Tsiku Lotumiza:20, Oct,2025
Kodi zinthu zofunika pa gypsum self-leveling mortar ndi chiyani?
1. Yogwira admixtures: Self-leveling zipangizo angagwiritse ntchito ntchentche phulusa, slag ufa, ndi zina yogwira admixtures kusintha tinthu kukula kugawa ndi kumapangitsanso zimatha oumitsa zakuthupi. Slag ufa umakhala ndi hydration m'malo amchere, ndikuwonjezera kachulukidwe kazinthuzo komanso mphamvu pambuyo pake.
2. Zida za simenti zoyambilira: Kuonetsetsa kuti nthawi yomanga, zida zodziyimira pawokha zimakhala ndi zofunika zina kuti zikhale zolimba (makamaka 24-hour flexural and compressive strength). Simenti ya sulphoaluminate imagwiritsidwa ntchito ngati chitsulo choyambirira cha simenti. Simenti ya sulphoaluminate imatulutsa madzi mwachangu ndipo imapereka mphamvu zoyambilira, kukwaniritsa zofunika izi.
3. Zoyatsira zamchere: Zida za simenti zophatikizika ndi Gypsum zimapeza mphamvu zowuma kwambiri pansi pamikhalidwe yamchere. Quicklime ndi simenti 32.5 zitha kugwiritsidwa ntchito kusintha pH kuti apange malo amchere kuti azitha kuyenda bwino.
4. Kukhazikitsa accelerator: Kukhazikitsa nthawi ndi chizindikiro chofunikira kwambiri cha zida zodzipangira zokha. Kukhazikitsa nthawi yofupikitsa kapena yayitali kwambiri kumawononga ntchito yomanga. The coagulant kumapangitsa ntchito ya gypsum, kufulumizitsa ndi supersaturated crystallization wa dihydrate gypsum, kufupikitsa nthawi yoika, ndi kusunga kolowera ndi kuumitsa nthawi ya zinthu kudzikonda leveling mkati osiyanasiyana wololera.
5. Madzi Ochepetsera: Kuti muchepetse kachulukidwe ndi mphamvu ya zinthu zodzipangira zokha, madzi ndi simenti ayenera kuchepetsedwa. Pokhala ndi madzi abwino, kuwonjezera madzi ochepetsera madzi ndikofunikira. Njira yochepetsera madzi yamadzi ochepetsera madzi a naphthalene ndi yakuti magulu a sulfonic acid mu mamolekyu ochepetsera madzi a naphthalene hydrogen-bond ndi mamolekyu amadzi, kupanga filimu yokhazikika yamadzi pamwamba pa zinthu za simenti. Izi facilitates kutsetsereka wa zinthu particles, kuchepetsa kuchuluka kwa kusakaniza madzi chofunika ndi kusintha dongosolo la oumitsa zakuthupi.
6. Wothandizira Kusunga Madzi: Zida zodzipangira zokha zimagwiritsidwa ntchito pamtunda wochepa kwambiri, zomwe zimapangitsa kuti zikhale zosavuta kuziyika ndi maziko. Izi zingayambitse kuchepa kwa madzi okwanira, ming'alu ya pamwamba, ndi kuchepa kwa mphamvu. Pakuyezetsa uku, methylcellulose (MC) idasankhidwa ngati wothandizira kusunga madzi. MC imawonetsa kunyowa kwabwino, kusungidwa kwamadzi, komanso kupanga mafilimu, kuteteza madzi kutulutsa ndikuwonetsetsa kuti zinthu zodziyimira pawokha zimakhazikika.
7. Redispersible polima ufa (pambuyo pake amatchedwa polima ufa): Polima ufa akhoza kuonjezera zotanuka modulus wa zinthu kudziletsa leveling, kukulitsa kukana kwake ming'alu, mphamvu chomangira, ndi kukana madzi.
8. Defoaming agent: Defoaming agents amatha kusintha mawonekedwe a pamwamba pa zinthu zodzipangira okha, kuchepetsa thovu panthawi yowumba, ndikuthandizira kulimba kwa zinthuzo.
Nthawi yotumiza: Oct-20-2025