On Wed, 8 Apr 2009 11:45:19 -0700 (PDT), fftt
wrote:

On Apr 8, 7:47Â*am, N8N wrote:
On Apr 7, 11:49Â*pm, "John Gilmer" wrote:

I just don't understand why folks are in such a rush to pave the driveway.

Gravel works just fine, thank you, and you don't have much runoff as rain
usually just soaks in.

Ever mow the grass in the spring after having shoveled snow off a
gravel drive all winter?

As for the runoff, there apparently is "pervious concrete" available
which allows rainwater to enter the ground *through* the concrete; I
find that intriguing but have yet to actually see any IRL or speak
with anyone who has such a driveway installed, so I can't say whether
that has any disadvantages relative to regular concrete or not.

nate

http://www.concretethinker.com/Papers.aspx?DocId=10

an interesting concept.......like a concrete sponge, not a 100%
dense.

I assume it must have to be installed thicker than 100% dense concrete
to have the same strength.

cheers
Bob


There are "driveway blocks" that are 8" thick "honeycombs" that you
can actually fill with topsoil and grow GRASS on. These drain very
well if filled with crushed limestone or sharp sand. Drain like
gravel, wear and clear like concrete. Weeds grow through like cheap
asphalt.