CN2625893Y - Cement concrete material early shrinkage measuring device - Google Patents
Cement concrete material early shrinkage measuring device Download PDFInfo
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- CN2625893Y CN2625893Y CN03222138.XU CN03222138U CN2625893Y CN 2625893 Y CN2625893 Y CN 2625893Y CN 03222138 U CN03222138 U CN 03222138U CN 2625893 Y CN2625893 Y CN 2625893Y
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- sample
- concrete material
- cement concrete
- die
- material early
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- 239000004567 concrete Substances 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 29
- 239000004568 cement Substances 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims description 11
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000011161 development Methods 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 239000002002 slurry Substances 0.000 description 7
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000007573 shrinkage measurement Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to a cement concrete material early shrinkage factor measuring device belongs to building material capability test technical field. The device comprises a sample die and a length measuring instrument, wherein the sample die is a corrugated pipe with straight tubular ports at two ends, and the ports are provided with pipe plugs. When the device is used, a mixed concrete sample is added into a corrugated pipe die, two ends of the corrugated pipe die are sealed by pipe plugs, the sample is kept still until concrete materials are completely coagulated, then the sample connected with the die is placed into a length measuring instrument for measurement, the initial length and the subsequent length change of the sample can be measured, and the shrinkage rate of the sample is determined according to the length change. The utility model discloses simple structure, cost economy can satisfy the new demand of cement concrete material process technology development.
Description
Technical field
The utility model relates to a kind of measurement mechanism, and especially a kind of device that is specifically designed to the early-age shrinkage performance measurement of materials such as cement concrete belongs to the building materials technical field of performance test.
Background technology
Understand according to the applicant, the various devices that existing cement concrete material shrinkage factor is measured are basic engineering with GB GB751-81 all.During use, must first sample moulding, again through leaving standstill, operation such as precuring, initial length and later length variations are measured in the demoulding after common 24 hours then.Be that sample must be measured the initial length of sample then earlier through stripping process.
In fact, common cement slurry has been finished through 7～9 hours and has been condensed, and newly mixes flowability complete obiteration before cement slurry condenses end of cement mortar material or fresh concrete material, and the material appearance volume is definite.Therefore, should measure the initial length of sample setting time after the end immediately at cement slurry.But cement slurry has just been finished when condensing, and concrete sample intensity is very low, can not carry out the stripping process operation, and sample must leave standstill maintenance a period of time (being generally 24 hours), and intensity just can reach the requirement of the demoulding.This shows that existing cement concrete material shrinkage factor measurement mechanism can not be measured concrete sample and condense from cement slurry and finish contraction situation to finishing in this section of stripping process period.
Along with the development of cement concrete material technology, complementary Binder Materials addition content increases considerably in the concrete, water cement ratio reduces significantly, causes concrete early-age shrinkage rate, and particularly rate of self-contraction obviously increases.The early-age shrinkage rate of concrete material is fairly obvious to effect of material performance.Therefore need measure accurately concrete material early-age shrinkage rate.
Summary of the invention
The purpose of this utility model is: at the problem that existing measuring technique exists, proposes a kind of can concrete material condense finish after, without stripping process, directly carry out the cement concrete material early-age shrinkage rate measurement mechanism of shrinkage measurement.
In order to reach above purpose, cement concrete material early-age shrinkage rate measurement mechanism of the present utility model comprises sample mould and horizontal metroscope, and it is characterized in that: described sample mould is the corrugated tube that two ends are shaped on the straight tube-like port, and described port is furnished with pipe close.
During use, the setting time of pressing national standard method test water slurry body earlier.The concrete sample that will mix and stir joins in the corrugated tube mould then, two ends seal with pipe close, leaving standstill sample finished up to the setting time of cement slurry, the sample of mould of will ining succession is immediately put into horizontal metroscope and is measured, can measure sample initial length and later length variations, thereby determine the shrinkage factor of sample according to length variations.
Obviously, the utility model is simple in structure, and cost economy after can be implemented in concrete material final set and finishing, is carried out shrinkage immediately and measured, thereby satisfies the new demand of cement concrete material technology development.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the structural representation of an embodiment sample mould of the utility model.
Fig. 2 is an embodiment user mode of a utility model synoptic diagram.
Embodiment
Embodiment one
The cement concrete material early-age shrinkage rate measurement mechanism of present embodiment as depicted in figs. 1 and 2, sample mould is a plastic film capicitor 3, two ends are straight tube-like port 2.Two-port 2 is furnished with round table-like pipe close 1 respectively.Horizontal metroscope is referring to Fig. 2, mainly falls the fixed bar 6 that " product " font distributes by the back-up block 8 at two ends and three at middle part and is formed by fixedly connecting, and passes through fastening nail 5 fixedly dial gauge 4 and gauge head 7 on two back-up blocks 8 respectively.Horizontal metroscope is furnished with length standard bar 9.
