An inspection technique whereby a coin, key, or other small metallic object is tapped against an installed tile to determine by sound whether the tile is completely bonded to its backing. A debonded tile is referred to as a drummy wall or floor tile.
A substance capable of holding materials together by surface attachment. Note: Adhesive is the general term used and includes cement, glue, mucilage, thin-set and paste. All of these terms are loosely used interchangeably. Various descriptive adjectives are applied to the term adhesive to indicate certain characeristics as follows: (a) Physical form,. that is liquid adhesive, tape adhesive, (b) Chemical type, that is, silicate adhesive, resin adhesive, (c) Materials bonded, that is, paper adhesive, metal-plastic adhesive, can label adhesive, (d) Conditions of use, that is, hot-setting adhesive.
Has a similar composition to limestone but with holes created by hot springs. Colours include beige, red, yellow and brown, with some variation from piece to piece. The porous holes can be left unfilled and the surface can be simply honed or they can filled in with either a resin or a cement based fill. The surface of filled travertine can be either Honed or Polished.