Mubisanzwe, gukora ibishishwa bya asfalt nugushyira igisubizo cyimisabune yakozwe namazi, nibindi. Hanyuma uyitontoma ku ruganda rwa colloid hamwe na asfalt yo kogosha no gusya kubyara asfalt.

UBURYO BWO GUTEGURA BY'UMUGORE BY'UMUSOBANURO:
1. Igikorwa cyo kubyara cyambere hanyuma gihinduka, kandi ubanze ukoreshe ashalt kugirango ugaragaze asfalt, hanyuma wongere impinduka kuri ashalt ya ashalt kugirango ahinduke asfalt.
2. Guhindura no kumara icyarimwe, ongeramo asfalt ya emera na modifier base ku ruganda rwa colloid, hanyuma ubone ashalt yahinduwe mu gukinisha no gusya.
3. Inzira yo guhindura mbere hanyuma igashyiraho amazina, abanze yongerera asfalt ya base