Asphalt sib xyaw cov nroj tsuag xa mus rau cov txheej txheem tiav rau kev sib tsoo ntau lawm ntawm asphalt qhob. Lawv yog cov khoom siv tseem ceeb rau kev tsim kho ntawm kev nthuav dav, kev loj hlob ntawm cov kev loj, cov kev tsheb dav hlau, tshav dav hlau thiab chaw nres nkoj hauv kuv lub tebchaws. Rau cov hom khoom siv no, muaj ntau yam xav tau xav tau thaum nws siv. Kab lus no yuav qhia luv luv qhia qhov uas cov kev cai tshwj xeeb yuav tsum tau ua.

Thaum siv cov nroj tsuag li asphalt sib tov, ua ntej txhua tus, nws xav tau kev ruaj khov zoo. Yog tias tsis muaj qhov ruaj khov zoo, cov khoom siv asphalt sib xyaw yuav tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm txoj haujlwm ntawm cov kev xav tau lossis ntau lawm. Rau kev siv kev siv, ntsuas ntsuas yuav tsum ua asphalt ua yog nruj me ntsis thiab meej. Tsuas yog tsim nyog asphalt qhob cij qhob qhob ua rau txoj kev kev tsim kho kom haum raws li qhov ua tau tiag tiag. Yog li ntawd, qhov ruaj khov ntawm cov asphalt sib tov yog qhov tseem ceeb heev.
Thib ob, cov cai rau asphalt tov tsob nroj thaum siv nws yog qhov uas yuav tsum tau yooj yim, thiab kev ua haujlwm tag nrho yuav tsum tau txo kom ntau li ntau tau. Qhov no tuaj yeem txuag tau ntau yam ntawm kev nqis peev ntau thaum lub sijhawm ua haujlwm thiab txuag cov nqi sib raug zoo. Txawm hais tias nws yooj yim, nws tsis txhais tau tias cov thev naus laus zis ntawm cov asphalt sib tov cog cov nroj tsuag kom txo qis.
Qhov saum toj no yog qhov yuav tsum tau hais tias aspelt sib tov cog yuav tsum tau ntsib thaum nws siv. Vim tias yog tias txhua cov khoom siv xav tau nws cov kev ua haujlwm ua haujlwm kom ua tiav cov nyhuv cov nyhuv, cov khoom siv yuav tsum muaj cov xwm txheej sib raug zoo. Nws yuav tsum yog ib qho tsim nyog thiab yooj yim cov khoom siv kom ntseeg tau tias ua tau zoo thiab ua haujlwm zoo ntawm kev ua haujlwm.