The　objective　of　this　paper　is　to　investigate　the　effect　of　temperature　on　mechanical　properties　of　unbound　granular　materials　(UGMs)　blended　with　reclaimed　asphalt　pavement　(RAP)　and　virgin　aggregates　as　the　base　course　of　pavement.　To　this　end,　a　series　of　laboratory　tests　including　the　repeated　load　triaxial　test　(RLT)　and　the　quick　shear　test　was　performed　on　gap　graded,　continuous　graded　and　coarse　graded　UGMs　containing　RAP　(RAP-UGMs)　as　well　as　UGMs　of　neat　virgin　aggregates　(VA-UGMs)　at　varying　temperatures,　40　degrees　C,　22　degrees　C,　5　degrees　C,　and　10　degrees　C.　In　addition,　one　set　of　specimens　subjected　to　a　freeze-thaw　(F-T)　cycle　was　tested　to　evaluate　the　susceptibility　to　that.　It　is　found　that　temperature　has　significant　effects　on　Mr　and　shear　strength　of　both　RAP-UGMs　and　VA-UGMs.　Compared　to　VA-UGMs,　RAP-UGMs　exhibit　fairly　comparable　Mr　at　non-freezing　temperatures.　However,　the　addition　of　RAP　apparently　lowers　the　shear　strength　of　UGMs.　For　both　RAP-UGMs　and　VA-UGMs,　Mr　has　very　significant　growth　at　10　degrees　C　compared　to　non-freezing　temperatures　while　the　growth　for　RAP-UGMs　is　apparently　lower　than　that　for　VA-UGMs.　Moreover,　RAP-UGMs　are　less　susceptible　to　the　F-T　cycle　than　VA-UGMs.　And　the　addition　of　RAP　improves　the　F-T　resistance　of　UGMs.　(C)　2016　Elsevier　Ltd.　All　rights　reserved.