Ib qho ntawm cov kev ua txhaum ntau dua ntawm asphalt sib tov cog yog qhov tsis ua tiav ntawm cov khoom txias pub khoom siv. Feem ntau hais lus, tsis ua hauj lwm cov khoom noj txias khoom siv hais txog qhov teeb meem ntawm kev hloov ceev cov khoom siv ceev. Qhov laj thawj tseem ceeb rau qhov kev tshwm sim no yog tias muaj cov khoom siv raw dhau los ntawm kev siv khoom txias thaum noj mov vim yog siv dhau.

Kev daws rau cov teeb meem no yog kom ntseeg tau tias tus nqi ntawm cov ntaub ntawv raw hauv lub cim xeeb hauv cov cuab yeej pub mis yog qhov txaus.
Qhov tsis ua hauj lwm ntawm pob zeb ua kev tov khoom ntawm lub asphalt mixing tsob nroj kuj yog ib qho ntawm cov teeb meem sib xws. Feem ntau hais lus, nws yog vim muaj suab nrov txawv txav ntawm lub tshuab tshwm sim los ntawm overload. Kev daws rau cov teeb meem no yog los kuaj xyuas tsis tu ncua kom paub meej tias muaj teeb meem. Yog tias muaj, nws yog qhov tsim nyog los hloov cov kabmob tas.
Nws tseem muaj rau lub vijtsam muaj teeb meem thaum lub sijhawm ua haujlwm ntawm asphalt tov tsob nroj. Rau qhov screen, thaum lub sijhawm ua haujlwm, vim muaj kev sib xyaw ntau dhau ntawm roj hauv qhov sib xyaw, txoj kev saum npoo av tom qab paving thiab dov thiab yob yuav tshwm roj ncuav mog qab zib. Qhov laj thawj tseem ceeb rau cov teeb meem no yog tias lub qhov ntawm lub vijtsam loj, yog li lub sijhawm no, koj yuav tsum xub tshawb xyuas seb puas yog lub vijtsam yog qhov tsim nyog.