Asphalt yamitundu, yomwe imadziwikanso kuti simenti yamitundu, ndi simenti yomwe imatsanzira zigawo za phula la petroleum ndipo imasinthidwa ndikuphatikiza utomoni wamafuta ndi SBS modifier ndi zinthu zina zama mankhwala. Phula lokhalo silikhala lamitundu kapena lopanda utoto, koma lofiirira wakuda, m'zaka zaposachedwa, limatchedwa asphalt wachikuda chifukwa cha mayendedwe amsika. Pakali pano, China wachikuda phula konkire pavements akhoza kugawidwa mu mitundu iwiri ikuluikulu: mtundu woyamba aumbike pogwiritsa ntchito mandala kapena translucent phula binder monga binder, ndiyeno kuwonjezera inorganic inki kusakaniza phula; mtundu wachiwiri ndi Wopangidwa ndi simenti yowonekera kapena yowoneka bwino. Kenako amapangidwa ndi kusakaniza zachilengedwe achikuda mchere zipangizo monga aggregates. Ndiye mawonekedwe a miyala ya konkire ya asphalt ndi yotani?

Kongoletsani mzindawu, konzani misewu, ndikuwonetsa mawonekedwe akutawuni. Amagwiritsidwa ntchito makamaka m'misewu ya oyenda pansi, malo ozungulira, mabwalo, mapaki, misewu ndi malo ena. Zimagwirizana ndi udzu wobiriwira wozungulira, mitengo, maluwa, ndi zina zotero, motero zimakongoletsa chilengedwe ndikupatsa anthu lingaliro la kalembedwe. Sangalalani ndi kukongola. Lili ndi ntchito yokonza ndi kuyendetsa magalimoto, ndipo amagwiritsidwa ntchito makamaka kusiyanitsa magawo a misewu ndi misewu yokhala ndi ntchito zosiyanasiyana kuti apititse patsogolo kuzindikira kwa msewu, kuchuluka kwa magalimoto pamsewu ndi chitetezo chamsewu. Ili ndi ntchito yabwino yamsewu. Mothandizidwa ndi kutentha kosiyanasiyana ndi malo akunja, kukhazikika kwake kwa kutentha kwapamwamba, kukana kuwonongeka kwa madzi ndi kukhazikika kwabwino kwambiri, ndipo sizikuwoneka kufooka, kupukuta filimu ya asphalt, ndi zina zotero, ndipo kumakhala ndi mgwirizano wabwino wa mkaka ndi wosanjikiza wapansi. . Mtunduwu ndi wowala komanso wautali, sumatha, ukhoza kupirira kutentha kwa 77 ° C ndi kutentha kwa -23 ° C, ndipo ndi kosavuta kusunga. Pokhala ndi mphamvu yotulutsa phokoso, matayala a galimoto sangapange phokoso lamphamvu chifukwa cha kupanikizika kwa mpweya pamene akugudubuza pa liwiro lalikulu pamsewu, komanso amatha kuyamwa phokoso lina kuchokera kunja. Imakhala ndi kusungunuka bwino komanso kusinthasintha, kumveka bwino kwa phazi, koyenera kuyenda ndi okalamba, ndipo imakhala ndi ntchito yabwino yotsutsana ndi kutsetsereka m'nyengo yozizira.