Im starting a new project and would really appreciate some advice and how-to's...
I've got some cast concrete posts, 9ft in length. I want to make some brick pillars, 6ft high but have the concrete posts in the center for support (instead of steel support rods/rebars.
Ground is soft clay. Ive read that i need to have 1/3 of the posts in the ground and the the width of the hole should be 2x the over width of the column - are these guidelines accurate? Finally, should the bottom of the hole be flat or more v-shaped & how would i support the post at the bottom - broken bricks or concrete base?
if your going to use these posts, then you need to dig a square hole at least 400mm wide to allow for the brickwork to sit on, I would brace the posts with timber to hold them straight the concrete can be as thick as you want, so long as its over a minimum of 150mm thick
Thanks Welsh Brickie....i read that the foundation should be approx 1/3 of the post length...i have 8ft posts, so would i have to dig down about 2.5ft?? I agree with the 400mm width for the bricks to sit on, seems enough i think. Would i need any sort of footing at the base of the hole like broken bricks or a slab?? cheers
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