Graphene　has　local　superconductivity,　very　high　electron　mobility,　good　mechanical　properties　and　high　stability,　and　is　therefore　an　excellent　filler　material　for　self-sensing　cementitious　composites.　The　incorporation　of　graphene　provides　a　broad　application　prospect　for　the　development　of　self-sensing　cementitious　composites.　This　work　explored　the　effects　of　polyethylene　(PE)　fiber　size　and　surface　modifiers　on　the　compressive　and　tensile　properties　of　ultra-high　performance　concrete　(UHPC).　Then,　graphene　was　added　on　this　basis　to　observe　the　effect　of　graphene　doping　on　the　electrical　properties　of　UHPC　and　to　select　the　optimal　doping　amount.　Finally,　the　mechanical　properties　and　tensile　and　compressive　self-sensing　of　the　UHPC　added　with　graphene　were　tested.　Finally,　the　bridge　with　higher　stress　under　self-weight　is　simulated　by　finite　element　to　find　the　location　of　sensor　placement　and　design　a　simple　bridge　health　monitoring　system.　©　2022　Faculty　of　Engineering,　Alexandria　University