Separation type concrete humidity field measuring device and method

A test device, concrete technology, applied in the direction of material inspection products, etc., can solve the problems that the humidity sensor cannot be embedded in advance, the internal humidity field test problem, and the humidity sensor is difficult to survive.

Pending Publication Date: 2019-05-28
SHANDONG UNIV +1
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] During the solidification process of concrete, there is a process of transition from liquid to solid state, and the humidity sensor is difficult to survive after being

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  • Separation type concrete humidity field measuring device and method
  • Separation type concrete humidity field measuring device and method
  • Separation type concrete humidity field measuring device and method

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[0037] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0038] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof;

[0039] For the convenience of description, if "first", "second" and "third" appear in the present invention, the...

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Abstract

The invention discloses a separation type concrete humidity field measuring device and method. The device includes a first pipe, a second pipe, a third pipe, a rubber piston, a humidity sensor and a wireless acquisition device; the two ends of the first pipe are open; one end of the second pipe is closed, the other end of the second pipe is open, and the outer diameter of the second pipe is slightly smaller than the inner diameter of the first pipe. The two ends of the third pipe are open, the outer diameter is slightly smaller than the inner diameter of the first pipe; the rubber piston and the humility sensor are placed in the third pipe, the humidity sensor is located on the lower portion of a rubber plug and connected with the wireless acquisition device.

Description

technical field [0001] The invention relates to the field of prestressed concrete humidity detection, in particular to a separate concrete humidity testing device and method. Background technique [0002] An important reason for the cracks on the concrete surface is the dry shrinkage stress or wet stress on the concrete surface. The humidity inside the concrete will cause the concrete to deform, and the relative humidity will increase, and the concrete will expand, and vice versa, it will shrink. There are two main situations in which shrinkage cracks appear in concrete structures: one is that the overall shrinkage of concrete causes penetrating cracks under the constraints of the external structure, which mainly occurs when the cross-sectional size of the component is small, and the dehydration and shrinkage of the surface layer plays a leading role; the other is that Under the effect of internal and external humidity gradient, the uncoordinated deformation caused by the d...

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Application Information

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IPC IPC(8): G01N33/38
Inventor 曹洪亮张峰刘佳琪王晗陆小蕊高华睿
Owner SHANDONG UNIV
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