To increase the quantity of water to make concrete conditions failed. Make it easy and yummy, but they make is when the ratio of water to cement. When the concrete is too liquid to break easily.
Adding water to make a liquid concrete. It is easily poured and compacted. But to make a drop of water to cement ratio higher. When the concrete is too liquid to rupture easily.
Increasing the amount of water makes the concrete condition to pour liquid and crowded easily. But it was reduced when water cement ratio to rise. When the concrete has too much liquid is broken easily.