Ibikoresho bya asfalt biteye agaciro amazi: igihe ibikoresho bya asfalt bikorerwa ibikorwa bya mashini nko gukabije kw'ikinyejana cya 0.1 ~ 5 zitandukanye, no kuyazana mu rwego rw'amazi kirimo ibiyobyabwenge (EmulsiFier-stabilizer). Kubera ko EmulsiFier ashobora kwegeranijwe hejuru y'ibikoresho bya asfalt asfalt, hagabanijwe amakimbirane azwi cyane, asfarilt yagabanutse, kuburyo ibice bya Asfalt bishobora gukora sisitemu ihamye mumazi. Ibikoresho bya ashalt ni amavuta-amazi.