Precast pob zeb hais txog cov pob zeb uas cov khoom siv pob zeb ua los ntawm lub Hoobkas lossis qhov chaw tsim kho (tsis yog qhov chaw tsim khoom kawg). Precast qhob yog nchuav rau lwm qhov dua li ntawm qhov chaw tsim kho zaum kawg. Fibers tuaj yeem siv rau precast qhob ntawm ntau qhov sib txawv thiab cov duab los txhim kho nws txoj kev ntseeg siab thiab toughness tom qab tawg.
