Minda ya udzu wochita kupanga ikuchulukirachulukira ndipo imagwiritsidwa ntchito pamasewera a tsiku ndi tsiku. Dongosolo lonse la masewera a udzu wochita kupanga makamaka limakhala ndi gawo loyambira, gawo lothandizira, ndi gawo la udzu. Maziko si gawo limodzi lofunika kwambiri pakuyika udzu wochita kupanga komanso limagwiranso ntchito ngati maziko a munda wonse. Ubwino wake umakhudza mwachindunji magwiridwe antchito ndi moyo wa munda. Chifukwa chake, ndikofunikira kwambiri kuyika maziko a minda ya udzu wochita kupanga patsogolo. Pansipa pali chiyambi chachidule cha mitundu ingapo ya maziko omwe amagwiritsidwa ntchito pamasewera a udzu wochita kupanga.
1. Maziko a Konkriti ya Simenti
Kusalala: Kusalala kwa chiwongolero cha chiwongolerocho kuyenera kukhala pamwamba pa 95%, ndi kulekerera kwa 3mm pa rula wa mamita 5.
Malo otsetsereka: 3‰-4‰ pakati, ndi kapangidwe ka madzi otuluka m'mbuyo. 8‰ ya ma curve, 5‰ ya ma straight, ndi 5‰ ya malo ozungulira. Pamwamba pake payenera kukhala pathyathyathya, posalala, komanso potulutsa madzi bwino.
Mphamvu ndi Kukhazikika: Pamwamba pake payenera kukhala pamodzimodzi komanso pamphamvu, popanda ming'alu kapena m'mbali zosweka, ndi malo olumikizirana owongoka komanso osalala. Dulani m'zigawo za 6m x 6m. Pansi pake payenera kukhala pakhungu lopitirira 95%. Mukagwiritsa ntchito chozungulira cholemera, onetsetsani kuti pamwamba pake palibe dothi lotayirira komanso zizindikiro zooneka bwino za mawilo.
Nthawi Yokonza: Nthawi yokonza maziko ndi masiku 21.
Malo Oyikira: Kuti mupange ndi kulemba molondola, gwiritsani ntchito zizindikiro zolimba komanso zomveka bwino kuti mulembe mizere yonse pamalopo.
2. Maziko a Asphalt
Kusalala: Kusalala kwa chiwongolero cha chiwongolerocho kuyenera kukhala pamwamba pa 95%, ndi kulekerera kwa 3mm pa rula wa mamita atatu.
Malo otsetsereka: <1% mopingasa, <1‰ molunjika, ndi <4‰ pamalo okwera kwambiri. Pamwamba pake payenera kukhala pathyathyathya komanso posalala kuti madzi atuluke.
Mphamvu ndi Kukhazikika: Zipangizo za asphalt ziyenera kukhala zopanda sera kapena sera yochepa. Maziko a maziko ayenera kukhala ogwirizana bwino kuti malo osalala, opanda ming'alu, opanda m'mbali zowola, komanso malo olumikizirana osalala komanso athyathyathya.
Nthawi Yokonza: Nthawi yokonza maziko ndi masiku 28. 3. 37 Maziko a Dothi la Lime
Kuchuluka kwa Zinthu: Dothi liyenera kukhala dothi losalala ngati dothi lokhala ndi tinthu tating'onoting'ono tosapitirira 15mm, kuchuluka kwa sulfate kosakwana 0.8%, ndi kuchuluka kwa zinthu zachilengedwe kosakwana 10%. Gwiritsani ntchito ufa wa laimu wosungunuka wa Giredi III. Mukasankha dothi loyenerera ndi laimu, chitani mayeso a 3:7 a kukanikiza dothi la laimu pa 5,000 m³ iliyonse (kukanikiza kwakukulu) kuti muwonetsetse kuti kapangidwe kake kamayang'aniridwa bwino.
Kuchuluka kwa Chinyezi: Kulamulira kuchuluka kwa chinyezi ndi gawo lofunika kwambiri. Nthawi zambiri ndibwino kusunga chinyezi pakati pa 20% ndi 23%, osapitirira 24%. Musanayambe kumanga, magawo monga kuchuluka kwa chinyezi m'nthaka, makulidwe a laimu-dothi, ndi kuchuluka kwa tamping ndi rolling ayenera kutsimikiziridwa kutengera mawonekedwe a polojekiti, compaction factor yopangidwira, mtundu wa nthaka, ndi momwe imagwirira ntchito.
Muyezo Wokakamiza: Chofunikira Chokakamiza K ≥ 0.95
Nthawi yotumizira: Seputembala 30-2025