Two-dimensional concrete health monitoring method based on reinforcing steel bar electrodes

A technology of health monitoring and concrete, which is applied in the field of building material testing and concrete quality testing, and can solve problems such as not giving different testing methods

Inactive Publication Date: 2015-12-09
SICHUAN UNIV
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The invention proposes a monitoring method, but does not give different

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  • Two-dimensional concrete health monitoring method based on reinforcing steel bar electrodes
  • Two-dimensional concrete health monitoring method based on reinforcing steel bar electrodes
  • Two-dimensional concrete health monitoring method based on reinforcing steel bar electrodes

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[0055] The invention is based on the two-dimensional concrete health monitoring of steel bar electrodes. See attached figure 1 . The overall structure includes a planar two-dimensional concrete 1, a steel bar electrode and a multi-switch connection cable 2, a multi-switch combination 3, a concrete parameter measurement circuit 4 and a data acquisition server 5.

[0056] See figure 2 , 3 .

[0057] According to the concrete design requirements, determine the total number n of concrete reinforcement electrodes. In this embodiment, the total number of rebar electrodes provided is n=64. Lay n parallel steel electrodes 7-1~7-n linearly and equidistantly on the same horizontal surface in the concrete 6. The steel electrodes are numbered 1, 2, 3,..., n-2, n-1, n . The steel bar electrode is composed of a steel bar 8 and a cable connector 9. The steel bar 8 and the cable connector 9 are welded, the steel bar 8 is buried in the concrete, and the cable connector 9 is exposed out of the ...

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Abstract

The invention discloses a two-dimensional concrete health monitoring method based on reinforcing steel bar electrodes. N mutual-parallel reinforcing steel bar electrodes linearly laid on a same horizontal plane in two-dimensional concrete are connected to a concrete parameter measurement circuit, under control of a microprocessor, signals with different frequencies are emitted by a sine signal generator, and through concrete voltage amplification and resistance voltage amplification, different-frequency impedance modulus and phase positions of all the electrodes on the two-dimensional concrete are measured. The same-specification normal two-dimensional concrete impedance modulus and phase position values measured under different frequencies are compared with those of the measured two-dimensional concrete, the health condition of the two-dimensional concrete is determined, and a specific position of an unusual condition of the concrete is found out. The method has the beneficial effects that the two-dimensional concrete health condition is real-timely monitored, quality evaluation of buildings is timely done, and concrete lesions are forecasted and forewarned. The invention provides the two-dimensional concrete parameter measurement circuit convenient and reliable to use and remarkable in detection effect.

Description

(1) Technical field [0001] The invention belongs to building material detection and relates to concrete quality testing, in particular to two-dimensional concrete health monitoring based on reinforced electrodes. (2) Background technology [0002] Concrete is an important engineering material widely used in housing construction, bridge engineering, water conservancy engineering, etc. Concrete health detection and monitoring instruments are technical means to ensure the safe and long-term operation of concrete. Prediction, prediction, and diagnosis of concrete health are one of the main problems urgently needed to be overcome in the world today. Highways, bridges, dams, and other industrial and civil buildings all require regular or real-time health testing and monitoring. However, the existing concrete quality detection methods can not fully meet the needs of construction and development. The patent number is ZL2006100200932.8 Chinese patent "Concrete Damage Detection Meth...

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Application Information

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IPC IPC(8): G01N27/00G01N27/02
Inventor 莫思特李亮谭洁李碧雄
Owner SICHUAN UNIV
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