There are many differential ways of mixing concrete, depending on its practice. For foundation drudge you wish a further packed concrete, one that is able to resist as yet compression as imaginable. For this you hunger a bona fide precise blend of concrete, sand, mini aggregate and H2O.
To cinch you admit a Correct alloy you'll yen to benefit a metal cone that is specially designed for a cement "Downfall comp."
It is besides a bad aim To gauge your ingredients in a bucket rather than degree by shovelful, as a bucket Testament ante up you a still another accurate measurement.
Instructions
1. Shop for all of your ingredients: Portland cement (generally sold in 25 pound bags), sand, petite aggregate, mixing tub or cement mixer (purchased or rented).
2. Pour your cement into your measuring bucket. Message how comprehensive the bucket is. Place the "slump cone" on a flat surface and fill with concrete. Ram a small stick through the top of the cone and into the concrete to remove any air bubbles. Carefully lift off the metal cone.
Add precisely twice as much sand as dry cement, measured with your bucket.
4. Add four times as much aggregate as cement as measured by your bucket. Aggregate cannot be more than 3/4-inch in diameter.
5. Use your bucket To gauge an amount of water equal to 55% of the amount of cement. In other words, add just over half as much water as you did cement. Mix thoroughly. Concrete should be about as thick as pancake mix.
6. This will be your benchmark for further measurements. Pour the dry cement into your mixing tub or into your concrete mixer.3. Approximately 1/3 of the cone should "slump." If more than 1/3 of the concrete cone sags add more concrete to your mix. If less than 1/3 sags then add small amounts of water to your mix until you get a proper "slump."
7. Wet the ground before pouring your concrete. One hour after pouring cover your concrete with burlap or cloth tarps and wet thoroughly. Keep the tarps wet for 14 days. Remove tarps after 2 weeks but continue spraying foundation cement with water for another 14 days. Do not build on the foundation until it has cured for 28 days.
