(A) rubble:
Pob zeb paver (aggregate spreader) yog ib qhov kev siv machinery. Tusyees pw lub gravel kis tau rau cov roadbed siv machinery. Mas muaj Hopper, cov menyuam, caij ski, zoo li tus v scraper log thiab lwm Cheebtsam, ntxiv rau lub sab panels thiab khiav [1].
(B) ua vaj tse bituminous:
Nyob rau lub asphalt dej hauv kev puag, paving thiab preliminarily compacting thiab leveling lub tshuab homogeneity. Ob leeg tracked thiab wheeled. Los ntawm traction, paving thiab compacting, Ironing yog li ntawm ob tog. Xws li racks, hwj huam pab kiag li lawm, mobile pab kiag li lawm, hoppers, qhov rooj, scraper conveyor, kauv paving thiab tsheb tav xis. Uas yog li tus towing caj npab, compacting mechanism thiab ironing ntaus ntawv (ntawm tus, tus screed regulator, muaj li ntawm camber adjuster thiab rhaub thickness)
