What's the better difference between blue bricks and red bricks?

When it comes to bricks, you can think of red bricks and blue bricks. Generally speaking, red bricks are widely used in buildings, while blue bricks have better antique effect, and the decoration is full of retro flavor. What's the difference between blue bricks and red bricks except their colors? Now briefly introduce the difference between blue bricks and red bricks.

The difference between blue brick and red brick

1, red brick is the cheapest of most building materials. Its porous surface has a certain thermal insulation effect, and its hardness and durability are better in the traditional sense, so it is widely used in wall masonry. Many honest buildings use red bricks as building materials.

2. The corrosion resistance and compressive strength of blue bricks are better. It was only in modern times that red bricks gradually appeared and became popular on the architectural stage. It was not until the state promulgated that the burning and use of red bricks were about to be banned that red bricks gradually withdrew and were replaced by clay hollow bricks. And gradually recognized by the general public.

3. The blue brick is a sintered brick, and the main raw material is clay, which is made by mixing and extruding with water. Then fired in a brick kiln to about 1000 degrees Celsius, and then cooled with water, so that the iron in the clay is not completely oxidized, and it has good weather resistance and water resistance. Red brick is a sintered building brick made of clay, shale and coal gangue, which is crushed, kneaded, dried and fired by high temperature oxidation flame.

4. The red brick will burn through the inside and outside of the brick, and then turn off the fire to naturally cool the kiln and brick. The air in the kiln circulates, and the oxygen is sufficient, forming a good oxidation atmosphere, and the iron element in the brick is oxidized into iron oxide. So it looks red. After the brick is burnt thoroughly, water is poured directly into the kiln. Because of the high temperature in the kiln, water can quickly turn into steam, which hinders the air circulation. In the anoxic state, the iron oxide in the brick is reduced to ferrous oxide, thus showing the blue brick we see.

5. The blue brick is stronger than the red brick, with good alkali resistance and durability. However, the firing process of blue brick is complicated, with high energy consumption, low output and high cost, and it is difficult to realize automatic and mechanized production, so the price is higher than that of red brick, generally 2-3 times that of red brick. Red brick is simple to make, high in production efficiency and wide in use. However, red brick is a solid brick, which needs a lot of clay, resulting in a large loss of clay, so it is forbidden to produce clay solid brick now.

The above is an introduction about the difference between blue bricks and red bricks. The question of which is better, red brick or blue brick, depends entirely on personal preference. I hope these things compiled by Bian Xiao can help you. Please pay attention to our material selection manual column for more decoration material selection knowledge!