Sezvo ini ndisati ndabhadhara zvakanyanya kune inodzosera vharafu muasphalt kusanganisa chirimwa kare, ini handina rubatsiro pamusoro pekutadza kwechigadzirwa ichi. Kutaura zvazviri, kukundikana kwevhavha inodzosera haisi yakaoma zvikuru. Chero bedzi iwe uchiziva zvishoma nezvazvo, iwe uchanyatsoziva maitiro ekuita nazvo?
Kune zvakare mavharuvhu ekudzosera muasphalt kusanganisa zvidyarwa, uye kutadza kwayo hakuna chimwe chinhu kunze kwezvinetso zvakajairika senge kunonoka kudzoreredza, kubuda kwegasi, uye mavharuvhu emagetsi ekutyaira. Ehezve, zvikonzero uye zvigadziriso zvinoenderana neakasiyana dambudziko kuratidzwa kwakasiyanawo. Nokuda kwechiitiko chekusakurumidza kutendeuka kwevhavha inodzokera shure, mazhinji acho anokonzerwa nekusvibiswa kusina kunaka kwevhavha, yakanamatira kana yakakanganiswa zvitubu, mafuta kana tsvina yakanamatira muzvikamu zvinotsvedza, nezvimwewo. Nokuda kweizvi, zvakakosha kutarisa mamiriro e iyo mafuta mhute mudziyo uye viscosity yemafuta ekuzora. Kana pane dambudziko, mafuta ekuzora kana zvimwe zvikamu zvinogona kutsiviwa. Mushure mekunge asphalt musanganisi chirimwa chave chichishanda kwenguva yakareba, vharafu rayo rekudzosera rinowanzo kupfeka yevhavha yepakati seal ring, kukuvadzwa kune tsinde yevharuvhu uye chigaro chevharuvhu, izvo zvinotungamira mukudonha kwegasi muvharuvhu. Panguva ino, nzira chaiyo uye inoshanda yekutarisana nayo ndeyekutsiva rin'i yechisimbiso, dzinde revharuvhu uye chigaro chevharuvhu, kana kutsiva zvakananga vharafu yekudzosera kukurira dambudziko rekudonha.