When installing a small sidewalk around your house, it is not always necessary to have concrete delivered by truck. Make it yourself instead in a cement mixer. Concrete recipes include specific ratios of cement, sand and gravel. Add water to activate the cement. Use the appropriate amounts of each ingredient to ensure your sidewalk is as durable and long-lasting as possible. Mix and pour sidewalk concrete on a day that is cool and slightly overcast.
Determine the amount of concrete needed based on the cubic yardage of the sidewalk form. To determine cubic yardage, multiply the length, width and depth of the form. Divide that number by 27. You will need approximately six to seven 94 lb. bags of cement, 1/2 cubic yard of sand and 3/4 cubic yard of gravel for each cubic yard of sidewalk you need to pour.
Add the dry ingredients into the mixer drum.
Start the mixer and gradually add water until a thick, soupy mixture forms. Add water bit by bit, so as not to use too much. Too much water will weaken the concrete. Too little water, on the other hand, will make the concrete stiff and difficult to work with. Use approximately 27 to 35 gallons of water per cubic yard.