Garage Block and Beam Floor

[elv]

The Architect that is drawing thew plans up for my extension and garage has specified a block and beam floor with 3" of screed on top, does this sound strong enough?
The reason he has'nt put a conventional floor is that there will bee approx 3' of hardcore plus needed to get it to floor level.

Has anyone heard of this method for garage floors?

Cheers.

 

[k2kris]

The strength of the floor is gained via the beam & blocks rather than the screed. However 80mm (3") does seem quite slim, although quite normal if used internally on a domestic floor using sand & cement screed.

I would probably specifiy somewhere in the region of 100mm solid concrete with a rough finish to provide a harder wearing course that wont scuff or chip as easily when items are dropped as they often are ina garage situation

 

[elv]

Iv'e since done a bit of research, and the use of block and beam floors seems to be quite common,even the litrature from the suppliers lists it as a common use, hoverer they do specify that you use the denser blocks as standars, also the screed will apparently be only 2"