This standard specifies laboratory test procedures for determining the parameters used to describe the static and dynamic properties of padding elements for concrete sleepers (hereafter referred to as "under-sleeper pads") used in ballasted track.
The main areas of use of under-sleeper pads are:
- reduction of vibrations, structure-borne noise and secondary air-borne noise in tramways, underground railways, suburban rapid transit and main-line railway systems;
- reduction of ballast stress at high running speeds on main-line railway lines.
In addition to specifying the basic testing of relevant properties of under-ballast mats, this standard also sets out procedures for testing fitness for purpose and provides information on quality monitoring as part of quality assurance procedures.This standard, however, contain requirements pertaining to the properties of under-sleeper pads.