Udaka oluzilinganisa lungathembela esisindweni salo ukuze lwakhe isisekelo esiyisicaba, esibushelelezi nesiqinile ku-substrate yokubeka noma yokuhlanganisa ezinye izinto. Ngesikhathi esifanayo, ingakwazi ukwenza ukwakhiwa okukhulu nokusebenza kahle. Ngakho-ke, i-fluidity ephezulu iyisici esibaluleke kakhulu se-self-leveling mortar Ngaphezu kwalokho, kufanele ibe nokugcinwa kwamanzi athile namandla okubopha, kungabikho mkhuba wokuhlukaniswa kwamanzi, futhi ibe nezici zokushisa ukushisa nokukhuphuka okuphansi kwezinga lokushisa.
Ngokuvamile, udaka lokuzilinganisa ludinga uketshezi oluhle. I-Cellulose ether iyisengezo esiyinhloko sikadaka oseluxubile. Nakuba inani elingeziwe liphansi kakhulu, lingathuthukisa kakhulu ukusebenza kodaka. Ingathuthukisa ukungaguquguquki, ukusebenza kahle kanye nokuhlangana kodaka. ukusebenza nokugcinwa kwamanzi. Idlala indima ebaluleke kakhulu emkhakheni wodaka osulungile.
1 uketshezi
I-Cellulose ether inethonya elibalulekile ekugcineni amanzi, ukungaguquguquki kanye nokusebenza kokwakhiwa kodaka oluzilinganisa. Ikakhulukazi njengodaka lokuzilinganisa, uketshezi lungenye yezinkomba eziyinhloko zokuhlola ukusebenza kokuzilinganisa. Ngaphansi kwesisekelo sokuqinisekisa ukubunjwa okuvamile kodaka, uketshezi lodaka lungalungiswa ngokushintsha inani le-cellulose ether. Kodwa-ke, uma umthamo uphezulu kakhulu, ukumanzi kwesakhi kuzoncishiswa, ngakho-ke umthamo we-cellulose ether kufanele ulawulwe ngaphakathi kwebanga elinengqondo.
2 ukugcinwa kwamanzi
Ukugcinwa kwamanzi kodaka kuyinkomba ebalulekile yokulinganisa ukuzinza kwezingxenye zangaphakathi zodaka lukasimende olusanda kuxutshwa. Ukuze ufeze ngokugcwele ukusabela kwe-hydration yezinto zejeli, inani elifanele le-cellulose ether lingagcina umswakama odongeni isikhathi eside. Ngokuvamile, izinga lokugcinwa kwamanzi lwe-slurry likhuphuka ngokunyuka kokuqukethwe kwe-cellulose ether. Umphumela wokugcina amanzi we-cellulose ether ungavimbela i-substrate ekumunceni amanzi amaningi ngokushesha kakhulu, futhi ivimbele ukuhwamuka kwamanzi, ukuze kuqinisekiswe ukuthi indawo yodaka ihlinzeka ngamanzi anele ukuze usimende usinde. Ngaphezu kwalokho, i-viscosity ye-cellulose ether nayo inethonya elikhulu ekugcinweni kwamanzi odaka. Ukuphakama kwe-viscosity, kungcono ukugcina amanzi. Ngokuvamile, i-cellulose ether ene-viscosity engu-400mpa.s isetshenziswa kakhulu kudaka oluzilinganisa, olungathuthukisa ukusebenza kokulingana kodaka futhi kwandise ukubumbana kodaka.
3 isikhathi sokujika
I-Cellulose ether inomphumela othile wokubuyisela emuva odakeni. Ngokukhula kokuqukethwe kwe-cellulose ether, isikhathi sokusetha sodaka siyakhula. Umthelela wokuvinjelwa kwe-cellulose ether ekunamathiseleni kukasimende ngokuyinhloko uncike ezingeni lokushintshwa kweqembu le-alkyl, futhi akuhlobene kancane nesisindo salo samangqamuzana. Uma izinga lokushintshwa kwe-alkyl lincane, okuqukethwe kwe-hydroxyl kukhulu, kanye nomthelela obambezelekayo osobala kakhulu. Futhi lapho kuphezulu okuqukethwe kwe-cellulose ether, kuba sobala ngokwengeziwe umphumela wokulibazisa wengqimba yefilimu eyinkimbinkimbi ekufakweni kwamanzi okuqala kukasimende, ngakho umphumela wokuhlehlisa nawo ubonakala kakhudlwana.
4 Amandla e-Flexural namandla acindezelayo
Ngokuvamile, amandla angenye yezinkomba ezibalulekile zokuhlola umphumela wokwelapha wezinto zikasimende ezisekelwe kusimende engxubeni. Lapho okuqukethwe kwe-cellulose ether kwanda, amandla okucindezela namandla okuguquguquka kodaka kuzokwehla.
5 amandla ebhondi
I-Cellulose ether inethonya elikhulu ekusebenzeni kokubopha kodaka. I-Cellulose ether yakha ifilimu ye-polymer enomphumela wokuvala phakathi kwezinhlayiya ze-cement hydration ohlelweni lwesigaba se-liquid, okukhuthaza amanzi amaningi efilimu ye-polymer ngaphandle kwezinhlayiya ze-cement, okwenza kube lula ukugeleza okuphelele kukasimende, ngaleyo ndlela kuthuthukiswe isibopho. amandla okunamathisela ngemva kokuqina. Ngesikhathi esifanayo, inani elifanele le-cellulose ether lithuthukisa ipulasitiki kanye nokuguquguquka kodaka, linciphisa ukuqina kwendawo yokuguqula isixhumi esibonakalayo phakathi kodaka ne-substrate, futhi linciphisa ikhono lokushelela phakathi kwezixhumanisi. Ngokwezinga elithile, umphumela wokubopha phakathi kodaka ne-substrate uyathuthukiswa. Ukwengeza, ngenxa yokuba khona kwe-cellulose ether ekunamathisele usimende, indawo ekhethekile yokuguqula isikhombimsebenzisi kanye nesendlalelo esibonakalayo kwakhiwa phakathi kwezinhlayiya zodaka kanye nomkhiqizo we-hydration. Lesi sendlalelo esisebenzisanayo senza indawo yoguquko ivumelane nezimo futhi ingaqini kancane, ngakho-ke, ukuze udaka lube namandla ebhondi aqinile.
Isikhathi sokuthumela: Mar-14-2023