Concrete surface roughness measuring device and using method thereof

Abstract

The invention discloses a concrete surface roughness measuring device and a using method thereof. The device comprises a sleeve, a piston located in the sleeve, a piston rod connected to one side of the piston, a pressing handle connected with the other side of the piston rod, a height adjusting support located on the outer wall of the sleeve, ultra-light clay, a pressing cake detecting device, and a data analyzer, wherein the sleeve is open at one end; a limiting disk for limiting the pressing amount of the pressing handle is arranged at the other end of the sleeve; a baseline positioning line for indicating that the bottom of the piston is pressed to a lowest position is arranged on the outer wall of the open end of the sleeve; a plurality of measuring cake positioning protrusions are arranged on the bottom surface of the piston; and the pressing cake detecting device is used for detecting a concave-convex value of the ultra-light clay in a measuring area range on the surface of a pressing cake pressed and formed on the surface of concrete. The device has the characteristics of being convenient to operate and high in measurement precision.

Description

technical field [0001] The invention relates to a concrete surface roughness measuring device and a using method thereof, belonging to the technical field of concrete engineering measurement. Background technique [0002] Concrete surface roughness is an important factor affecting the performance of the bonding surface, which includes the microcosmic mechanism and basic information of the bonding surface. Appropriate roughness can effectively improve the bonding quality of concrete. If the roughness is too small, the effect is not significant, and if the roughness is too large, the expected bonding effect cannot be achieved. Therefore, the quantitative description of roughness is of great significance to the problem of concrete bonding no matter in experimental research or practical engineering. [0003] Problems remain with existing methods of measuring concrete surface roughness. The most widely used method is the sand filling method, but this method is difficult to repe...

AI Technical Summary

Problems solved by technology

The most widely used method is the sand filling method, but this method is difficult to repeat the test and is limited to the measurement of the horizontal plane. Although it provides the average depth value of the surface macrostructure, it cannot reflect its microscopic characteristics.

Coarse aggregate exposure ratio method is a purely qualitative evaluation without quantitative analysis, and the result is subjective and affected by the operation of technicians

With the stylus average depth method, it is difficult to select the size and hardness of the probe, and the moving speed of the probe cannot be controlled. It is necessary to measure multiple lines to obtain the characteristics of the entire surface. However, it is difficult to measure especially irregular surfaces such as curved or slopes. And this method relies on information collection technology

There are also some methods such as microscope method, ultrasonic method, etc. Although the precision is high, the cost of equipment procurement and maintenance is high.

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