Hauv kuv lub tebchaws, feem ntau ntawm cov khoom siv raw siv hauv txoj kev loj yog asphalt, yog li asphalt mixing nroj tsuag kuj tau tsim sai heev. Txawm li cas los xij, nyob rau hauv qhov xwm txheej ntawm kev txhim kho kev lag luam sai hauv kuv lub teb chaws, cov teeb meem ntawm asphalt pavement tau maj mam nce, yog li kev ua lag luam xav tau rau asphalt zoo tau nce siab thiab siab dua.

Muaj ntau yam uas cuam tshuam rau qhov zoo ntawm kev siv asphalt. Ntxiv nrog rau qhov xav tau ntawm asphalt sib xyaw cog cov cuab yeej ua kom tau raws li cov kev cai, qhov piv ntawm cov khoom siv raw kuj tseem ceeb heev. Tam sim no, kuv lub teb chaws cov kev lag luam uas twb muaj lawm qhia tau hais tias qhov luaj li cas ntawm cov asphalt sib tov siv nyob rau hauv lub Upper txheej ntawm txoj kev loj yuav tsis tau ntau tshaj ib nrab ntawm cov thickness, thiab cov aggregate particle loj ntawm nruab nrab asphalt sib tov yuav tsis pub tshaj ob feem peb ntawm cov thickness. ntawm txheej, thiab qhov loj ntawm cov txheej txheem txheej tsis tuaj yeem tshaj li ib feem peb ntawm tib txheej.
Los ntawm cov kev cai saum toj no, nws tuaj yeem pom tau tias yog tias nws yog ib qho tuab ntawm asphalt txheej, yog tias qhov loj me ntawm cov kev xaiv asphalt sib tov yog qhov loj, ces qhov cuam tshuam rau kev tsim kho ntawm asphalt qhob pavement kuj loj heev. Lub sijhawm no, yog tias koj xav ua kom muaj qhov tsim nyog ntawm cov khoom siv raw, koj yuav tsum sim tshuaj xyuas cov ntaub ntawv sib sau kom ntau li ntau tau. Tsis tas li ntawd, cov qauv ntawm cov khoom siv asphalt sib xyaw kuj yog ib qho tseem ceeb uas yuav tsum tau xav txog.
Txhawm rau kom ntseeg tau qhov zoo ntawm txoj kev paving, cov neeg ua haujlwm yuav tsum nruj me ntsis tshuaj xyuas thiab tshuaj xyuas cov ntaub ntawv raw. Kev xaiv thiab kev txiav txim siab ntawm cov khoom siv raw yuav tsum yog raws li qhov yuav tsum tau ua ntawm cov qauv pavement thiab kev siv zoo, thiab tom qab ntawd ua ke nrog cov khoom siv tiag tiag los xaiv cov ntaub ntawv zoo tshaj plaws kom txhua qhov ntsuas ntawm cov ntaub ntawv raw tuaj yeem ua tau raws li qhov yuav tsum tau ua.