CN205374449U - Air shrinkage of concrete warp measuring device - Google Patents
Air shrinkage of concrete warp measuring device Download PDFInfo
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- CN205374449U CN205374449U CN201521135620.2U CN201521135620U CN205374449U CN 205374449 U CN205374449 U CN 205374449U CN 201521135620 U CN201521135620 U CN 201521135620U CN 205374449 U CN205374449 U CN 205374449U
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- embedded iron
- iron parts
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Abstract
The utility model relates to an air shrinkage of concrete warp measuring device. The utility model discloses a provide a simple structure, easily operation, measure the measuring device that accurate concrete shrinkage warp. The utility model discloses a concrete sample, base, upright mould, side form, support, magnetism gauge stand, displacement sensor. The utility model discloses in, die cavities are constituteed to base, two upright moulds, two side forms for concreting test piece, base, two found moulds, two side forms are handled through glaze technology with the one side of concrete sample contact, form glaze technology and handle the layer, have reduced concrete sample and base, two frictions of standing between mould, two side forms, have increased the accuracy of experiment. The utility model discloses a subunit of portion, for example channel -section steel, embedded iron spare, nut, tighten the bolts, support, magnetism gauge stand, displacement sensor etc. All can be for the standard components of low price, like this the utility model discloses a low price.
Description
Technical field
This utility model relates to a kind of concrete dry-shrinkage deformed measurement apparatus.
Background technology
Concrete material, because of its convenience of drawing materials, cheap and good durability, fire resistance, globality and normability, is widely used in architectural engineering.Continuous appearance along with new material, new technique, high-strength concrete and High-performance green concrete are also accepted by vast experts and scholars, but why there is no large-scale popularization and application a few days ago, one of reason is exactly that concrete craze and transfiguration problem is not well controlled and solves, and even the problem of Cracking of some high performance concrete is instead more serious.Therefore, how to reduce concrete craze and transfiguration and how to improve the precision that craze and transfiguration is measured, just becoming the key issue that can solve popularization and application as early as possible.
Cause that the factor of concrete generation craze and transfiguration is a lot, dry-shrinkage deformed (self-constriction), the temperature deformation of concrete itself, differential settlement deformation etc..With regard to measure dry-shrinkage deformed for, there is no unified standard in current specification can utilize, and the measurement concrete operations that each experts and scholars adopt also are not quite similar, and the measurement apparatus of employing is also not quite similar.
Measuring method and measurement apparatus have multiple, but existing technology is disadvantageous in that: (1) part measurement devices is excessively complicated, and limitation is too strong, operation inconvenience；(2) partial devices can only test intensity reach certain condition shape test block；(3) part measurement devices is comparatively rough, and precision is inadequate, has a strong impact on the credibility of measurement result.Therefore, it is necessary to design the dry-shrinkage deformed measurement apparatus of a kind of light, highly versatile.
Utility model content
For the deficiency that the dry-shrinkage deformed measurement apparatus of existing concrete exists, this utility model seek to provide a kind of simple structure, easily operated, measure the measurement apparatus of shrinkage deformation accurately.
This utility model includes concrete sample, base, formwork erection, side form, support, Magnetic gauge stand, displacement transducer.
Embedded iron parts is made by spiral, and embedded iron parts has screw thread for cylindrical and cylinder, and one end of embedded iron parts and embedded iron parts steel plate connect fixing, and embedded iron parts stretches into the inside of concrete sample, and embedded iron parts steel plate has one side to expose from concrete sample.
Two channel-section steels are arranged on chassis, and the two ends of two channel-section steels are respectively arranged with a bolt hole, tight a bolt through two bolts hole and are fastened by nut.
Formwork erection be provided centrally with running through the concrete deformation instrument connection of formwork erection.
In this utility model, concrete sample both sides are respectively provided with embedded iron parts and embedded iron parts steel plate.Owing to embedded iron parts and embedded iron parts steel plate are iron and steel material quality, its linear expansion coefficient is close with concrete, increases the degree of accuracy of test.Owing to the cylinder of embedded iron parts has screw thread, so can increase the gmatjpdumamics between embedded iron parts and concrete sample, increase the degree of accuracy of test.
In this utility model, thermocouple and thermometer are set, it is possible to control the temperature within concrete sample in the scope specified, it is ensured that experimental condition is accurate in concrete sample.
In this utility model, two side forms are kept upright by two channel steel supports respectively.The long and short edge direction of side form is provided with an air level, for confirming the levelness of this device, it is ensured that experimental condition is accurate.
