http://anzsoil.org/def/au/asls/substrate/material-strength-M
| identifier | http://anzsoil.org/def/au/asls/substrate/material-strength-M | ||||||
|---|---|---|---|---|---|---|---|
| notation | M | ||||||
| definition | 50-100 MPa based on field estimate of strength class after striking or cutting the rock material - Knife:Nil or slight mark, Pick:indents shallowly, Hammer (single blow):Breaks readily into a few large and some small fragments | ||||||
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