Gather the following items for making your own cement.
Limestone – The main ingredient in making natural cement is limestone. It should not be too hard to find since limestone is one of the world's most common sedimentary rocks. Limestone is a soft, fine-grained rock that can be white, black, or gray in color. You can tell if what you have is limestone by breaking the rock apart. The newly broken pieces should smell like swamp gas. Another way to test if your rock is limestone is by pouring some vinegar or acid on the rock. The vinegar should fizzle upon contact. You will also see bubbles and hear a popping sound.
Clay – You will want to use limestone that has a high clay content. If your limestone does not reach the ideal clay-to-limestone ratio, you may need to add clay to your mixture. The ideal ratio is one-quarter clay to three-quarters pure limestone. If your limestone does not have a significant amount of clay, you will instead end up with lime, which will not harden. (Related: Cement made from sugar processing waste is stronger than regular cement.)
Water – Cement is basically pulverized limestone powder. On its own, the powder won't do much, but when mixed with water, it becomes a clay-like substance that can be molded into whatever shape you need.
Kiln or oven – Your kiln or oven should have brick walls that can withstand temperatures of 1,800 to 2,500 F. It should also have a tall exhaust vent to produce a strong draft. You can use a fan or bellows to enhance the air intake of your kiln. Your kiln should have alternating layers of coal or charcoal since most types of wood are not capable of reaching temperatures high enough for making cement. However, there are some hardwoods you can use for your fuel.
Metal bar – You will need a metal bar or a similar tool to break apart your lumps of limestone. You can repurpose an old automobile axle for this.
Respirator – When pulverizing your limestone, you may accidentally inhale limestone particles. Breathing in this dust can be harmful to your health. You can avoid inhaling the limestone powder by using a respirator.
Gloves – Just as you wouldn't want to breathe in limestone dust, you won't want to expose your skin to hot limestone either. Burnt lime has caustic properties, so be sure to wear thick, durable gloves when handling limestone.
The premise of creating natural cement is to take limestone, heat it, pulverize it, and mix it with water. Follow these steps to make your own natural cement:
If you don't plan to use your cement powder immediately, be sure to store it carefully in an airtight container to prevent moisture absorption. Now that you have your own natural cement, you can learn how to make other DIY emergency projects by going to Preparedness.news.