CN206258458U - A kind of concrete shrinkage test device - Google Patents
A kind of concrete shrinkage test device Download PDFInfo
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- CN206258458U CN206258458U CN201621262734.8U CN201621262734U CN206258458U CN 206258458 U CN206258458 U CN 206258458U CN 201621262734 U CN201621262734 U CN 201621262734U CN 206258458 U CN206258458 U CN 206258458U
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- block
- concrete
- concrete test
- test block
- sliding block
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- 238000012360 testing method Methods 0.000 title claims abstract description 89
- 230000008602 contraction Effects 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 description 5
- 239000004568 cement Substances 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A kind of concrete shrinkage test device, including for placing concrete test block（1）Rack（2）, be fixedly installed in concrete test block（1）The embedded part at two ends（3）And for testing concrete test block（1）The dial gauge of amount of contraction（4）, rack（2）Including base（21）And base is fixedly installed in respectively（21）The positioning vertical column at two ends（22）And adjustable stand column（23）, positioning vertical column（22）On offer for by concrete test block（1）The guide rail of positioning（221）, the embedded part（3）Prominent concrete test block（1）Set and be embedded in guide rail（221）In, adjustable stand column（23）With dial gauge（4）It is detachably connected, concrete test block（1）Positioned at positioning vertical column（22）And adjustable stand column（23）Between and embedded part（3）Respectively with dial gauge（4）And guide rail（221）Contradict connection, the embedded part（3）Including being embedded in concrete test block（1）In sleeve（31）And it is sheathed on sleeve（31）In with sleeve（31）The sliding block being detachably connected（32）, sliding block（32）With guide rail（221）It is slidably connected.
Description
Technical field
The utility model is related to measuring apparatus field, more specifically, it relates to a kind of concrete shrinkage test device.
Background technology
Cement concrete is modern most widely used construction material, but contraction is the inherent characteristic of cement concrete, is mixed
Solidifying soil causes the phenomenon of cracking of common occurrence because of contraction.The volume stability of concrete and problem of Cracking are concrete durabilities
The important indicator of evaluation, is the important parameter of concrete structure quality, therefore, volume stability of concrete is furtherd investigate
It is of great immediate significance, the quality safety that the accuracy that concrete expansion contraction is tested will directly affect architectural engineering is commented
It is fixed.
A kind of concrete self-shrinkage measuring device as disclosed in authorizing the Chinese patent of Publication No. CN203881765U.It
Including concrete sample, pre embedded bolt, Magnetic gauge stand, displacement transducer, channel-section steel chassis, special Furon plate and thermocouple, channel-section steel bottom
Concrete sample is provided with disk, concrete sample outside is provided with Magnetic gauge stand, displacement transducer is provided with Magnetic gauge stand,
Concrete sample both sides are provided with pre embedded bolt, and concrete sample is internally provided with thermocouple, and pre embedded bolt outside passes with displacement
The measurement head of sensor is in contact；The die trial of concrete sample outer layer is lined with special Furon plate.The utility model simple structure, measurement
Accurately, for the cracking behaviors of the actual concrete structure of overall merit provide theoretical foundation.
Pre embedded bolt it is relatively costly, and pre embedded bolt is not damaged after off-test.Therefore it is cost-effective, often surveys
Concrete sample can be broken into pieces and then screw rod is retrieved into recycling, the relatively complicated inconvenience of process by examination after terminating.Therefore need
A kind of new scheme is proposed to solve this problem.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of concrete shrinkage test dress
Put, by the guide rail for setting embedded part, positioning vertical column and be arranged on positioning vertical column, one end of concrete test block can be positioned,
Preferably limit concrete test block position；It is detachable with sliding block by setting sleeve, improve the utilization rate of sliding block, and convenient disassembly.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of concrete shrinkage is surveyed
Trial assembly is put, including for place concrete test block rack, be fixedly installed in concrete test block two ends embedded part and for test concrete examination
The dial gauge of block amount of contraction, rack includes base and is fixedly installed in the positioning vertical column at base two ends and adjustable vertical respectively
Post, offers the guide rail for concrete test block to be positioned on positioning vertical column, the embedded part protrudes concrete test block and sets and be embedded in guide rail,
Adjustable stand column is detachably connected with dial gauge, concrete test block be located between positioning vertical column and adjustable stand column and embedded part respectively with dial gauge
Contradicted with guide rail and connected, the embedded part includes the sleeve that is embedded in concrete test block and be sheathed in sleeve detachably to connect with sleeve
The sliding block for connecing, sliding block is connected with slide.
