You need enough sugar to bond to enough water molecules to prevent enough concrete from bonding to it. It’ll take a pound or more, because you need to “capture” the water molecules before the concrete can. The nice part is that you don’t need to be careful about it; You can just pop a bag or two straight into a concrete mixer, and let the mixer do its job.
I see this online, how true is it though? like do I need a bag of sugar or just a few sprinkles.
You need enough sugar to bond to enough water molecules to prevent enough concrete from bonding to it. It’ll take a pound or more, because you need to “capture” the water molecules before the concrete can. The nice part is that you don’t need to be careful about it; You can just pop a bag or two straight into a concrete mixer, and let the mixer do its job.
Ideally maybe repack the sugar into a basic brown paper bag that will dissolve and not leave much in the way of trace dyes or waterproof packaging