One, glazed brick wall in the drum, some glazed tiles off
(a) The phenomenon knocked the wall open and some of it even fell off.
(b) Cause 1. The grassroots is dry and the watering is insufficient, which causes the cement mortar to lose water too quickly, resulting in low adhesion between the glazed tile and the mortar. The cement mortar or adhesive coating takes too long and the slurry is dried and cannot be bonded. 2. The grass-roots level is not even, so that the thickness of the mortar is not uniform when inlaying, and the shrinkage stress of the central slurry is inconsistent. 3. The glazed tile is not soaked in water before construction, and the dry brick quickly absorbs the moisture in the cement mortar, resulting in dehydration of the mortar and affecting the setting hardening. Or do not dry after soaking. 4. Before the construction of the base or glazed tile, the brick floating soil was not removed, and the brick and adhesive were not combined. 5. The construction mortar is not full and empty drums are formed. Or the mortar is too thick and the operation is overweight, so that the mortar sinks in and the water floats, weakening the adhesive force of the mortar. 6. After the mortar solidified, the moving glazed tile was corrected.
(III) Measures 1. Handle the base layer as required and water the wet wall. 2. Before the laying of the glazed tiles, remove the surface of the floating soil, soaking in moist, place it in the shade. 3. Correcting anytime and anywhere at the time of affixing, prohibit mortar correction after water is collected. 4. When plastering, each glazed tile is plastered evenly and properly, and it should not be knocked after it is pasted. 5. Clean up the wall in time after affixing. Caulking must be dense.
Second, the glazed brick crack
(A) The phenomenon of cracks in the glazed tiles that are attached to the wall.
(b) Cause 1. Glazed bricks are of poor quality, crunchy materials, and high water absorption. Due to moisture expansion, cracks occur in the glazed sand. 2. When using cement paste plus 107 glue, the plaster is too thick, and the cement solidifies and shrinks causing the glazed tile to deform and crack. 3. Glazed tiles create hidden flaws during transportation or handling. 4. Glazed tiles that are attached to unheated areas in cold areas are affected by slurry fusion.
(III) Measures 1. Select the good quality glazed tile on the back to see the material is fine, and the water absorption rate is less than 18%. 2. Glaze tiles are soaked in water before sticking. Do not hit the brick surface hardly during construction to prevent hidden damage. 3. Cement mortar should not be too thick or too thin.
Third, the surface is uneven, the seam is not straight
(A) The phenomenon of uneven glazed brick walls, seams are not straight, uneven sewing.
(b) Cause 1. The quality of glazed tiles is not high, and the dimensional error is large. When selecting the size of glazed tiles, it is not strict. 2. During construction, the affixed thread is affixed with gray cakes and rows of bricks. 3. Improper paste operation.
(III) Measures 1. Buy good quality glazed tiles. Before the construction, according to the standards of the glazed tiles, the wooden frames are selected to separate the standard size, larger than the standard size, and smaller than the standard size. The same type of brick is used on one wall. 2. Do a good job of affixing gray cakes, find standard work, and pre-arrange the glazed bricks. 3. Each line of glazed tiles is well-adjusted and leveled by a ruler board. Avoid correcting the movement after the mortar has closed.
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