The　present　study　evaluates　moisture　induced　damage　potential　using　a　sessile　drop　method　and　a　pneumatic　adhesion　tensile　testing　instrument　(PATTI).　The　bonding　behavior　of　the　aggregates　(granite　and　limestone)　and　cup　lump　rubber　modified　asphalt　binder　(CMB)　with　wax-based　surfactant　(WS)　was　evaluated.　The　results　revealed　that　the　granite　aggregate　exhibited　a　higher　work　of　adhesion　compared　to　the　limestone.　In　the　dry　condition,　the　addition　of　more　than　0.15%　WS　to　the　CMB　reduced　the　work　of　adhesion　and　the　bonding　strength.　Using　the　sessile　drop　method,　the　moisture　resistance　of　the　limestone　aggregate　with　the　CMB　and　WS　was　enhanced,　but　the　bonding　strength　was　reduced.　The　incorporation　of　WS　reduced　the　surface　free　energy　(SFE)　regardless　of　the　aging　conditions　and　made　the　aggregate　surface　more　hydrophobic　for　the　increased　interfacial　adhesion.　Incorporating　WS　in　the　CMB　improved　the　work　of　adhesion　under　the　wet　condition,　thus　indicating　that　WS　is　an　effective　anti-stripping　agent.　Considering　its　comprehensive　properties　in　the　CMB,　the　amount　of　WS　should　be　limited　to　0.15%.