Taw qhia rau Asphalt sib xyaw cog cov khoom siv asphalt yog ib qho uas muaj nyob hauv peb lub nroog loj, tshwj xeeb yog cov txheej txheem ntawm cov txheej txheem ntawm nroog loj tsim. Raws li ib qho tseem ceeb ntawm cov khoom ua haujlwm saum npoo av, qhov kev thov rau kev siv yog tus siab. Tsuas yog siv cov yam ntxwv zoo dua cov yam ntxwv ua tau zoo tuaj yeem pab tau zoo. Asphalt sib xyaw ua ke yog cov khoom lag luam uas yuav tsum muaj kev koom tes nrog kev tsim khoom thiab siv hom khoom no. Nrog nws tus kheej kev ua tau zoo heev, nws tau zoo dua nthuav dav nyob rau hauv kev txhawb nqa kev lag luam uas twb muaj lawm. Kev sib koom tes ntawm kev siv sab nraud siv kuj yog qhov tseem ceeb ntawm cov muaj ntau yam yuav tsum ua haujlwm zoo.

Raws li cov yam ntxwv ntawm cov khoom lag luam xws li asphalt, nplawm mus cua sov thiab nplawm yuav tsum khaws nws hauv lub xeev uas yog qhov tsim nyog rau kev thauj mus los thiab siv. Lub chaw nres tsheb asphalt sib xyaw ntau dua li qhov no, vim tias hom khoom no yuav ua kua thaum qhov kub sab nraud poob. Raws li cov xeeb ceem no, cua sov ruaj khov thaum siv yuav ua rau muaj kev pab rau kev thauj mus los thiab siv tau tiag tiag. Kev siv cov khoom siv no yog qhov tseem ceeb tshaj plaws los pab peb lub nroog loj tsim kev tsim kho kom muaj kev txhim kho zoo dua. Kev tswj xyuas qhov tseeb ntawm cov kev xav tau sab nraud
Peb lub nroog loj tsim kho tau tuaj yeem txhawb nqa cov cuab yeej ua tau zoo. Asphalt sib tov cog ua rau muaj kev yooj yim dua rau qhov kev tsim kho hauv nroog loj hauv nroog loj kawg ntawm kev siv nyiaj ntawm kev siv nyiaj. Nws tseem xav tau cov yam ntxwv xav tau uas ua rau tag nrho cov khoom siv siv cov txiaj ntsig siv tau siv thiab ua kom zoo siv cov ncauj lus kom ntxaws. Nws yuav pab tau ntau dua rau kev nthuav qhia hluav taws xob tiag, uas yog ib qho tseem yog nruab nrab ntawm ntu.