Cement Cloth Planters Its a one to four ratio... ( 2 cups cement to 8 cups water) however much u want to make. They said to make it the thickness of onion ring batter. Make sure that your cloth is well saturated before you drape it.
The water cement ratio is the ratio of the weight of water to the weight of cement used in a concrete mix and has an important influence on the quality of concrete produced. A lower water-cement ratio leads to higher strength and durability, but may make the mix more difficult to place. Placement difficulties can be resolved by using plasticizers or super-plasticizers.