CN211697807U - Recycled cement concrete contractility testing arrangement - Google Patents
Recycled cement concrete contractility testing arrangement Download PDFInfo
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- CN211697807U CN211697807U CN202020271782.3U CN202020271782U CN211697807U CN 211697807 U CN211697807 U CN 211697807U CN 202020271782 U CN202020271782 U CN 202020271782U CN 211697807 U CN211697807 U CN 211697807U
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Abstract
The utility model discloses a recycled cement concrete contractility testing arrangement, including organism, base, controller, box and amesdial, the organism sets up on the base, is equipped with the box in the organism, and the box both sides are connected with the amesdial, and the amesdial is fixed on the organism; the improved solar water heater is characterized in that an indoor temperature sensor and an indoor humidity sensor are arranged inside the box body, an outdoor temperature controller and an outdoor humidity controller are arranged outside the box body, a thermal cycler is further arranged outside the box body, and the temperature controller and the humidity controller are respectively and electrically connected with a controller. The device is used for testing the contractility of the recycled cement concrete, and has the advantages of strong test operability, real reflection condition and reliable test data.
Description
Technical Field
The utility model relates to a road engineering construction equipment, concretely relates to recycled cement concrete contractility testing arrangement.
Background
The tensile strength of concrete is low, and cracks (shrinkage cracks) may be generated by shrinkage of concrete. This shrinkage cracking deteriorates the concrete structure, such as water resistance and air tightness, and also reduces the durability of the structure. Therefore, in order to ensure the durability of concrete, it is necessary to control shrinkage cracking.
Due to the aging and updating of infrastructure, China can generate a large amount of waste cement concrete every year, if the cement concrete is not utilized, the cement concrete not only needs to occupy land for stacking, but also causes resource waste, so that the recycling of the cement concrete is paid more and more attention in recent years. However, with the application of recycled cement concrete, it is found that some auxiliary structures usually generate early cracks mainly due to cracks generated by shrinkage of the recycled concrete, so that it is necessary to quantify the shrinkage performance of the recycled cement concrete in the mix proportion design process and provide a reference basis for the mix proportion design. However, currently, a corresponding testing device for the shrinkage performance of recycled cement concrete is lacked.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model aims at providing a simple and easy, convenient operation's recycled cement concrete contractility testing arrangement.
In order to realize the technical purpose, the utility model discloses a scheme is: the device for testing the contractility of the recycled cement concrete comprises a machine body, a base, a controller, a box body and dial indicators, wherein the machine body is arranged on the base, the box body is arranged in the machine body, the dial indicators are connected to two sides of the box body, and the dial indicators are fixed on the machine body; the improved solar water heater is characterized in that an indoor temperature sensor and an indoor humidity sensor are arranged inside the box body, an outdoor temperature controller and an outdoor humidity controller are arranged outside the box body, a thermal cycler is further arranged outside the box body, and the temperature controller and the humidity controller are respectively and electrically connected with a controller.
Preferably, the temperature controller includes a heater and a cooler.
Preferably, a glass observation door is arranged above the machine body.
Preferably, the temperature controller has a temperature range of 0 to 100 °.
Preferably, the temperature of the humidity controller is in the range of 50-100%.
The utility model has the advantages that: the device is used for testing the contractility of the recycled cement concrete, and has the advantages of strong test operability, real reflection condition and reliable test data.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, specific embodiment be a recycled cement concrete contractility testing arrangement, including organism 1, base 2, controller 3, box 4 and amesdial 5, organism 1 sets up on base 2, is equipped with box 4 in the organism 1, is provided with the test block in the box, not shown in the figure. 4 both sides of box are connected with amesdial 5, and amesdial 5 is fixed on the organism, and the amesdial is used for testing the pressure reading of concrete, 4 inside indoor temperature sensor 6 and the humidity transducer 7 of being equipped with of box, 4 external outdoor temperature controller 8 and the humidity controller 9 of being equipped with of box for the record reading, box 4 still are equipped with thermal cycler 10 outward, temperature controller 8 and humidity controller 9 electricity respectively are connected with controller 3, can control temperature and humidity controller's switch and regulation size through controller 3.
The humidity controller 9 is, for example, a sprayer, the temperature controller 8 includes a heater such as a spray heater and a cooler, although not shown, which is a pipe cooling, for lowering the temperature inside the concrete by supplying cold water to the concrete in advance, and a thermal cycler 10 such as a blower for uniformly thermally cycling the temperature of the curing box.
For convenient observation, a glass observation door 11 is arranged above the machine body 1. The temperature controller 8 of the device has a temperature range of 0-100 degrees, and the humidity controller 9 has a temperature range of 50-100 degrees.
The operation process of the device is as follows: 1. the device is plugged into a power supply, and whether the equipment operates normally is checked; 2. setting temperature and humidity through a controller, and adjusting the temperature and the humidity in the box body to the humidity and the temperature required by the test; 3. putting the test block into a box body, respectively ejecting the dial indicator to the side surface of the test block, and recording original reading R1 of the dial indicator; 4. reading the dial indicator at intervals of 4d until the dial indicator reading is not changed for three times continuously, and recording the final reading R2 of the dial indicator; 5. the shrinkage rate P of the concrete is (R2-R1)/L, wherein L is the length of the test block. The device is used for testing the contractility of the recycled cement concrete, and has the advantages of strong test operability, real reflection condition and reliable test data.
The above, only do the preferred embodiment of the present invention, not used to limit the present invention, all the technical matters of the present invention should be included in the protection scope of the present invention for any slight modification, equivalent replacement and improvement of the above embodiments.
Claims (5)
1. The utility model provides a recycled cement concrete contractility testing arrangement which characterized in that: the machine body is arranged on the base, the box body is arranged in the machine body, the dial indicators are connected to two sides of the box body, and the dial indicators are fixed on the machine body; the improved solar water heater is characterized in that an indoor temperature sensor and an indoor humidity sensor are arranged inside the box body, an outdoor temperature controller and an outdoor humidity controller are arranged outside the box body, a thermal cycler is further arranged outside the box body, and the temperature controller and the humidity controller are respectively and electrically connected with a controller.
2. The recycled cement concrete contractility testing apparatus according to claim 1, characterized in that: the temperature controller includes a heater and a cooler.
3. The recycled cement concrete contractility testing apparatus according to claim 1, characterized in that: a glass observation door is arranged above the machine body.
4. The recycled cement concrete contractility testing apparatus according to claim 1, characterized in that: the temperature controller has a temperature range of 0-100 deg.
5. The recycled cement concrete contractility testing apparatus according to claim 1, characterized in that: the temperature range of the humidity controller is 50-100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020271782.3U CN211697807U (en) | 2020-03-06 | 2020-03-06 | Recycled cement concrete contractility testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020271782.3U CN211697807U (en) | 2020-03-06 | 2020-03-06 | Recycled cement concrete contractility testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211697807U true CN211697807U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020271782.3U Active CN211697807U (en) | 2020-03-06 | 2020-03-06 | Recycled cement concrete contractility testing arrangement |
Country Status (1)
| Country | Link |
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| CN (1) | CN211697807U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114113193A (en) * | 2021-12-06 | 2022-03-01 | 郑州大学 | Fiber recycled concrete shrinkage cracking test device and test method |
-
2020
- 2020-03-06 CN CN202020271782.3U patent/CN211697807U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114113193A (en) * | 2021-12-06 | 2022-03-01 | 郑州大学 | Fiber recycled concrete shrinkage cracking test device and test method |
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