Concrete stress testing system under high temperature and high pressure

Abstract

The invention discloses a concrete stress testing system under a high temperature and high pressure. The concrete stress testing system comprises a main body box, a pressurizing device, a stamping device, a sealing door structure, a temperature increasing device and a control system, the pressurizing device is installed on one side of the upper end of the main body box, the stamping device is installed in the middle portion of the main body box, and the sealing door structure is installed at the front end of the main body box. According to the concrete stress testing system, the stress of theconcrete under the high temperature and the high pressure can be tested, the pressurizing device and the temperature increasing device are controlled by the control system to achieve increasing and adjusting of the internal pressure and the temperature, the stamping device is controlled to stamp concrete to be detected to test a concrete sample by a nonmetal sound wave detector so as to extrude and fix a concrete piece to be tested, and therefore, the ultrasonic detection is completed under the condition of not damaging the surface of the concrete.

Description

technical field [0001] The invention relates to the field of concrete stress testing, in particular to a concrete stress testing system under high temperature and high pressure. Background technique [0002] Concrete is a composite material composed of cement slurry matrix and aggregate particles. With its advantages of economy, applicability and easy molding, concrete has become the most widely used building material in the world. There are certain voids and micro-cracks inside, which will show extremely complex elastic properties. During the design and service period of the structure, due to the influence of external factors such as external forces, temperature changes, and loads, the performance of concrete will degrade, accompanied by porosity. Development of cracks and micro-cracks etc. Therefore, the detection of the actual stress state of concrete materials can not only provide the necessary basis for the prevention and repair of concrete structure defects, but also ...

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Problems solved by technology

[0006] The existing devices for concrete stress testing using ultrasonic waves do not have specific equipment testing, and there are still certain disadvantages when using ultrasonic waves for testing. Adjustment and control, especially in the existing device, there is no effective way to adjust the concrete temperature; secondly, when testing the concrete, the existing ultrasonic detection device is not convenient for installing the transducer, and it is necessary to rely on external objects and The glue will fix the transducer on the concrete, and the concrete needs to be polished before fixing, which greatly reduces the test efficiency and has a certain impact on people's use process. Therefore, we propose a high-temperature and high-pressure Concrete Stress Testing System under

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