Testing method for thickness of steel structure fireproof coating brush
2022-09-12 09:35:00
It is understood that in the preliminary engineering construction, the measuring instrument for the thickness of steel structure fireproof coating is a thickness gauge. During testing, the probe of the thickness gauge is usually vertically pressed on the surface of the coated steel component, and the reading of the thickness gauge is recorded. The inspection quantity is selected according to 30% of the number of components, and generally not less than 3 pieces. Today, let's learn together how to choose the measuring point position of a thickness gauge.
1. Steel structural columns and beams, take a section every 1 meter along the length direction of the component, test the coating thickness on each surface of the component, and calculate the average value of all measurement points as the coating thickness of the component.
2. For truss structures and beams, take a cross-section every 1 meter along the length direction of the upper, lower chord, and web members, measure the coating thickness on each surface of the member, and calculate the average value of all measurement points as the coating thickness of the component.
3. Select 5 points per square range for measurement of the top plate and steel staircase, and calculate the average value of all measurement points as the coating thickness of the component.
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