Four Classes of Burnt Brick
Burnt bricks are of high quality, but they also contain some defective bricks. There are two types of clay bricks: burnt clay bricks and unburnt clay bricks. On the other hand, burned bricks are more commonly used for construction. There are four types of burnt clay bricks for masonry, which determine the overall quality of the brick’s strength, appearance, and shape. The four classes are as follows:
First Class Bricks
When compared to other classes, first-class bricks are of high quality. They are table-molded and fired in large kilns. As a result, these bricks have a standard shape, sharp edges, and smooth surfaces. They are more robust and long-lasting. They are suitable for permanent structures. However, because of their superior properties, they are more expensive than other classes.
Second Class Bricks
Second-class bricks are of moderate quality and are molded using the ground-molding process. Kilns are also used to burn these bricks. However, because of the ground molding, they do not have smooth surfaces or sharp edges. Because of the unevenness of the ground, the shape of the bricks is also irregular. These will also provide the best results in terms of strength and durability. The brick structure requires smooth plastering.
Third Class Bricks
Third-class bricks are low-quality bricks that are commonly used for temporary structures, such as unburnt bricks. These are not appropriate for rainy climates. They are ground-molded bricks that have been burned in clamps. The surface of these bricks is rough, and the edges are uneven.
Fourth Class Bricks
Fourth-class bricks are of poor quality and are not used in the structure. They are crushed and used as aggregates in the production of concrete. They are made by over-burning, which causes them to become overheated and brittle. As an outcome, they are brittle and unsuitable for construction.
For your masonry projects in Danbury, CT, be sure to call Wilson's Landscaping And Masonry at (203) 242-8356 today!