Raws li cov khoom siv tseem ceeb rau kev siv asphalt, asphalt sib xyaw cog qoob loo yuav siv ntau txoj haujlwm kev tsim kho vaj tshuab. Txawm hais tias muaj ntau txoj kev txhim kho hauv kev ua tau zoo thiab kev ua tau zoo ntawm cov cuab yeej, nws cov teeb meem muaj kuab paug tseem loj heev. Pom tseeb, qhov no tsis sib xws nrog peb cov kev tiv thaiv ib puag ncig thiab kev txuag hluav taws xob. Kuv xav tias muaj ib qho tshwj xeeb ib puag ncig asphalt tov tsob nroj?

Ntawm chav kawm, txawm tias tus nqi ntawm ib puag ncig ua phooj ywg zoo li tsob nroj yuav muaj ntau dua vim nws yog kev tiv thaiv ntawm lub zog txuag thiab kev tiv thaiv ib puag ncig. Ua ntej, cia saib ntawm cov qauv ntawm cov khoom siv ib puag ncig no. Nws qhov nyuaj yog vim muaj ntau ntawm cov cheebtsam, suav nrog cov tshuab ua pob, tshuab hluav taws xob, hluav taws xob tswj hwm, tswj hluav taws xob, plua plav chav, thiab lwm yam.
Cov feem no tau sib xyaw ua ke rau hauv cov txheej txheem kaw tag nrho, uas tuaj yeem txo cov hmoov av qias neeg thiab cov suab nrov. Lub kaw lus tshiab tuaj yeem ua kom paub meej tias cov asphalt yog tusyees tusyees, uas yog ib txwm muaj ntau dua rau nws siv.