Tsanangudzo uye kushandiswa kwe slurry sealing tekinoroji mukuvaka migwagwa mikuru
Slurry yekuisa chisimbiso inoshandisa michina michina kusanganisa zvakakodzera giredhi emulsified asphalt, yakaomarara uye yakanaka aggregates, mvura, mafirita (simende, lime, dota renhunzi, hupfu hwedombo, nezvimwewo) uye zvinowedzera zvinoenderana nechiyero chakagadzirirwa kuita musanganiswa weslurry uye zvakafanana. pamugwagwa wepakutanga uye wakanyatsobatanidzwa nemugwagwa wepakutanga kuburikidza nemaitiro ekuputira, demulsification, kupatsanurwa kwemvura, evaporation uye kusimba kuumba chisimbiso chakaoma, chakasimba, chisingaiti uye chepamusoro chemugwagwa, chinovandudza zvikuru kushanda kwe road surface.
Slurry sealing tekinoroji yakabuda muGermany mukupera kwema1940. MuUnited States, kushandiswa kweslurry sealant kunotora 60% yenyika dema pavement, uye chiyero chekushandiswa chakawedzerwa. Inoita basa rekudzivirira nekugadzirisa zvirwere zvakadai sekuchembera, kuputika, kutsvedzerera, kusununguka, uye makomba mumigwagwa mitsva uye yekare, zvichiita kuti Idziviriro yemvura, inopesana-skid, inotsvedzerera uye inopfeka-inogadzirisa zvinhu zvemugwagwa inokurumidza kuvandudzwa.
Slurry sealing zvakare inzira yekudzivirira yekuchengetedza yekuvaka yekumusoro kurapwa kwepavement. Ekare asphalt pavements kazhinji ane makatsemuka uye makomba. Kana iyo yepamusoro yakapfekwa, emulsified asphalt slurry sealing musanganiswa inopararira pamugwagwa mutete mutsetse uye inobvumirwa kusimba nekukurumidza sezvinobvira, kuitira kuti asphalt kongiri pavement inogona kuchengetedzwa. Iko kuchengetedza uye kugadzirisa nechinangwa chekudzorera basa repamusoro pemugwagwa uye kudzivirira kumwe kukanganisa.
Iyo inononoka kutsemuka kana yepakati kutsemuka yakasanganiswa emulsified asphalt inoshandiswa mu slurry seal layer inoda asphalt kana polymer asphalt yemukati kuti iite 60%, uye iyo shoma haifanirwe kunge iri pasi pe55%. Kazhinji, anionic emulsified asphalt haina kunamatira kune zvicherwa uye inotora nguva yakareba kuumbwa. Inonyanya kushandiswa kune alkaline aggregates, senge limestone. Cationic emulsified asphalt ine yakanaka kunamatira kune acidic aggregates uye inonyanya kushandiswa mune acidic aggregates, senge basalt, granite, nezvimwe.
Kusarudzwa kweasphalt emulsifier, chimwe chezvinhu zvinosanganiswa mu emulsified asphalt, inonyanya kukosha. Iyo yakanaka asphalt emulsifier haingogone chete kuvimbisa kunaka kwekuvaka asiwo kuchengetedza mutengo. Paunosarudza, iwe unogona kutarisa kune akasiyana-siyana zviratidzo zveasphalt emulsifiers uye mirairo yekushandiswa kwezvinhu zvinoenderana. Kambani yedu inogadzira akasiyana-siyana-chinangwa asphalt emulsifiers. Kana uine mibvunzo, tapota bvunza basa redu revatengi.
Iyo emulsified asphalt slurry seal inogona kushandiswa kudzivirira kuchengetedza kweKirasi II uye pasi pemigwagwa mikuru, uye inokodzerawo kune yakaderera chisimbiso layer, yakapfeka layer kana yekudzivirira yemigwagwa mitsva. Iko zvino yava kushandiswawo mumigwagwa mikuru.
Classification ye slurry seals:
Maererano ne mineral gradation
Zvinoenderana neakasiyana magidhi ezvigadzirwa zvemamineral, slurry seal layer inogona kukamurwa kuita yakanaka yekuisa chisimbiso layer, yepakati seal layer uye coarse sealing layer, inomiririrwa neES-1, ES-2 uye ES-3 zvakateerana.
Zvinoenderana nekumhanya kwekuvhura kune traffic
Zvinoenderana nekumhanya kwekuvhura traffic[1], slurry zvisimbiso zvinogona kukamurwa kuita nekukurumidza kuvhura traffic slurry seals uye inononoka kuvhura traffic slurry seals.
Yakakamurwa zvichienderana nekuti polymer modifiers inowedzerwa here
Zvinoenderana nekuti polymer modifier inowedzerwa here, slurry seal layer inogona kukamurwa kuita slurry seal layer uye yakagadziridzwa slurry seal layer.
Yakakamurwa zvichienderana neakasiyana emulsified asphalt
Slurry sealing layer yakakamurwa kuita yakajairwa slurry seal layer uye yakagadziridzwa slurry seal layer zvinoenderana neakasiyana emulsified asphalt.
Yakakamurwa zvichienderana nekukora
Zvinoenderana nehupamhi hwakasiyana, yakakamurwa kuita yakanaka yekuisa chisimbiso layer (I layer), yepakati seal layer (II type), coarse sealing layer (III type) uye gobvu yekuisa chisimbiso (IV mhando).