A yayin aikin gina titi da gyaran hanya, za a yi amfani da babban dutse, da kwalta, da man fetur, sannan za a samar da tarkacen iskar gas da sharar kasa. A karkashin manufar "carbon ninki biyu", rage fitar da iskar gas mai sharar gida, Sake amfani da tsofaffin kayan kwalta ita ce hanya daya tilo da aikin gine-gine da kiyayewa ya kamata su bi domin cimma manufa daya ta tsaka tsaki na carbon. Gwamnatin Karamar Hukumar Xuchang tana neman hanyoyin da za a inganta sake amfani da Pavement Kwalta (RAP), don haka Gwamnati ta sayizafi kwalta sake amfani shuka.

Tushen Kwalta Mai Zafisabon nau'in shukar kwalta ne mai hadewa tare da ingantaccen tsari, galibi yana samar da kwalta mai zafi na sake amfani da tsire-tsire, wanda zai iya samun nasarar sake amfani da simintin kwalta. Nika da tattara sharar kwalta cakude daga gajiya kasa kwalta Pavement zuwa aiwatar, bayan screening, dumama, ajiya da kuma aunawa, ciyar da shi a cikin mahautsini na kwalta shuka shuka bisa ga daban-daban rabbai, a gauraye ko'ina da budurwa kayan don samar da kyau kwarai kwalta cakuda.