Umukiriya wacu muri Philippines yaguze urutonde rwa HMA-D60
Kuvanga ingoma ya asfalt. Kugeza ubu, ingoma ishyushye ivanze na asfalt ikunzwe cyane kubakiriya kubera igiciro cyayo cyo kubungabunga.
Ubwoko bw'ingoma
Ibimera bivanze bishyushyebiroroshye gukora kandi birashobora gukomeza gutanga asfalt beto. Sisitemu yo kugenzura ifite ubusobanuro buhanitse, kwizerwa gukomeye, n'imikorere ihamye; ifata ubutaka buke, yihuta mugushiraho, byoroshye gutwara, kandi irashobora kubyara mugihe gito nyuma yo kwimurwa.
