This weekend I'll be laying a concrete shed base. I've prepared the shuttering but because the land is slopping, two sides of the shuttering are 100mm deep whareas the other two sides are anything up to 200mm deep. Will I be ok to fill the whole area with concrete or is it essential to first fill the deeper areas with hardcore. The shed is the metal variety with no base. Thanks in advance.
Is Hardcore essential??
- Thread starter scadding
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holmslaw
You must level the base, so you need to dig out the 100mm end so you get a uniform 200mm. It is essential to use well rammed hardcore this will give a uniform hard surface for the concrete.
Given that the top of the shuttering is perfectly level, what would the consequence be of me using only using concrete. It would naturally level the area but the concrete would be 100mm thick at one end and 200mm at the other. The only item being stored is a sit on mower. Apologies if this is a dumb question. Thanks
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holmslaw
So you end up with a wedge of concrete, twice as heavy at one end as the other, sitting on an unlevel base. It will tend to creep and bury its self unevenly into the soil, and all your hard work will be wasted.
Get digging.
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