Ibitumen iwuketshezi olumnyama nolubonakala kakhulu noma uhlobo oluqinile lwe-petroleum. Ingase itholakale kumadiphozithi amaminerali emvelo. Ukusetshenziswa okuyinhloko kwe-asphalt (70%) kukwakhiwa komgwaqo, njenge-binder noma i-adhesive for asphalt concrete. Okunye ukusetshenziswa kwayo okuyinhloko emikhiqizweni ye-asphalt yokuvimbela amanzi, okuhlanganisa izinto zokuvikela umswakama zokuphahla ukuze kuvalwe uphahla oluyisicaba.

Inqubo yokukhiqiza i-asphalt yokuxuba i-asphalt iqukethe ukuxuba ama-granite aggregates kanye ne-asphalt ukuze uthole ingxube ye-asphalt. Ingxube ewumphumela isetshenziswa kabanzi njengendlela yokulungisa umgwaqo. Iningi lamandla enqubo asetshenziselwa ukomisa nokushisisa ama-aggregate. Manje iSinoroader Group inikeza isizukulwane esisha sezitshalo zokuxuba i-asphalt ezihlangabezana nazo zonke izidingo zesimanje zokuhambisana nemvelo, ukuthembeka kokusebenza, i-asphalt yekhwalithi yokukhiqiza. Inqubomgomo yekhwalithi ingenye yamaphuzu abalulekile ebhizinisi.
I-Sinoroader Group isebenzisa ubuchwepheshe obusha kanye nezakhiwo ze-methodological, isabela ngokuguquguqukayo ezidingweni zabathengi, izidingo ezenza kube nokwenzeka ukwenza imikhiqizo yekhwalithi ephezulu futhi ihlangabezane ngokugcwele nezidingo zamakhasimende: ukuthengisa imishini ngentengo egcwele, izingxenye eziyisipele zangempela nezinto ezisetshenziswayo, ukwenza umhlangano, ukugunyazwa kanye ukutholwa kokukhubazeka, yenza iwaranti, yenza imboni yokukhiqiza ibe yesimanjemanje futhi uqeqeshe eminyakeni edlule.