Kuvanga ibihingwa bya asfalt bigizwe na sisitemu nyinshi, buri kimwe gifite imirimo itandukanye. Sisitemu yo gutwika nurufunguzo rwimikorere yibikoresho kandi igira ingaruka zikomeye kumikorere numutekano wibikoresho. Muri iki gihe, tekinoroji y’amahanga ikunze gukoresha sisitemu yo gutwika gaze, ariko sisitemu ihenze kandi ntabwo ibereye ibigo bimwe.
Kubushinwa, sisitemu yo gutwika ikunze gukoreshwa irashobora kugabanywamo muburyo butatu, aribwo bushingiye ku makara, bushingiye kuri peteroli na gaze. Noneho, kubijyanye na sisitemu, hariho ibibazo byinshi byingenzi, cyane cyane ko ivu ririmo ifu yamakara ari ibintu bidashya. Biterwa na sisitemu yo gushyushya ibihingwa bivanga asfalt, ibyinshi mu ivu byinjira mvange ya asfalt. Byongeye kandi, ivu ni acide, izagabanya byimazeyo ubwiza bwimvange ya asfalt, idashobora kwemeza ubuzima bwa serivisi yibicuruzwa bya asfalt. Muri icyo gihe, ifu yamakara yaka buhoro, bityo biragoye gutwika byuzuye mugihe gito, bikavamo ingufu nke ugereranije no gukoresha ingufu.
Ntabwo aribyo gusa, niba amakara akoreshwa nkibicanwa, ubunyangamugayo bushobora kugerwaho kubikoresho gakondo bikoreshwa mugutunganya bigarukira, bigabanya neza neza umusaruro wuruvange. Byongeye kandi, gutwika ifu yamakara munganda zivanze na asfalt bisaba icyumba kinini cyo gutwika, kandi ibikoresho byo kuvunika mucyumba cyaka ni ibikoresho byoroshye, bigomba guhora bigenzurwa kandi bigasimburwa, kandi amafaranga yo kubungabunga ni menshi.
Noneho, niba gaze ikoreshwa nkibikoresho fatizo, igipimo kinini cyo gukoresha kirashobora kugerwaho. Sisitemu yo gutwika irihuta kandi irashobora kubika umwanya munini. Nyamara, sisitemu yo gutwika ivangwa rya asfalt ivangwa na gaze nayo ifite inenge nyinshi. Igomba guhuzwa numuyoboro wa gazi karemano, udakwiriye mubihe aho igomba kuba igendanwa cyangwa akenshi igomba kwimurwa. Byongeye kandi, niba umuyoboro wa gazi karemano uri kure, bizatwara amafaranga menshi yo gushyiraho valve no gushyira imiyoboro hamwe nibindi bikoresho bifasha.
Noneho, tuvuge iki kuri sisitemu yo gutwika ikoresha amavuta ya lisansi nka lisansi? Sisitemu ntishobora kuzigama ibiciro byumusaruro gusa, ariko kandi byoroshye kugenzura ubushyuhe bwamavuta. Sisitemu yo gutwika ivangwa rya asfalt ivangwa n’amavuta ya peteroli ifite inyungu nziza mu bukungu, kandi irashobora no kubona ubushobozi bwo gutwika ikoresheje kugenzura amavuta ya lisansi.