Izixhobo zokuxuba i-asphalt zidlala indima ebaluleke kakhulu kwishishini lokwakhiwa kweendlela. Isixhobo siya kuvelisa igesi engcolileyo, uthuli kunye nezinye iingozi zoluntu ngexesha lenkqubo yokuvelisa. Ukuze kuqinisekiswe ukuba okusingqongileyo akuchaphazeli, abavelisi kufuneka bathathe amanyathelo afanelekileyo okulawula ezi ngozi. Inxalenye elandelayo yeli nqaku malunga ne-asphalt Isingeniso esifutshane kwiindlela zokulawula iingozi zothuli kwizityalo ze-asphalt zinikezelwa.

Ngexesha lokusetyenziswa kwezixhobo zokuxuba i-asphalt, ubuninzi bokungcola kothuli luya kuveliswa. Ukuze kuncitshiswe inani lesizukulwana sothuli, sinokuqala siqale ngokuphuculwa kwesityalo sokuxuba i-asphalt. Ngophuculo loyilo lomatshini lulonke, sinokwandisa ukuchaneka koyilo lwenxalenye nganye yokutywina koomatshini kwaye senze ukuba kwenzeke kangangoko. Izixhobo zitywinwe ngokupheleleyo ngexesha lokuxuba, ukwenzela ukuba uthuli lukwazi ukulawulwa ngaphakathi kwezixhobo zokuxuba. Ukongezelela, kuyimfuneko ukunikela ingqalelo kwiinkcukacha zokuphucula ukusebenza ngaphakathi kwesixhobo kwaye ubeke ingqalelo ekulawuleni ukuchithwa kothuli kuyo yonke ikhonkco.

Ukususwa kothuli lomoya kukwayenye yeendlela zokulawula iingozi zothuli kwizixhobo zokuxuba i-asphalt. Le ndlela yindlela yakudala, esebenzisa kakhulu umqokeleli wothuli lwenkanyamba ukwenza imisebenzi yokususa uthuli. Nangona kunjalo, lo mqokeleli wothuli wakudala unokususa kuphela uthuli oluncinci. Amasuntswana amakhulu othuli, ngoko ke akanako ukuhlangabezana ngokupheleleyo neemfuno zokwenziwa kothuli. Kodwa ngoku uluntu lwenze uphuculo oluqhubekayo kubaqokeleli bothuli lomoya. Iiseti ezininzi zabaqokeleli bothuli lwenkanyamba ezinobukhulu obahlukeneyo zisetyenziswa ngokudibeneyo ukugqiba unyango lothuli lwamasuntswana obungakanani obahlukeneyo.

Ukongeza kwezi ndlela zimbini zingasentla zokulawula uthuli, izityalo zokuxuba i-asphalt zinokuthatha ukususwa kothuli olumanzi kunye nokususwa kothuli lwengxowa. Ukususwa kothuli olumanzi kunomlinganiselo ophezulu wokunyanga uthuli kwaye kunokususa uthuli oluvela ngexesha lokuxuba. Nangona kunjalo, ngenxa yokuba amanzi esetyenziswa njengemathiriyeli ekrwada yokususa uthuli, oko kuya kubangela ukungcoliseka kwamanzi. Ukususwa kothuli lwengxowa yindlela efanelekileyo yokususa uthuli kwisityalo sokuxuba i-asphalt. Yindlela yokususa uthuli lwentonga kwaye ifanelekile kunyango lothuli olunamaqhekeza amancinci.