Izigaba ezitholwayo ekuthuthukisweni kwenqubo yokuvikela yokulungisa i-micro-surfacing
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Izigaba ezitholwayo ekuthuthukisweni kwenqubo yokuvikela yokulungisa i-micro-surfacing
Isikhathi Sokukhipha:2024-05-11
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Eminyakeni yamuva nje, i-micro-surfacing iye yasetshenziswa kabanzi njengenqubo yokulungisa yokuvimbela. Ukuthuthukiswa kobuchwepheshe be-micro-surfacing sekudlule cishe ezigabeni ezilandelayo kuze kube namuhla.
Isigaba sokuqala: i-slurry seal ehamba kancane kanye ne-slurry seal. Phakathi Nohlelo Lwesishiyagalombili Lweminyaka Emihlanu, ubuchwepheshe be-asphalt emulsifier obukhiqizwa ezweni lami babungekho ezingeni, futhi ama-emulsifiers we-slow-crack asekelwe ku-lignin amine ayesetshenziswa kakhulu. I-asphalt e-emulsified ekhiqizwayo iwuhlobo oluhamba kancane futhi oluhamba kancane lwe-asphalt e-emulsified, ngakho-ke kuthatha isikhathi eside ukuvula ithrafikhi ngemva kokubekwa uphawu lwe-slurry, futhi umphumela wokwakhiwa ngemuva kokwakhiwa umpofu kakhulu. Lesi sigaba cishe sisuka ku-1985 kuya ku-1993.
Isigaba sesibili: Ngocwaningo oluqhubekayo lwamanyuvesi amakhulu kanye nezikhungo zocwaningo lwesayensi embonini yemigwaqo emikhulu, ukusebenza kwezifaki-emmuli kuye kwaba ngcono, futhi ukuqhekeka kancane nokumisa ngokushesha ama-emulsifiers we-asphalt aseqalile ukuvela, ikakhulukazi ama-anionic sulfonate emulsifiers. Kubizwa ngokuthi: ukuqhekeka okunensayo kanye nokusetha okusheshayo kwe-slurry seal. Isikhathi sisuka cishe ngo-1994 kuya ku-1998.
Izigaba ezitholwayo ekuthuthukisweni kwenqubo yokuvikela yokulungisa i-micro-surfacing_2Izigaba ezitholwayo ekuthuthukisweni kwenqubo yokuvikela yokulungisa i-micro-surfacing_2
Isigaba sesithathu: Nakuba ukusebenza kwe-emulsifier sekuthuthukile, uphawu lwe-slurry seal alukwazi ukuhlangabezana nezimo ezihlukahlukene zomgwaqo, futhi izidingo eziphakeme zibekwe phambili zezinkomba zokusebenza kwezinsalela zetiyela, ngakho-ke kwavela umqondo we-slurry seal eguquliwe. I-styrene-butadiene latex noma i-chloroprene latex yengezwa ku-asphalt e-emulsified. Ngalesi sikhathi, azikho izidingo eziphakeme zezinto zamaminerali. Lesi sigaba sisukela cishe ngo-1999 kuya ku-2003.
Isigaba sesine: ukuvela kwe-micro-surfacing. Ngemuva kokuthi izinkampani zakwamanye amazwe ezifana ne-AkzoNobel ne-Medvec zingene emakethe yaseShayina, izidingo zabo zezinto zamaminerali kanye ne-asphalt e-emulsified esetshenziswe uphawu lwe-slurry seal yayihlukile kune-slurry seal. Iphinde ibeke izidingo eziphakeme ekukhethweni kwezinto ezingavuthiwe. I-Basalt ikhethwa njenge-mineral material, izidingo ezilinganayo zesihlabathi eziphakeme, i-asphalt e-emulsified eshintshiwe nezinye izimo zibizwa ngokuthi i-micro-surfacing. Isikhathi sisuka ku-2004 kuze kube manje.
Eminyakeni yamuva nje, i-micro-surfacing enciphisa umsindo ibonakala ukuze ixazulule inkinga yomsindo we-micro-surfacing, kodwa uhlelo lokusebenza aluningi futhi umphumela awugculisi. Ukuze kuthuthukiswe inkomba ye-tensile ne-shear yengxube, i-fiber micro-surfacing ivele; ukuze kuxazululwe inkinga yokuncipha kwamafutha omgwaqo wokuqala kanye nokunamathela phakathi kwengxube nomgwaqo wokuqala, i-viscosity-added fiber micro-surfacing yazalwa.
Ekupheleni kuka-2020, imayela eliphelele lemigwaqo emikhulu esebenza ezweni lonke lafinyelela kumakhilomitha ayizigidi ezi-5.1981, lapho amakhilomitha ayi-161,000 avulekele ukugcwala emigwaqweni emikhulu. Kukhona cishe izixazululo ezinhlanu zokuvikela ezitholakalayo zokuhamba ngetiyela:
1. Amasistimu ongqimba ovala inkungu: ungqimba lokuvala inkungu, ungqimba lokuvala isihlabathi, nongqimba oluqukethe inkungu;
2. Uhlelo lokuvala amatshe amatshe: ungqimba lokuvalwa kwetshe le-asphalt olufakwe emulsified, ungqimba olushisayo lokuvala amatshe e-asphalt, ungqimba oluguquliwe lokuvala amatshe e-asphalt, ungqimba lokuvala amatshe enjoloba, ungqimba lokuvala amatshe e-fiber, indawo ecwengiwe;
3. Uhlelo lokuvala uphawu oluludaka: ukuvalwa kodaka, ukuvala uphawu okuguquliwe;
4. Uhlelo lwe-Micro-surfacing: i-micro-surfacing, i-fiber micro-surfacing, ne-viscose fiber micro-surfacing;
5. Isistimu yokubeka eshisayo: isembozo sesendlalelo esincanyana, i-NovaChip ultra-thin wearing layer.
Phakathi kwabo, i-micro-surfacing isetshenziswa kabanzi. Izinzuzo zayo ukuthi ayinayo kuphela izindleko eziphansi zokugcinwa, kodwa futhi inesikhathi esifushane sokwakha kanye nemiphumela emihle yokwelapha. Ingathuthukisa ukusebenza komgwaqo okulwa nokushushuluza, ivimbele ukugeleza kwamanzi, ithuthukise ukubukeka nokushelela komgwaqo, futhi ikhulise amandla okuthwala umgwaqo. Inezinzuzo eziningi ezivelele ekuvimbeleni ukuguga kwendlela yokuhamba ngezinyawo kanye nokwelula impilo yesevisi yokugandaywa kwezinyawo. Le ndlela yokunakekela isetshenziswa kakhulu emazweni athuthukile njengaseYurophu nase-United States kanye naseShayina.