CN204007489U - A kind of concrete expansion and contraction measuring instrument - Google Patents
A kind of concrete expansion and contraction measuring instrument Download PDFInfo
- Publication number
- CN204007489U CN204007489U CN201420399963.9U CN201420399963U CN204007489U CN 204007489 U CN204007489 U CN 204007489U CN 201420399963 U CN201420399963 U CN 201420399963U CN 204007489 U CN204007489 U CN 204007489U
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- CN
- China
- Prior art keywords
- plate
- plane
- concrete
- height
- milscale
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000008602 contraction Effects 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000034189 Sclerosis Diseases 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002969 artificial stone Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000010339 dilation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a kind of concrete expansion and contraction measuring instrument, and the end face of base is inclined-plane, and inclined-plane and bottom surface angle are 10 °～60 °, and inclined-plane front and back ends has front end-plate, end plate, and side has baffle plate, and front end-plate, baffle plate, end plate are vertical with inclined-plane; The height of front end-plate, end plate is identical, and the height of baffle plate is 1/3～2/3 of front and back ends plate height; On described front end-plate, fix milscale, the measurement axle leading portion of described milscale is plane.While using the utility model, concrete sample is on inclined-plane, be an oblique angle, two surfaces of concrete sample are near the baffle plate of inclined-plane and side position, inclined-plane, make the end plate of concrete sample and milscale and inclined-plane low level remain close contact, the reading from milscale, can find out the situation of concrete expansion and contraction, can real-time continuous monitor concrete expansion and contraction, measure accurately.
Description
Technical field
The utility model relates to a kind of concrete expansion and contraction measuring instrument.
Background technology
Concrete is current very important civil engineering material, it be by Binder Materials, graininess gather materials, water, and the additive adding if desired and admixture prepare by a certain percentage, through uniform stirring, becomes a kind of artificial stone material after sclerosis.There is the characteristics such as compressive strength is high, good endurance, strength grade wide ranges due to concrete, so be widely used in civil engineering work.
But concrete also has the shortcoming of himself, contraction is concrete inherent characteristic, and concrete causes that the phenomenon of cracking is of common occurrence because of contraction.In Concrete process, add swelling agent and can effectively reduce concrete shrinkage cracking.Therefore, need to measure concrete expansion and shrinkage factor in concrete development process, the accuracy of concrete expansion and contraction test will directly affect the quality safety evaluation of construction work.
Concrete expansion in the market and contraction measuring instrument are divided into two kinds of contactless and contacts, and non-contact measurement instrument can be eliminated manual operation error, and measuring accuracy is high, but complex structure, install loaded down with trivial details, expensive; Contact type measurement instrument exists concrete sample to contact the factor that can cause obvious errors that closely do not wait with measuring instrument, or adopts two clock gauges to measure, and due to the error that error or the artificial reading of clock gauge self cause, causes measurement result low precision.
Summary of the invention
The purpose of this utility model aim to provide a kind of simple in structure, cost is low, measure accurate, easy to operate concrete expansion and contraction measuring instrument.
Implementation of the present utility model is, a kind of concrete expansion and contraction measuring instrument, and the end face of base is inclined-plane, inclined-plane and bottom surface angle are 10 °-60 °, inclined-plane front and back ends has front end-plate, end plate, and side has baffle plate, and front end-plate, baffle plate, end plate are vertical with inclined-plane; The height of front end-plate, end plate is identical, and the height of baffle plate is 1/3～2/3 of front and back ends plate height; On described front end-plate, fix milscale, the measurement axle leading portion of described milscale is plane.
While using the utility model, concrete sample is on inclined-plane, be an oblique angle, two surfaces of concrete sample are near the baffle plate of inclined-plane and side position, inclined-plane, make the end plate of concrete sample and milscale and inclined-plane low level remain close contact, the reading from milscale, can find out the situation of concrete expansion and contraction, can real-time continuous monitor concrete expansion and contraction, measure accurately.
The utility model is simple in structure, cheap, easy to operate, measures accurately.
Brief description of the drawings
Fig. 1 is the utility model structural front view.
Embodiment
The utility model is described in detail in detail with reference to the accompanying drawings.
