Tile "water absorption" do not ignore

In recent days, the news that “the detection of tile water absorption is unqualified” has attracted many consumers to pay attention to the “absorption rate”. Before that, a large number of consumers paid more attention to the “empty rate” after tile tiles instead of “water absorption rate”. Water absorption." However, in addition to the emptying rate, the water absorption rate has a lot to do with the decoration quality: For example, the ceramic tile itself has a high water absorption rate, and the tiles may come off after being tiled. If the water absorption rate is too low, the tiles may fall off due to improper paving. . In order to increase consumer awareness and explain the importance of "water absorption," reporters visited the market in recent days.

The Current Tile Water Absorption Rate Is Not Watched Recently, the provincial capital consumer Mr. Tian suffered a sudden drop of a kitchen wall tile. Mr. Tian recalls that at the time, cooking was done and the tiles fell. In the renovation, Mr. Tian chose a mid-priced brand tile. After the renovation, he carefully checked it. There was no quality problem. But just a year later, the tiles suddenly fell off. Mr. Hou Tian, ​​who had consulted with the industry, was informed that the original reason was the water absorption rate of the tiles.

It is understood that the water absorption rate is a certain degree of adsorption and penetration of ceramic products to water, that is, the ratio of the quality of water added to the quality of the original dry brick after the tiles are fully absorbed in water. If the water absorption rate is low, it indicates that the product is strong, difficult to expand, and has a high internal stability. However, if the water absorption rate is too high, the green body may easily expand and crack, which may cause the wall tiles to fall off or empty the floor tiles. Therefore, water absorption is one of the important indicators to evaluate the quality of the intrinsic quality of ceramic tiles. According to Li Changqing, general manager of Marco Polo Tiles, ceramic tile with high water absorption is because the density of the billet is loose, which results in poor quality of the brick and is prone to cracking. There is a risk of detachment on the wall. However, low water absorption does not mean that it will not fall off. It is precisely due to the fact that the billet is hard and has a high density, and the problem of shedding is more likely to occur when the paste method is improper.

However, the reporter visited several brands of tile dealers and found that few consumers now ask questions about the water absorption rate when they buy tiles. Most people are buying brand influence, and actually value the most The price, design, and specifications of the tiles.

However, the issue of ceramic tiles due to water absorption is being questioned. Guizhou Province Industrial and Commercial Bureau recently conducted a random sampling of ceramic tiles on the provincial market and found 23 batches of unqualified products, of which 4 batches were unqualified due to water absorption, and there was a risk of falling off after use.

Li Changqing told reporters: “The water absorption rate is an important factor in determining whether tiles are easily peeled off. According to the different uses of walls and floors, many products have different water absorption rates. For example, the water absorption rate of wall tiles is high and the floor tiles are low. The products will be marked on the wall or floor when they are sold, but many consumers still do not use this as a reference factor. When they are used, they will be accompanied by self-assembly. Finally, it is easy to get rid of problems due to paving or improper maintenance. Therefore, it is recommended that consumers For the consideration of safe use, ceramic tiles should be laid according to the packing box or the manufacturer's instructions to avoid potential safety hazards."

The market visited most of the products and did not mention the water absorption rate. Reporters saw in most of the stores' tile sales outlets. Most of the ceramic tiles were sold without indicators of water absorption.

When reporters visited the market, they found that many tile sales personnel did not understand the water absorption rate of the tiles. In the modern decoration city multiple tile franchise stores, sales staff to introduce the kitchen wall tiles to the reporter, all from the ceramic tile density, thickness, color, style, material and other aspects of the introduction, but did not explain the water absorption rate. When a reporter asked about the water absorption rate, some sales staff replied that “the water absorption rate is certain to be qualified, and you don’t need to soak the water before you go home and you can go directly to the wall”; some sales staff said that “as long as the tiles are tiled before Water bubble for a long time, the water absorption rate has no effect on the quality of the tile after laying; "There are sales staff explained that" pottery tile water absorption rate will be better, posted on the wall is not easy to fall, but the price is more expensive."

