will lime corrode aluminum cans?

I've got a funky cob wall going up and it is supplemented by aluminum cans here and there to aid in insulation. They poke out a bit in some spots on the exterior and I am concerned about the reaction between the whitewash and the exposed aluminum cans... I am mostly concerned about any health hazards resulting from lime coming in contact with aluminum. I could go over the exterior with more cob to cover them up but I guess I am asking if a lime whitewash will be detrimental to a cob wall containing aluminum cans... Thanks!