Thawj qhov tseem ceeb yog kom paub txog cov kev taw qhia ntawm txoj kab kev tsim kho, vim hais tias kev thauj mus los ntawm asphalt ncaj qha cuam tshuam rau qhov zoo ntawm asphalt, yog li thaum tsim lub asphalt av sib tov chaw nres tsheb, nws yuav tsum tau txiav txim siab kom ua tau raws li qhov xav tau ntawm cov khoom siv. qhov chaw. Kev faib tawm ntawm asphalt yuav tsum tau lees paub tag nrho raws li kev tsim qauv kos duab los pab txhawb qhov chaw ntawm thaj chaw kwv yees ntawm asphalt sib xyaw cov nroj tsuag.

Lub ntsiab lus thib ob yog kom nkag siab thiab paub cov ntsiab lus ntawm kev sib xyaw ntawm kev tsim kho chaw nres tsheb, suav nrog dej, hluav taws xob thiab qhov chaw hauv pem teb; qhov kawg taw tes yog hais txog ib puag ncig ib puag ncig ntawm qhov chaw tsim kho. Txij li thaum asphalt mixing cog yog lub hauv paus ua haujlwm nrog kev siv tshuab ua haujlwm siab, cov pa phem xws li plua plav thiab suab nrov yuav hnyav dua. Qhov no xav kom thaum xaiv ib qhov chaw, peb yuav tsum tau sim kom tsis txhob muaj thaj chaw nyob, tsev kawm ntawv, chaw yug me nyuam thiab lwm qhov chaw uas tib neeg thiab tsiaj txhu muaj ntau ntau, kom txo tau qhov cuam tshuam ntawm ib puag ncig ib puag ncig kom ntau li ntau tau.