synthetic sleeper are developed by the production process of forming with polyurethane forming, this type of sleeper are used to replace of wood sleepers because of limit resource. they are widely used at bridges, turnouts and also lrt.
zbrf developed synthetic sleeper according to jis 1203
synthetic sleeper are developed by the production process of forming with polyurethane forming, this type of sleeper are used to replace of wood sleepers because of limit resource. they are widely used at bridges, turnouts and also lrt.
they are made to specification of jis1203. with test results below:
flexural strength up to 203 n/mm2
bending test of young's modlulus up to 14600n/mm2
bending load resistance up to 195kn
longitudinal compressive strength up to 103 n/mm2
shear strength up to 8.6 n/mm2
ac withstand voltage 41.2 kv
dc insulation resistance up to 3.6x1014
spike puling out strength up to 17.68kn
density 0.79g/cm2
water absorption up to 4.6 mg/cm2
fatigue test: 105 cycles without any cracks