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Spontaneous Potholes
martyn_16v - 15/1/07 at 08:42 PM

Seeing as we appear to be collectively omniscient (dat means we know everyting coz we is clever) can someone please explain to me how this could have appeared outside my garage this morning, because it wasn't there two days ago...



I'd noticed before that potholes do seem to just suddenly materialise on busy roads, and i'd assumed that it went something along the lines of once the surface is broken it's very much weaker than before and traffic over it will rapidly expand a small crack into a big hole. But this is outside my garage, behind a block of houses. I can count how many times a car will go over that spot in a day without taking my socks off, so how has it appeared and grown in such a short space of time?

EDIT: It was about a foot across when I took the picture, I wouldn't be suprised to find it's grown to a couple of metres by tomorrow, in a week it'll either be covering all of Surrey or so deep Tibetans will be popping up out of it to say Hi...

[Edited on 15/1/07 by martyn_16v]


scottc - 15/1/07 at 08:45 PM

really big ants


coozer - 15/1/07 at 08:47 PM

Water under the top then frost. The frost makes it break out suddenly.


Fozzie - 15/1/07 at 08:49 PM

Hmmm its happening around these parts with alarming regularity Martyn.

I would hazzard a guess, that at some point, oil or indeed fuel has seeped into the tarmac at that point, and therefore degraded the area of said spillage......

Fozzie


martyn_16v - 15/1/07 at 09:15 PM

quote:
Originally posted by Fozzie
I would hazzard a guess, that at some point, oil or indeed fuel has seeped into the tarmac at that point, and therefore degraded the area of said spillage......


*cough* wasn't me *cough*

OK, so I can undertand that a frost cycle could have cracked it, or some form of chemical degradation may have weakened it, but i'd expect to see a couple of biggish slabs break from the surface first, not the nearly-gravel it's turned into already


JoelP - 15/1/07 at 09:19 PM

my drive did that, i suspect i spilled acid on it that dissolved the stuff around the lumps.


Fozzie - 15/1/07 at 09:24 PM

Yup Martyn, oil/fuel/chemicals (some) do just that! Can disintergrate tarmac to dust!......almost

Fozzie


martyn_16v - 15/1/07 at 09:26 PM

Hmmm. I haven't spilled anything there for a while now, maybe some other bugger has...


Fozzie - 15/1/07 at 09:29 PM

Maybe its been slowly degrading from the underneath for a while?

Fozzie


martyn_16v - 15/1/07 at 10:46 PM

and then suddenly exploding into a hundred pieces?


Fozzie - 15/1/07 at 10:49 PM


maybe!

Fozzie


martyn_16v - 15/1/07 at 11:10 PM

stranger things have happened I suppose


Ah, it'll t-cut out anyway


Middy Tim - 15/1/07 at 11:35 PM

Spontaneous potholes are more of an accepted way of life than an anomaly here in Michigan. We have two seasons here, winter, and road construction. I always knew the two were somehow related.


Fozzie - 15/1/07 at 11:48 PM

quote:
Originally posted by martyn_16v
Ah, it'll t-cut out anyway


ROFL

Nice one!

Fozzie


Syd Bridge - 16/1/07 at 09:55 AM

quote:
Originally posted by Middy Tim
Spontaneous potholes are more of an accepted way of life than an anomaly here in Michigan. We have two seasons here, winter, and road construction. I always knew the two were somehow related.


Must be twinned with the Isle of Wight!

Cheers,
Syd.