Mugihe cyo kubaka umuhanda no kuyitunganya, hazakoreshwa amabuye manini, asfalt, na lisansi, kandi hazabyara imyanda nini ya gaze n’imyanda. Mu rwego rwa politiki ya "karuboni ebyiri", kugabanya imyuka ihumanya ikirere, Gusubiramo ibikoresho bishaje bya asfalt niyo nzira yonyine yo kubaka umuhanda no kuyitaho bigomba gufata kugirango intego imwe yo kutabogama kwa karubone. Guverinoma y’Umujyi wa Xuchang irashaka uburyo bwo kongera gukoresha ikoreshwa rya Asfalt Pavement (RAP), bityo Guverinoma igurauruganda rushyushye rwa asfalt.

Igiti gishyushye cyongeye gukoreshwani ubwoko bushya bwo kuvanga asfalt hamwe nuburyo bugezweho, cyane cyane butanga ibihingwa-bivanze bishyushye bishyushye byongera asfalt, bishobora kugera ku gutunganya neza beto ya asfalt. Gusya no gukusanya imyanda ivanze na asfalt ivuye mumunaniro yananiwe gutunganya asifalt gutunganya, nyuma yo kuyisuzuma, gushyushya, kubika no gupima, kuyigaburira muvanga uruganda ruvanga asfalt ukurikije ibipimo bitandukanye, kuvanga neza nibikoresho byisugi kugirango bitange ivangwa ryiza rya asfalt.