I ka hana ʻana a me ka mālama ʻana i ke alanui, e hoʻopau ʻia ka nui o ka pōhaku, asphalt, a me ka wahie, a e hana ʻia ka nui o nā ʻōpala a me nā ʻōpala lepo. Ma lalo o ke kumu o ke kulekele "palua kalapona", e hōʻemi ana i ka hoʻokuʻu ʻia ʻana o ke kinoea, ʻo ka hana hou ʻana i nā mea asphalt kahiko ʻo ia wale nō ke ala e hana ʻia ai ke alanui a me ka mālama ʻana e hoʻokō i ka pahuhopu maʻamau o ka neutrality carbon. Ke ʻimi nei ke Aupuni Kāpena ʻo Xuchang i nā ala e hoʻonui ai i ka hoʻohana hou ʻana i ka Reclaimed Asphalt Pavement (RAP), no laila ua kūʻai ke Aupuni i kahale hana hoʻomeamea wela.

Mea kanu Asphalt Hana HouHe ʻano hou ia o ka mea kanu hui ʻana i ka asphalt me ​​ka hoʻolālā holomua, ka mea nui e hana ana i ka asphalt hoʻoheheʻe wela wela, hiki ke hoʻokō i ka hana hou ʻana o ka asphalt concrete. ʻO ka wili ʻana a me ka hōʻiliʻili ʻana i ka ʻōpala asphalt hui ʻia mai ka luhi ʻaʻole hiki ke hoʻokō ʻia ka asphalt pavement, ma hope o ka kānana ʻana, ka wela, ka mālama ʻana a me ke ana ʻana, hānai iā ia i loko o ka hui ʻana o ka asphalt hui ʻana i nā mea kanu e like me nā ʻano like ʻole, e hui like me nā mea puʻupaʻa e hana maikaʻi i ka hui asphalt.