It's a rite of passage as a Game Artist to make piles of Debris. :) It all sits on one texture sheet. Modeled in Max, touched up in ZBrush, baked and textured in Substance Painter. Rendered in Marmoset 3.
If you want to use it in your next game get it @
Turbosquid: https://www.turbosquid.com/3d-models/real-time-ready-debris-3d-model-1170375?referral=MeshMagnet
or
CGTrader: https://www.cgtrader.com/3d-models/industrial/other/debris-groundfill-junk-trash-kit-game-ready

You can pick up this kit @
Turbosquid: https://www.turbosquid.com/3d-models/real-time-ready-debris-3d-model-1170375?referral=MeshMagnet
or
CGTrader: https://www.cgtrader.com/3d-models/industrial/other/debris-groundfill-junk-trash-kit-game-ready