Can epoxy coated rebar be put in the ground before poring concrete. is the ground generally still too corrosiv

Answer 1

If you are using it to hold up the rebar while you pour, it should be fine. Generally, rebar should never touch earth (permanently). Footer steel should never touch the ends of the ditches because it can rust completely out of the concrete (it should be sealed in the concrete). If you are just using it to tie the horizontal steel to while you pour, the epoxy will insulate it from the rest of the rebar. The epoxy coated one will rust away eventually, but the epoxy will prevent that rust from transferring to the other rebar. Non-coated rebar should never be used to hold up other rebar, although it's done everyday. It would probably take hundreds of years for it affect the integrity of the concrete.

Answer 2

Epoxy coated rebar can generally be placed on the groud prior to casting concrete. However, there are some general guidelines that should be followed when using the epoxy coated bar. Over long periods of time on the ground aggregate can chip away the coating which will facilitate oxidation and rust. Also UV rays from the sun can cause deterioration of the coating. I have seen this in pre-cast concrete batch plants that I audit. Epoxy coated bar can be stored on the ground for short periods of time, if they are going to be stored outdoors over long durations, they should be placed on dunnage.

When placing concrete, the epoxy coated reinforcing steel should be placed on plastic chairs or epoxy coated dowels. Placement on non-epoxy coated bar could lead to corrosion.

Generally, epoxy-coated reinforement is used in transportation systems such as roadways, bridges, and parking garages, or any application where water is present.

In short, to answer your question, it is fine to place your epoxy coated bar on the ground prior to placement of concrete, if you are in doubt, place the bar on 2x4's.

Hope this helps.

Answer 3

The epoxy coating on the rebar is used for salt water conditions...helps prevent the corrotion of the re-bar...actually the concrete itself is more corrosive then the dirt so you won't have any problem....

Answer 4

Yes. It takes a very long time for re-bar to disintegrate.

Answer 5

hyster500 nailed it. Listen to him - he has it right.