The　photocatalytic　exposed　aggregate　cementitious　materials　(PEACM)　have　been　proposed　and　successfully　utilized　for　environmental　remediation　in　recent　years.　In　this　work,　we　develop　a　novel　photocatalytic　recycled　asphalt　pavement　aggregate　(PRAPA),　namely　g-C3N4　nanosheets-recycled　asphalt　pavement　aggregate　composites.　The　cohesive　property　of　residual　asphalt　is　beneficial　to　the　attachment　of　g-C3N4　nanosheets　(CNNs)　on　the　surface　of　recycled　asphalt　pavement　aggregate　(RAPA)　due　to　a　strong　bond　between　CNNs　and　RAPA.　The　results　show　that　with　a　higher　concentration　of　CNNs　suspension,　the　NOx　removal　efficiency　of　both　the　PRAPA　and　the　associated　PEACM　increases　first　and　then　tends　to　be　constant.　Compared　with　the　CNNs-standard　sand　composites　and　the　associated　PEACM,　the　PRAPA　and　the　associated　PEACM　hold　the　higher　photocatalytic　activity　and　better　resistance　to　rain　wash,　respectively.　The　findings　of　this　work　provide　a　new　route　for　preparation　of　highly　cost-effective　photocatalytic　building　materials,　and　contribute　to　a　desirable　option　for　recycling　waste　asphalt　mixtures.　(C)　2019　Elsevier　Ltd.　All　rights　reserved.