In this utility model, side form could be arranged to the structure of hollow, it is possible to reduces its weight, improves portability.
In this utility model, base, two formwork erections, two side form composition die cavities, for casting concrete test specimen.The one side that base, two formwork erections, two side forms contact with concrete sample, through glaze paint PROCESS FOR TREATMENT, forms glaze paint PROCESS FOR TREATMENT layer, reduces concrete sample and base, friction between two pieces of formwork erections, two side forms, increases the degree of accuracy of test.
In this utility model, a channel-section steel among two channel-section steels, its two ends are provided with support；Support connects displacement transducer, and displacement transducer connects Magnetic gauge stand, and Magnetic gauge stand contacts with embedded iron parts steel plate through concrete deformation instrument connection and is fixed with embedded iron parts steel plate.After concrete sample drying shrinkage, embedded iron parts and embedded iron parts steel plate are also subjected to displacement accordingly, and embedded iron parts steel plate absorption Magnetic gauge stand makes the numerical value that displacement transducer shows change, thus measuring the dry-shrinkage deformed amount of concrete sample.
Section components of the present utility model, such as channel-section steel, embedded iron parts, nut, tight a bolt, support, Magnetic gauge stand, displacement transducer etc. can be all cheap standard component, so this device is cheap.
In this utility model, it is two blocks of channel-section steels, chassis that base can be dismantled easily, some tight a bolt and some nuts；After base is disassembled, two pieces of formwork erections and two side forms are not owing to having supporter, and it is also disassembled naturally.After completing the assembling of base, insert two pieces of formwork erections and two side forms can complete to install.Be can be seen that dismounting of the present utility model is more convenient by above-mentioned.
In this utility model, the two ends of two channel-section steels can arrange more than three groups bolt hole (at least need two tight a bolt 24 respectively support two formwork erections 3, accordingly, required bolt hole 23 is minimum is two groups), tight a bolt through the bolt hole of difference group and fastened by nut, formwork erection is supported on diverse location, coordinates various sizes of side form, it is possible to make the concrete sample of different size A.The distance between two groups of channel-section steels can be regulated by the degree of tightening of adjusting nut, side form is supported on different positions, coordinates various sizes of formwork erection, it is possible to make the concrete sample of different size B.Versatility of the present utility model and availability are higher from the above.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model
The schematic diagram (support 71, Magnetic gauge stand 72, displacement transducer 73 are not drawn in fig. 2) of Fig. 2 this utility model another one angle
Fig. 3 is the schematic diagram of side form of the present utility model
The schematic diagram (support 71, Magnetic gauge stand 72, displacement transducer 73 are not drawn in the diagram) of Fig. 4 this utility model another one angle
1 concrete sample
2 bases
21 chassis
22 channel-section steels
23 bolts hole
24 tight a bolt
25 nuts
3 formwork erections
31 concrete deformation instrument connections
4 side forms
41 air levels
5 embedded iron parts
51 embedded iron parts steel plates
6 thermocouples and thermometer
71 supports
72 Magnetic gauge stands
73 displacement transducers
Detailed description of the invention
Below in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, this utility model is illustrated.
A kind of shrinkage deformation measurement apparatus (hereinafter referred to as device), including concrete sample 1, base 2, formwork erection 3, side form 4, support 71, Magnetic gauge stand 72, displacement transducer 73.
Concrete sample 1 both sides are respectively provided with embedded iron parts 5 and embedded iron parts steel plate 51, and embedded iron parts 5 is made by spiral, and it has screw thread for cylindrical and cylinder；One end of embedded iron parts 5 and embedded iron parts steel plate 51 connect fixing；Embedded iron parts 5 stretches into the inside of concrete sample 1；Embedded iron parts steel plate 51 has one side to expose from concrete sample 1, and one side that embedded iron parts steel plate 51 exposes from concrete sample 1 and concrete sample 1 expose the one side copline of this embedded iron parts steel plate 51.Owing to embedded iron parts 5 and embedded iron parts steel plate 51 are iron and steel material quality, its linear expansion coefficient is close with concrete, increases the degree of accuracy of test.Owing to the cylinder of embedded iron parts 5 has screw thread, so can increase the gmatjpdumamics between embedded iron parts 5 and concrete sample 1, increase the degree of accuracy of test.
Thermocouple and thermometer 6 are set in concrete sample 1, it is possible to control the temperature within concrete sample 1 in the scope specified, it is ensured that experimental condition is accurate.
