I-Asphalt eveliswe yi-Asphalt yezityalo i-Asphalt Izityalo ikakhulu zahlulwe ziindidi ezintathu, ezizezi ze-asphalt asphalt, ipetroli i-asphals asphalt kunye ne-asphalt yendalo kunye nendalo.

I-Coal tar Asphalt yimveliso ye-Comenking, oko kukuthi, into emnyama eshiyekileyo emva kokuphamba kwe-tag. Umahluko phakathi kwento kunye netati ehlaziyiweyo kuphela kwipropathi yomzimba, kwaye akukho kumda ocacileyo kwezinye iinkalo. I-Coal tar Asphalt iqukethe izinto ezinje nge-phenanthrene kunye ne-pyrene ekunzima ukuyixhasa. Ezi zinto zinetyhefu. Ngenxa yokuba umxholo wezi zithako zahlukile, iipropathi zeCoal Asphalt ziya kuba zahlukile. Ukongeza, ukuxuba i-asphalt yovelwano yezityalo kuxelela abasebenzisi ukuba utshintsho lobushushu lunempembelelo enkulu kwi-Asphalt yamalahle. Le nto iBrittle ebusika kwaye kube lula ukuthambisa ehlotyeni.
I-Petroleum Asphalt ibhekisa kwintsalela emva kokudibana kweoyile ye-oyile. Ngokubanzi, kuxhomekeka kwinqanaba lokucoca, iPetroleum asphalt iya kuba kwi-allue, imeko eqinileyo okanye iqinile kubushushu begumbi. I-Asphalt ye-Asphalt yendalo igcinwe phantsi komhlaba, kwaye ezinye zikwazi ukwenza imijondolozi yemineral okanye iqokelele kumphezulu we-rust yomhlaba. I-Asphalt ye-Asphalt ingenamandla enetyhefu kuba ikhutshiwe ngokwemvelo kwaye inomdla.