CN204065091U - Setting time of cement-based material measurement mechanism - Google Patents
Setting time of cement-based material measurement mechanism Download PDFInfo
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- CN204065091U CN204065091U CN201420442534.5U CN201420442534U CN204065091U CN 204065091 U CN204065091 U CN 204065091U CN 201420442534 U CN201420442534 U CN 201420442534U CN 204065091 U CN204065091 U CN 204065091U
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- setting time
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Abstract
The utility model relates to a kind of setting time of cement-based material measurement mechanism, comprise the shell with heat and moisture preserving effect, described shell is made up of insulation cylindrical shell and insulation cover, the inner bag for splendid attire concrete sample is placed with in described insulation cylindrical shell, the bottom center of described insulation cover is provided with to lower convexity to go deep into the protection tube in concrete sample, the first type vibration wire thermometer for measuring concrete sample hydration temperature is provided with in described protection tube, described first type vibration wire thermometer is electrically connected to the temperature data acquisition device be arranged on shell, described temperature data acquisition device is integrated with the timer for measuring concrete sample hydration time.This apparatus structure is simple, making is easy and cost is low, the convenient concrete of the mensuration at the construction field (site) temperature rise of continuous print aquation and time after stirring out machine, measurement result is accurate, thus by obtaining hydration rate start time accelerated period, end time accurately to the process of measurement data, to replace initial set, final setting time.
Description
Technical field
The utility model relates to a kind of setting time of cement-based material measurement mechanism.
Background technology
Aquation is the most basic, the most important feature of concrete, and setting and harden is then that aquation arrives the external body surface of certain one-phase now.In engineering, concrete initial set represents the engineering time limit, and final set represents that mechanical performance of concrete starts development.Initial set, the final setting time of correct mensuration concrete on construction site are most important for grasp installation opportunity, guarantee concrete quality.
At present, in Standard test method, generally measure concrete setting time with injection resistance meter: during mensuration, first get fine sand slurry with 5 mm sieves sieve from mixture, pour in special container, then measure penetration resistance during mortar injection certain depth at regular intervals, and draw time and penetration resistance graph of relation.General with horizontal axis representing time, the longitudinal axis represents penetration resistance, and in figure, penetration resistance is the time that 3.5 MPa and 28 MPa are corresponding be namely respectively initial set and final setting time.
There is following limitation in this assay method: (1) is only applicable to laboratory, can not be used for working-yard; (2) with the penetration resistance of the mortar sifted out, the setting time of evaluation on-site concrete, correlativity is bad; (3) operation inconvenience: for full-bodied concrete, the pumped commercial concrete that such as gel material content is large, self-compacting concrete, be difficult to sift out enough mortars at all, thus very inconvenient; Even if can mortar be sifted out, operate also pretty troublesome; (4) due to penetration resistance, with water-cement ratio relation, (concrete that water-cement ratio is little, penetration resistance increases very soon very greatly.But on-site concrete aquation is subject to the impact of temperature to a great extent, not necessarily so fast aquation), be subject to again the impact of concrete disintegration degree (for the concrete of bleeding, the mortar sifted out is very thin, containing a large amount of water reducer, the setting time of therefore measuring is very long), sometimes even can cause erroneous judgement.
Concrete hydration process comprises preinduction period, induction period, hydration rate accelerated period and hydration rate deceleration period double teacher, wherein hydration rate accelerated period is very crucial period, due to it start represent concrete coagulation sclerosis beginning, terminate to represent concrete aquation and enter the stage gradually slowly, therefore in fact the start time of concrete hydrating speed accelerated period can be equal to the presetting period, the end time is equal to final setting time.For this reason, it is not measure concrete initial set, final setting time that the applicant proposes one, but directly mensuration concrete hydrating speed accelerated period, starts the method with the end time, the method, by measuring the concrete temperature rise curve under certain condition, just can obtain the hydration rate accelerated period starting point of this concrete sample and the time of terminal exactly.
Utility model content
The purpose of this utility model is to provide a kind of constructability onsite application, measurement result setting time of cement-based material measurement mechanism accurately.
To achieve these goals, the technical solution of the utility model is: a kind of setting time of cement-based material measurement mechanism, comprise the shell with heat and moisture preserving effect, described shell is made up of insulation cylindrical shell and insulation cover, the inner bag for splendid attire concrete sample is placed with in described insulation cylindrical shell, the bottom center of described insulation cover is provided with to lower convexity to go deep into the protection tube in concrete sample, the first type vibration wire thermometer for measuring concrete sample hydration temperature is provided with in described protection tube, described first type vibration wire thermometer is electrically connected to the temperature data acquisition device be arranged on shell, described temperature data acquisition device is integrated with the timer for measuring concrete sample hydration time.
Preferably, the plastic foil of conveniently toppling over concrete sample or paper film is equipped with in described inner bag.
Preferably, described protection tube is copper pipe.
Preferably, described outer side is also provided with the second type vibration wire thermometer for measures ambient temperature, and described second type vibration wire thermometer is also electrically connected to the temperature data acquisition device be arranged on shell.
Preferably, described temperature data acquisition device is also electrically connected with liquid crystal display.
Preferably, described temperature data acquisition device is provided with USB interface.
Preferably, described temperature data acquisition device is also electrically connected with temperature signal emitter.
Compared with prior art, the utility model has the following advantages: this setting time of cement-based material measurement mechanism structure is simple, making is easy and cost is low, the convenient concrete of the mensuration at the construction field (site) temperature rise of continuous print aquation and time after stirring out machine, measurement result is accurate, thus by obtaining hydration rate start time accelerated period, end time accurately to the process of measurement data, to replace initial set, final setting time, serve site operation better.
