BS EN 14488-6:2006 – Testing sprayed concrete – Part 6: Thickness of concrete on a substrate

1 Scope
This standard describes methods for the determination of the thickness of sprayed concrete on a substrate after spraying. The results can also give an indication of the parallelism of the concrete to the substrate. The substrate may be rock, soil, concrete or other surface.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
Not applicable.
3 Principle
In fresh concrete, a depth gauge is pushed into sprayed concrete and the thickness is measured.
In hardened concrete, holes or cores are drilled to the substrate. The depth of the holes or extracted cores is then measured.
4 Equipment
4.1 Template sheet, if used, as shown in Figure 1.
The template sheet may be made of suitable material. Drill five holes to be spaced (600 ± 50) mm in two lines of three at right angles as shown in figure 1. The template shall be flat when in use.
BS EN 14488-6:2006 – Testing sprayed concrete – Part 6: Thickness of concrete on a substrate