2006-11-07 00:06:13 · 12 answers · asked by havfunky 2 in Cars & Transportation ➔ Other - Cars & Transportation
Please dont just tell me my question is wrong- because its not- probably 99% of all roads are grey (any shade from light to dark). Why dont they make them green, so as they're not so ugly?
2006-11-07 20:06:57 · update #1
also, if you say a road is pink- i expect it to be pink, not grey with a negligable pink tinge to it. Dirthy roads are excluded from this question- im talking about proper roads that are made with asphalt, concrete, etc. not dust tracks! (there are none of these in th UK.
2006-11-07 20:09:32 · update #2
They are not. Some are whitish--like off-white, like macadem. Some are grey like gravel roads. Some are brown, like dirt roads. Some are black like tarmc or asphalt. Finally, red, like cobblestones. Great question, though!
2006-11-07 00:09:33 · answer #1 · answered by Silazius 4 · 1⤊ 0⤋
Asphalt is black when it's laid do to the oil that it's made with. After as little as 30 days it starts to "oxidize". This is when the oils are being dried out of it. This is why you would have your driveway or a business' parking lot sealcoated. Sealcoating puts those oils back in the asphalt, and makes it black. As for making asphalt green or any other color it is possible, but it's a colored sealcoat product. Much like a tennis or basketball court.
2006-11-09 04:31:09 · answer #2 · answered by Fantom2993 2 · 0⤊ 0⤋
As a matter of fact not all roads are grey! I know of a stretch of road in northern Calif. - that is red, -- because it is made with red volcanic stone (degraded obsidion) since most of the area is covered with it, it is the easiest "stone" available for use. Locally here where I live in Texas there are a lot of red road stretches also, since we have a lot of red garnite in our area (just the patches are red) on state built roads! Also I have seen "white" roads - which had a lot of quartz stone in them.
The general color of the stone becomes visible as the "tar" used in the "macadam" road mix wears off the surface of the stones in the mix , --- generally the newer the road is,- the blacker the general surface color is! Tar is a whole lot softer than stone, so it wears off! Incidentally "new" road is a whole lot slicker than "old road", - because tar is slicker with water on it than stone is! So the stones coming through is a traction provider. Also some "blacktop" wears tires faster, and some even makes the vehicle seem to "labor" more to maiantain speed. "It's all in the stone"!
2006-11-07 08:25:30 · answer #3 · answered by guess78624 6 · 0⤊ 0⤋
Along I-68 (East) once you go from West Virginia to Maryland, the road turns pinkish. Its very noticable as you cross the state line.
In this picture, you can see the pinkish hue to it:
http://upload.wikimedia.org/wikipedia/en/1/18/Interstate68_01.jpg
2006-11-07 08:15:46 · answer #4 · answered by wvucountryroads 5 · 0⤊ 0⤋
Concrete is grey from the start. Asphalt is black at first, but the sun and weather 'bleaches' it over time.
2006-11-07 08:09:29 · answer #5 · answered by Matt 2 · 0⤊ 1⤋
They aren't. Most asphalt roads are black. Concrete roads are gray. Dirt roads are brown. Brick roads are red (unless you are following the yellow brick road). Stone & oil roads are blackish gray.
2006-11-07 08:09:04 · answer #6 · answered by kja63 7 · 1⤊ 1⤋
Listen to Matt.
2006-11-08 07:40:29 · answer #7 · answered by Anonymous · 0⤊ 0⤋
to blend in
we have some pinky ones and jet black too, in scotland though
2006-11-07 08:08:35 · answer #8 · answered by q6656303 6 · 1⤊ 0⤋
Because nature did not see fit to let us have rainbow roads.....it's a drag.......:(
2006-11-07 08:14:49 · answer #9 · answered by Thankyou4givengmeaheadache 5 · 0⤊ 1⤋
because nothing else around you is so why not use grey
2006-11-07 08:07:43 · answer #10 · answered by poemwriter09 2 · 0⤊ 1⤋