These slimming steel bars are not safe, but the store told reporters that these slimming steel bars are hidden rules used in the project, and the steel bars entering the construction site are basically calculated according to the length, so it doesn't matter even if the steel bars are thinned at this time, you can get high profits from them, and such hidden rules in the industry seem to have been accepted by most people.
In the face of reporters' questions, many bosses carefully answered what to do with these steel bars to be sent for quality inspection. The shopkeeper said that the thinned steel bar is definitely unqualified, but if water is poured into the steel bar, the steel bar will thicken because of rust at this time, and the inspectors can't see that the steel bar is thinned. However, if it is sent to the quality inspection department for inspection, the boss will provide a batch of very good quality steel bars for inspection, but the actual steel bars sent are all slimming steel bars.
However, it is clearly stipulated in China that the elongation of steel bars shall not exceed 4%. The behavior of shopkeepers has caused serious crimes, and there is no way to guarantee the quality and safety of buildings after slimming steel bars like this. The tensile force of the tensile reinforcement is destroyed, and some minor earthquakes will make the center of gravity of the building unstable, which is very terrible for the residents who buy the building. As for the industry chaos like this, I think our country should rectify it as soon as possible to prevent these slimming steel bars from flowing into the market too much, resulting in very poor project quality.