On a related note, what happened to concrete roads? 
Why are roads all asphalt now?  Isn't concrete more
environmentally friendly?



--- Pete Theisen <[EMAIL PROTECTED]> wrote:

> On Wednesday 16 April 2008 00:34, Kristyne McDaniel
> wrote:
> 
> > > There is construction going on ALL the time.
> They finish one
> > > section, the section they did a couple of years
> ago has
> > > crumbled because the binder has leached out.
> >
> > How do you know it is 2 years? How do you know it
> is the binder? How do you
> > know it is wetness causing the problem? Is it
> perhaps salt spray? Is it the
> > natural order of things?
> 
> Hi Kristyne!
> 
> I discussed it with one of the engineers involved
> with the project. The 
> decisions were political, rather than technical,
> however. It wouldn't suprise 
> me if one of the fat cats has a no-good
> brother-in-law who sells the water 
> based stuff. Since that discussion (years ago) I
> have kept an eye on it, and 
> sure enough . . .
> 
> It is similar to the water-based paint idea, the oil
> based paint is more 
> durable and more water resistant.
> -- 
> Regards,
> 
> Pete
> http://www.pete-theisen.com/
> 
> 
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