When reinforcing concrete, is it necessary for rebar to be tied together?

Answer: Always
Explanation: we always do

Answer: In most cases
Explanation: In certain situations, for the purposes of load transfer, reentrant corner reinforcement, and other isolated situations it is not necessary to tie rebar, but in a mat situation it is necessary in order to achieve correct spacing of reinforcing members.

Answer: In most cases
Explanation: 50-80% works good

Answer: Always
Explanation: Keep your re bar or mesh together which will add strength throughout the slab.

Answer: Always
Explanation: always to hold it together

Answer: In most cases
Explanation: Rebar should aways be tied together unless there is an expansion joint in the pour.

Answer: Always
Explanation: To ensure non shifting or any movement

Answer: In most cases
Explanation: Depending on the job

Answer: In some cases
Explanation: As long as the rebar is set in the right height but if not tied there a chance of movement

Answer: Always
Explanation: Rebars must be tied together for the bars to remain in a desired position during pouring. Tying is also a means of keeping laps or splices in place. Laps allow bond stress to transfer the load from one bar, first into the concrete and then into the second bar.