Zida za asphalt za emulsified zimapereka chidwi chapadera pazochitika zatsatanetsatane
Pali mitundu iwiri ikuluikulu ya njira zosinthira zida za emulsified asphalt: njira yosakanikirana yakunja ndi njira yosakanikirana yamkati. Njira yosanganikirana yakunja ndiyoyamba kupanga zida zoyambira za emulsified asphalt, kenako yonjezerani chosinthira cha polima latex ku zida zoyambira za emulsified asphalt, ndikusakaniza ndi kusonkhezera kuti mupange. The polima emulsion zambiri amaoneka ngati CR emulsion, SBR emulsion zokhudzana akiliriki emulsion, etc. mkati kusanganikirana njira ndi choyamba kusakaniza mphira, pulasitiki ndi ma polima ndi zina zina mu otentha akuda phula. Pambuyo posakanizana molingana ndikupeza momwe zimakhalira pakati pa polima ndi phula wachikuda, phula losinthidwa polima limapezeka. Chotsatira ndi kusinthidwa phula emulsion analengedwa kudzera emulsification luso, ndi polima ambiri ntchito mkati kusanganikirana njira ndi SBS. Ngati phula lachikuda layimitsidwa kwa ola limodzi mutasakaniza, yeretsani pamwamba pa mbiya yosakaniza, onjezerani madzi oyera, ndikupukuta matopewo. Kenako, kukhetsa madzi, kuonetsetsa kuti palibe kudzikundikira madzi mu chidebe kuteteza kusintha Chinsinsi kapena dzimbiri mu ntchito ndondomeko monga webusaiti. Panthawiyi, aliyense amadziwa kumvetsera mwapadera njira zambiri zazing'ono zogwirira ntchito kuti apewe kuwonongeka kosafunikira kwa ntchito zawo.
Njira yogwiritsira ntchito zida za emulsified asphalt:
Kuwonongeka kwapamtunda kwa zida za asphalt ndi madzi ndizosiyana kwambiri, ndipo sizimasokonezana mosavuta pakatentha kapena kutentha kwambiri. Pamene zida za emulsified asphalt zimagwira ntchito zamakina monga centrifugation, kudula, ndi zotsatira, zida za asphalt za emulsified zimasanduka tinthu ting'onoting'ono tomwe timakhala ndi kukula kwa 0.1 ~ 5 μm, ndikugawidwa m'madzi omwe ali ndi surfactant (emulsifier-stabilizer) Pakatikati. , emulsifier akhoza directionally adsorbed pamwamba pa emulsified wachikuda phula zida particles, motero kuchepetsa kukangana interfacial pakati pa madzi ndi achikuda phula, kulola achikuda phula particles kupanga osangalala kugawa dongosolo m'madzi. Zida za emulsified asphalt ndi zida ndi mafuta m'madzi. wa emulsion. Njira yogawa iyi ndi yofiirira, yokhala ndi asphalt wachikuda ngati gawo lobalalika ndi madzi ngati gawo lopitilira, ndipo imakhala ndi madzi abwino kwambiri kutentha. Emulsified asphalt zida ndi zida Mwanjira ina, zida za emulsified asphalt ndi malo amagwiritsa ntchito madzi "kupindika" phula wachikuda, motero amawongolera kutsekemera kwa phula wachikuda.
Emulsified asphalt zida zotentha zimasungunula phula wachikuda ndikugawa tinthu ting'onoting'ono ta phula mu njira yamadzi yokhala ndi emulsifier kuti ipange phula lamadzi. Simenti ya emulsified asphalt zida matope omwe amagwiritsidwa ntchito pomanga ma slab ballastless track amagwiritsa ntchito zida za cationic emulsified asphalt. Cholinga chake ndikusintha kulimba, kulimba komanso kulimba kwa simenti ya emulsified asphalt zida matope. Ma polima nthawi zambiri amagwiritsidwa ntchito kusintha phula.