Influence of the Thin Coating Repair on the Prevention Properties for Fall-off of Tile Facing at external Walls

Part 1. Deformational performance test

Abstract

After tile facing was applied to a surface mended by thin mortar rendering, the specimen was subjected to alternate heating and cooling (lamp irradiation and spraying) to reproduce thermal movement, and then a deformational performance test was conducted. When mortar adhesives were used for the tile facing, tiles were the most important factor affecting the deformational performance of the specimen, lamp irradiation and roughening were the next important factors, and the effect of thin mortar rendering was relatively small. When elastic adhesives were used for the tile facing, the specimen showed favorable deformational performance, which was not affected by roughening and thin mortar rendering.