Device and method for controlling temperature of concrete curing water
A technology for controlling equipment and concrete, which is applied in the field of concrete curing water temperature control equipment and concrete curing water temperature control, and can solve problems such as concrete cold shock and concrete cracking.
Active Publication Date: 2008-10-15
NANJING HYDRAULIC RES INST THE MINISTRY OF WATER RESOURCES THE MINIST
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Problems solved by technology
If the water at around 20°C is directly used to maintain the concrete structure, there may be cold shock to the concrete, which will cause the temperature difference between the inside and outside of the concrete to exceed 25°C in an instant or for a period of time, resulting in cracking of the concrete
Method used
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Embodiment 1
[0023] Embodiment 1, with reference to figure 1 : Concrete curing water temperature control equipment is provided with a curing pool 1 and a curing water nozzle 2 drawn from the pool, a heater 3 is arranged in the curing water pipeline, and a relay for controlling its switch is arranged on the power supply of the heater 3. The relay for controlling the power switch of the heater is connected with a control chip. The concrete 4 that needs to be cured is provided with a temperature sensor 5, the output of the temperature sensor 5 is connected with the control chip; the chip is provided with control software, and the software can calculate whether the curing water needs to be heated according to the data of the temperature sensor 5. Before each maintenance, the control mechanism controls the switch of the maintenance water heater 3 according to the temperature of the concrete, and when the water temperature reaches an appropriate temperature, the water spray maintenance starts.
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The invention provides a device for controlling the temperature of concrete curing water, comprising a curing pond and a curing water spray head extending from the curing pond. The device is characterized in that a curing water piping is provided inside with a cross-flow type heater, a power supply of which is connected with a control mechanism; the concrete needing to be cured is provided with a temperature sensor, an output of which is connected with a power supply control mechanism of the heater. The method of using the device is as follows: the curing water piping is provided inside with the cross-flow type heater, the power supply of which is connected with the control mechanism; the concrete needing to be cured is provided with the temperature sensor, the output of which is connected with the power supply control mechanism of the heater; in each curing, the control mechanism can control the on-off of the curing water heater according to the temperature of the concrete, when the water temperature reaches a proper temperature, the water spray curing starts. The device can control the temperature difference between the temperature of the concrete curing water and the internal temperature of the concrete within 25 DEG C, thereby ensuring the concrete surface not to break due to the snap chilling of the curing water.
Description
technical field [0001] The application relates to a concrete construction technology, in particular to a concrete curing water temperature control device and a method for controlling the concrete curing water temperature using the device. Background technique [0002] The temperature difference between inside and outside of concrete is also one of the important reasons for concrete cracking. Measures to control the temperature difference between inside and outside of concrete include reducing the temperature rise of concrete hydration heat, reducing the temperature of concrete entering the mold, external insulation of concrete, and cooling of concrete through water. [0003] During the construction process of the project site, tap water, river water, ground water, etc. are usually used for concrete maintenance. Under normal circumstances, the temperature of groundwater is between 10°C and 20°C, and it fluctuates with the seasons. If the water at about 20°C is directly used...
Claims
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Login to View More IPC IPC(8): E02D15/00E04G21/02G05B19/042
CPCC04B40/0096
Inventor 陆采荣梅国兴刘伟宝王珩刘伟东
Owner NANJING HYDRAULIC RES INST THE MINISTRY OF WATER RESOURCES THE MINIST