Muhupenyu hwezuva nezuva, bhitumini yekushandura chirimwa inowanzoshandiswa nesu. Ndechipi chikonzero chekuchengetedza simba nyore kana uchiishandisa? Zvadaro, vashandi vedu vachakupa sumo pfupi. Ndinovimba ichakubatsira iwe kunzwisisa chigadzirwa.

Bitumen inogadziridza michina ine yakanaka kugadzikana kwekupisa, yakaderera tembiricha crack resistance, kudzikiswa kwetembiricha uye humwe hunhu. Muzvinhu zvakawanda, bhitumini yekushandura midziyo ine mabhenefiti makuru pane mamwe bhitumini midziyo.
Iyo parafini kana peturu zviri mubhitumini yakanyungudutswa inogona kusvika 50%, nepo yakagadziridzwa bhitumini midziyo ine 0 ~ 2%. Aya maitiro ekuchengetedza ane kukosha kwakakosha mukugadzira uye kushandiswa kwemafuta machena. Chete nekuwedzera mwenje wemafuta anonyungudutsa kuderedza viscosity mwero webhitumini, bhitumini inogona kudururwa nekupararira, uye zvinotarisirwa kuti mafuta akareruka mushure mekushandisa anogona kubuda mumhepo.
Bitumen inogadziridza zvidyarwa zvinokurudzira kuti diki-nzvimbo emulsion application inogona kudururwa uye kuparadzirwa nemaoko, sediki-nzvimbo yekugadzira gomba basa, crack filler, nezvimwewo, uye zvidiki zvemisanganiswa inotonhora inongoda midziyo yekutanga. Semuenzaniso, gaba rekudiridza rine baffle nefoshoro rinogona kushandiswa kunama nekugadzirisa nzvimbo diki dzinenge dzakatsemuka, uye bhitumini inoshandura michina inoshandisa nzira yekudurura makomba kuzadza makomba munzira. Zvikumbiro zviri nyore uye zviri nyore.