RE/ CONCRETE FLOORS,
YOU WERE RIGHT ROB.
Got me confused there,the specs state that in poor ground sand/soft
soil/soft clay.The edges of the RAFT should exceed the middle
x3 so a 220mm or 9 inch wall the sides edges need to be 600 mm thick
to a width of 600mm in.
The reinforcement bars do go to the bottom in tension ie lintel,The
steel to the top for compression,
GOT ME GOING THERE ROB CONFUSING,
HODGES BOOK OF BRICKWORK gave me the answers.