Base 2 by two channel-section steels 22, chassis 21, tight a bolt 24 and nut 25 form, two channel-section steels 22 are arranged on chassis 21；The two ends of two channel-section steels 22 are respectively arranged with a bolt hole 23, tight a bolt 24 through two bolts hole 23 being fastened by nut 25.Tight a bolt after fastening 24 central axis be provided with the face (two screwed holes 23 of 24 traverses that tight a bolt after fastening are called one group of screwed hole 23) of bolt hole 23 in channel-section steel 22.
Two formwork erections 3 are respectively by the tighting a bolt 24 supports and be kept upright of two ends being fixed on two channel-section steels 22.Formwork erection 3 be provided centrally with running through the concrete deformation instrument connection 31 of formwork erection 3.
Two side forms 4 are supported by two channel-section steels 22 respectively and are kept upright.The long and short edge direction of side form 4 is provided with an air level 41, for confirming the levelness of this device, it is ensured that experimental condition is accurate.
Side form 4 could be arranged to the structure of hollow, it is possible to reduces its weight, improves portability.
Base 3, two side forms 4 of 2, two formwork erections form die cavity, for casting concrete test specimen 1.The one side that base 3, two side forms 4 of 2, two formwork erections contact with concrete sample 1 is through glaze paint PROCESS FOR TREATMENT, form glaze paint PROCESS FOR TREATMENT layer, reduce the friction between concrete sample 1 and base 3, two side forms 4 of 2, two pieces of formwork erections, increase the degree of accuracy of test.
A channel-section steel 22 among two channel-section steels 22, its two ends are provided with support 71；Support 71 connects displacement transducer 73, and displacement transducer 73 connects Magnetic gauge stand 72, and Magnetic gauge stand 72 contacts with embedded iron parts steel plate 51 through concrete deformation instrument connection 31 and is fixed with embedded iron parts steel plate 51.After concrete sample 1 drying shrinkage, embedded iron parts 5 and embedded iron parts steel plate 51 are also subjected to displacement accordingly, and embedded iron parts steel plate 51 adsorbs Magnetic gauge stand 72 makes the numerical value that displacement transducer 73 shows change, thus measuring the dry-shrinkage deformed amount of concrete sample 1.
From the foregoing, the section components of this device, such as channel-section steel 22, embedded iron parts 5, nut 25, tight a bolt 24, support 71, Magnetic gauge stand 72, displacement transducer 73 etc. can be all cheap standard component, so this device is cheap.
From the foregoing, it is two blocks of channel-section steels 22, chassis 21, some 24 and some nuts 25 of tighting a bolt that base 2 can be dismantled easily；After base 2 is disassembled, two pieces of formwork erections 3 and two side forms 4 are not owing to having supporter, and it is also disassembled naturally.After completing the assembling of base 2, insert two pieces of formwork erections 3 and two side forms 4 can complete to install.From the above, it is seen that the dismounting of this device is more convenient.
It should be noted that, the two ends of two channel-section steels 22 can arrange the bolt hole 23 of more than three groups (at least to be needed two to tight a bolt and 24 supports two formwork erections 3 respectively, accordingly, required bolt hole 23 is minimum is two groups), tight a bolt 24 through difference group bolts hole 23 and fastened by nut 25, formwork erection 3 is supported on diverse location, coordinates various sizes of side form 4, it is possible to make the concrete sample 1 of different size A.The distance between two groups of channel-section steels 22 can be regulated by the degree of tightening of adjusting nut 25, side form 4 is supported on different positions, coordinate various sizes of formwork erection 3, it is possible to make the concrete sample 1 of different size B.The versatility of this device and availability are higher from the above.
