Asphalt sealers?

[Soundguy]

Your suposition is quite general. A 'fl' road can be quite a few things depending on what standards are used in the construction. I'd put a black base road pretty much anywhere in the country and expect it to last just fine. As i said in a previous post... it all depends on the specifics of the job.. not generalities.

You design and build roads for a living?

Soundguy

 

[JCB]

Soundguy,

You and dave are both right. It does depend on the project. Slag is an excellent road material when it is angular because it'll have good interlock. In areas without freeze-thaw you can get by with an open surface that allows water penetration. In northern areas, that open surface will allow freezing water to tear the pavement apart, and we use tighter mixes because of it.

If I was Kenny ( in MD) and was able to get an open graded material cheaply, I'd use it in an instant. If I was spending money, I'd want to be sure I was buying a longer term solution. At the end of a day though, it's only a driveway. If you're not getting stuck...it's doing it's job. That's from a guy who spends 365 days a year working on pavements, but still owns a 300' gravel driveway.

Joe

 

[Soundguy]

Regional difference do make alot of differences. At least in the counties I work in.. even our slag roads are heavilly sealed with bituminous coats then powdered with fines or sand.. then rolled. In most cases, you can't tell the slag road from a paved road except by looking at the shoulder edge. Part of this comes from the factt hat our hardstone suppliers inthe area are pretty much selling the same aggregrate chip size for slag, as they do for the asphaltic concrete mix... In the end.. no pre-cook, and much less fines, and thin lifts for the slag, vs asphalt.

Still.. as was mentioned.. it's all in the specific application, and specs involved.

Soundguy