The recycling step can be categorized into a few steps.
To recycle the reinforcement steel from a demolished structure or an excavated site, before starting you have to ask the previous owners permission for reusing the scraps.
Step 1: collection.
The collection process for metals differs from other materials due to its increased worth. It is more likely to be recycled than to be sent to a landfill.
The collection of scrap metal can be from vehicles, demolished sites, railroad tracks, or junkyards.
Although the ones bought from said junkyards shall also be inspected for safety standards.
Step 2: inspection or sorting.
It includes inspecting which of the found scrap rebar is in a state to be recycled i.e. not broken and free from rust and which scrap is unusable and goes to the landfill.
Usually, large-sized magnets are used for this purpose as they can detect metals free from impurities.
Other than this method, metals can also be classified or sorted based on their color e.g. light silver means aluminum.
If a rebar is still intact with the concrete then the affected part can be removed with the help of a rebar cutter, affirming that the remaining part’s length is long enough to be used again.
Rebar with rusts should not be used since they go against safety standards and can cause accidents.
Step 3: processing.
For scrap rebars that are not in a state to be directly reused by simply straightening them, they are shredded.
This is done to make the melting process easier.
Step 4: melting.
The shredded scrap metals are taken to a large furnace and melted. Different types of metals are taken to different furnaces for melting.
Step 5: purification.
It is affirmed if the resulting metals are free from any impurities and are of good quality.
Step 6: solidifying.
The purified metals are cooled and solidified. The scrap metals are given the desired forms for which they’ll be used e.g. reinforcement steel, bars, and other shapes.
After this, they are transported to industries for different industrial uses like construction and manufacturing, etc.
This cycle of recycling metal is a repetitive process. After the transported metal fulfills its useful life, it is then recycled again and the same process is repeated.