Anyone have any experience with Shotcrete concrete slab repair from below? Our concrete is cinder concrete with corroded or totally failed reinforcement in it. The bay size is approximately 6 feet by 20 feet. There is at least one diagonal brace in each bay.
If the wire is corroded or totally gone, and there is no re-bar in the slab, how would you add structural integrity from below prior to installing Shotcrete?
How do you get the Shotcrete to bond to the old concrete (is it even necessary if you add rebar and/or wire mesh from below first?), do you use a bonding agent?
How much should it cost approximately for Shotcrete (I am in NYC but give me the price where you are and I can factor it up)?
How much to chip off the old spalled concrete, wire brush the steel beams and generally prepare the slab from below?
How much to add reinforcement from below?
Thanks!
If the wire is corroded or totally gone, and there is no re-bar in the slab, how would you add structural integrity from below prior to installing Shotcrete?
How do you get the Shotcrete to bond to the old concrete (is it even necessary if you add rebar and/or wire mesh from below first?), do you use a bonding agent?
How much should it cost approximately for Shotcrete (I am in NYC but give me the price where you are and I can factor it up)?
How much to chip off the old spalled concrete, wire brush the steel beams and generally prepare the slab from below?
How much to add reinforcement from below?
Thanks!