Served half my time with pile of sharp sand, bags of cement, mixing board, barrel of water and a shovel for Toffolo Jackson. Don't know how many tons per day me and another apprentice mixed and carried. But tradesmen were scary guys back in that days and if they said 24 shovels to 1 bag cement guess what we mixed? Stuck with me all my life and never mess with it and never let me down 🙂