Application of bituminous-concrete with frame-separation in steel bridge deck pavement

This paper describes a new type of bituminous concrete bridge deck pavement with frame-separation, the lower layer of which is designed to have a frame-separation structure in order to obtain bituminous concrete units that are independent from each other, while the upper layer is paved with fiber bituminous concrete. Pavement with this new structure has been successfully applied to a steel bridge with double decks for dual purposes of highway and railway uses, which is able to restrain the pavement deformation within an acceptable limit and settle the maintenance and repair problem of the bridge.