Today, I will give you a knowledge of steel, that is, how to test hot-rolled ribbed steel bar. This article is mainly divided into five points, do not know to take a small book to write down.
Steel bar inspection
When inspecting reinforcing bars, the first thing to say is how to inspect the inner diameter of reinforcing bars. The method is to measure the inner diameter of reinforcing bars with vernier calipers and to measure the inner diameter of ribbed bars accurately to 0.1 mm.
For the test of cross rib height, the method is: using vernier caliper to measure the height of cross rib of ribbed steel bar, using the method of measuring the average height of the center of cross rib on both sides of the same section, which should be accurate to 0.1 mm.
For the detection of the weight deviation of reinforcing steel bar, the method is as follows: when measuring the weight deviation of reinforcing steel bar with electronic scale (0-6kg), the test should be intercepted from different reinforcing steel bars, with a number of no less than 5 bars. The length of each bar should be no less than 500 mm, and the length should be measured one by one, and the total weight of the sample should be measured accurately to no more than 1% of the total weight.
For the surface marking of steel bar, check and register on site.
The physical and chemical properties of steel bars need to be sampled for inspection.
This is the introduction of the small method of steel bar inspection. Tianxiangcheng will do his best to bring you more knowledge about steel.