TS EN 14487-1

TS EN 14487-1 is the first part of the sprayed concrete standard series and focuses on the core vocabulary, on how technical specifications are expressed, and on how conformity is understood for this family of material. Sprayed concrete is concrete or mortar applied at high velocity to a surface, forming a layer or structural lining; it is widely used where placing conventional cast concrete is difficult, such as tunnels, slopes, and repair works.

Why sprayed concrete needs its own terminology

Sprayed concrete behaves differently from conventionally placed concrete. During application, properties such as bond to the substrate, rebound loss, layer build-up, early strength development, and surface quality can strongly influence the final result. Clear terminology helps designers, contractors, and specifiers use the same technical language across mix design, application, placing, and assessment. In general technical terms, this part provides the conceptual base for what is meant by sprayed concrete in product and execution contexts.

General technical context for specifications and conformity

In technical standards, these two themes usually support a structured way to describe properties such as workability, strength, adhesion, thickness control, and post-application performance. Conformity then provides the common framework used to judge whether a product or application meets the stated specification. The title of this standard indicates that definitions, specifications, and conformity are treated together, but no unsupported assumptions should be made here about exact test methods, numerical limits, or detailed acceptance rules.