Asphalt sib tov ua nroj tshuag cog khoom siv tau sib txawv, thiab cov kev daws teeb meem kuj txawv. Piv txwv li, ib qho ntawm cov teeb meem asphalt ntawm asphalt sib tov khoom yog tias cov seem yog furigued thiab puas. Nyob rau lub sijhawm no, cov qauv uas cov tuam ntxhab yuav tsum tau ua yog pib ntawm kev tsim cov khoom.

Asphalt sib xyaw ua ke cog khoom lag luam tsim khoom lag luam tsim khoom lag luam ua kom tiav ntawm qhov chaw, lossis los lees txais ib lub hom phiaj los ua kom tiav lub hom phiaj ntawm cov ntu. Carburizing thiab quenching kuj tseem siv tau los txhim kho kev ua haujlwm ntawm asphalt tov khoom siv. Cov hau kev no tuaj yeem txo cov nyhuv ntawm kev nkees thiab kev puas tsuaj.
Ntxiv nrog rau kev qaug zog thiab kev puas tsuaj ntawm qhov chaw, asphalt sib xyaw nroj tsuag tseem yuav ntsib cov xwm txheej ntawm qhov kev puas tsuaj los ntawm kev sib txhuam. Lub sijhawm no, cov tuam ntxhab yuav tsum sim siv cov khoom hnav-resistant, thiab tib lub sijhawm, lawv yuav tsum tau sim ua kom muaj kev sib txhuam thaum tsim cov khoom siv asphalt. Yog tias cov khoom siv tau ntsib qhov chaw puas tsuaj los ntawm corrosion, tom qab ntawd cov neeg siv tuaj yeem siv cov khoom siv corrosion-resistant cov ntaub ntawv xws li qhov chromium thiab zinc rau hauv cov hlau seem. Hom no tuaj yeem tiv thaiv qhov chaw ntawm kev xeb.