ford focus abs?

Just a general question - I have a 52 plate focus & on normal braking I dont seem to have that extra edge of almost putting you through the windscreen under heavy braking. So I had new brake pads & disc's and I have still been unable to get the ABS to ever kick in. Is this normal for this car? My brakes work well, but it seems strange that even with trying to get the ABS to come on, it doesnt