I have been helping a friend play Fallout 3 for the Playstation 3. It is a post apocalyptic game set in Washington DC, 200 years after a nuclear war.  Everything is destroyed buildings and huge slabs of cement and twisted rebar, junk is strewn all over what remains of the floors. I got inspired to put together an image based on the game play and I really need a floor and wall shader that looks like cracked, broken, pock-marked cement. My current floor cement shader is 'too pristine' for the environment I'm trying to simulate.  If there anyway to add strewn, yellowed papers to the floor without adding additional props, please help me. The picture is already prop heavy and my computer is choking.

Thanks to anybody who can give me a hand with this!

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8