The surface gloss of construction mortar has a very important influence on the appearance quality image of the building. This article mainly introduces the application of gloss meter in the measurement of the surface gloss of construction mortar. Construction mortar is a material prepared from a variety of materials in a certain proportion. It is often used in construction engineering. In order to control the appearance and gloss quality of construction mortar, a gloss meter can be used to measure it.
First of all, let's understand the mortar. What are the requirements for the gloss of the mortar?
Mortar is mainly used in masonry, plastering, repair and decoration works. In structural engineering, single bricks, blocks and stones need to be bonded into masonry with mortar, and mortar is also used for joints of brick walls and joints of large wall panels. In decoration engineering, the walls, floors, and cylinders need to be plastered with mortar to protect the structure and decorate. Mortar is also used for veneer materials such as marble, terrazzo, and facing bricks, which is a large-scale construction project. , A wide range of building materials.
When using mortar as a decorative material, in order to maintain its color effect, the surface gloss of the mortar must meet certain requirements. Mortar surface gloss refers to the strength of the surface of the object to reflect light. It is often compared with a standard plate of known gloss. The larger the reading, the stronger the ability of the material to reflect light. Observing different gloss mortars at the same angle, we can find that the surface of the mortar with high gloss is bright, while the surface of mortar with low gloss is dull. In order to meet the decoration needs of different generals, a gloss meter can be used for control.
So how does the gloss meter measure the gloss of mortar in general? How does it work?
For the measurement of mortar gloss, photoelectric gloss meter is usually used for measurement. The principle is: emit a beam of incident light at a certain angle to the surface of the sample that can form specular reflection, and measure the percentage of the luminous flux of the reflected light on the sample surface to the luminous flux of the reflected light at the same angle on the standard plate. Therefore, in some descriptions of gloss, the unit of gloss is expressed as a percentage.
The usage requirements of different gloss meters may be different, so the operating instructions of the gloss meter used should be followed to select the irradiation angle of the instrument. Generally, before the test, the instrument must be calibrated professionally, and then the gloss value of the sample surface is measured. Usually, the displayed value of the instrument is the surface gloss value of the sample at the measurement point, which can be taken as the sum of all the measured values on the same sample. The average value is used as the detection value of the glossiness of the sample.