Correspondingly, sales staff tend to recommend dense, thick tiles, and the thicker and denser the tiles, the less likely they are to fall. A salesperson introduced: "The thicker the tile, the higher the strength, the more sure it will not fall off after paving." And the reporter learned after consulting the decoration workers, the thickness and strength of the two indicators are with the tiles will not fall off too much in the future Big relationship. Insiders said that, for example, ordinary red bricks are very thick, but the water absorption rate is also very high. If the shop is not soaked, there is a good chance of peeling after paving, and the water absorption rate is too low. The moisture in the cement mortar will not be absorbed in the pavement, which will weaken the grip of the tile and cement mortar, and it will easily cause the falling off in the future.

In view of this situation, the reporter consulted with professionals on how to determine the level of water absorption. Mr. Wan, a Nobel ceramic tile company in Shanxi, said that ordinary consumers can judge the water absorption rate by simple methods such as dripping water and tapping. One way is to tap the tile gently to listen carefully to the sound. The product with low water absorption rate is crisp and sweet. The sound of high water absorption is dull; the other method is to drip water on the back of the tile. If the water seepage is fast, it means that the water absorption rate of the tile is high and the water seepage is slow or even non-absorbent, indicating that the water absorption is low.

According to industry sources, Xiao Bian revealed that many consumers will find that when buying tiles, many types of tiles are sold with high discounts and great discounts. Such tiles are often the most prone to problems. Since many of them are warehouse stocks, styles and colors are old, it is difficult to replace them once problems arise, and the troubles in use are increased.

Construction attention to the improper construction of the tiles is easy to fall off If conditions permit, consumers try to shop after the arrival of the tile, take a look at the tile color, size is the same, whether the brick surface is smooth, corners with or without tilt, cracking and other phenomena. If a problem is found at this time, you can find a factory or distributor in time to deal with it. Otherwise, after you bubble over the wall, you will find that there is a problem with the tile. If you have difficulties in rights protection and you change it, there may be additional economic losses.

Mr. Qi, general manager of Chuangyijia Decoration Co., Ltd. stated that the general ceramic tile product's outer packaging box will indicate the tile material, characteristics, as well as which kind of paving method, whether it is necessary to reserve expansion joints and other detailed construction suggestions. When consumers purchase and supervise the construction, they must refer to it. If some new products follow traditional construction techniques, it is easy to see improper construction. Among them, the water absorption of tiles is an important performance index of the product. The water absorption is different, and the method of laying is also different. The packaging instructions of ceramic tile products will include the index of water absorption and suggestions for paving methods. In the construction process, the decoration company will also adopt different paving methods according to different product characteristics. If the way of laying is improper, it is easy to cause the tiles to fall off.

At present, in the decoration industry, there are two types of tile paving methods - cement mortar paste method and thin paste method. The cement mortar sticking method is a relatively common construction method. Before the tile is laid, it is soaked in the water for a period of time. The cement sand is mixed and debugged according to a certain proportion, and the tile is plastered on the wall behind the tile. This method is a traditional construction method. For ordinary light bricks, glazed tiles; Another method is now the more popular thin paste method, that is, before laying bricks, the leveling of the wall to do the base layer, and then use tile adhesive paste the tiles on the wall, process More complex, this method is suitable for low water absorption, heavier wall tiles.

There are many reasons for the shedding of ceramic tiles. In addition to the improper laying methods, improper construction is also an important cause. Mr. Qi said: "For example, the use of expired cement, the high content of clay in the sand, improper proportioning of the cement mortar, the change of position when the tile is struck on the wall when paving, and the unsatisfactory grass-roots treatment will cause the later tiles to fall off. The project will not be inspected when it is affixed to the project, and will not come off until it is used for some time. Some consumers ask for non-standard decoration team construction and it is easy to cause such problems."

In addition, housing construction may be due to geological problems, resulting in a certain degree of settlement, causing wall cracking, resulting in the wall surface tiles, floor tiles cracking situation, generally in the form of a regular linear. This situation is inevitable and there is no good way to solve it. In addition, if the tiles are bumped, or are too close to the heat source, are subjected to cold or overheating temporarily temperature changes, there will be thermal expansion and contraction, there will be hollowing, falling off the case. When paving, consumers should pay attention to keep a certain distance from the heat source, check frequently and find that looseness immediately compensates.