is interior and the cavity second is interior fills fine sand, the lower section lid of the cavity second
Have and covers sand film.
2. concrete test piece compressive strength test device according to claim 1, it is characterised in that: the side for covering sand film
Edge flips up and is bundled into the side of upper balancer by binding strap.
3. concrete test piece compressive strength test device according to claim 2, it is characterised in that: the upper balancer and
The two sides of the lower balancer are respectively connected with slide plate, and the two sides of the top board and the lower platen are provided with guide upright post, institute
It states slide plate and is equipped with the through-hole cooperated with guide upright post.
4. concrete test piece compressive strength test device according to claim 3, it is characterised in that: the partial size of the fine sand
For 2-3mm.
5. concrete test piece compressive strength test device according to claim 4, it is characterised in that: the upper cavity is high
The circular cavity for being 104mm for 15mm, internal diameter, the lower chamber are a height of 40mm, the circular cavity that internal diameter is 104mm.
6. concrete test piece compressive strength test device according to claim 5, it is characterised in that: the sand film that covers is bullet
Property glue film, the binding strap be rubber neck.
7. a kind of application method of concrete test piece compressive strength test device as claimed in claim 6, it is characterised in that: packet
Include following steps:
Lower balancer is placed on lower platen by step 1, and the fine sand of 2-3mm partial size is packed into cavity first；
The least smooth end face of concrete sample is placed on fine sand by step 2, compress concrete sample make test specimen middle line with it is upper
Lower platen is vertical；
Step 3 is packed into fine sand in the cavity second of upper balancer, then seals up on surface and cover sand film, and the edge for covering sand film is used
Strapping is bundled into the side of balancer；
The cavity second of upper balancer is tipped upside down on concrete sample upper surface by step 4, and upper balancer and test specimen are compressed；
Step 5 compresses top board and fits closely with upper balancer, take guide upright post away, carries out compressive strength test.
8. application method according to claim 7, it is characterised in that: in step 1, guide upright post is passed through lower balance
The through-hole of two sideskid of device.
9. application method according to claim 8, it is characterised in that: in step 4, guide upright post is made to pass through upper balance
The through-hole of two sideskid of device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064011.9A CN109655330A (en) | 2019-01-23 | 2019-01-23 | A kind of concrete test piece compressive strength test device and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910064011.9A CN109655330A (en) | 2019-01-23 | 2019-01-23 | A kind of concrete test piece compressive strength test device and its application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109655330A true CN109655330A (en) | 2019-04-19 |
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ID=66120395
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910064011.9A Pending CN109655330A (en) | 2019-01-23 | 2019-01-23 | A kind of concrete test piece compressive strength test device and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220466A (en) * | 2019-11-28 | 2020-06-02 | 河南牛帕力学工程研究院 | Road compressive strength detection device and detection method |
| CN113776962A (en) * | 2021-09-07 | 2021-12-10 | 广东工业大学 | Concrete impact test auxiliary fixtures and concrete impact test device |
| CN114527007A (en) * | 2022-04-24 | 2022-05-24 | 徐州三和鑫诚新型建材有限公司 | High-precision strength detection device for concrete formula test |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620049A (en) * | 2009-04-30 | 2010-01-06 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Method for compression test of concrete core sample |
| CN209820912U (en) * | 2019-01-23 | 2019-12-20 | 中交一公局厦门检测技术有限公司 | Concrete sample compressive strength test device |
-
2019
- 2019-01-23 CN CN201910064011.9A patent/CN109655330A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101620049A (en) * | 2009-04-30 | 2010-01-06 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Method for compression test of concrete core sample |
| CN209820912U (en) * | 2019-01-23 | 2019-12-20 | 中交一公局厦门检测技术有限公司 | Concrete sample compressive strength test device |
Non-Patent Citations (1)
| Title |
|---|
| 邵珊;洪波;时光明;: "砂盒法检测混凝土芯样抗压强度的试验研究", 建材世界, no. 02, pages 1 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111220466A (en) * | 2019-11-28 | 2020-06-02 | 河南牛帕力学工程研究院 | Road compressive strength detection device and detection method |
| CN111220466B (en) * | 2019-11-28 | 2023-08-01 | 河南交院工程技术集团有限公司 | Road compressive strength detection device and detection method |
| CN113776962A (en) * | 2021-09-07 | 2021-12-10 | 广东工业大学 | Concrete impact test auxiliary fixtures and concrete impact test device |
| CN114527007A (en) * | 2022-04-24 | 2022-05-24 | 徐州三和鑫诚新型建材有限公司 | High-precision strength detection device for concrete formula test |
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| CB03 | Change of inventor or designer information |
Inventor after: Xie Shenghua Inventor after: Cai Xuanyan Inventor after: Huang Bin Inventor after: Zhou Shikang Inventor after: Gong Mingzi Inventor after: Rao Xianpeng Inventor before: Xie Shenghua Inventor before: Cai Xuanyan Inventor before: Huang Bin Inventor before: Zhou Shikang Inventor before: Gong Mingzi Inventor before: Rao Xianpeng |
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