In article
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JIMMIE wrote:

My friend is building some new concrete steps to his back porch. He
has some old chevy blocks , brake drums and general automotive iron he
wants to get rid of . If these items are clean of fluids is there any
reason we couldnt use them as fill in the steps.

Jimmie

After reading 26 other replies, concerning the alleged value* of scrap
metal and the problems of rusting rebar, I'd say the best thing to do
would be to fashion the auto parts into steps by welding them together.
Skip the concrete altogether.

*(last i checked, scrap steel isn't worth the gas to drive it to the
recycling center.)