CN2379797Y - Resiliometer for measuring strength of strong concrete - Google Patents
Resiliometer for measuring strength of strong concrete Download PDFInfo
- Publication number
- CN2379797Y CN2379797Y CN 98201939 CN98201939U CN2379797Y CN 2379797 Y CN2379797 Y CN 2379797Y CN 98201939 CN98201939 CN 98201939 CN 98201939 U CN98201939 U CN 98201939U CN 2379797 Y CN2379797 Y CN 2379797Y
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- China
- Prior art keywords
- hammer
- elastic
- springing
- resiliometer
- shocking
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- Expired - Fee Related
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a resiliometer for measuring the strength of strong concrete, which comprises a long column-shaped shell, a telescopic springing rod at the front port of the shell, a center guiding rod sliding connected with the springing rod, a shocking hammer sliding on the center guiding rod, a springing tension spring connected with the front end of the shocking hammer, a guide flange and an elastic hook at the rear end of the shocking hammer, a button and a pointer block corresponding to the guide flange. The utility model is characterized in that the working path of the shocking hammer is 100MM; the ball radius of the springing rod at the top end is 35CM; the mass of the impact hammer is 0.5KG. The standard energy of the resiliometer is 4.5 J which is increased by twice compared with the springing energy of the existent resiliometer. The utility model has the advantage of little error, and can detect the concrete of 20.0-100.0 Mpa.
Description
The utility model relates to a kind of instrument of measuring concrete strength, particularly a kind of reisilometer.
Available coagulation soil is surveyed strong reisilometer, be according to (JGJ/T23-92) regulation of standard of China's " rebound method detect concrete crushing strength technical regulation ", power stroke has only 75mm, elastic hammer quality 0.37kg, the spherical radius 25cm on elastic stem top, reisilometer standard state energy is 2.207J, only can detect the concrete of 20.0-50.0MPa intensity.The a large amount of popularization and applications of high-strength concrete (intensity is greater than the concrete of 50.0MP) at present, existing reisilometer has not been suitable for high-strength concrete is carried out intensity detection because standard kinetic energy is little, test error is big.
The purpose of this utility model provides a kind of high-strength concrete and surveys strong reisilometer, will fill up the blank that in the past common reisilometer can not detect high-strength concrete intensity exactly.
The technical scheme that the utility model high-strength concrete is surveyed strong reisilometer is: it comprises long column shape instrument shell, the telescopic elastic stem in instrument shell front port place, the elastic tension spring that is connected with centre pilot, the ram hammer that slides, ram hammer front end that elastic stem is slidingly connected on centre pilot, the guide flange of ram hammer rear end and elastic hook, the button corresponding, the indicator slide block that is positioned at ram hammer one side and can on needle pivot, slides with guide flange, it is characterized in that: the power stroke of ram hammer is 100mm, the spherical radius 35cm on elastic stem top, elastic hammer quality 0.5kg.
High-strength concrete of the present utility model is surveyed strong reisilometer when horizontal attack, by elastic stem attack concrete surface, and measures the distance (being rebound value) that weight is rebounded and, and as the index relevant with intensity, comes establish concrete strength with this with rebound value.Breaking off relations moment, the reisilometer standard energy after the improvement is 4.5J, adds than existing reisilometer attack energy to be twice, and test error is minimum, concrete sensing range can be extended to 20.0-100.0MPa.
Below in conjunction with drawings and Examples the utility model is described in detail:
Fig. 1 is a structural representation of the present utility model.
As shown in the figure, high-strength concrete is surveyed strong reisilometer an oval column instrument shell 17, is threaded with the tail-hood 12 of afterbody, and front end is connected with block 2, and core section is encapsulated in the instrument shell.The reisilometer front end has elastic stem 1 to stretch out outside the instrument shell.Elastic stem 1 is connected with centre pilot 8 by buffer spring 3 and endoporus, and centre pilot 8 other ends are connected with guide flange 9, and guide flange 9 hinged links up with 19, and the other end of hook passes through to link up with bullet Huang 10 and is connected with guide flange 9.Be provided with compression spring 20 between guide flange 9 and the tail-hood.Be with elastic hammer 16 and elastic tension spring 4 on centre pilot 8 and the elastic stem.Elastic tension spring 4 one ends and elastic hammer 16 are affixed, and the other end is affixed with the instrument shell by spring base 15 and snap ring 14.Fixed block 11 is used for fixing needle pivot 6, and sealing felt collar 13 is used to prevent that dust from entering in the machine by the gap between elastic stem 1 and the snap ring 14.In addition, reisilometer does not press the button 18 when not using, and makes button block guide flange 9.
