Asphalt yog cov khoom tseem ceeb rau kev tsim txoj kev tsim vaj tse, thiab kev sib tov ntawm asphalt yog qhov tseem ceeb heev. Asphalt sib xyaw cov nroj tsuag tuaj yeem tsim cov khoom sib xyaw asphaltures, hloov asphalt sib tov, thiab xim asphalt sib tov. Cov sib xyaw ua ke no tuaj yeem siv rau kev ua haujlwm, tshav dav hlau, chaw nres nkoj, thiab lwm yam.

Asphalt sib xyaw cov nroj tsuag tuaj yeem faib ua ob hom raws li kev tsiv teb tsaws: Txawb thiab tsau. Txawb sib xyaw ntawm cov nroj tsuag kom haum rau kev tsim kom muaj cov kev ua kom qis-qib thiab ua haujlwm ntawm cov kev thaj chaw deb vim lawv lub zog thiab kev yooj yim. Txoj kev ua haujlwm no yog lub zog zoo xwb. Kev sib xyaw ua kom zoo rau cov nroj tsuag kom haum rau cov khoom siv high-qib uas yuav tsum muaj cov khoom siv nyiaj ntau ntawm cov khoom siv asphalt ntau, thiab cov kev xav tau loj, yog li ua haujlwm tau zoo. Txawm hais tias nws yog lub xov tooj txawb lossis kho cov khoom siv txias, cov khoom siv hluav taws xob, cov khoom siv kub, cov khoom siv kub yuav tsum tau tsau rau ntawm cov pob zeb ua ke. Ua rau muaj kev ua haujlwm siab thiab cov txiaj ntsig siab muaj txiaj ntsig ntawm kev sib xyaw zoo tshaj plaws, kev tiv thaiv muaj tseeb, kev tiv thaiv ib puag ncig thiab txuag hluav taws xob.