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    bballma2's Avatar
    bballma2 Posts: 1, Reputation: 1
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    #1

    Jun 17, 2010, 05:18 AM
    High steel rust lines in new cement driveway
    I had a concrete driveway installed about 2 years ago and now see straight rust lines running parallel to the joints. What could this be and what can be done?
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
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    #2

    Jun 17, 2010, 05:27 AM

    Sounds to me like the welded wire mesh that they put in to reinforce the concrete wasn't properly anchored and worded its way up near the surface during the vibrating, screeding and floating before it set up.
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