Asphalt produced by asphalt mixing plants is mainly divided into three types, namely coal tar asphalt, petroleum asphalt and natural asphalt.

Cual Tal Asphalt ke sehlahisoa sa ho sokela, ka hona, ntho e ntšo e setseng kamora ho khetholla ha tar. Phapang lipakeng tsa ntho ena le terata e hloekisitsoeng e le feela linthong tse ling tsa 'mele,' me ha ho moeli o totobetseng ka likarolo tse ling. Cunanthrene e joalo ka lintho tse kang Phenanthrene le Pyrene hoo ho thata ho khetha. Lintho tsena ke chefo. Hobane litaba tsa metsoako ena lia fapana, thepa ea makhopho a mashala asphalt le eona e tla fapana. Ntle le moo, bahlahisi ba semela ba kopanyang ba bolella basebelisi hore liphetoho tsa mocheso li na le tšusumetso e kholo ea makhopho a mashala. Ntho ena e na le Brittle mariha mme ho bonolo ho nolofatsa hlabula.
Petroleum Asphalt e bua ka masala ka mor'a ho felisoa ha oli ea oli ea ho seroa. Ka kakaretso, ho latela maemo a ho heletsa, Petroleum Asphalt e tla ba mokelikeli oa metsi, o tiile kapa o tiile ka mocheso oa kamore. Asphalt ea tlhaho e bolokiloe ka sekhukhu, 'me ba bang ba ka baka likarolo tsa liminerale kapa ba bokellaleng holim' a lefatše. Asphalt ea tlhaho hangata ha e na lintho tse chefo hobane ka tlhaho e mouoane 'me e oxid.