Izinsimbi ezizilinganisa ngokwazo zithembele esisindweni sazo ukuze zenze isisekelo esiyisicaba, esibushelelezi futhi esiqinile ku-substrate, okuvumela ezinye izinto ukuthi zibekwe noma ziboshwe, kuyilapho kuzuzwa izindawo ezinkulu, eziphumelelayo zokwakha. Ngakho-ke, uketshezi oluphezulu kuyisici esibaluleke kakhulu sodaka oluzilinganisa ngodaka. Kumelwe futhi ibe nezinga elithile lokugcinwa kwamanzi namandla okubopha, kungabikho percolation nokuhlukaniswa, futhi ibe ne-adiabatic nezinga lokushisa eliphansi.
Udaka olujwayelekile lokuzilinganisa ludinga uketshezi oluhle, kodwa ukugeleza kwangempela kodaka lukasimende kuvame ukuba ngu-10-12cm kuphela; i-cellulose ether iyisengezo esiyinhloko sodaka esilungele ukuxutshwa, nakuba inani elingeziwe liphansi kakhulu, lingakwazi ukuthuthukisa ngokuphawulekayo ukusebenza kodaka, okungathuthukisa ukungaguquguquki kodaka, ukusebenza, ukusebenza kwebhondi kanye nokusebenza kokugcinwa kwamanzi. Inendima ebaluleke kakhulu emkhakheni wodaka osulungile.
1 Uketshezi
I-Cellulose ether inomthelela omkhulu ekugcineni amanzi, ukungaguquguquki nokusebenza kodaka. Ikakhulukazi njengodaka lokuzilinganisa, i-fluidity ingenye yezinkomba eziyinhloko zokuhlola ukusebenza kokuzilinganisa. I-fluidity of mortar ingalungiswa ngokushintsha inani le-cellulose ether ngaphansi kwesisekelo sokuqinisekisa ukwakheka okuvamile kodaka. Okuqukethwe okuphezulu kakhulu kuzonciphisa ukugcwala kodaka, ngakho-ke, inani le-cellulose ether kufanele lilawulwe ngaphakathi kwebanga elinengqondo.
2 Ukugcina amanzi
Udaka olugcina amanzi luyinkomba ebalulekile yokusimama kwezingxenye zangaphakathi zodaka lukasimende. Ukuze wenze into yejeli ibe namanzi ngokugcwele, inani elizwakalayo le-cellulose ether lingasetshenziswa isikhathi eside ukugcina amanzi odaka. Ngokuvamile, njengoba inani le-cellulose ether likhula, ukugcinwa kwamanzi odaka nakho kuyanda. Ngaphezu kwalokho, i-viscosity ye-cellulose ether inomthelela omkhulu ekugcineni amanzi odaka; ukuphakama kwe-viscosity, kungcono ukugcina amanzi.
3 Ukusetha isikhathi
I-cellulose ether inomphumela wokuvimba osikeni. Ngokukhula kokuqukethwe kwe-cellulose ether, isikhathi sokusetha sodaka sizonwetshwa. Futhi ngokuqukethwe okuphezulu kwe-cellulose ether, umphumela wokuqala we-hydration hysteresis kasimende ubonakala ngokucacile.
4 Amandla e-Flexural namandla acindezelayo
Ngokuvamile, amandla angenye yezindlela zokuhlola ezibalulekile zengxube yokwelapha usimende. Amandla acindezelayo namandla okuguquguquka odaka azoncishiswa lapho okuqukethwe kwe-cellulose ether kwanda.
Isikhathi sokuthumela: Jul-01-2022