By increasing the amount of carbon, the possibility of changing the structure of the rebar during welding and heating increases, and finally it causes the resistance of the rebar to decrease
What does rebar fracture mean?
is the division of the integrated rebar into two smaller parts, which can have metallurgical or mechanical reasons. Rebars, which are steel sections, contain significant amounts of carbon elements in their chemical composition, which play an essential role in increasing their strength. But if the amount of carbon is higher than usual, it causes brittleness and facilitates the conditions for the creation and growth of cracks in the rebar.
What is the reason for breaking the rebar?
The most important reasons for rebar breaking in various applications can be as follows:
✔️ With the increase of carbon content, the possibility of changing the structure of the rebar during welding and heating increases and ultimately causes the resistance of the rebar to decrease. Rebars are divided into A1, A2 and A3 categories. In the meantime, A1 and A2 rebars have a suitable amount of carbon, which allows more flexibility for this category of rebars. As a result, when bending them, the possibility of breaking the rebar is minimized. The amount of rebar bending depends on the amount of bending strength and its bending angle, and it should not be bent too much because it will reduce the bending angle and break it. This bending angle depends on the diameter, grade and place of use.
✔️Also, the stresses caused by some mechanical or welding processes have caused the resistance of these sections to decrease and when in special applications placed, they will fracture at a stress level lower than the stress required for failure.
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