We have a long Tarmac drive that meets the cobbled main road by the side of the house. We are going to have sliding 3 ft high gate across the entrance but after digging out the plans for the house it would seem that every water/gas/electricity pipe in the world runs under our drive.
The Tarmac is in good condition and I was considering building 2 x 4 ft gate posts out of bricks. They won't be load bearing as the gate will slide sideways.
My questions are can i make a concrete base directly on top of the Tarmac and then build the brick post up directly from this. I know the Tarmac was well laid on a good compact base so it's very stable and over 10 years of a 2 tonne pickup truck driving over it hasn't caused any damage. The post would literally be a brick and a half wide so will it be stable?
Will I have to cut in to the Tarmac to make my concrete base first or can I just do it on top? I don't want to lay it on top if someone could just push the post over and want it to be secure to the ground without digging anything up and risk hitting a pipe.
The Tarmac is in good condition and I was considering building 2 x 4 ft gate posts out of bricks. They won't be load bearing as the gate will slide sideways.
My questions are can i make a concrete base directly on top of the Tarmac and then build the brick post up directly from this. I know the Tarmac was well laid on a good compact base so it's very stable and over 10 years of a 2 tonne pickup truck driving over it hasn't caused any damage. The post would literally be a brick and a half wide so will it be stable?
Will I have to cut in to the Tarmac to make my concrete base first or can I just do it on top? I don't want to lay it on top if someone could just push the post over and want it to be secure to the ground without digging anything up and risk hitting a pipe.