cov oxidized bitumen lag luam tshaj tawm kev kwv yees kev cog lus kev loj hlob thiab kev loj hlob rau lub sijhawm 2021-2028. Cov 115/15 Daim ntawv tshaj tawm kev tshawb fawb txog kev lag luam nthuav tawm cov ntaub ntawv tseem ceeb hauv cov ntaub ntawv nthuav tawm nrog rau cov kab kos, kab kos, cov lus, thiab cov duab kos kom yooj yim muab cov ncauj lus kom ntxaws txog cov ntaub ntawv. Bitumen muaj 60/70 kev ua lag luam. Daim ntawv tshaj tawm suav nrog kev tshuaj xyuas dav dav ntawm Bitumen kev ua lag luam thiab muab cov ntaub ntawv tseem ceeb ntawm cov qauv tam sim no thiab cov kev tshwm sim, cov neeg tsav tsheb ua lag luam, thiab kev pom kev lag luam los ntawm cov kws tshaj lij kev lag luam.

Daim ntawv tshaj tawm suav txog qhov cuam tshuam ntawm COVID-19 ntawm kev lag luam loj hlob. Txoj kev tshawb no muab kev pabcuam dav dav ntawm qhov cuam tshuam ntawm COVID-19 kis thoob qhov txhia chaw ntawm Bitumen kev ua lag luam thiab nws cov ntu tseem ceeb. Tsis tas li ntawd, nws suav nrog qhov cuam tshuam tam sim no thiab yav tom ntej ntawm tus kabmob kis thoob ntiaj teb thiab muab qhov xwm txheej tom qab COVID-19 los muab kev nkag siab ntau dua ntawm kev hloov pauv hauv kev lag luam thiab cov xwm txheej.

Daim ntawv tshaj tawm muab kev pom dav dav ntawm kev ua lag luam nrog rau kev txheeb xyuas cov txiaj ntsig, kev txheeb xyuas keeb kwm, kev kwv yees ntawm kev lag luam tam sim no, cov hauv kev, kev nce qib hauv kev lag luam, cov khoom tsim, cov tsav tsheb thiab cov kev txwv ntawm kev ua lag luam, thiab cov kev txwv uas yuav tshwm sim nyob rau xyoo tom ntej. . Daim ntawv tshaj tawm kuj suav nrog kev muag khoom thiab kev lag luam kev lag luam tsom xam nrog cov ntsiab lus dav dav ntawm cov neeg tseem ceeb hauv kev lag luam oxidized bitumen.