Red bricks are suitable for wall materials, and can also be used for masonry columns, arches, chimneys, floors and foundations. Old-style buildings often use it as a building material. Red bricks are easy to absorb water, and have certain strength and durability. Because of their porosity, they have certain thermal insulation and sound insulation. Brick walls and cement mortar combine well. Therefore, they are suitable for wall materials, and can also be used for masonry columns, arches, chimneys, floors and foundations. When producing bricks, high fire is generally used to burn the bricks inside and out, and then the fire is turned off to allow the kiln and bricks to cool naturally. At this time, the air in the kiln is circulated, and there is sufficient oxygen, forming a good oxidation atmosphere, so that the iron element in the bricks is oxidized into ferric oxide. Since ferric oxide is red, it will also appear red.
Red bricks are suitable for wall materials, and can also be used for masonry columns, arches, chimneys, floors and foundations. Old-style buildings often use it as a building material. Red bricks are easy to absorb water, and have certain strength and durability. Because of their porosity, they have certain thermal insulation and sound insulation. Brick walls and cement mortar combine well. Therefore, they are suitable for wall materials, and can also be used for masonry columns, arches, chimneys, floors and foundations. When producing bricks, high fire is generally used to burn the bricks inside and out, and then the fire is turned off to allow the kiln and bricks to cool naturally. At this time, the air in the kiln is circulated, and there is sufficient oxygen, forming a good oxidation atmosphere, so that the iron element in the bricks is oxidized into ferric oxide. Since ferric oxide is red, it will also appear red.