In the event of a fire, building materials must be able to withstand extreme loads. This should be tested and verified in advance during the development phase of these materials. In accordance with customer specifications, the requirements set by VersuchsStollen Hagerbach AG are tested. A high-performance burner (e.g. suitable for RWS [Rijkswaterstaat] fire curve) in a furnace with a 1.5 x 1.5 m testing area, coupled with versatile measuring technology and the expertise of VersuchsStollen Hagerbach AG, offers the optimum conditions to achieve this. Specialised testing apparatus with its own constructed burning chambers can also be realised. Without special protection measures, the non-combustible building material concrete is prone to spalling. Taking appropriate protection measures can help prevent spalling. The dimensioning of protection measures must be determined by testing on a case-by-case basis.