Red brick is a common building material used in building houses. Almost everyone has seen red brick, but now Red Diamond is slowly facing production ban due to environmental problems and has begun to implement Cement brick . Then some people may wonder why red bricks are strictly prohibited since the use of red bricks is so common? Now let's introduce which is better, red brick or cement brick, and their respective characteristics.
It is common to build houses with red bricks, and everyone is familiar with it. However, because the production of red bricks is not environmentally friendly, it has been gradually prohibited in China. In order to protect the environment, China began to use cement bricks. Is it better to use cement bricks or red bricks? Now let's introduce the characteristics of red brick and cement brick, which is better, and hope it can help you.
Comparison between red brick and cement brick
Net weight: red brick is made of clay, which is self weight; Cement bricks are generally gray, made of cement, coal ash, coal ash, etc., hardened, and have light deadweight.
Application: Red brick is easy to absorb moisture, and the wall and mixed mortar are well integrated; Cement brick is an aerated block and aerated concrete with high strength. It does not need to be fired. It has high strength, good durability, standard specifications, complete appearance and uniform color.
Environmental protection: burning red bricks damages a lot of cultivated land and consumes coal. There are almost deep pits and man-made deserts around the brick factory; Cement bricks use coal ash, furnace slag, coal gangue, tailing slag, chemical slag or natural sand, sea mud, etc. (one or more of the above raw materials) as the main raw materials, and use cement as the coagulant. They are not calcined at high temperature. They are more environmentally friendly and have been vigorously developed in China.
Some shortcomings of cement brick
The cement brick shall be vibrated and formed with 425 # or 525 # cement and stone sand in the mold. It is light in weight, good in heat insulation, but poor in compression resistance. It can be damaged by kicking with feet. It is generally used for frame structure buildings, not for houses loaded with walls. Another disadvantage is that the fusion with plastering mortar is not as good as red brick, which is easy to produce gaps in the wall, affecting the beauty. During construction, sufficient water shall be sprayed. For villas with high requirements, steel wire mesh can be hung on the wall to effectively prevent gaps.
However, because red bricks will damage cultivated land, China does not advocate the use of red bricks. Now most cities have prohibited red bricks from entering the construction site and gradually eliminated them. Although cement brick has some shortcomings, it still has room for development and has a simple and natural appearance. It can be used as a clean water wall or any external decoration. Therefore, it is a promising upgrading product to replace clay brick.
Benefits of developing cement bricks
1. The economic benefits are obvious. The product cost and market price of cement bricks will vary with different raw materials and other costs. The cost performance ratio of red brick is significantly higher.
2. Mature production technology: high pressure molding technology is selected, and cement bricks have strong compactness, low water absorption, good frost resistance and strong strength. With these advantages, it can be applied to various urban engineering buildings.
3. The cost is relatively low. More than 80% of the stone powder, waste stone or construction waste can be added into the environmental protection cement brick, which will greatly reduce the cost of cement. In addition to reducing the cost of raw materials, it can also enjoy the policy.
4. Wide use of products: cement bricks have been widely used in landscaping of gardens, residential areas, schools, factories, sidewalks, squares, etc.
After reading the above introduction, I believe you have a basic understanding of which is better, red brick or cement brick. Although red bricks have many advantages and are widely used, they are very destructive to the land. Although China has not yet explicitly banned the use of red bricks, it has also vigorously advocated the use of cement bricks. Moreover, the quality of cement bricks is gradually improving, so in order to protect the environment, we still need to use cement bricks as much as possible.
