SUB-BALLAST-MAT AND MASS-SPRING-SYSTEM
DBS 918071-1, chapter 2.3 defines for sub-ballast mats with the purpose to reduce ballast pressure a permissible range of the static stiffness at room temperature of 0.10 N/mm³ ≤ zul C stat1 ≤ 0.15N/mm³ (v > 230 km/h). The determined nominal value for DAMTEC® KRAIBURG SBM with thickness of 10mm is inside this application range. Temperature