Build a sand/soil sieve addon for a cement mixer

I've got over a ton of ballast I don't need, but in that mix is a load of sand that I DO need. I also have a cement mixer, wood, screws and an old washing machine drum. Project time... INDEX 0:10 The problem: I need to sieve some construction ballast 0:44 The solution (but they're too expensive) 1:04 The alternative (build my own) 1:40 Building the thing and attaching it to a cement mixer 5:39 Testing time