Dị ka ọmụmụ gara aga na nyocha nke ubi, pavement asphalt na-emetụta volatilization, absorption, oxidation, na photochemical mmeghachi omume nke pavement, na asphalt ratio na-ada nke ọma n'okpuru ọnọdụ mbụ ịka nká, na-ebute pavement na-esighị ike ma na-esighi ike. Site na mbibi ọzọ nke asphalt ahụ, pavement na-agafeghị oke na-ekpughe ọdịnaya ya. Pavement asphalt na-abanye n'oge ịka nká n'ihi na ọ na-adọka na ihu igwe na-aga n'ihu, nke a na-ekpuchi nkume ndị dị nta na pavement.

N'oge usoro ịka nká, nrụrụ na ike nhazi nke pavement na-ebelata. N'ikpeazụ, nnukwu nsogbu n'okporo ụzọ na-apụta n'ụdị mgbawa linear, mgbawa ihe mgbawa, oghere na mgbụsị akwụkwọ. Usoro a na-ebelata nke ukwuu viscosity na brittleness, na-amụba ductility na mgbanwe, na-eme ka asphalt na-adịchaghị mfe mgbawa na njọ.
N'adịghị ka ihe mkpuchi mkpuchi nke oge ochie, otu ngwa nke ngalaba nyocha nrụpụta asphalt na-abanye n'ime pavement iji weghachi ma dochie tar na asphalt furu efu n'ihi elu oxidation dị obere karịa asphalt echedoro. Ọ na-emechi ma na-echekwa pavement ahụ pụọ na mmiri, ìhè anyanwụ na ihe ndị na-emetọ kemịkal, na-eme ka ịdịte aka, ndụ dịkwuo mma ma na-ebelata mma nke asphalt. Ndị na-emepụta ihe na-agwakọta asphalt na-echetara gị na nlekọta kwesịrị ekwesị bụ isi ihe na-echebe asphalt site na ihe ndị dị n'èzí nke na-eyi ma na-adọka.