Extruded Bridge?

So i saw an interesting documentary on Discovery Science in the UK yesterday, couldn't see any mention of it here, or any trace on the interweb.

They had this guy that had invented a process to bond two incompatable polymers (i think!) to make a new material that was stronger than steel (apparently)... and they had built a small bridge from it, a foot bridge over a river.... pretty impressive!
But also, the process involved an extruder, they showed you a cross section of the handrail and you could see that extruded infill pattern..... pretty interesting, how would they do it on such a large scale, very small parts or big machines?

Has anyone seen this, it was called "Eco-Tech"?

I haven't seen the program, but is it possibly one of these?

[newportengineer.com]
[www.nae.edu]
[www.news.cornell.edu]
[www.greendiary.com]

LOL, need to practice my googling skills!

Yeah, the second one definatley sounds right, the first and third appear to use plastic mixed with fiberglass, this said specifically two polymers were all that was used, ones that normally refuse to bond, but a new technique had been used.

If it were something useable for reprapping, then it would be of great use,