Claims (2)
1. a shrinkage deformation measurement apparatus, including concrete sample (1), base (2), formwork erection (3), side form (4), support (71), Magnetic gauge stand (72), displacement transducer (73)；It is characterized in that:
Described concrete sample (1) both sides are respectively provided with embedded iron parts (5) and embedded iron parts steel plate (51), described embedded iron parts (5) is made by spiral, described embedded iron parts (5) has screw thread for cylindrical and cylinder, one end of described embedded iron parts (5) and described embedded iron parts steel plate (51) connect fixing, described embedded iron parts (5) stretches into the inside of described concrete sample (1), and described embedded iron parts steel plate (51) has one side to expose from described concrete sample (1)；
Thermocouple and thermometer (6) are set in described concrete sample (1)；
Described base (2) by two channel-section steels (22), chassis (21), tight a bolt (24) and nut (25) forms, two described channel-section steels (22) are arranged on described chassis (21), the two ends of two described channel-section steels (22) are respectively arranged with a bolt hole (23), described in tight a bolt (24) through two described bolts hole (23) and by described nut (25) fasten；
The quantity of described formwork erection (3) is two, described formwork erection (3) be provided centrally with running through the concrete deformation instrument connection (31) of described formwork erection (3)；
The quantity of described side form (4) is two, and the long and short edge direction of described side form (4) is provided with air level (41)；
The one side that described base (2), two described formwork erections (3), two described side forms (4) contact with described concrete sample (1) is glaze paint PROCESS FOR TREATMENT layer；
The two ends of a described channel-section steel (22) among two described channel-section steels (22) are provided with described support (71), described support (71) connects institute's displacement sensors (73), institute's displacement sensors (73) connects described Magnetic gauge stand (72), and described Magnetic gauge stand (72) contacts with described embedded iron parts steel plate (51) through described concrete deformation instrument connection (31) and is fixed with described embedded iron parts steel plate (51).
2. a kind of shrinkage deformation measurement apparatus as claimed in claim 1, it is characterised in that: the quantity of the described bolt hole (23) that the two ends of two described channel-section steels (22) are arranged is more than three groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135620.2U CN205374449U (en) | 2015-12-26 | 2015-12-26 | Air shrinkage of concrete warp measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521135620.2U CN205374449U (en) | 2015-12-26 | 2015-12-26 | Air shrinkage of concrete warp measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205374449U true CN205374449U (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521135620.2U Expired - Fee Related CN205374449U (en) | 2015-12-26 | 2015-12-26 | Air shrinkage of concrete warp measuring device |
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| CN (1) | CN205374449U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771097A (en) * | 2016-12-16 | 2017-05-31 | 中国建筑材料科学研究总院 | Concrete shrinkage and drying shrinkage pressure tester and test method |
| CN107014346A (en) * | 2017-05-31 | 2017-08-04 | 济南大学 | The device tested suitable for the deformation after to theing cement solidifies |
| CN109946440A (en) * | 2019-03-25 | 2019-06-28 | 广东工业大学 | A kind of measuring device and method of self-compacting concrete self-constriction amount |
| CN110043221A (en) * | 2019-05-31 | 2019-07-23 | 中国海洋石油集团有限公司 | A kind of device measuring cementing concrete ring microannulus |
| CN110080716A (en) * | 2019-05-31 | 2019-08-02 | 中国海洋石油集团有限公司 | A method of measurement cementing concrete ring microannulus and microdilatancy |
| CN111122836A (en) * | 2020-01-16 | 2020-05-08 | 中铁第五勘察设计院集团有限公司 | Shrinkage value testing system, die system and shrinkage value testing method |
| CN113670705A (en) * | 2020-05-13 | 2021-11-19 | 上海飞机制造有限公司 | Appearance detection method of thin-wall part |
-
2015
- 2015-12-26 CN CN201521135620.2U patent/CN205374449U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771097A (en) * | 2016-12-16 | 2017-05-31 | 中国建筑材料科学研究总院 | Concrete shrinkage and drying shrinkage pressure tester and test method |
| CN107014346A (en) * | 2017-05-31 | 2017-08-04 | 济南大学 | The device tested suitable for the deformation after to theing cement solidifies |
| CN107014346B (en) * | 2017-05-31 | 2023-02-21 | 济南大学 | Device suitable for deformation after cement solidifies is tested |
| CN109946440A (en) * | 2019-03-25 | 2019-06-28 | 广东工业大学 | A kind of measuring device and method of self-compacting concrete self-constriction amount |
| CN110043221A (en) * | 2019-05-31 | 2019-07-23 | 中国海洋石油集团有限公司 | A kind of device measuring cementing concrete ring microannulus |
| CN110080716A (en) * | 2019-05-31 | 2019-08-02 | 中国海洋石油集团有限公司 | A method of measurement cementing concrete ring microannulus and microdilatancy |
| CN111122836A (en) * | 2020-01-16 | 2020-05-08 | 中铁第五勘察设计院集团有限公司 | Shrinkage value testing system, die system and shrinkage value testing method |
| CN113670705A (en) * | 2020-05-13 | 2021-11-19 | 上海飞机制造有限公司 | Appearance detection method of thin-wall part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20161226 |