To　improve　the　bonding　properties　of　cement-based　adhesives,　epoxy　resin　is　added　in　this　study.　The　effects　of　various　mix　parameters,　including　epoxy,　PVA　powder,　HPMC,　silica　fume,　and　synthetic　fibers,　and　water　contents,　on　the　mechanical　performance　of　epoxy　modified　cement-based　adhesives　are　investigated.　Experimental　results　show　when　the　content　of　epoxy　exceeds　15%　of　the　cement　by　weight,　the　bond　strength　improves　by　more　than　90%.　But　excessive　epoxy　adversely　reduces　the　compressive　strength　of　cement-based　adhesive.　The　addition　of　PVA　powder　and　HPMC　also　enhances　bond　strength.　Water　binder　ratio　and　silica　fume　mainly　affect　the　compressive　strength　of　the　cement-based　adhesive.　The　addition　of　synthetic　fibers　greatly　improves　the　toughness　and　crack　resistance　of　the　material.　This　study　provides　a　solid　basis　for　the　optimization　of　mix　compositions　of　cement　based　adhesives　in　various　civil　engineering　applications.　　©　Published　under　licence　by　IOP　Publishing　Ltd.