Yog tias koj txoj kev lag luam yuav tsum tau kub sib xyaw ua ntu zus, tom qab ntawd nws yog qhov zoo dua uas muaj koj tus kheej asphalt tov tsob nroj. Muaj ntau ntau qhov zoo los yuav ib qho asphalt sib tov cog. Qhov no yuav pab koj tswj cov khoom ntawm koj li asphalt sib tov, thiab koj tuaj yeem txuag nyiaj ntau tib lub sijhawm.

Raws li kev yuav cov nroj tsuag li asphalt sib xyaw muaj kev txhawj xeeb, muaj ob peb cov ntsiab lus tseem ceeb los txiav txim siab ua ntej xaiv cov chaw tsim khoom. Piv txwv li, koj tuaj yeem xav txog kev nqis peev hauv cov cuab yeej siv tshiab lossis txawm tias ob txhais tes khoom siv. Zoo hmoo, yuav khoom lag luam tshiab asphalt tov tsob nroj, nws suav nrog kev pab tag nrho ntawm cov qauv tsim khoom thiab yog nyob rau hauv cov qauv kuab paug tshiab. Ib qho ntxiv, cov chaw tsim khoom yuav txhawb koj los ntawm kev teeb tsa no. Ntawm qhov tod tes, kev nqis peev peev rau cov khoom siv thib ob yog ntau tus nqi pheej yig dua, tab sis koj yuav tsum saib rau ib qho uas tsis tau muaj mishandled. Qhov tsim nyog, koj yuav tsum tau yuav nws ncaj qha los ntawm tus tswv. Feem ntau, cov khoom siv thib ob tau teev los ntawm cov neeg sawv cev, thiab koj yuav tau them cov nqi nruab nrab rau ob peb tus neeg sawv cev kom nrhiav tau hom khoom siv tshwj xeeb.
Txawm li cas los xij, lwm yam uas koj yuav tsum tau twv yuav raug twv yuav raug hu tau undoubtedly hom asphalt tov tsob nroj. Feem ntau, koj yuav tsis pom muaj qhov sib txawv ntawm ntau hom, tab sis koj yuav tsum tsom rau lub koob npe nrov ntawm cov khw. Nws tau pom zoo kom yuav ib qho uas yog paub rau cov khoom lag luam zoo. Koj yuav tsum tsis txhob xaiv cov khoom siv pheej yig vim tias cov no feem ntau kim nyob rau hauv ntev. Ib qho ntxiv, koj yuav tsum xav txog tus nqi tswj tau nyab xeeb thiab muaj cov khoom ntxiv.