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 > Black Ice on roads

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Steveque

Central California

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Posted: 12/11/07 03:06pm Link  |  Quote  |  Print  |  Notify Moderator

Perhaps the worse road condition in California is a light rain on asphalt roads. The oils and rubber get wet and becomes as slick as anything.


Steve Quesenberry
Central California

BobScheirer

Randolph, ME USA

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Posted: 12/11/07 05:25pm Link  |  Quote  |  Print  |  Notify Moderator

Grease!


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dfloria

P.G. BC, Canada

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Posted: 12/11/07 05:43pm Link  |  Quote  |  Print  |  Notify Moderator

"Black Ice" is actually clear. It is the black pavement that you can see through the ice. Hence the black.

59022

MT

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Posted: 12/11/07 06:17pm Link  |  Quote  |  Print  |  Notify Moderator

We call it slime, but you can call it slick. It's basically built up oil from leaking passing vehicles settles on the roadway. Then it rains and for the first hour or two it's a slimy mess, that takes extra time to wipe off the windshield and sides of your truck.

Black ice is ice, not oil soaked roads. I'd rather not drive on either.

chuckster11

Idaho

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Posted: 12/11/07 06:59pm Link  |  Quote  |  Print  |  Notify Moderator

Any invisiable condition on the roadway that causes the car to lose traction in the winter is what we call "black ice"! Visiable ice, smooth or rutted, on the roadway is called "Let's just stay home by the fire."

Ozimo

Resolute/Oz

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Posted: 12/12/07 06:45pm Link  |  Quote  |  Print  |  Notify Moderator

chuckster11 wrote:

Any invisiable condition on the roadway that causes the car to lose traction in the winter is what we call "black ice"!


So, if I break traction on an oily road, it's called black ice? I don't think so. Ice is ice - and if it's on the asphalt highway it's called "black ice". If it's on a concrete highway or my current gravel drive it's just called "ice". Here in Montana, as I've discovered recently they don't use rock salt, but a mixture of crushed cinders and potassium chloride, which doesn't damage the environment.


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SWMO

Southwest Missouri

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Posted: 12/12/07 08:24pm Link  |  Quote  |  Print  |  Notify Moderator

Quote:

"Black Ice" is actually clear. It is the black pavement that you can see through the ice. Hence the black.


Yup, and its scary stuff, unlike most ice, you get zero traction on it and lose all control. When I lived and worked in Eastern Oregon we ran studded tires because of it. Its impossible to tell it from wet pavement so there's no warning.


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dfloria

P.G. BC, Canada

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Posted: 12/13/07 09:55am Link  |  Quote  |  Print  |  Notify Moderator

I was caught once returning from a deer hunting trip. Travelling about 55mph on wet pavement for 150+ miles. First vehicle went by in the opposite direction going about 20 mph. Didn't think too much about it until the second when by at the same speed. Things that make you go hmmmmmmmm????? Took over 1/2 mile to slow down and keep the truck and trailer on the road rubber side down!

Another time on the way out to our deer hunt. I knew the black ice was coming somewhere but didn't know when. 3 1/2 hours into our 5 1/2 hour drive I found it while cresting a hill into a river valley. Managed to get down and back up the other side somehow. We drove for a total of 8 hours that night and we were still 1 hour normal drive from camp. I finally parked it in a turnout and slept in the trailer. NOT FUN!!

horton333

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Posted: 12/13/07 10:31am Link  |  Quote  |  Print  |  Notify Moderator

SWMO wrote:

Quote:

"Black Ice" is actually clear. It is the black pavement that you can see through the ice. Hence the black.


Yup, and its scary stuff, unlike most ice, you get zero traction on it and lose all control. When I lived and worked in Eastern Oregon we ran studded tires because of it. Its impossible to tell it from wet pavement so there's no warning.


To my understanding black ice describes a highly specific form of almost invisable ice. This form only occured in very cold weather, < -30 C and usually in sunny conditions. Even when walking on the road it is hard to tell from normal ashphalt, and it is almost as slippery as normal ice so it woul lead to some real suprised looks on people's faces as they staggered out of the ditch. It developed a mystic, since it really was hard to see.

We used this term when I lived in colder climates for this unusual type of ice, and was supprised when I moved to southern Ontario to hear the term used everytime there was ice any sort that people didn't bother to slow down for or to notice. Guess it feels better to know it was not just normal ice when explaining what happened at the repair shop?



Black Ice Defined

Note Wikipedia this does not fully agree with the use of the term as I understood it, but I notice it seems to mean different things to different people so ....

bigjimcruising

Orange County, CA

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Posted: 12/13/07 11:26am Link  |  Quote  |  Print  |  Notify Moderator

I call it a good reason to call in sick and stay home!


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