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I need to lay a concrete base for an Aga range which weighs approximately 408kg. What mix of ingredients would be required eg. the ratio of cement, sand etc ?, and how deep ?.
A ground floor domestic kitchen. The concrete floor is around 3 inches thick, below this there seems to be a couple of inches of polystyrene and then some reasonably solid hardcore.
it sounds to me as though you have a regular insulated floor slab.
this ought to be minimum 100mm (4 inches) thick.
this may seem stupid , but how do you know its only 3 inches thick.
have you excavated the area upon which the aga is sitting?
I had to dig into it a few days ago on another project to do with plumbing, but since you have asked I have now measured the depth and the concrete is is 4 inches deep.The area where the Aga will sit already had a base for an Aga but the previous owners of the property had the base at 6 inches which is to high. I have had to kango the based down to floor level and now need to relay the base, its just the strength of concrete that concerns me.
a 100mm cured concrete slab, intact, would easily support the weight of an aga.
who has told you to build a separate base?
does the aga need to sit on an elevated base?
Yes the Aga needs to go on a base in order to bring it up to worktop height. Its just the mix of the concrete I am not sure of. I am assuming the concrete would have to be a strong mix.
six parts ballast (sand and gravel mixed) to one part cement, mixed together with water.
allow it to cure properly. over time it will be as hard as bell metal
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