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The floor tile wall bricks have different water absorption rates and the indoor tiles are divided into wall tiles and floor tiles according to the paving locations. Strictly speaking, wall tiles belong to pottery products, and floor tiles are usually porcelain products. Their physical properties are different. Both of them differ greatly in the selection of clay ingredients and firing techniques. The water absorption rate of wall tiles is about 10%%, which is higher than the water absorption rate. Only 1% of floor tiles are several times higher.
The floor of the bathroom and kitchen should be laid with low water absorption floor tiles, because the ground will often use a lot of water to wash, so that tiles can not be affected by water vapor, do not absorb stains. Wall tiles are made of glazed ceramics and have a high moisture content. The back of the wall tiles is generally rough, which also helps the adhesive to attach the wall tiles to the wall. Tiles are not easily affixed on the walls. Wall tiles used on the ground will absorb too much water and become difficult to clean. It can be seen that walls and floor tiles cannot be mixed.
Laying sequence is stressful. The floor tiles should be affixed from the inside to the outside. If the ground has a slope or there is a leak, you should pay attention to the direction of the drainage. The wall tiles should be laid from the bottom up. For the sake of beauty, the bottom layer of the bricks should be affixed. After pressing the tiles, press the floor tiles. When there are half bricks, you should try to place them below. In addition, a wall cannot be attached to the top at a time to prevent the tile from being heavy and causing it to fall.
Damaged tiles are radiated in large tiles. In order to increase the surface finish, facilitate cleaning and decontamination, and avoid erosion, manufacturers apply a layer of “glaze†(so the tiles are also called glazed tiles). This is a A variety of ceramic pigments, in which zircon sand was added as an opacifying agent, and the content of natural radionuclides in zircon sand was generally high.
It is understood that most of the building ceramics industry in China uses domestic zircon sand, and its gamma-ray specific activity exceeds the defined value of “radioactive substances†in the current national standard “radical hygiene protection basic standardsâ€. Studies have shown that the way of ceramic tile radiation to consumers comes from the radiation of gamma and beta lines of raw materials. The second is the radiation of rubidium from the human body. In addition, the glazed fabric dust that is exfoliated by ceramic tiles that have exceeded the service life or artificially damaged is taken by the human body. After inhalation, it will endanger health. In all the tiles, the ultra-white bricks in the polished tiles are more radiant, and the precipitation rate of the radioactive elements on the surface of the colored glazed tiles is higher than that of ordinary tiles.
In developed countries, tiles are only used in bathrooms, kitchens, and laundry rooms, and many of us not only tile the tiles in these places, but also store a large number of tiles in the living room, bedroom, and office space. When decorating, properly use decorative materials, it is best not to use ceramic tiles in the living room to reduce indoor radiation pollution. In order to prevent the indoor radioactive material content is too high, it is advisable to have a person perform radioactive detection before completing the renovation.
"Anti-conventional" paving tiles, such as breaking the colorful flower wall tiles on the floor of the bathroom, and then affixing the plain bricks to the wall, seem to be different, but the expert cautioned that: Unscientific and insecure, wall tiles and floor tiles cannot be used in an unconventional manner.