Quote:
Originally Posted by appiice
Hello Rene
Bit late to the party but here is my 2 cents worth, I think Glen was right about using what you have, sandstone has a strength of around 77Mpa, concrete on the other hand in a house slab will be about 30, higher in other applications, but 77 would be rare.
Sandstone would be easy enough to drill into with a decent drill - not a consumer " hammer " drill look for a SDS drill, it will be like a hot knife through butter, construction epoxy ( https://ramset.com.au/Product/Detail/4/ChemSet-101-Plus - it is available in regular calking gun size ) and your pier won't be going anywhere.
If you move cut off the bolts at ground level and you won't have a large chunk of concrete in the ground.
Hope this helps
Ed |
That's great advice. Thanks for that. I'm at the point where I'm ramming some spikes into different locations to figure out how deep my sandstone/bush rock is. Once I decide where to put the pier I'll start excavating.
Wish me luck!
Rene