Umthelela we-cellulose ether ekusebenzeni kodaka oluzilinganisa ngokwalo

I-self-leveling mortar ingathembela esisindweni sayo ukwenza isisekelo esiyisicaba, esibushelelezi nesiqinile ku-substrate yokubeka noma ukubopha ezinye izinto, futhi ngesikhathi esifanayo ingakwazi ukwenza ukwakhiwa okukhulu nokuphumelelayo. Ngakho-ke, uketshezi oluphezulu luyingxenye ebaluleke kakhulu yodaka lokuzilinganisa. 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, kodwa uketshezi lokunamathisela usimende langempela ngokuvamile luyi-10-12cm kuphela; i-cellulose ether iyisengezo esiyinhloko se-mortar exutshwe ngomumo, nakuba inani elingeziwe liphansi kakhulu, lingathuthukisa kakhulu ukusebenza kwe-Mortar, lingathuthukisa ukungaguquguquki, ukusebenza kokusebenza, ukusebenza kwebhondi kanye nokusebenza kokugcinwa kwamanzi kodaka. Idlala indima ebaluleke kakhulu emkhakheni wodaka osulungile.

1. Ukuhamba

I-Cellulose ether inethonya elibalulekile ekugcineni amanzi, ukungaguquguquki nokusebenza kokwakhiwa kodaka oluzilinganisa. Ikakhulukazi njengodaka oluzilinganisa, 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 yokukala 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. Ukusetha isikhathi

I-cellulose ether inomphumela othile wokuvinjelwa kodaka. 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. 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 yoshintsho phakathi kodaka kanye nesixhumi esibonakalayo se-substrate, futhi kunciphisa 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 sixhumi esibonakalayo senza indawo yokushintsha isixhumi esibonakalayo ibe nezimo futhi ingaqini kancane, ngakho-ke, ukuze udaka lube namandla ebhondi aqinile.