By using above-mentioned technical proposal, concrete test block is positioned on rack, by positioning vertical column by the one of concrete test block
, then be fixed on dial gauge on adjustable stand column and contradicted with the embedded part in concrete test block by end positioning, reads dial gauge scale value simultaneously
Record, then measures again over time, and its variable quantity is concrete test block stroke during this period of time.When concrete test block is received
There is relative skew during to side force, between meeting and rack, incline, influence the measured value of dial gauge, by setting guide rail, can
The contact area of increase embedded part and slide rail, and reduce influence of the side force to concrete test block, makes positioning vertical column to the positioning of concrete test block
It is more accurate.
The utility model is further arranged to：The sleeve is threadedly coupled with sliding block.
By using above-mentioned technical proposal, it is detachably connected by by embedded part, makes the repeatable utilization of sliding block, it is cost-effective,
Threaded connection is more convenient for operating.
The utility model is further arranged to：Slide rail and the draw-in groove being connected with slide rail are offered in the sleeve, it is sliding
Block is provided with projection, and projection is fixed on sleeve along slide rail into draw-in groove and by sliding block.
By using above-mentioned technical proposal, by by sleeve and sliding block clamping, being easy to the dismounting of embedded part, sliding block is improve
Utilization rate.During dismounting sliding block and sleeve, projection is slided to from draw-in groove slide rail by rotation tabs and is skidded off from slide rail.
The utility model is further arranged to：The fixture block for slide rail to be blocked is slidably connected on sliding block.
By using above-mentioned technical proposal, slide rail closure first can be avoided projection from sliding out to slide rail by draw-in groove, reinforce sliding block with
Connection between sleeve.
The utility model is further arranged to：Two ends are provided between the fixture block and sliding block to be contradicted with fixture block and sliding block respectively
The spring of connection.
By using above-mentioned technical proposal, when fixture block is skidded off along sliding block from slide rail, spring produces certain bounce, will
Fixture block is pushed back, therefore spring can be used to fix position of the fixture block in slide rail, when taking out fixture block from slide rail, also needs to overcome spring
Bounce.
The utility model is further arranged to：Some through holes for placing dial gauge are offered on the adjustable stand column
One, offer the screwed hole one being connected with through hole one on through hole one, it is equipped with screwed hole one for dial gauge to be fixed
Tight fixed bolt one.
By using above-mentioned technical proposal, by setting some through holes one, the height of dial gauge is can adjust, make its applicable
In the concrete test block of different height, or the different height of concrete test block is measured.By setting tight fixed bolt one, tight fixed bolt
One is inconsistent with dial gauge, can clamping dial gauge, position of the fixed dial gauge in through hole one.
The utility model is further arranged to：The cross section of the guide rail and embedded part be in " convex " set up of character patt ern, guide rail and
Embedded part is mutually fitted together to.
By using above-mentioned technical proposal, embedded part can be blocked, it is to avoid embedded part departs from guide rail；Also embedded part can be increased with guide rail
Contact area, preferably reduces influence of the external force to concrete test block position.
The utility model is further arranged to：The base includes body and is arranged on body to be used to place concrete test block
Some support bars.
When directly concrete test block is put on body, because concrete test block bottom surface and body are completely attached to, it is more difficult to take out, by adopting
With above-mentioned technical proposal, there is certain interval between support bar and concrete test block, concrete test block is lifted, is easy to by hand in can be placed on gap
Pick and place concrete test block.
The utility model is further arranged to：The base is provided with the gib block for limiting concrete test block position, is oriented to
Bar is located at concrete test block both sides and is contradicted with concrete test block and is connected.
By using above-mentioned technical proposal, gib block can fix the position of concrete test block, its position is not inclined with base
Tiltedly deviate, the accuracy of test result can be improved.
In sum, the utility model has the advantages that simple structure, easy to operate.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the front view of concrete shrinkage test device；
Fig. 3 is rack structure chart；
Fig. 4 is the structural representation of embodiment 2；
Fig. 5 is the explosive view of embedded part；
Fig. 6 is the upward view of sliding block.
In figure：1st, concrete test block；2nd, rack；21st, base；211st, body；212nd, support bar；213rd, gib block；22nd, position
Column；221st, guide rail；23rd, adjustable stand column；231st, through hole one；232nd, screwed hole one；3rd, embedded part；31st, sleeve；311st, slide rail；
312nd, draw-in groove；32nd, sliding block；321st, projection；322nd, locating slot；323rd, gathering sill；33rd, fixture block；331st, guide pad；34th, spring；4、
Dial gauge；5th, tight fixed bolt one；6th, gib block.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
Embodiment 1：Concrete shrinkage test device is a kind of device for testing the contracted length of concrete test block 1, such as Fig. 1 institutes
Show, including be fixedly installed in the embedded part 3 and the rack 2 for placing concrete test block 1 at the two ends of concrete test block 1.
