Application of Polyurethane Polymer and Assistant Rails to Settling the Abnormal Vehicle-Track Dynamic Effects in Transition Zone between Ballastless and Ballasted Track

Table 1

Physical and mechanical properties of the polyurethane polymer.

Properties	Value
Density (g/cm^3)-ISO 1183	1.20
Shore hardness (°)-ISO 868	100
Bond strength (MPa)-ISO-10364-1993	5
Tensile strength (MPa)-ISO 37-2005	20
Breaking elongation (%)-ISO 37-2005	300
Low-temperature brittleness (°C)-ISO 812-1991
Compression strength (MPa)-ISO 604-2002	40