Udaka oluzilinganisayo lungathembela esisindweni salo ukuze lwakhe isisekelo esiyisicaba, esibushelelezi nesiqinile phezu kwesisekelo sokufaka noma ukubopha ezinye izinto, futhi ngesikhathi esifanayo lungenza ukwakhiwa okukhulu nokusebenza kahle. Ngakho-ke, ukugeleza okuphezulu kuyisici esibaluleke kakhulu sodaka oluzilinganisayo. Ngaphezu kwalokho, kumele lube nokugcinwa kwamanzi kanye namandla okubopha, kungabi nalutho lokuhlukaniswa kwamanzi, futhi lube nezici zokuvimbela ukushisa kanye nokwenyuka kwezinga lokushisa eliphansi.
Ngokuvamile, udaka oluzilinganisa ludinga ukugeleza okuhle, kodwa ukugeleza kwe-paste yangempela yesamente kuvame ukuba yi-10-12cm kuphela; i-cellulose ether iyisengezo esiyinhloko sedaka elixutshwe ngomumo, yize inani lokwengeza liphansi kakhulu, lingathuthukisa kakhulu ukusebenza kwe-Mortar, lingathuthukisa ukuhambisana, ukusebenza kahle, ukusebenza kwe-bonding kanye nokusebenza kokugcina amanzi kwedaka.
1: Ukugeleza kodaka
I-cellulose ether inethonya elibalulekile ekugcinweni kwamanzi, ukuhambisana kanye nokusebenza kokwakhiwa kwe-self-leveling mortar. Ikakhulukazi njenge-self-leveling mortar, ukugeleza kungenye yezinkomba eziyinhloko zokuhlola ukusebenza kwe-self-leveling. Ngaphansi kwesisekelo sokuqinisekisa ukwakheka okuvamile kwe-mortar, ukugeleza kwe-mortar kungalungiswa ngokushintsha inani le-cellulose ether. Kodwa-ke, uma umthamo uphakeme kakhulu, ukugeleza kwe-mortar kuzoncishiswa, ngakho-ke umthamo we-cellulose ether kufanele ulawulwe ngaphakathi kobubanzi obufanele.
2: Ukugcinwa kwamanzi odaka
Ukugcinwa kwamanzi kwesimende kuyinkomba ebalulekile yokukala ukuzinza kwezingxenye zangaphakathi zesimende esisanda kuhlanganiswa. Ukuze kwenziwe ngokugcwele ukusabela kokumanzi kwezinto zejeli, inani elifanele le-cellulose ether lingagcina umswakama esimendeni isikhathi eside. Ngokuvamile, izinga lokugcina amanzi kwesimende liyanda ngokwanda kokuqukethwe kwe-cellulose ether. Umphumela wokugcina amanzi we-cellulose ether ungavimbela i-substrate ekumunceni amanzi amaningi ngokushesha, futhi uvimbele ukuhwamuka kwamanzi, ukuze kuqinisekiswe ukuthi indawo yesimende inikeza amanzi anele okumanzisa usimende. Ngaphezu kwalokho, i-viscosity ye-cellulose ether nayo inethonya elikhulu ekugcinweni kwamanzi kwesimende. Uma i-viscosity iphakeme, kulapho ukugcinwa kwamanzi kuba ngcono khona. Ngokuvamile, i-cellulose ether ene-viscosity engu-400mpa.s isetshenziswa kakhulu kusimende esizilinganisayo, okungathuthukisa ukusebenza kwesimende futhi kwandise ukuqina kwesimende.
3: Isikhathi sokusetha udaka
I-Cellulose ether inomphumela othile wokulibazisa ku-mortar. Ngokwanda kokuqukethwe kwe-cellulose ether, isikhathi sokubeka kwe-mortar siyanda. Umphumela wokulibazisa we-cellulose ether ku-cement paste uncike kakhulu ezingeni lokushintsha iqembu le-alkyl, futhi awuhlobene kakhulu nesisindo sawo sama-molecule. Uma izinga lokushintsha kwe-alkyl lincane, okuqukethwe kwe-hydroxyl kukhulu, futhi umphumela wokulibazisa usobala kakhulu. Futhi lapho okuqukethwe kwe-cellulose ether kuphakeme, kulapho umphumela wokulibazisa wengqimba yefilimu yenhlanganisela ekufakweni kwe-cement kokuqala, ngakho-ke umphumela wokulibazisa nawo usobala kakhulu.
4: Amandla okucindezela e-mortar kanye namandla okuguquguquka
Ngokuvamile, amandla angenye yezinkomba ezibalulekile zokuhlola umphumela wokwelapha wezinto ezisekelwe kusimende engxubeni. Lapho okuqukethwe yi-cellulose ether kukhuphuka, amandla okucindezela kanye namandla okuguquguquka kwesimende kuzoncipha.
5: Amandla okubopha ubumba
I-Cellulose ether inethonya elikhulu ekusebenzeni kokubopha kwe-mortar. I-Cellulose ether yakha ifilimu ye-polymer enomphumela wokuvala phakathi kwezinhlayiya ze-cement hydration ohlelweni lwesigaba soketshezi, okukhuthaza amanzi amaningi kwifilimu ye-polymer ngaphandle kwezinhlayiya ze-cement, okusiza ekufakweni kwamanzi okuphelele kwe-cement, ngaleyo ndlela kuthuthukiswe amandla e-bond ye-paste ngemva kokuqina. Ngesikhathi esifanayo, inani elifanele le-cellulose ether lithuthukisa i-plasticity kanye nokuguquguquka kwe-mortar, kunciphisa ukuqina kwendawo yokuguquka phakathi kwe-mortar kanye ne-substrate interface, futhi kunciphisa ikhono lokushelela phakathi kwe-interfaces. Ngezinga elithile, umphumela wokubopha phakathi kwe-mortar kanye ne-substrate uyathuthukiswa. Ngaphezu kwalokho, ngenxa yokuba khona kwe-cellulose ether ku-cement paste, kwakhiwa indawo ekhethekile yokuguquka kwe-interface kanye nesendlalelo se-interface phakathi kwezinhlayiya ze-mortar kanye nomkhiqizo we-hydration. Lolu ngqimba lwe-interface lwenza indawo yokuguquka kwe-interface ibe lula futhi ingaqini, ukuze i-mortar ibe namandla aqinile e-bond.
Isikhathi sokuthunyelwe: Feb-03-2023