What is the difference between hollow and solid bricks? Why does the country want to ban the use of solid bricks?

Hollow brick: environmental protection, with less material, the quality is very light, strong, heat preservation, sound insulation and noise reduction performance is good, environmental protection, no pollution. Solid brick: more materials, the quality is also heavier, but the seismic capacity than the hollow brick good.

The reason why the country banned the use of solid bricks is: red brick is heavier than hollow bricks, laying the same thickness of the wall, burnt red bricks than hollow bricks need to be more than the amount of clay about 1/3, and burnt red bricks consume more energy such as coal than burnt hollow bricks, the amount of smoke and dust emissions are also large, the damage to the environment is more serious.

1, hollow brick is commonly used in the construction industry, the main wall material, due to the light weight, less consumption of raw materials and other advantages, has become the first recommended by the national building sector products. As with red bricks, the common manufacturing raw materials of hollow bricks are clay and cinder ash, and the general specification is 390×190×190mm.

2. Hollow bricks are made of clay, shale and other raw materials, after raw material treatment, molding and sintering. Hollow brick hole in the total area of the brick where the percentage of the area of the brick, known as the hollow brick hole rate, generally should be more than 15%. Hollow bricks and solid bricks compared to save a lot of land and brick burning fuel, reduce transportation weight; reduce the labor intensity of brick making and masonry, speed up construction progress; reduce the weight of the building, raise the number of floors of the building, reduce the cost.

3, red brick is clay, shale, gangue and other raw materials, after crushing, mixing and kneading to artificial or mechanical pressing molding, after drying at a temperature of about 900 degrees Celsius in the oxidizing flame burned into the sintered building bricks, invented by the ancient Romans. Now many of the surviving classical buildings in Europe have red bricks on their roofs and walls.