Copper pipes in concrete floors?

Matthew · 2006-02-15T11:41:59+00:00

Hi All,We moved into a 70's house last year.The ground floor is solid concrete with a bitumenlayer and a top surface of wooden parquet.When we moved into the house we had an issuewith one of the underfloor pipes leaking.I dug up the concrete floor, replaced the weeping jointand (foolishly) re-concreted back over the new joint.We have noticed recently that the adjacent wall wasstarting to look damp. I dug up the flooragain and found another area of copper pipe thatappeared to be leaking.How common is it to have 30 year old pipes leakinside concrete?If the situation becomes worse I may dispense withthe underfloor pipes altogether and drop down in roomcorners from above.Has anybody else any experience with similar situations.Is it comon for copper to be corroded by concrete?Thanks,Matthew