Concrete water cooling overall process testing device and method

A technology of water cooling and test device, which is used in measuring devices, material inspection products, and testing the strength of materials by applying stable tension/pressure to achieve the effect of structural stability.

Active Publication Date: 2016-03-23
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the influence of water pipe cooling on concrete, the influence of temperature, stress, deformation and crack development

Method used

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  • Concrete water cooling overall process testing device and method
  • Concrete water cooling overall process testing device and method
  • Concrete water cooling overall process testing device and method

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Embodiment Construction

[0161] The whole process test device of concrete cracking based on the real environment provided by the present invention is as follows: figure 1 As shown, it includes a main testing machine A and an auxiliary testing machine B. A computer D is also provided, and the computer D is connected with a control system D1 and a water cooling simulation system control system D2 through a data line. The control system D1 includes:

[0162] 1. The control unit for controlling various actuators of the real environment simulation system in the main testing machine A and auxiliary testing machine B;

[0163] 2. The control unit of the actuator in the main testing machine A that controls the loading of the concrete specimen is the control unit of the power device in the loading system.

[0164] The control system D2 includes: the control unit of each actuator in the water cooling simulation system D2 in the main testing machine A that controls the temperature of the concrete specimen.

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Abstract

The invention provides a concrete water cooling overall process testing device and method. A main testing machine comprises a concrete test sample containing device, and a test sample is placed in the concrete test sample containing device; a loading system is connected with a movable clamping chuck arranged on the concrete test sample containing device, a water cooling simulation system is arranged in a concrete test sample containing space and comprises a water pipe, the water pipe is provided with a water inlet and outlet connecting pipe which penetrates through the containing space to be connected with a water supplying device to form a loop, and the loop is provided with two executing mechanisms, that is, the cooling device and the circulating power device; a flowmeter and a water temperature sensor are arranged in the loop. According to the concrete water cooling overall process testing device and method, the self temperature stress developing process including the developing process of parameters such as adiabatic temperature rise, a thermal expansion coefficient, elasticity modulus and creep along with time of concrete in the overall process from pouring to hardening can be tested under the condition of multiple temperature control measures, and a true meteorological environment can be also simulated to simulate the temperature stress and the cracking mechanism which are influenced by natural factors. The device can set different temperature and constraint degree conditions including insulation, constant temperature, temperature rising and lowering process setting and the like as needed. The crack resistance of the concrete is evaluated through a concrete cracking overall process simulation test.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, and relates to a simulation test method for the whole process of water cooling of concrete based on a real environment and a test device using the method, and more specifically, relates to the simulation test of the whole process of water cooling of large-volume concrete Methods and Apparatus. Background technique [0002] For a long time, "no dam, no crack" has been an unsolved problem in the world. The appearance, performance and safety of the dam structure are affected by the appearance of cracks, and ultimately affect people's lives and properties. How to reduce or even prevent cracks has become a problem that project builders must consider. With the advancement of theoretical and technical research in related fields, the research work on dam concrete cracks has made significant progress, especially the temperature control and crack prevention of large-vo...

Claims

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Application Information

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IPC IPC(8): G01N3/18G01N3/02G01N17/00G01N33/38
Inventor 张国新刘毅王振红黄涛刘有志
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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