Part 2 Making Concrete from Limestone Cement
- Mix two parts all-purpose sand to one part of cement.
- Add four parts of gravel or crushed brick to the mixture.
- Slowly add water to the dry ingredients.
- Mix the cement together.
- Wash off your mixing tools.
What do you need to mix cement?
Another "old rule of thumb" for mixing concrete is 1 cement : 2 sand : 3 gravel by volume. Mix the dry ingredients and slowly add water until the concrete is workable. This mixture may need to be modified depending on the aggregate used to provide a concrete of the right workability.
How much water is needed to mix cement?
Empty the mix into a mortar tub or wheelbarrow and form a depression in the middle of the mix. Measure the recommended water amount (each 80-pound bag of concrete mix will require about 3 quarts of water). Pour approximately 2/3 of the water into the depression. If using liquid cement color, add to the mixing water.