Used when repairing concrete or when applying or repairing stucco, concrete slurry is a smooth, rather liquid version of regular concrete. It serves to bind or marry the old concrete surface to the new one, resulting in a secure bond between the two surfaces. Commercial slurry mixes are available, but they tend to dry and harden almost before you can use them. Homemade slurry gives you a longer window of time to apply it before it hardens.
Place 1 qt. of Portland cement powder to a small plastic pail.
Add 1/2 cup of water slowly, mixing well. Add enough additional water so the mixture becomes the texture of latex paint or maple syrup.
Add 1/4 cup waterproof white glue to the mixture and stir well.
Only mix as much slurry as you will use in 15 to 20 minutes, because it dries quickly, especially in hot, dry weather.