Bitumen ni umukara kandi ufite amabara menshi cyane cyangwa igice cya peteroli. Irashobora kuboneka mubutare busanzwe. Ikoreshwa ryingenzi rya asfalt (70%) ni mukubaka umuhanda, nkuguhuza cyangwa gufatira kuri beto ya asfalt. Ubundi buryo bukoreshwa cyane ni mubicuruzwa bitangiza amazi ya asfalt, harimo ibikoresho byo gusakara hejuru yubushuhe bwo gufunga ibisenge binini.

Kuvanga umusaruro wa asfalt bigizwe no kuvanga granite agregate na asfalt kugirango ubone ivangwa rya asfalt. Ibivanze bivamo bikoreshwa cyane nkibikoresho byo gutunganya umuhanda. Byinshi mubikorwa byingufu zikoreshwa mukumisha no gushyushya igiteranyo. Ubu Itsinda rya Sinoroader ritanga ibisekuru bishya bivangwa na asfalt byujuje ibyangombwa byose bigezweho kugirango ibidukikije bihuze, kwizerwa mubikorwa, gukora asfalt nziza. Politiki nziza nimwe mu ngingo zingenzi zumushinga.
Itsinda rya Sinoroader rikoresha ikoranabuhanga rishya nuburyo bwuburyo bwuburyo bukoreshwa, risubiza byimazeyo ibyifuzo byabaguzi, ibisabwa bituma bishoboka gukora ibicuruzwa byujuje ubuziranenge kandi byujuje ibyifuzo byabakiriya: kugurisha ibikoresho kubiciro byuzuye, ibikoresho byumwimerere nibikoreshwa, gukora inteko, gutangiza no gutahura inenge, gukora garanti, kuvugurura uruganda rutanga umusaruro na gari ya moshi mumyaka yashize.