On 22/10/2013 IdratherbeclimbingM9 wrote:
>I have seen exfoliated granite after bushfires, where flakes etc expand
>in the heat and crack off.
Dunno about sandstone; certainly granite in Australia is mostly eroded by bushfire, not the ice expansion which breaks rock in Europe etc. That is very evident from the 2003 fires in Canberra.
The effect on bolts is untested as far as I know. |