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the utility model embodiment.
In figure: 1-shell, 11-is incubated cylindrical shell, 12-insulation cover, 2-inner bag, 3-protection tube, 4-first type vibration wire thermometer, 5-temperature data acquisition device, 6-USB interface, 7-second type vibration wire thermometer.
Embodiment
As shown in Figure 1, a kind of setting time of cement-based material measurement mechanism, comprise the shell 1 with heat and moisture preserving effect, described shell 1 is made up of insulation cylindrical shell 11 and insulation cover 12, the inner bag 2 for splendid attire concrete sample is placed with in described insulation cylindrical shell 11, the bottom center of described insulation cover 12 is provided with to lower convexity to go deep into the protection tube 3 in concrete sample, the first type vibration wire thermometer 4 for measuring concrete sample hydration temperature is provided with in described protection tube 3, the bottom center of insulation cover 12 is fixed in the upper end of described first type vibration wire thermometer 4, described first type vibration wire thermometer 4 is electrically connected to the temperature data acquisition device 5 be arranged on shell 4, described temperature data acquisition device 5 is integrated with the timer for measuring concrete sample hydration time.
In the present embodiment, described shell 1 and inner bag 2 constitute the structure of similar electric cooker, and described inner bag 2 can take out dress and gets and topple over concrete sample; Conveniently topple over concrete sample, in described inner bag 2, be equipped with plastic foil or paper film.In order to protect the first type vibration wire thermometer 4, described protection tube 3 is in column, and it is of a size of height about 100mm, diameter 10mm, can be made up of copper pipe.In order to test the impact of ambient temperature on shell 1 inner concrete hydration time, can also be provided with the second type vibration wire thermometer 7 for measures ambient temperature outside described shell 1, described second type vibration wire thermometer 7 is also electrically connected to the temperature data acquisition device 5 be arranged on shell 4.
In the present embodiment, described temperature data acquisition device 5 can based on single-chip microcomputer or PLC, and described temperature data acquisition device 5 is powered by direct supply or TunePower.In order to satisfied display or control needs, described temperature data acquisition device 5 can also be electrically connected with liquid crystal display.Conveniently reading temperature data, described temperature data acquisition device 5 is also provided with USB interface 6, and described USB interface 6 and liquid crystal display etc. can integrated control panels.In order to be sent to computing machine or mobile phone in real time, described temperature data acquisition device 5 can also be electrically connected with temperature signal emitter.
The using method of the present embodiment is as follows: when concrete is discharged into agitator truck after stirring out machine, sample; Load inner bag 2, close the insulation cover 12 of shell 1, the Test Switchboard of open temp data acquisition unit 5, first type vibration wire thermometer 4 constant duration ground thermometric and data acquisition, timer carries out time collection, and temperature and time data-signal stores by temperature data acquisition device 5 in time, process and show.Certainly, the hydration temperature collected and time data also can be sent to computing machine or mobile phone in real time, obtain by computing machine or handset processes the temperature curve that concrete sample is in hydration stage, and catch hydration rate accelerated period and start and the end time, as concrete initial set and final setting time.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (7)
1. a setting time of cement-based material measurement mechanism, it is characterized in that: comprise the shell with heat and moisture preserving effect, described shell is made up of insulation cylindrical shell and insulation cover, the inner bag for splendid attire concrete sample is placed with in described insulation cylindrical shell, the bottom center of described insulation cover is provided with to lower convexity to go deep into the protection tube in concrete sample, the first type vibration wire thermometer for measuring concrete sample hydration temperature is provided with in described protection tube, described first type vibration wire thermometer is electrically connected to the temperature data acquisition device be arranged on shell, described temperature data acquisition device is integrated with the timer for measuring concrete sample hydration time.
2. setting time of cement-based material measurement mechanism according to claim 1, is characterized in that: be equipped with the plastic foil or paper film of conveniently toppling over concrete sample in described inner bag.
3. setting time of cement-based material measurement mechanism according to claim 1, is characterized in that: described protection tube is copper pipe.
4. setting time of cement-based material measurement mechanism according to claim 1, it is characterized in that: described outer side is also provided with the second type vibration wire thermometer for measures ambient temperature, described second type vibration wire thermometer is also electrically connected to the temperature data acquisition device be arranged on shell.
5. setting time of cement-based material measurement mechanism according to claim 1, is characterized in that: described temperature data acquisition device is also electrically connected with liquid crystal display.
6. setting time of cement-based material measurement mechanism according to claim 1, is characterized in that: described temperature data acquisition device is provided with USB interface.
7. setting time of cement-based material measurement mechanism according to claim 1, is characterized in that: described temperature data acquisition device is also electrically connected with temperature signal emitter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442534.5U CN204065091U (en) | 2014-08-07 | 2014-08-07 | Setting time of cement-based material measurement mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420442534.5U CN204065091U (en) | 2014-08-07 | 2014-08-07 | Setting time of cement-based material measurement mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065091U true CN204065091U (en) | 2014-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420442534.5U Expired - Fee Related CN204065091U (en) | 2014-08-07 | 2014-08-07 | Setting time of cement-based material measurement mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204065091U (en) |
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2014
- 2014-08-07 CN CN201420442534.5U patent/CN204065091U/en not_active Expired - Fee Related
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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: 20141231 Termination date: 20170807 |