Fatigue Performance of Steel–UHPC Composite Bridge Deck System with Large Longitudinal Rib

Table 1

Mix proportion of UHPC (unit: kg/m³).

Cement	Fly ash	Silica fume	Quartz sand		Water reducer	Water	Steel fiber
			10–20 mesh	40–70 mesh
634	168	159	214.6	858.4	20	146	156