Amagana bitumen yakozwe nibikoresho byo kuvanga Ashalt aratandukanye cyane, ariko imvura ibaho mugihe cyo kubika. Ibi nibisanzwe? Niki gitera iki kintu?
Mubyukuri, nibisanzwe kuri bitumen kwishima mugihe kibaho, kandi ntigifatwa igihe cyose ibisabwa byujujwe. Ariko, niba itujuje ibisabwa bikoreshwa, birashobora kuvurwa nuburyo nko gutandukana namazi. Impamvu ya bitumen is kubera ko ubucucike bw'amazi ari gito, bitera kubyutsa.

Impamvu yo kubona amavuta ahari hejuru ya bitum ni ukubera ko hari byinshi bitukura mugihe cyimikorere ya eduli. Nyuma yuko ibibyimba bimaze guturika, baguma hejuru, bikora stink yamavuta. Niba ubuso bwamavuta areremba ataribyibushye cyane, kangura mbere yo gukoresha kubicana. Niba nyuma, ugomba kongeramo umukozi ukwiye cyangwa ubyutsa buhoro kugirango ukureho.