Lub vijtsam yog ib qho ntawm cov cheebtsam hauv asphalt tov cog thiab tuaj yeem pab cov ntaub ntawv tshuaj ntsuam. Txawm li cas los xij, Mesh qhov ntawm lub vijtsam feem ntau thaiv thaum lub sijhawm ua haujlwm. Kuv tsis paub tias qhov no yog vim yog lub vijtsam lossis cov khoom siv. Peb yuav tsum nrhiav thiab tiv thaiv nws.

Tom qab kev soj ntsuam thiab kev txheeb xyuas cov txheej txheem ua haujlwm ntawm asphalt sib tov cog, nws tuaj yeem txiav txim siab tias cov npuaj teg ntawm lub vijtsam me me. Yog tias cov khoom siv me me yog qhov loj me ntsis, lawv yuav tsis muaj peev xwm dhau los ntawm lub vijtsam du thiab thaiv yuav tshwm sim. Ntxiv rau qhov laj thawj no, yog tias cov pob zeb uas muaj ntau cov pob zeb loj lossis cov koob-zoo li ya ya ri muaj ze rau lub vijtsam, lub qhov screen yuav txhaws.
Hauv qhov no, pob zeb pob zeb yuav tsis raug tshuaj xyuas tawm, uas yuav cuam tshuam rau kev sib tov sib xyaw, thiab thaum kawg ua rau qhov zoo ntawm asphalt sib xyaw cov khoom tsis tau raws li cov cai. Txhawm rau kom zam dhau qhov kev tshwm sim no, sim siv cov hlau xaim kauj ruam braided nrog cov kev ua kom zoo nce qhov screen dhau tus nqi thiab xyuas kom meej li qhov zoo ntawm asphalt.