How to Make Your Clay Bricks
Author : RuiGuang Time : 2013-11-14 Click :
Clay is a widely available material that's easy to obtain and inexpensive to use compared to other building materials. Builders use clay formed into bricks to create large stable structures that last for years in any climate. The process of making clay bricks requires more than forming the clay into uniform rectangles. To make bricks strong enough to use for building, you must bake the clay. The baking process hardens the bricks so that they don't crack or crumble with use and turns soft clay into a hard, buildable material.
1.Dig up clay soil with a shovel to use as the material to build the bricks. You can identify clay soil because it is sticky and gummy when wet.
2.Grind the clay soil into a fine powder or paste using large, fat stones as "grinding stones." This will assist in the bonding process. Some clay soil is already at the right consistency, but grinding will generally improve the end result of your brick building.
3.Mix the ground clay soil with water to make a thick malleable paste. Traditionally, clay bricks were molded by hand or with wooden tools. Today, many clay bricks are made in purpose-built molds. Whichever molding method you use, aim to produce clay bricks of the same size and shape.
4.Leave the bricks out in the sun to dry, or dry them in an oven to remove the moisture. Traditionally, brick builders lay bricks out in the sun to dry -- and this is still a method used in many countries as it does not require fuel or electricity.
5.Fire the dried bricks in a kiln. A kiln is a type of ceramic oven that heats the contents to a very high temperature for a number of hours. This will alter the molecular bonds of clay and bind it to the other molecules -- making very solid bricks as a result.
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