Kuonjezera 2% mpaka 3% ya ufa wa latex wopangidwanso kungathandize kwambiri kukana kuvala kwa matope odzipangira okha, omwe angagwirizane ndi 28d kuvala kukana ≤ 0.59 yotchulidwa muyeso. Polima amabalalitsa mu matope ndiyeno kupanga filimu, amadzaza pores wa slurry ndi interacts ndi simenti hydration mankhwala kupanga atatu azithunzithunzi maukonde dongosolo, zomwe zimapangitsa matope dongosolo kwambiri yaying'ono. The kusintha polima filimu kumathandiza kuthetsa nkhawa mkati matope, amachepetsa nkhawa ndende, ndi kuchepetsa m'badwo wa yaying'ono ming'alu, ndi polima filimuyi osati amasewera hydrophobic udindo komanso si kutsekereza capillary, kuti nkhaniyo. ali ndi hydrophobicity yabwino komanso kupuma. Panthawi imodzimodziyo, chifukwa cha kusindikiza kosindikizidwa chifukwa cha filimu ya polima, kusakwanira kwa zinthuzo ku chinyezi, kukana kwa mankhwala, kukana kuzizira, ndi kulimba kwake kumakhala bwino kwambiri, ndipo mphamvu yopindika, kukana ming'alu, mphamvu yomatira, ndi kusungunuka kwa matope amakhala bwino. Ndipo kulimba, ndipo potsiriza akhoza kupewa shrinkage kusweka kwa matope.
Mayesero apeza kuti madzi oyambirira a matope a gypsum-based self-leveling matope amawonjezeka poyamba ndiyeno amachepetsa ndi kuwonjezeka kwa ufa wa latex. Chifukwa chake ndi chakuti ufa wa latex uli ndi viscosity inayake m'madzi osungunuka. Kuthekera kwa kuyimitsidwa kwa slurry kwa filler kumapangidwa bwino, komwe kumapindulitsa pakuyenda kwa slurry; pamene kuchuluka kwa ufa wa latex kukupitirirabe, kuwonjezeka kwa viscosity ya slurry kumabweretsa kuwonjezeka kwa kukhuthala kwa slurry, ndipo madzi amadzimadzi amasonyeza kutsika. Kuchuluka kwa ufa wa latex sikumakhudza pafupifupi 20-min fluidity ya matope. Monga organic binder, latex powder imadalira kutuluka kwa madzi mu slurry, ndipo filimuyo imapanga mphamvu ya mgwirizano, ndipo maziko a gypsum amadzipangira okha mu nthaka youma. Madzi mumatope amasanduka nthunzi, ndipo ufa wa latex ukhoza kupanga filimu yosalekeza, yomwe imakhala ndi mphamvu yogwirizana. Mphamvu youma ya matope a gypsum-based self-leveling imawonjezeka ndi kuwonjezeka kwa ufa wa latex. Mu matope odziyimira pawokha a gypsum opanda ufa wa latex, pali makristalo ambiri owoneka ngati ndodo ndi columnar dihydrate gypsum crystals ndi makhiristo osakhazikika a dihydrate gypsum komanso pakati pa makhiristo a dihydrate gypsum ndi zodzaza. Mulunjike palimodzi kuti mupangire matope odziyimira pawokha opangidwa ndi gypsum kuti apange mphamvu, ndipo matope odziyimira pawokha opangidwa ndi gypsum osakanizidwa ndi ufa wa latex wopangidwanso, ufa wa latex umapanga kulumikizana kwa filamentary mu matope odziyimira pawokha, ndi dihydrate. gypsum makhiristo ndi fillers, makhiristo An organic mlatho aumbike pakati pa krustalo ndi dihydrate gypsum krustalo, ndi organic filimu aumbike pa dihydrate gypsum kristalo kukulunga ndi kulumikiza akuthwa mbali pakati pa dihydrate gypsum makhiristo, potero kuonjezera mgwirizano ndi kugwirizana. a gypsum-based self-leveling mortar ndi kupititsa patsogolo mphamvu ya gypsum-based self-leveling mortar The latex powder imakhala ndi mafilimu opanga mafilimu mumatope, omwe amatha kupititsa patsogolo mgwirizano ndi kugwirizanitsa mphamvu zamatope owuma. Kupanga kolumikizana kothandiza pakati pa zodzaza kumathandizira kulumikizana pakati pa makhiristo a gypsum a dihydrate ndi zodzaza, potero kumapangitsa kuti matope odziyimira pawokha azitha kukhazikika.
Nthawi yotumiza: Apr-10-2023