During use, the concrete sample that mixes and stirs is joined in the plastic ripple pipe mold, two ends seal with pipe close 1, leave standstill sample up to the concrete material end of condensing, the sample of mould of will ining succession is afterwards put on two fixed bars 6 of horizontal metroscope, by par 9, can measure sample initial length and later length variations easily by the dial gauge reading, thereby determine the shrinkage factor of sample.
Facts have proved, the cement concrete material early-age shrinkage rate measurement mechanism cost economy of present embodiment, easy to use, measure accurately, can satisfy after concrete material condenses end, carry out the demand that shrinkage is measured immediately.
Claims (4)
1. a cement concrete material early-age shrinkage rate measurement mechanism comprises sample mould and horizontal metroscope, and it is characterized in that: described sample mould is the corrugated tube that two ends are shaped on the straight tube-like port, and described port is furnished with pipe close.
2. according to the described cement concrete material early-age shrinkage of claim 1 rate measurement mechanism, it is characterized in that: described plastic film capicitor two-port is furnished with round table-like pipe close respectively.
3. according to the described cement concrete material early-age shrinkage of claim 2 rate measurement mechanism, it is characterized in that: described horizontal metroscope mainly falls the fixed bar of " product " font distribution by the back-up block at two ends and three at middle part and is formed by fixedly connecting, fixedly dial gauge and gauge head respectively on described two back-up blocks.
4. according to claim 2 or 3 described cement concrete material early-age shrinkage rate measurement mechanisms, it is characterized in that: described horizontal metroscope is furnished with the length standard bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03222138.XU CN2625893Y (en) | 2003-05-27 | 2003-05-27 | Cement concrete material early shrinkage measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03222138.XU CN2625893Y (en) | 2003-05-27 | 2003-05-27 | Cement concrete material early shrinkage measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2625893Y true CN2625893Y (en) | 2004-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN03222138.XU Expired - Fee Related CN2625893Y (en) | 2003-05-27 | 2003-05-27 | Cement concrete material early shrinkage measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN2625893Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100371678C (en) * | 2006-03-16 | 2008-02-27 | 江苏博特新材料有限公司 | Method and apparatus for testing early self-deformation of concrete |
| CN102226803A (en) * | 2011-04-06 | 2011-10-26 | 同济大学 | Detection method of early autogenous shrinkage of cement mortar |
| CN1588060B (en) * | 2004-10-11 | 2012-05-23 | 同济大学 | Method for determining cement base material plasticity contraction stress |
| CN102759323A (en) * | 2012-07-19 | 2012-10-31 | 哈尔滨工业大学 | Method for testing own volume deformation of concrete by adopting flexible corrugated pipe |
| CN104764765A (en) * | 2015-03-23 | 2015-07-08 | 马根昌 | A concrete shrinkage tester |
| CN106932559A (en) * | 2017-04-06 | 2017-07-07 | 燕山大学 | A kind of test method for evaluating cement paste shrinkage |
| CN107957233A (en) * | 2017-12-18 | 2018-04-24 | 江苏苏博特新材料股份有限公司 | A kind of apparatus and method that concrete self-shrinkage is tested under temperature match curing conditions |
| CN108241051A (en) * | 2017-12-18 | 2018-07-03 | 江苏苏博特新材料股份有限公司 | The test device and test method of a kind of early age self-constriction of cement-based material |
| CN108254536A (en) * | 2017-12-18 | 2018-07-06 | 江苏苏博特新材料股份有限公司 | Bellows encapsulation plug, concrete self-shrinkage test device and method using it |
| CN108267470A (en) * | 2017-12-18 | 2018-07-10 | 江苏苏博特新材料股份有限公司 | The self-constriction test system and test method of cement-based material under a kind of temperature match curing conditions |
| CN108267567A (en) * | 2017-12-18 | 2018-07-10 | 江苏苏博特新材料股份有限公司 | The device and method that cement-based material self-constriction deforms under a kind of test temperature match curing conditions |
