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Pour concrete on top of slabs

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  • 08-06-2022 3:47pm
    #1
    Dazzler13
    Registered Users Posts: 13 ✭


    Hi all. I’ve old paving slabs down with years under the washing line. They’re well settled and no movement in them. I want to pour a concrete slab over them. Is this ok or any tips on what best to do I have the area boarded off for the concrete so ready to go.

    Thanks



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    #2
    Le shovelle
    Registered Users Posts: 75 ✭✭Le shovelle


    Yeah, but put down some 1000 gauge polythene on top of the slabs before you pour.

    It will allow the slabs to move separately from the concrete and help to prevent cracks.



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    #3
    policarp
    Registered Users Posts: 3,661 ✭✭✭policarp


    What area are you talking about?



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    #4
    monseiur
    Registered Users Posts: 1,227 ✭✭✭monseiur


    Depending of length, width and depth of slab, for reinforcement get a few lenghts of 15mm re bar, cut one bar in lengths 3'' shorter than width of slab, space at 600mm and tie to the bars running the length of salb. The reinforcement will look like a ladder when tied. Make sure that there's a minimium of 2'' of concrete under reinforcement.



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