Ukuba i-bitumen viscosity iphezulu, ukuchasana kwe-friction ye-bitumen kuya kuba kukhulu, ukubunjwa kwe-spurting kuya kuba kuncinci, kwaye inani le-overlaps liya kuncitshiswa. Ukuze ulahle le ngxaki, indlela eqhelekileyo kukwandisa ububanzi bombhobho, kodwa oku kuya kunciphisa ngokuqinisekileyo isantya sejethi yamanzi, kunciphise umphumo we "impact-splash-evening", kwaye wenze umgca wokungena ungalingani. Ukuze kuphuculwe ngcono iimpawu zobugcisa bokwakhiwa kwe-asphalt, iimpawu ze-asphalt kufuneka ziphuculwe.

Okwangoku, kukho iilori ezisasaza ibhitumene kwimarike ezineziphumo ezingonelisiyo zokungena kwaye zinokuba nokungalingani okuthe tyaba kumaleko wokungena. Ukungalingani okuqhelekileyo kwecala yipatheni enqamlezileyo yomaleko wokungena. Ngeli xesha, amanyathelo athile anokuthathwa ukuze kuphuculwe ngokufanelekileyo ukufana kwecala le-asphalt layer. Isantya selori esasaza ibhitumene ekrelekrele ngokupheleleyo kufuneka sitshintshwe kuphela kuluhlu olusebenzayo, olungayi kuba nempembelelo ekufaniseni okuthe nkqo kwe-asphalt layer. Kuba xa isantya sikhawuleza, isixa se-asphalt esitshiziweyo ngexesha leyunithi siba sikhulu, kodwa isixa se-asphalt esisasazeka kwindawo epheleleyo ye-??yeshishini ihlala ingatshintshi. Utshintsho kwisantya lunempembelelo enkulu kwi-uniform yecala.

Ukuba ukuphakama kombhobho wokutshiza ukusuka emhlabeni kuphezulu kakhulu, kuya kunciphisa amandla empembelelo yokutshiza ibhitumene kwaye buthathaka "impembelelo ye-splash-homogenization" isiphumo; ukuba ukuphakama kombhobho wokutshiza ukusuka emhlabeni kuphantsi kakhulu, kuya kunciphisa impembelelo yokutshiza ibhitumene. Inani eligqithisiweyo lomzobo wefeni kufuneka lihlengahlengiswe ngokwemeko yokwenyani ukuze kuphuculwe umphumo wokutshiza i-asphalt.