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Powerfloating waffle slab

Powerfloating waffle slab

Powerfloating waffle slab

(OP)
Has anyone had any experience with powerfloating a waffle slab? the slab is 450mm thick and the topping above the voidformer is 125mm thick. Is 125mm not too thin to powerfloat? i'll appreciate your comments.

RE: Powerfloating waffle slab

What would make it too thin to powerfloat, JacksPanic? I can't think of a single reason why a five inch thick slab could not be powerfloated, but maybe you will convince me otherwise.

BA

RE: Powerfloating waffle slab

(OP)
I cannot convince you otherwise because I agree with you. The builder seems to doubt it though. He says the top will end up being "wavy" over the void formers and ribs.

RE: Powerfloating waffle slab

The only reason you could get a "wavy" surface is if the ribs are not adequately compacted, thus allowing for plastic settlement. Make sure the ribs are vibrated thoroughly, then the finishing should be routine.

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