As shown in Fig. 2 embedded part 3 includes the sleeve 31 that is embedded in concrete test block 1 and is sheathed in sleeve 31 and sleeve 31
The sliding block 32 of threaded connection.By placing sleeve 31 in a mold, then cement is poured into and make concrete test block 1 in mould in mould
Moulding by casting.
As shown in figure 3, rack 2 includes base 21 and is fixedly installed in the He of positioning vertical column 22 at the two ends of base 21 respectively
Adjustable stand column 23.Base 21 is steelwork component, and to make concrete test block 1 pick and place conveniently, base 21 is by the body that is touched with ground
211 and it is fixedly installed on body 211 to be used to placing some support bars 212 of concrete test block 1 and constitutes, support bar 212 is each other
It is arranged in parallel.It is that, to 1 position-limiting action of concrete test block, external force is between concrete test block 1 and rack 2 in preferably reducing experimentation
The influence of relative position, can set gib block 213 in the top of support bar 212, and gib block 213 is located at the both sides of concrete test block 1, works as placement
During concrete test block 1, concrete test block 1 need to be embedded between gib block 213.
As shown in Fig. 2 the measuring accuracy to improve dial gauge 4, can be in sliding block 32 and the measurement head contact jaw of dial gauge 4
Locating slot 322 is set, is measured in the measurement head insertion locating slot 322 of dial gauge 4.
As shown in figure 3, one end of base 21 is installed with positioning vertical column 22, positioning vertical column 22 is provided with for concrete to be tried
The guide rail 221 of the end of block 1 positioning.The shape of sliding block 32 is mutually agreed with guide rail 221 and is slided along guide rail 221.Because concrete test block 1 is in examination
It may happen that skew, can be in " convex " set up of character patt ern, the shape of sliding block 32 and guide rail 221 by the cross section of guide rail 221 during testing
Mutually agree with, make the guide rail 221 can be to 3 more preferable positioning actions of embedded part, it is to avoid it receives side force to shrink skew.
As shown in figs. 1 and 3, the other end of base 21 is installed with adjustable stand column 23, if being equipped with adjustable stand column 23
The through hole 1 for placing dial gauge 4 is done, the screwed hole 1 being connected with through hole 1 is offered on through hole 1,
The axis perpendicular of the axis of screwed hole 1 and through hole 1 and it is generally aligned in the same plane, and is equipped with screwed hole 1
Tight fixed bolt 1, by tightening tight fixed bolt 1, dial gauge 4 is fixed.
Operating procedure is as follows：Embedded part 3 on the one end of concrete test block 1 is inserted in guide rail 221 and along guide rail 221 by concrete test block 1
It is positioned on support bar 212 and inconsistent with positioning vertical column 22.Unscrew tight fixed bolt 1, the height according to concrete test block 1 is by percentage
Table 4 is inserted in the through hole 1 of appropriate height, makes the measurement head of dial gauge 4 inconsistent with embedded part 3, then tightens tight fixed bolt
One 5, dial gauge 4 is positioned, read the scale of dial gauge 4.
Embodiment 2：As shown in Figs. 4-6, it is embedded part 3 with the difference of embodiment 1.Embedded part 3 includes being embedded in concrete test block
Sleeve 31 in 1 and the sliding block 32 being sheathed in sleeve 31, sliding block 32 and the clamping of sleeve 31.Slide rail is offered in sleeve 31
311 and the draw-in groove 312 that is connected with slide rail 311, sliding block 32 is provided with projection 321, and projection 321 enters draw-in groove along slide rail 311
Sliding block 32 and sleeve 31 are fixed in 312.
Be further closure slide rail 311, sliding block 32 is provided with the fixture block 33 being slidably connected with sliding block 32, the shape of fixture block 33 with
Slide rail 311 mutually agrees with and the length of fixture block 33 is longer than slide rail 311.By setting gathering sill 323 on sliding block 32, set on fixture block 33
Respective shoe 331, gathering sill 323 is embedded in guide pad 331 so that fixture block 33 is moved along sliding block 32.
Two ends are provided between fixture block 33 and sliding block 32 and contradict the spring 34 being connected with fixture block 33 and sliding block 32 respectively.
Embodiment 3：The annexation and embedded part 3 for being concrete test block 1 with positioning vertical column 22 with the difference of embodiment 1,
Groove can be set in both mold ends, making the concrete test block 1 of moulding by casting also there are corresponding recesses.It is provided with guide rail 221 along guide rail 221
The sliding block 32 of slip, in the insertion groove of sliding block 32, positions to concrete test block 1.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (9)
1. a kind of concrete shrinkage test device, including for placing concrete test block（1）Rack（2）, be fixedly installed in concrete examination
Block（1）The embedded part at two ends（3）And for testing concrete test block（1）The dial gauge of amount of contraction（4）, it is characterised in that：Rack（2）
Including base（21）And base is fixedly installed in respectively（21）The positioning vertical column at two ends（22）And adjustable stand column（23）, position vertical
Post（22）On offer for by concrete test block（1）The guide rail of positioning（221）, the embedded part（3）Prominent concrete test block（1）Set and embedding
In guide rail（221）In, adjustable stand column（23）With dial gauge（4）It is detachably connected, concrete test block（1）Positioned at positioning vertical column（22）With can
Adjust column（23）Between and embedded part（3）Respectively with dial gauge（4）And guide rail（221）Contradict connection, the embedded part（3）Including embedded
In concrete test block（1）In sleeve（31）And it is sheathed on sleeve（31）In with sleeve（31）The sliding block being detachably connected（32）, it is sliding
Block（32）With guide rail（221）It is slidably connected.
2. concrete shrinkage test device according to claim 1, it is characterised in that：The sleeve（31）With sliding block（32）
Threaded connection.
3. concrete shrinkage test device according to claim 1, it is characterised in that：The sleeve（31）In offer cunning
Rail（311）And and slide rail（311）The draw-in groove being connected（312）, sliding block（32）It is provided with projection（321）, projection（321）Along sliding
Rail（311）Into draw-in groove（312）In and by sliding block（32）It is fixed on sleeve（31）On.
4. concrete shrinkage test device according to claim 3, it is characterised in that：Sliding block（32）On be slidably connected it is useful
In by slide rail（311）The fixture block of closure（33）.
5. concrete shrinkage test device according to claim 4, it is characterised in that：The fixture block（33）With sliding block（32）
Between be provided with two ends respectively with fixture block（33）And sliding block（32）Contradict the spring of connection（34）.
6. concrete shrinkage test device according to claim 1, it is characterised in that：The adjustable stand column（23）On open up
Have some for placing dial gauge（4）Through hole one（231）, through hole（231）On offer and through hole one（231）It is connected
Screwed hole one（232）, screwed hole（232）On be equipped with for by dial gauge（4）Fixed tight fixed bolt one（5）.
7. concrete shrinkage test device according to claim 1, it is characterised in that：The guide rail（221）And embedded part（3）
Cross section be in " convex " set up of character patt ern, guide rail（221）And embedded part（3）It is mutually chimeric.
8. concrete shrinkage test device according to claim 1, it is characterised in that：The base（21）Including body
（211）And it is arranged at body（211）It is upper to be used to place concrete test block（1）Support bar（212）.
9. concrete shrinkage test device according to claim 1, it is characterised in that：The base（21）Be provided with for
Limitation concrete test block（1）The gib block of position（213）, gib block（213）Positioned at concrete test block（1）Both sides and with concrete test block（1）Contradict
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621262734.8U CN206258458U (en) | 2016-11-21 | 2016-11-21 | A kind of concrete shrinkage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621262734.8U CN206258458U (en) | 2016-11-21 | 2016-11-21 | A kind of concrete shrinkage test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206258458U true CN206258458U (en) | 2017-06-16 |
Family
ID=59026162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621262734.8U Expired - Fee Related CN206258458U (en) | 2016-11-21 | 2016-11-21 | A kind of concrete shrinkage test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206258458U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521187A (en) * | 2018-12-04 | 2019-03-26 | 中建西部建设湖南有限公司 | One kind is for detecting cement slurry self-constriction device and method |
| CN110375628A (en) * | 2019-06-10 | 2019-10-25 | 李健 | A kind of concrete work distortion measurement convergent-divergent instrument |
| CN114034808A (en) * | 2021-11-03 | 2022-02-11 | 大连海事大学 | A kind of cement-based material alkali-aggregate reaction measuring device and measuring method |
-
2016
- 2016-11-21 CN CN201621262734.8U patent/CN206258458U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109521187A (en) * | 2018-12-04 | 2019-03-26 | 中建西部建设湖南有限公司 | One kind is for detecting cement slurry self-constriction device and method |
| CN109521187B (en) * | 2018-12-04 | 2024-04-02 | 中建西部建设湖南有限公司 | Device and method for detecting self-shrinkage of cement paste |
| CN110375628A (en) * | 2019-06-10 | 2019-10-25 | 李健 | A kind of concrete work distortion measurement convergent-divergent instrument |
| CN114034808A (en) * | 2021-11-03 | 2022-02-11 | 大连海事大学 | A kind of cement-based material alkali-aggregate reaction measuring device and measuring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20170616 Termination date: 20171121 |