| abstract |
The present invention relates to a polyurethane railway track bed, its preparation method and railway facility prepared from thereof. The polyurethane railway track bed of the present invention comprises a subgrade and a molding polyurethane layer, the molding polyurethane layer is set on the railway subgrade. By laying this molding polyurethane layer on the railway track bed, special requirements for environment, under which the polyurethane is poured on site, can be avoided and molding polyurethane layer with various density and/or hardness can be prepared and then laid on railway track bed according to practical needs of different railway track bed. |