Can anyone tell me if there is definition for structural screed
A structural screed is a layer of concrete that is placed as the top or outer layer of preformed concrete flooring. To be considered to be a structural screed instead of a non-structural screed this layer must included reinforcing fibers or components like a steel mesh.
Niel
Theres quote a tech data sheet available on it here too
http://www.hanlonconcrete.ie/downloads/UltrafloDataSheet.pdf
Cheers
Niel’s answer is good. But most of the self leveling floor screed would be non structural like the ones listed above and also http://www.screed.ie