Lub luag haujlwm ntawm asphalt sib tw kis tau yog mus kis cov khoom siv asphalt qhob noom pob zeb ua ke, sib sau ua ke li asphalt koom ua ke lossis asphalt qhob txheej saum npoo av. Pavers tuaj yeem yog kom cov tuab, dav, camer, flatness thiab compactness ntawm paving txheej. Yog li ntawd, nws tau siv dav hauv asphalt qhob ua haujlwm ntawm txoj kev loj, chaw hauv nroog, loj thauj khoom, chaw nres tsheb thiab tshav dav hlau thiab lwm txoj haujlwm. Nws kuj tseem siv tau rau hauv cov kev ua haujlwm nthuav dav ntawm cov ntaub ntawv ruaj khov thiab qhuav nyuaj casas cov ntaub ntawv. Qhov zoo ntawm asphalt sib xyaw sib kis ncaj qha txiav txim siab qhov zoo thiab kev pab cuam lub neej ntawm txoj kev