| CN111855974A (en) * | 2020-07-30 | 2020-10-30 | 安徽理工大学 | Measuring device for self-shrinkage of cement mortar test piece |
| CN112698014A (en) * | 2020-12-21 | 2021-04-23 | 三明莆炎高速公路有限责任公司 | Concrete self-contraction testing device |
| CN113960294A (en) * | 2021-10-11 | 2022-01-21 | 中冶武汉冶金建筑研究院有限公司 | Device and method for testing shrinkage rate of refractory mortar in brick joints |
| CN116148452A (en) * | 2023-04-20 | 2023-05-23 | 山东高速明董公路有限公司 | Cement stabilized macadam volume shrinkage measuring device |
-
2003
- 2003-05-27 CN CN03222138.XU patent/CN2625893Y/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1588060B (en) * | 2004-10-11 | 2012-05-23 | 同济大学 | Method for determining cement base material plasticity contraction stress |
| CN100371678C (en) * | 2006-03-16 | 2008-02-27 | 江苏博特新材料有限公司 | Method and apparatus for testing early self-deformation of concrete |
| CN102226803A (en) * | 2011-04-06 | 2011-10-26 | 同济大学 | Detection method of early autogenous shrinkage of cement mortar |
| CN102226803B (en) * | 2011-04-06 | 2014-05-21 | 同济大学 | Detection method of early autogenous shrinkage of cement mortar |
| CN102759323A (en) * | 2012-07-19 | 2012-10-31 | 哈尔滨工业大学 | Method for testing own volume deformation of concrete by adopting flexible corrugated pipe |
| CN104764765A (en) * | 2015-03-23 | 2015-07-08 | 马根昌 | A concrete shrinkage tester |
| CN104764765B (en) * | 2015-03-23 | 2017-06-30 | 鞠杰 | Concrete contraction percentage tester |
| CN106932559A (en) * | 2017-04-06 | 2017-07-07 | 燕山大学 | A kind of test method for evaluating cement paste shrinkage |
| CN108267567A (en) * | 2017-12-18 | 2018-07-10 | 江苏苏博特新材料股份有限公司 | The device and method that cement-based material self-constriction deforms under a kind of test temperature match curing conditions |
| CN108241051B (en) * | 2017-12-18 | 2020-05-26 | 江苏苏博特新材料股份有限公司 | Testing device and testing method for early-age self-shrinkage of cement-based material |
| CN108254536A (en) * | 2017-12-18 | 2018-07-06 | 江苏苏博特新材料股份有限公司 | Bellows encapsulation plug, concrete self-shrinkage test device and method using it |
| CN108267470A (en) * | 2017-12-18 | 2018-07-10 | 江苏苏博特新材料股份有限公司 | The self-constriction test system and test method of cement-based material under a kind of temperature match curing conditions |
| CN107957233A (en) * | 2017-12-18 | 2018-04-24 | 江苏苏博特新材料股份有限公司 | A kind of apparatus and method that concrete self-shrinkage is tested under temperature match curing conditions |
| CN108267470B (en) * | 2017-12-18 | 2020-05-26 | 江苏苏博特新材料股份有限公司 | Self-shrinkage test system and test method for cement-based material under variable temperature condition |
| CN107957233B (en) * | 2017-12-18 | 2020-05-26 | 江苏苏博特新材料股份有限公司 | Device and method for testing self-shrinkage of concrete under variable temperature condition |
| CN108241051A (en) * | 2017-12-18 | 2018-07-03 | 江苏苏博特新材料股份有限公司 | The test device and test method of a kind of early age self-constriction of cement-based material |
| CN108267567B (en) * | 2017-12-18 | 2020-05-26 | 江苏苏博特新材料股份有限公司 | Device and method for testing self-shrinkage deformation of cement-based material under variable temperature condition |
| CN108254536B (en) * | 2017-12-18 | 2020-11-17 | 江苏苏博特新材料股份有限公司 | Corrugated pipe packaging plug, concrete self-shrinkage testing device using same and concrete self-shrinkage testing method |
| CN111855974A (en) * | 2020-07-30 | 2020-10-30 | 安徽理工大学 | Measuring device for self-shrinkage of cement mortar test piece |
| CN112698014A (en) * | 2020-12-21 | 2021-04-23 | 三明莆炎高速公路有限责任公司 | Concrete self-contraction testing device |
| CN113960294A (en) * | 2021-10-11 | 2022-01-21 | 中冶武汉冶金建筑研究院有限公司 | Device and method for testing shrinkage rate of refractory mortar in brick joints |
| CN113960294B (en) * | 2021-10-11 | 2023-12-29 | 中冶武汉冶金建筑研究院有限公司 | Device and method for testing shrinkage rate of refractory mortar in brick joint |
| CN116148452A (en) * | 2023-04-20 | 2023-05-23 | 山东高速明董公路有限公司 | Cement stabilized macadam volume shrinkage measuring device |
| CN116148452B (en) * | 2023-04-20 | 2023-07-07 | 山东高速明董公路有限公司 | Cement stabilized macadam volume shrinkage measuring device |
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| 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 |