Ibimera bivanze bya Ashalt bigira uruhare runini mukubaka imihanda mugihugu cyanjye. Ubwiza bwibi bikoresho bigira ingaruka kumushinga nubwiza bwumushinga. Ibi bikoresho nigikoresho cyo gutanga beto asfalt hamwe nibyiza byinshi, ariko amakosa amwe azakomeza guhura mugihe cyo gukoreshwa. Iyi ngingo izasobanura muri make ibibazo bisanzwe byibiti bya asfalt bivanga nibisubizo bihuye.

Imwe mu makosa asanzwe ya asfalt yo kuvanga Asfalt ni kunanirwa kw'igikoresho gikonje. Muri rusange, kunanirwa kw'ibikoresho bikonje bivuga ikibazo cyo guhagarika umukandara. Impamvu nyamukuru yo kumenya iyi ngingo nuko hariho ibikoresho bibisi mubikoresho byubukonje, bituma umutwaro ufite ingaruka cyane kumukandara mugihe ugaburira, bityo igikoresho gikonje kizahagarika gukora kubera kurenza urugero. Igisubizo cyiki kibazo nukureba ko umubare wibikoresho bibisi bibitswe mubikoresho byo kugaburira birahagije.
Kunanirwa kwivanga bifatika byigihingwa cya asfalt nabyo nimwe mubibazo rusange. Muri rusange, biterwa no kurenga kukazi gatera urusaku rudasanzwe muri mashini. Igisubizo cyiki kibazo nukugenzura buri gihe kugirango wemeze niba hari ikibazo. Niba hari, kubyara bihamye bigomba gusimburwa.