Buyan screed? 1

[Roadbridge]

The contract I'm working on as an RE has a bridge with a cast insitu arch proflie as its centre piece.

The main contractor has shied away from it and is now going to sub contract it out to a specialized contractor, who intend to pour the arch using a buyan sreed.

I've never heard of this form of screed before and was wondering what is it and how those it work.

 

[techmaximus]

It's a device that uses friction to cut concrete to grade rather than vibration. It's used on slopes where you don't want to vibrate your concrete to the bottom of the slope.

http://www.bunyanusa.com/

Techmaximus

 

[Roadbridge]

Just an up date on the The Buyan Screed question.
Sub-contractor showed up with screed took one look at the arch shutter turned around and said the angle was to steep to use the screed, poured arch the fashioned way "The Hard Way".