THE STANDARD IN 13.888: GROUTING MATERIALS
PURPOSE OF THE STANDARD:
This European standard is applicable to all grouts used for laying ceramic tiles on walls and floors, indoors and outdoors.
DEFINITIONS:
Firstly, two different types of grouts are foreseen:
- Cement-based grouting material type “CG”: a mixture of hydraulic binders, mineral fillers and organic and inorganic additives, which only needs to be mixed with water or liquid to be added just before use.
- Reactive resin grouting material type “RG”: a mixture of synthetic resins, mineral fillers and organic and inorganic additives, the hardening of which results from a chemical reaction.
- Secondly, the characteristics that they must fulfil are defined, differentiated into:
- Fundamental characteristics: these are the requirements that grouting materials must meet.
- Additional features: these are extra requirements applicable to cement-based grouts only, for applications requiring higher levels of performance. The concepts of reduced water absorption and high abrasion resistance, identified by the letters “W Ar“, are introduced.
