|
For the builder types here :
Every bit of concrete on my property is cracked (most of it is over 30 years old - driveways, footpaths, a couple of slabs (not sure what the prior owner used them for) , and my more recent 6x6m garage slab has also developed a fine crack.
I know much of Newcastle and Lake Macquarie is a mine subsidence area , I also have clay under the soil (which is quite dry now and have been for a few years). There have been road collapses in nearby streets (most recent was about 20 years in Coral Cresent when a big hole opened up in the road).
So how do I tell if the cracking is mine subsidence , or simply due to actve clay ?
This will determine if I go for a slab or an off ground platform for my ROR shed .
|