I
iDIY
Hi Guys,
I have dug a 1m deep, 26m long trench and had 300mm of concrete pored in the bottom. I have built up to just below 'ground level' with 300mm wide trench block. I will be laying another course of 100mm concrete blocks to form an inner and outer leaf to get to at least 150mm above ground level for DPC. At that point I will be pumping in concrete to form the slab on top of the sand and DPM of course.
As the DPC layer will be 150mm above the level of the slab, I can't use the inner leaf to get the concrete level and I can't put timbers either side to get it level. So what is the secret to getting it level?
I have dug a 1m deep, 26m long trench and had 300mm of concrete pored in the bottom. I have built up to just below 'ground level' with 300mm wide trench block. I will be laying another course of 100mm concrete blocks to form an inner and outer leaf to get to at least 150mm above ground level for DPC. At that point I will be pumping in concrete to form the slab on top of the sand and DPM of course.
As the DPC layer will be 150mm above the level of the slab, I can't use the inner leaf to get the concrete level and I can't put timbers either side to get it level. So what is the secret to getting it level?