I have a large number of tiles on the walls of the laboratory nowadays, and the whole piece of fall, years ago is normal, do not know how the matter, please answer expert!
1, if the mortar is not loose, only the tiles off, the back of the tile and the surrounding mortar scraping the net, in the 107 glue mixed with a little cement into a paste, in the back of the tile evenly coated with a thin layer , Then press the tile can be tightened.
2, if the mortar together with the tiles fall together, first in the original base surface gently chisel some pit, with a mixture of 107 glue mortar re-paste, or with cement, E-44 epoxy resin, acetone, ethylenediamine (Chemical shop available) by 5: 3: 2: 1 ratio of mix well, with a brush on the base surface brush a layer, and then peel off the tiles up until the mortar hardening.
There are two possibilities:
One, paving time and space drums, two, paving no seam or stay too small, hot up caused by cold
Well, upstairs positive solution: upstairs friends said the first kind of hollowing the general two kinds of situations: 1, the workers in the construction did not have a responsible inspection of the back of the tile is fully integrated with the cement or cement label is not in accordance with the standard procurement , Resulting in cement after the tile off. 2, manufacturers in the tiles factory accidentally anti-fouling wax hit the back of the tile to reduce the combination of ceramic tile and cement performance. Specific identification method, hand tapping the drums around the other tiles there is no like knocking into the empty box of the sound, if there is basically that the process of paving caused by the phenomenon of hollowing.
Upstairs friends said the second case is also easier after the tile paving the situation, the cement in the contraction of the time or the temperature changes so that the heat up and down, paving the process if there is no stay or stay Too small will make the tiles from the cement, there is a situation that the house is a long time due to the foundation will moderate subsidence problems, will lead to wall tiles appear drums, fall or crack occurs. Personal advice solution: 1, if the drop of the tile is not much landlord do not want trouble, you can use glass glue or marble glue from the new paste on the wall, but the useful time will not be very long. I hope I can help you
