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Concrete surface roughness testing method and tester

A concrete surface and surface roughness technology, which is applied in the direction of mechanical roughness/irregularity measurement, can solve the problems that the roughness of the concrete joint surface cannot be accurately evaluated, the difference in microscopic morphology is not considered, and it is difficult to meet the engineering requirements, and the detection results can be achieved. Believable, avoid bias, and apply to a wide range of occasions

Pending Publication Date: 2019-02-26
武宇生
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Problems solved by technology

The sand filling method needs to prepare standard sand, and there are many measurement steps, the remaining sand is not easy to remove, and it is only suitable for horizontal surfaces, so it is difficult to meet the actual needs of the project
There are also some detection methods that use tools such as dial gauges and sounding gauges to evaluate the surface roughness by measuring the depth of each measuring point on the concrete surface relative to the reference plane. These methods use many instrument accessories and low measurement efficiency. big error
In addition, the above-mentioned methods all use the macroscopic convex-concave depth of the surface as the only observation and evaluation index for detection, and do not consider the differences in microscopic morphology of different surfaces (even if the convex-concave depths are the same), so it is essentially impossible to accurately evaluate concrete. Roughness of joint surface

Method used

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  • Concrete surface roughness testing method and tester
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  • Concrete surface roughness testing method and tester

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Embodiment Construction

[0026] The surface roughness detection method and tester of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, in order to understand the structural composition and usage of the present invention more clearly, but it cannot be used to limit the scope of the present invention. protected range.

[0027] The first embodiment of the surface roughness detection method and tester of the present invention is as follows: Figure 1 to Figure 3 shown. The lower end of the body 1 is provided with a support 2, and the circular friction disc 3 and the nylon wire 4 distributed on the friction disc 3 in a circular shape form a friction assembly together, and the friction assembly is fixed by an upper adjustment nut 6 and a lower adjustment nut 7. The lower end of transmission shaft 5, transmission shaft 5 is connected with the motor that is located in body 1, and the upper end of body 1 is handle 15, and ha...

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Abstract

The invention discloses a surface roughness testing method and a tester. The testing method comprises the steps of placing a friction assembly on a tested concrete surface so that the friction assembly rotates or slides on the tested concrete surface, measuring physical quantities such as rotating speed, torque, speed and resistance of the friction assembly in movement, calculating the characteristic quantity of the surface roughness or estimating the surface roughness of the tested concrete according to the measured physical quantities and a corresponding calculating formula. The tester for realizing the method comprises a body, a supporting seat and the friction assembly, wherein the friction area of the friction assembly is annular or rectangular. The testing method and the tester of the invention are used for testing and evaluating the concrete surface roughness and have advantages of clear principle, trustable result, wide application range and convenient operation.

Description

technical field [0001] The invention belongs to a method for detecting the surface roughness of concrete, in particular to a method for detecting the surface roughness of assembled concrete components. [0002] The invention also relates to a concrete surface roughness tester, which includes a body, a support, and a friction assembly, and the friction area of ​​the friction assembly is circular or rectangular. Background technique [0003] For prefabricated concrete components such as laminated slabs and composite beams, the roughness of the joint surface is an important factor affecting the quality of the secondary pouring. This type of joint surface is generally treated by methods such as brushing, brushing, chemical treatment or chiseling, and correspondingly, the roughness of the treated joint surface needs to be tested and evaluated. The existing surface roughness detection method is mainly the sand pouring method, that is, standard sand is spread on the surface of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/28
CPCG01B5/28
Inventor 武海蔚寇逸恬武宇生王薇恩武宇清王刚王昌明
Owner 武宇生
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