To make concrete, you will need cement, sand, gravel, and water.
First, mix the cement, sand, and gravel together in a ratio of 1:2:3. This will create the dry concrete mix. Then, add water to the mix and stir it until it reaches a thick, dough-like consistency. You may need to add more water or more dry mix, depending on the humidity and temperature.
Once the concrete is mixed, pour it into the desired mold or form and smooth it out with a trowel. Allow the concrete to cure for at least 24 hours, or according to the manufacturer's instructions. After curing, the concrete will be hard and strong.
Keep in mind that making concrete can be a labor-intensive process, and it is important to follow the instructions carefully to ensure that the concrete cures properly and has the desired strength and durability.