With reference to Fig. 1, the end face of base 1 is inclined-plane, and inclined-plane and bottom surface angle are 10 °-60 °, and the angle of inclined-plane and bottom surface is 25 °, can make concrete sample tightr because gravity contacts with measuring instrument, the precision that the impact that can try one's best little is again measured.The end face of base 1 is inclined-plane, and inclined-plane and bottom surface angle are 10 °, 25 °, 45 °, 60 °.
Inclined-plane front and back ends has front end-plate 2, end plate 5, side has baffle plate 4, front end-plate 2, baffle plate 4, end plate 5 are vertical with inclined-plane, the height of front end-plate 2, end plate 5 is identical, the height of baffle plate 4 is 1/3～2/3 of front and back ends plate height, preferably, the height of baffle plate 4 is 1/2 of front and back ends plate height, picks and places concrete sample more convenient can make to test time.
On described front end-plate, fix milscale, milscale is electronic dial gauge 3, electronic dial gauge can be connected with computer, and continuous acquisition test figure, realizes real-time continuous and monitor concrete expansion and contraction.The measurement axle leading portion of electronic dial gauge 3 is plane, to coordinate the gauge head on concrete sample to carry out dilation measurement.Electronic dial gauge 3 is positioned on the longitudinal centre line of a described inclined base inclined-plane high position and end plate, can make measuring instrument entirety more regular, more attractive in appearance.
The end plate 4 of the described side position, inclined-plane that is positioned at inclined base is highly 1/2 of end plate 2 height of an inclined-plane high position,
While using the utility model, concrete sample is on inclined-plane, be an oblique angle, two surfaces of concrete sample are near the baffle plate of inclined-plane and side position, inclined-plane, make the end plate of concrete sample and milscale and inclined-plane low level remain close contact, reading from milscale, can find out the situation of concrete expansion and contraction, measures accurately.
Claims (4)
1. concrete expansion and a contraction measuring instrument, the end face that it is characterized in that base is inclined-plane, and inclined-plane and bottom surface angle are 10 °-60 °, and inclined-plane front and back ends has front end-plate, end plate, and side has baffle plate, and front end-plate, baffle plate, end plate are vertical with inclined-plane; The height of front end-plate, end plate is identical, and the height of baffle plate is 1/3～2/3 of front and back ends plate height; On described front end-plate, fix milscale, the measurement axle leading portion of milscale is plane.
2. concrete expansion according to claim 1 and contraction measuring instrument, is characterized in that described milscale is electronic dial gauge.
3. concrete expansion according to claim 1 and contraction measuring instrument, is characterized in that described electronic dial gauge (3) is positioned on the longitudinal centre line of a described inclined base inclined-plane high position and end plate.
4. concrete expansion according to claim 1 and contraction measuring instrument, the height that it is characterized in that baffle plate (4) is 1/2 of front and back ends plate height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399963.9U CN204007489U (en) | 2014-07-18 | 2014-07-18 | A kind of concrete expansion and contraction measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420399963.9U CN204007489U (en) | 2014-07-18 | 2014-07-18 | A kind of concrete expansion and contraction measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204007489U true CN204007489U (en) | 2014-12-10 |
Family
ID=52047476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420399963.9U Expired - Fee Related CN204007489U (en) | 2014-07-18 | 2014-07-18 | A kind of concrete expansion and contraction measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204007489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717283A (en) * | 2016-01-28 | 2016-06-29 | 山东大学 | Cement mortar drying shrinkage testing frame and testing method |
| CN106767357A (en) * | 2016-11-30 | 2017-05-31 | 中国建筑材料科学研究总院 | Wall body structure deformation measuring device |
-
2014
- 2014-07-18 CN CN201420399963.9U patent/CN204007489U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717283A (en) * | 2016-01-28 | 2016-06-29 | 山东大学 | Cement mortar drying shrinkage testing frame and testing method |
| CN106767357A (en) * | 2016-11-30 | 2017-05-31 | 中国建筑材料科学研究总院 | Wall body structure deformation measuring device |
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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 |
Granted publication date: 20141210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |