CN203964889U - A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat - Google Patents
A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat Download PDFInfo
- Publication number
- CN203964889U CN203964889U CN201420384519.XU CN201420384519U CN203964889U CN 203964889 U CN203964889 U CN 203964889U CN 201420384519 U CN201420384519 U CN 201420384519U CN 203964889 U CN203964889 U CN 203964889U
- Authority
- CN
- China
- Prior art keywords
- water tank
- cement
- test
- based material
- test specimen
- Prior art date
- 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.)
- Active
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat, comprise test water tank, on described test water tank, be provided with water tank inlet and water outlet of water tank, described test water tank both sides are provided with baffle plate, in described test water tank, being provided with test specimen sets a table, test specimen is provided with threaded line pipe test specimen on setting a table, described threaded line pipe test specimen both sides are respectively connected on the baffle plate of test water tank both sides by a seal closure, and the baffle plate of described test water tank both sides is respectively arranged with displacement meter outward; The measurement mechanism that the utility model provides, when measuring the self-shrinking value of cement-based material, without using the extraordinary displacement meter that can use under water, just can get rid of the impact of cement-based material hydration heat on material deformation in experimental stage, for researcher reduces experimentation cost, and provide test bit more accurately.
Description
Technical field
The utility model belongs to building materials fields of measurement, particularly a kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat.
Background technology
Along with the continuous progress and development of society, more and more higher to the performance requirement of the cement-based materials such as concrete in Practical Project, meanwhile, follow the height of high performance concrete to shrink the cracking cause also more and more general.And xoncrete structure cracking is the one of the main reasons that current practical structures project durability reduces.Therefore, in order to guarantee the permanance of xoncrete structure, to the cement-based material self-constrictions such as concrete measure research very necessary.
Cement-based material, in hydration process, can produce hydration heat with reaction.Especially in early days, hydration reaction acutely carries out, and can concentrate and discharge a large amount of hydration heat, makes the temperature rising of cement-based material very fast, even can be up to more than 70 ℃.According to principle of expanding with heat and contracting with cold, cement-based material is corresponding deformation also, and this accurate measurement on cement-based material self-constriction brings very large impact.For eliminating the impact of hydration heat on material self-shrinking value, general way is when late time data is processed at present, and people is the part deformation values that deducts to come because of temperature variation.But, by temperature variation, caused that the calculating of distortion mainly relies on experimental formula or regression formula, can not weed out very accurately the impact that temperature variation is brought, the precision of reprocessed self-shrinking value is also declined greatly.For this reason, design and a set ofly can remove the impact of hydration heat on distortion experimental stage is perfect, and the not high device of cost, just seem and be necessary very much.
Utility model content
The utility model provides a kind of self-shrinkage measuring device that can get rid of cement-based material hydration heat impact, and to solve in prior art the extraordinary displacement meter that must employing can use under water, experimentation cost is high, and the not accurate enough problem of test bit.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat, comprise test water tank, on described test water tank, be provided with water tank inlet and water outlet of water tank, described test water tank both sides are provided with baffle plate, in described test water tank, being provided with test specimen sets a table, test specimen is provided with threaded line pipe test specimen on setting a table, described threaded line pipe test specimen both sides are respectively connected on the baffle plate of test water tank both sides by a seal closure, and the baffle plate of described test water tank both sides is respectively arranged with displacement meter outward.
Further, described seal closure is telescopic sealing cover, can free-extension, and seal closure is diminished step by step toward interior from outer in test water tank, is shape of threads, and described seal closure is made by flexible plastic.
Further, test specimen is provided with groove on setting a table, and is provided with threaded line pipe test specimen on described groove, and the diameter of described groove is greater than the diameter of threaded line pipe test specimen, and described groove is circular arc.
Described test water tank two side shield centers are respectively provided with a circular hole, and described circular hole bound edge stretches in test water tank.
Further, the probe of described displacement meter, by the circular hole on the baffle plate of test water tank both sides, is aimed at the center at threaded line pipe test specimen two ends.
Further, described seal closure and threaded line pipe test specimen junction are sealed by the first rubber band, and the diameter of described the first rubber band is less than the diameter of threaded line pipe test specimen.
Further, described seal closure and circular hole junction are sealed by the second rubber band, and described the second rubber band diameter is less than Circularhole diameter.
Further, described water tank inlet is positioned at the bottom of test water tank one side, and described water tank inlet is connected with water tower or running water pipe.
Further, described water outlet of water tank is positioned at the top of test water tank opposite side, on described water outlet of water tank, is provided with tank intake valve of water, and described water outlet of water tank is connected with reserve tank or downcomer.
Further, four footing places that described test specimen is set a table are provided with nut.
The beneficial effects of the utility model: the measurement mechanism that the utility model provides, when measuring the self-shrinking value of cement-based material, without using the extraordinary displacement meter that can use under water, just can get rid of the impact of cement-based material hydration heat on material deformation in experimental stage, for researcher reduces experimentation cost, and provide test bit more accurately.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is telescopic sealing cover structure schematic diagram;
Wherein: 1-tests water tank, 2-telescopic sealing cover, 3-test specimen is set a table, 4-water tank inlet, 5-the first rubber band, 6-the second rubber band, 7-water outlet of water tank, 8-threaded line pipe test specimen, 9-displacement meter, 10-nut, 11-groove, 12-tank intake valve of water, 13-circular hole.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with embodiment, further set forth the present invention.
A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat, comprise test water tank 1, on described test water tank 1, be provided with water tank inlet 4 and water outlet of water tank 7, described test water tank 1 both sides are provided with baffle plate, in described test water tank 1, be provided with test specimen and set a table 3, test specimen is set a table on 3 and is provided with threaded line pipe test specimen 8, described threaded line pipe test specimen 8 both sides are respectively connected on the baffle plate of test water tank 1 both sides by a seal closure 2, and the baffle plate of described test water tank 1 both sides is respectively arranged with displacement meter 9 outward.
Described seal closure 2 is telescopic sealing cover, can free-extension, and seal closure 2 is diminished step by step toward interior from outer in test water tank 1, is shape of threads, and described seal closure 2 is made by flexible plastic.
Test specimen is set a table on 3 and is provided with groove 11, on described groove 11, is provided with threaded line pipe test specimen 8, and the diameter of described groove 11 is greater than the diameter of threaded line pipe test specimen 8, and avoiding threaded line pipe test specimen 8 to be stuck in groove 11 cannot free shrink, and described groove 11 is circular arc.
1 liang of side shield center of described test water tank is respectively provided with a circular hole 13, and described circular hole 13 bound edges stretch in test water tank 1, and circular hole 13 bound edges can dock with the larger one end of seal closure 2, and seals at seam crossing with the second rubber band 6 hoops.
The probe of described displacement meter 9, by the circular hole 13 on the baffle plate of test water tank 1 both sides, is aimed at the center at threaded line pipe test specimen 8 two ends, and the longitudinal axis of threaded line pipe test specimen 8 overlaps with test water tank 1 longitudinal axis horizontal projection.
Described seal closure 2 is with threaded line pipe test specimen 8 junctions by the first rubber band 5 sealings, and the diameter of described the first rubber band 5 is less than the diameter of threaded line pipe test specimen 8, to guarantee its sealing.
Described seal closure 2 is with circular hole 13 junctions by the second rubber band 6 sealings, and described the second rubber band 6 diameters are less than circular hole 13 diameters, to guarantee its sealing.
Described water tank inlet 4 is positioned at the bottom of test water tank 1 one sides, and described water tank inlet 4 is connected with water tower or running water pipe.
Described water outlet of water tank 7 is positioned at the top of test water tank 1 opposite side, on described water outlet of water tank 7, is provided with tank intake valve of water 12, and described water outlet of water tank 7 is connected with reserve tank or downcomer.
Set a table four footing places of 3 of described test specimen are provided with nut 10, and nut 10 can be adjusted set a table 3 height of test specimen.
Described test water tank 1 is interior can put many cover test specimens simultaneously, and circular hole 13, the test specimen of water tank both sides set a table 3 simultaneously, displacement meter 9 is also all corresponding supporting.
The making material of described test water tank 1 can be aluminium, stainless steel metal, can be also organic glass.The first described rubber band 5 diameters are than the little 5mm of threaded line pipe test specimen 8 diameter, and the second rubber band 6 diameters are than the little 20mm of diameter of circular hole 13 on 1 liang of side shield of test water tank.The described test specimen 3 upper surfaces line of symmetry longitudinally of setting a table has a circular groove 11, and the diameter of groove 11 is than the large 10mm-20mm of threaded line pipe test specimen 8 diameter.Described displacement meter 9 can be tangent displacement sensor, and clock gauge, LVDT can be also non-contact displacement transducers, eddy current type displacement transducer, laser displacement sensor.
More than show and described ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (10)
1. can get rid of the self-shrinkage measuring device that cement-based material hydration heat affects for one kind, comprise test water tank (1), on described test water tank (1), be provided with water tank inlet (4) and water outlet of water tank (7), described test water tank (1) both sides are provided with baffle plate, it is characterized in that: in described test water tank (1), be provided with test specimen set a table (3), test specimen is set a table on (3) and is provided with threaded line pipe test specimen (8), described threaded line pipe test specimen (8) both sides are respectively connected on the baffle plate of test water tank (1) both sides by a seal closure (2), the baffle plate of described test water tank (1) both sides is respectively arranged with displacement meter (9) outward.
2. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: described seal closure (2) is telescopic sealing cover, can free-extension, seal closure (2) is diminished step by step toward interior from outer in test water tank (1), be shape of threads, described seal closure (2) is made by flexible plastic.
3. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: test specimen is set a table on (3) and is provided with groove (11), on described groove (11), be provided with threaded line pipe test specimen (8), the diameter of described groove (11) is greater than the diameter of threaded line pipe test specimen (8), and described groove (11) is circular arc.
4. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: described test water tank (1) two side shield center is respectively provided with a circular hole (13), described circular hole (13) bound edge stretches in test water tank (1).
5. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: the probe of described displacement meter (9), by the circular hole (13) on the baffle plate of test water tank (1) both sides, is aimed at the center at threaded line pipe test specimen (8) two ends.
6. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: described seal closure (2) is with threaded line pipe test specimen (8) junction by the first rubber band (5) sealing, and the diameter of described the first rubber band (5) is less than the diameter of threaded line pipe test specimen (8).
7. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: described seal closure (2) is with circular hole (13) junction by the second rubber band (6) sealing, and described the second rubber band (6) diameter is less than circular hole (13) diameter.
8. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: described water tank inlet (4) is positioned at the bottom of test water tank (1) one side, and described water tank inlet (4) is connected with water tower or running water pipe.
9. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, it is characterized in that: described water outlet of water tank (7) is positioned at the top of test water tank (1) opposite side, on described water outlet of water tank (7), be provided with tank intake valve of water (12), described water outlet of water tank (7) is connected with reserve tank or downcomer.
10. the self-shrinkage measuring device that can get rid of cement-based material hydration heat impact according to claim 1, is characterized in that: set a table four footing places of (3) of described test specimen are provided with nut (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384519.XU CN203964889U (en) | 2014-07-14 | 2014-07-14 | A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420384519.XU CN203964889U (en) | 2014-07-14 | 2014-07-14 | A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203964889U true CN203964889U (en) | 2014-11-26 |
Family
ID=51925458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420384519.XU Active CN203964889U (en) | 2014-07-14 | 2014-07-14 | A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203964889U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075678A (en) * | 2014-07-14 | 2014-10-01 | 金陵科技学院 | Self-contraction measuring device and method capable of eliminating hydration heat influences of cement-based material |
-
2014
- 2014-07-14 CN CN201420384519.XU patent/CN203964889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075678A (en) * | 2014-07-14 | 2014-10-01 | 金陵科技学院 | Self-contraction measuring device and method capable of eliminating hydration heat influences of cement-based material |
| CN104075678B (en) * | 2014-07-14 | 2017-02-22 | 金陵科技学院 | Self-contraction measuring device and method capable of eliminating hydration heat influences of cement-based material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204630842U (en) | A kind of Hydraulic fracturing test device | |
| CN203964889U (en) | A kind of self-shrinkage measuring device that can get rid of the impact of cement-based material hydration heat | |
| CN205246145U (en) | Glass rotameter | |
| CN205271986U (en) | Large -scale return bend scribed circle ruler | |
| CN102121815B (en) | Differential settlement producing device and method for thin-walled cylindrical shell structure test | |
| CN204575153U (en) | A kind of high-precision ultrasonic water meter | |
| CN206627163U (en) | A kind of suspension type impact flow meter | |
| CN104075678A (en) | Self-contraction measuring device and method capable of eliminating hydration heat influences of cement-based material | |
| CN203024831U (en) | Portable sludge level meter | |
| CN204302027U (en) | A kind of blanking-tube sampling device tested | |
| CN204128473U (en) | A kind of simple type groove depth measurement mechanism | |
| CN203657844U (en) | Vacuum measuring tank | |
| CN204758177U (en) | Ultrasonic wave calorimeter of high accuracy | |
| CN207864824U (en) | A kind of novel circular tube sealing device | |
| CN204255467U (en) | Embedded style fuel tank fluid level meter | |
| CN204439155U (en) | A kind of novel gas header | |
| CN204128642U (en) | High precision level measuring magnetic grid device | |
| CN203688033U (en) | Hand-rotating type liquid level meter | |
| CN203731984U (en) | Chlorine-adding contact tank expansion joint monitoring device | |
| CN205656032U (en) | Tower cauldron bottom sampling device | |
| CN207066330U (en) | A kind of hand-held spiral inner wall degree of eccentricity detection means | |
| CN202676360U (en) | Pressure gauge stabilizing joint | |
| CN203364808U (en) | An auxiliary support for measuring the flatness of a reactor installing rack | |
| CN206583751U (en) | A kind of concrete slump detection combination instrument | |
| CN203745022U (en) | Flowmeter for rare earth solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |