On Mon, 28 May 2007 08:57:27 -0400, John Bachman
wrote:

On Mon, 28 May 2007 08:41:43 -0400, Cheryl Isaak
wrote:

Especially to keep them from rooting from seeds?

What do you mean by "gravel"? Anyone involved in the road building
trades knows that gravel is a mixture of rock, sand and clay. It
forms a stable base for the road and can even form a nice dirt
road/driveway itself.

Many people mistakenly use the term "gravel" when referring to crushed
stone. Do you mean crushed stone?

Uhhhh, who is mistaken here?

If so, please elaborate on your project. Is the purpose of the
crushed stone purely weed control? Is there a drainage issue that
demands crushed stone? More details please.

John


http://en.wikipedia.org/wiki/Gravel


Depends upon where you live and who is involved in the road building
trades and what kind of roads you are building, I guess, John.

My bother-in-law is a sales manager for Norris Aggregates. They sell
millions of tons of gravel or crushed stone for roads and concrete and
all sorts of construction projects.

My son owns a truck and hauls gravel, or crushed stone, as you call
it. He is currently involved in hauling 3 inch base rock for the
access raods to a wind farm being constructed in the area. This is
laid directly upon the subgrade.

After the 3 inch base is laid and compacted, they will overlay with
1 1/2 inch rock.

No sand, No clay. Just gravel, rock, crushed stone.... same stuff.

They then have a road.... capable of supporting the extremely heavy
loads, of tower, blade, turbine and control components that will be
transported over these roads.

No mix of sand gravel and clay.

Perhaps you were thinking of concrete? If so, it is a mixture of
cement, gravel (crushed stone) and water and whatever specialty
additives necessary for the project requirements?

Son also hauls sand to one of the local ready mix plants. He doesn't
haul if there has been rain enough to cause any mud on the access road
as any mud buildup on his truck frame that falls into the dump area
has the potential to ruin the mix.

Any clay in the mixture will ruin it and the load will be rejected.

Perhaps things are done differently in your area, I can't speak for
that, buth then again you cannot speak for all inclusively about

Once again, here is a basic primer on gravel:

http://en.wikipedia.org/wiki/Gravel

Should you desire more information, I am sure Bill (the Bro-in-Law)
will be happy to forward me what he knows.

I can also have my son request information from a classmate of his who
is now general manager for **** Construction, KC division, a family
held business that contracts all over the state of Missouri.

Perhaps you meant a sand-clay road.

http://209.85.165.104/search?q=cache...k &cd=1&gl=us


Ouch, be more careful, that's gotta hurt, John
Charlie