deep fill for driveway ramp

[randomq]

Is there any way to get big pieces of concrete rubble?  

I am thinking that the big chunks that come from tearing out driveways or other big concrete removals would help with preliminary bulk fill and should be free.  

Actually, I wonder if asphalt chunks  would work?

Even if you find free material, you'll need many dump-trucks worth.  A pickup truck can carry about a tenth as much as a dump truck. So you'll still be paying for someone's time and equipment to load it and transport it, or breaking your own back and truck, unless you literally find a giant demolition job looking to unload their materials. Hopefully not Uncle Billy's!