At the beginning of the reisilometer test, elastic tension spring is in free state, and guide flange 9, centre pilot 8 are shifted the major part of elastic stem 1 outside the instrument shell onto under the effect of compression spring 20, link up with 19 simultaneously and hang in the groove of elastic hammer.When reisilometer is pressed to concrete surface, elastic stem 1 is constantly withdrawn in the instrument shell, because link up with 19 and tangled elastic hammer 16 this moment, so along with contracting in the elastic stem 1, elastic tension spring 4 stretches, when reaching certain tensile elongation, linking up with 19 tops contacts with adjustment screw 21, and hook spring is compressed, hook 19 and elastic hammer 16 are thrown off suddenly, elastic hammer 16 passes through elastic stem 1 attack concrete surface along centre pilot 8, then elastic hammer 16 is returned by bounce-back again, and at this moment the indicator slide block 5 on the elastic hammer 16 drive needle pivots 6 slides along needle pivot 6, realized the whole process of reisilometer work, rebound value obtains by the residing position of rule 7 reading pointers.
Claims (1)
1, a kind of high-strength concrete is surveyed strong reisilometer, it comprises long column shape instrument shell, the telescopic elastic stem in instrument shell front port place, the elastic tension spring that is connected with centre pilot, the ram hammer that slides, ram hammer front end that elastic stem is slidingly connected on centre pilot, the guide flange of ram hammer rear end and elastic hook, the button corresponding, the indicator slide block that is positioned at ram hammer one side and can on needle pivot, slides with guide flange, it is characterized in that: the power stroke of ram hammer is 100mm, the spherical radius 35cm on elastic stem top, elastic hammer quality 0.5kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201939 CN2379797Y (en) | 1998-03-12 | 1998-03-12 | Resiliometer for measuring strength of strong concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98201939 CN2379797Y (en) | 1998-03-12 | 1998-03-12 | Resiliometer for measuring strength of strong concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2379797Y true CN2379797Y (en) | 2000-05-24 |
Family
ID=33959092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98201939 Expired - Fee Related CN2379797Y (en) | 1998-03-12 | 1998-03-12 | Resiliometer for measuring strength of strong concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2379797Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509951A (en) * | 2016-01-13 | 2016-04-20 | 中南大学 | Compression type remolded soil pore pressure testing device |
| CN112881156A (en) * | 2021-03-04 | 2021-06-01 | 南京工业大学 | Nondestructive detector for strength of lightweight aggregate concrete |
| CN113654931A (en) * | 2021-09-06 | 2021-11-16 | 中国化学工程第三建设有限公司 | Pneumatic type mortar strength quality detection resiliometer device |
| CN116223270A (en) * | 2023-05-09 | 2023-06-06 | 广东广泽实业有限公司 | Concrete product performance test equipment and method |
-
1998
- 1998-03-12 CN CN 98201939 patent/CN2379797Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105509951A (en) * | 2016-01-13 | 2016-04-20 | 中南大学 | Compression type remolded soil pore pressure testing device |
| CN105509951B (en) * | 2016-01-13 | 2019-01-15 | 中南大学 | A kind of compression manipulated soil hole compression testing device |
| CN112881156A (en) * | 2021-03-04 | 2021-06-01 | 南京工业大学 | Nondestructive detector for strength of lightweight aggregate concrete |
| CN112881156B (en) * | 2021-03-04 | 2022-04-05 | 同济大学建筑设计研究院(集团)有限公司 | Nondestructive detector for strength of lightweight aggregate concrete |
| CN113654931A (en) * | 2021-09-06 | 2021-11-16 | 中国化学工程第三建设有限公司 | Pneumatic type mortar strength quality detection resiliometer device |
| CN116223270A (en) * | 2023-05-09 | 2023-06-06 | 广东广泽实业有限公司 | Concrete product performance test equipment and method |
| CN116223270B (en) * | 2023-05-09 | 2023-12-19 | 广东汇海材料有限公司 | Concrete product performance test equipment and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |