Tshaj tawm tshuab yog ib txheej txheej txheej txheej siv los tsim kom tsim cov haujlwm saum npoo av. Cov qauv yooj yim yog kom xub kis tau qhov tsim nyog li asphalt bictle loj ntawm cov khoom siv asphalt, thiab tom qab ntawd yog li 3 ceg
Tshaj tawm cov thev naus laus zis muaj cov kev ua haujlwm zoo tshaj plaws thiab cov txheej txheem kev tsim kho, siv tau yooj yim, yog li cov thev naus laus zis tau siv nyob hauv Europe thiab Asmeskas.

Tshaj Tawm Tshuab yog tsim nyog rau:
1. Kev Txij Nkawm Txij Nkawm
2. Cov Kev Coj Taug Kev Tshiab
3. Tshiab nruab nrab thiab lub teeb tsheb khiav saum npoo
4. Kev Txhim Kho Txheej Txheem Ua Haujlwm
Kev ua txuj ci ntawm chip foob:
1. Cov khoom siv dej zoo
2. Muaj peev xwm deformation muaj peev xwm
3. Kev ua tau zoo tshaj plaws los ntawm kev ua tau zoo
4. Tus nqi qis
5. Ceev Kev Tsim Kho Ceev
Cov hom binders siv rau chip foob:
1. Diluted asphalt
2. Emulsified asphalt / hloov kho emulsified
3. Hloov asphalt
4. Roj hmab hmoov asphalt