Iyo simende inoshandiswa mu micro-surfacing yakagadziridzwa emulsified bitumen. Ndeapi maitiro ayo? Ngatitaure nezve nzira yekuvaka ye micro surfacing kutanga. Micro surfacing inoshandisa micro surfacing paver kuparadzira zvakaenzana imwe giredhi yedombo, filler (simende, lime, nezvimwewo), yakagadziridzwa emulsified bhitumeni, mvura uye zvimwe zvinowedzera panzira yenzira muchiyero. Iyi nzira yekuvaka ine zvimwe zvakanakira nekuti iyo yekubatanidza iyo inoshandiswa inogadziridzwa inononoka-inopwanya-inogadzirisa emulsified bhitumini.
Iyo micro-surface ine zvirinani anti-kupfeka uye anti-slip zvivakwa. Kuenzaniswa neyakajairwa slurry sealants, pamusoro peiyo micro-pamusoro ine mamwe magadzirirwo, ayo anogona kuramba kukweshera kwemotokari uye kutsvedza uye kuve nechokwadi chekutyaira. Hwaro hweiyi poindi ndeyekuti simende inoshandiswa mu micro-surfacing inofanirwa kunge iine yakanaka yekubatanidza zvivakwa.
Mushure mekuwedzera ma modifiers kune akajairwa emulsified bhitumeni, zvimiro zvebhitumini zvinovandudzwa, uye kubatanidza kuita kweiyo micro-surface inovandudzwa. Izvi zvinoita kuti mugwagwa mushure mekuvaka uve nekusimba kuri nani. Yakavandudzwa yakakwirira uye yakaderera tembiricha kuita kwepavhu.
Chimwe chinhu chakakosha chekugadzirisa kunonoka-kutsemuka uye kukurumidza-kugadzika emulsified bhitumeni inoshandiswa mukugadzirwa kwe micro-surfacing ndeyekuti inogona kugadzirwa nema mechanical kana manually. Nekuda kwekunonoka kwayo demulsification maitiro, inosangana nezvinodiwa zvekusanganisa zvemusanganiswa. Izvi zvinoita kuti chivakwa chigadzirike, uye nzira yakakodzera yekuvaka inogona kusarudzwa maererano nemamiriro ezvinhu chaiwo, zvichiita kuti chirongwa chekugadzira chemaoko chizadzike.
Uye zvakare, iyo simende zvinhu pane iyo micro surface inewo hunhu hwekukurumidza kuseta. Iyi hunhu inobvumira nzvimbo yemugwagwa kuti ivhurwe kune traffic 1-2 maawa mushure mekuvaka, ichideredza kukanganiswa kwekuvaka patraffic.
Imwe pfungwa ndeyekuti iyo yekubatanidza zvinhu inoshandiswa mukuvaka-micro-surfacing imvura pane tembiricha yekamuri uye haidi kudziyisa, saka inotonhora kuvaka. Izvi hazvisi kungovandudza kushanda kwekuvaka, asiwo kunoderedza kushandiswa kwesimba, izvo zvinoenderana nemafungiro ekuchengetedza simba uye kuchengetedza kwezvakatipoteredza. Kuenzaniswa neyechinyakare inopisa bhitumini yekuvaka, iyo inotonhora yekuvaka nzira ye micro-surfacing haiburitse magasi anokuvadza uye ine zvishoma zvinokanganisa nharaunda nevashandi vekuvaka.
Aya maitiro ndiwo anodiwa kuti ave nechokwadi chekuvaka mhedzisiro uye zvakare anodiwa maitiro. Bhitumini yawakatenga ine emulsified bhitumeni ine zvinhu izvi here?