How to detect floor tile hollowing

Tap the four corners and center of the pasted tile with a metal bar, and judge whether the tile is empty by the sound made by tapping. If the knocking sound is dull, it means that the shop is solid and firm. On the contrary, the loud sound shows that the wall and floor tiles are not laid firmly and there is empty drum phenomenon.

There are some differences in tile quality acceptance regulations in different regions, but there is little difference in tile hollowing rate in general. The empty drum rate of floor tiles should be controlled within 3%, and there should be no empty drum on the main channel; The hollowing of wall tiles should be controlled within 5%, that is, the hollowing area of a brick should not exceed 5% of the tile area. If the empty drum area exceeds the regulations, it needs to be reworked and repaired.

Matters needing attention in tile use

Before tiling, consumer sampling should be carried out to see whether the grade and color difference are consistent with the samples. If it is confirmed, it is suggested that the person in charge of construction sign for it, otherwise, the tile seller will be notified immediately.

The slope of the bathroom floor tile should be reserved about 1%, which is lower than the lateral floor tile 10 mm, and the slope of the kitchen floor tile should be reduced appropriately.

Before paving, pay-off positioning and brick arrangement should be carried out. Non-whole bricks should be placed in secondary positions or internal corners. The whole people think it is best to pave the whole brick from the bottom up to ensure the decoration effect of the whole bathroom. Each wall should not have two columns of non-integers, and the width of non-full width brick should not be less than 1/2 of the whole brick. Pay attention to putting half a brick on the top of the wall brick, and the width of brick joint is 2 ~ 4 mm.

For the above contents, please refer to People's Daily Online-Cracks appear in new wall tiles due to irregular construction.