If it's sand and rubber and you're not too far from me, I might be interested in some or all of it, depending on what type of rubber/sand and price. Can you PM me more details please? Thanks.
I looked into this a few yrs ago now, as some one was giving away his sand & rubber, the cost to move it and hire the lorries was just as much as it would be to buy the stuff from new also with sand/rubber you then need planning permission and a lot harder to hide !!!!!!