Ideas for pulverizing hard clay dirt Permaculture and homesteading ...
Put the coarse material back in with the next batch. 1/4" construction fabric would be durable enough to do the job on the scale you are involved with. WET/DRY. Sloppy idea, and lots of hard work. Water down an area where the clay is coming from or dumped. Work the clay into a slurry with the tiller.