Bitumen yog cov kua dub thiab cov kua nplaum heev los yog ib daim ntawv ntawm cov roj av. Nws tuaj yeem pom hauv cov pob zeb hauv av ntuj. Kev siv lub ntsiab ntawm asphalt (70%) yog nyob rau hauv kev tsim kho, raws li ib tug binder los yog nplaum rau asphalt pob zeb. Nws lwm yam tseem ceeb siv yog nyob rau hauv asphalt waterproofing khoom, nrog rau cov vov tsev cov ntaub ntawv noo noo-pov thawj rau sealing ca ru tsev.

Cov txheej txheem kev sib xyaw asphalt yog tsim los ntawm kev sib xyaw granite aggregates thiab asphalt kom tau txais kev sib xyaw asphalt. Lub resulting sib tov yog dav siv raws li txoj kev paving khoom. Feem ntau ntawm cov txheej txheem lub zog yog siv rau ziab thiab cua sov cov aggregates. Tam sim no Sinoroader Group muab cov cim tshiab ntawm asphalt sib xyaw cov nroj tsuag uas ua tau raws li txhua qhov kev xav tau niaj hnub no rau kev sib raug zoo ntawm ecological, kev ntseeg tau ntawm kev ua haujlwm, kev tsim khoom zoo asphalt. Txoj cai zoo yog ib qho ntawm cov ntsiab lus tseem ceeb ntawm kev lag luam.
Sinoroader Group siv cov thev naus laus zis tshiab thiab cov qauv txheej txheem, hloov kho raws li cov neeg siv khoom xav tau, cov kev xav tau uas ua rau nws muaj peev xwm tsim cov khoom lag luam zoo thiab ua kom tau raws li cov neeg siv khoom xav tau: muag khoom ntawm tus nqi tag nrho, cov khoom qub qub thiab cov khoom siv, ua ke, commissioning thiab kuaj pom qhov tsis xws luag, ua qhov kev lees paub, kho tshiab cov khoom tsim thiab kev cob qhia hauv xyoo dhau los.