difference between hard rock & soft rock
difference between hard rock & soft rock
(OP)
Hi
we are argumenting with the contractor about the soil, which he needs to excavat. He says this should be paid as hard rock but I think this is still soft rock.
how or where is the diference between this two? How can we classifie it on the site?
Regards
TomTOm
we are argumenting with the contractor about the soil, which he needs to excavat. He says this should be paid as hard rock but I think this is still soft rock.
how or where is the diference between this two? How can we classifie it on the site?
Regards
TomTOm





RE: difference between hard rock & soft rock
Dik
RE: difference between hard rock & soft rock
RE: difference between hard rock & soft rock
I have seen in the past a hard rock (alloable bearing capacity of 600kPa) and the rock was white in appearance and the contractor mentioned that it was very hard rock to try an drill through.
RE: difference between hard rock & soft rock
Is there not like a test with a pick or a pole which you hit into the ground?
The only part in the SABS which classifies it refers to heave machines and the afford to remove it. This does not help me since we don't have any of such machines on the site
Tom