Izinto Ezithonya I-Cellulose Ether Ku-Cement Mortar

Ama-cellulose ether adlala indima ebalulekile ekuthinteni izakhiwo zikasimende, ezithinta ukusebenza kwawo, ukunamathela, ukugcinwa kwamanzi, namandla emishini. Kunezici ezimbalwa ezingaba nomthelela ekusebenzeni kwe-cellulose ethers odakeni lukasimende:

1. Ukubunjwa Kwekhemikhali: Ukwakheka kwamakhemikhali kwama-cellulose ethers, okuhlanganisa izinga lokushintsha (DS) kanye nohlobo lwamaqembu asebenzayo (isb, i-methyl, ethyl, i-hydroxypropyl), kuba nomthelela omkhulu ekuziphatheni kwawo kudaka lukasimende. I-DS ephezulu kanye nezinhlobo ezithile zamaqembu asebenzayo zingathuthukisa ukugcinwa kwamanzi, ukunamathela, nokujiya izakhiwo.
2. Usayizi Wezinhlayiyana Nokusabalalisa: Usayizi wezinhlayiyana nokusatshalaliswa kwama-cellulose ether kungathinta ukuhlakazeka kwawo kanye nokusebenzisana nezinhlayiya zikasimende. Izinhlayiya ezinhle ezinokusabalalisa okufanayo zivame ukuhlakazeka ngokuphumelelayo ku-matrix yodaka, okuholela ekugcinweni kwamanzi okuthuthukisiwe nokusebenza.
3. Umthamo: Umthamo we-cellulose ethers ekwenziweni kodaka lukasimende uthinta ngqo ukusebenza kwawo. Amazinga emithamo alungile anqunywa ngokusekelwe ezintweni ezifana nokusebenza okufiselekayo, izidingo zokugcinwa kwamanzi, namandla okusebenza. Umthamo oweqile ungase ubangele ukujiya ngokweqile noma ukuncipha kwesikhathi sokusetha.
4. Inqubo Yokuxuba: Inqubo yokuxuba, okuhlanganisa isikhathi sokuxuba, isivinini sokuxuba, nokuhleleka kokwengezwa kwezithako, kungaba nomthelela ekuhlakazweni nasekufakweni kwamanzi kwe-cellulose ethers odakeni lukasimende. Ukuxuba kahle kuqinisekisa ukusatshalaliswa okufanayo kwama-cellulose ethers kuyo yonke i-matrix yodaka, okuthuthukisa ukusebenza kwawo ekuthuthukiseni ukusebenza nokunamathela.
5. Ukubunjwa kukasimende: Uhlobo nokwakheka kukasimende osetshenziswa ekwenziweni kodaka kungathinta ukuhambisana nokusebenza kwama-cellulose ethers. Izinhlobo ezihlukene zikasimende (isb., usimende wase-Portland, usimende ohlanganisiwe) zingabonisa ukusebenzisana okuhlukahlukene nama-cellulose ethers, izinto ezinomthelela ezifana nokusetha isikhathi, ukuthuthukiswa kwamandla, nokuqina.
6. Izakhiwo Ezihlanganisiwe: Izakhiwo zama-aggregate (isb, usayizi wezinhlayiyana, umumo, ukuthungwa kwendawo) zingathonya ukusebenza kwe-cellulose ethers kudaka. Ama-aggregate anezindawo ezimahhadlahhadla noma izimo ezingajwayelekile angase ahlinzeke ngokuhlangana okungcono kwemishini nama-cellulose ethers, okugqamisa ukunamathela nokubumbana odakeni.
7. Izimo Zemvelo: Izici zemvelo ezifana nezinga lokushisa, umswakama, nezimo zokuphulukisa zingathinta ukugeleza nokusebenza kwama-cellulose ethers kudaka lukasimende. Izinga lokushisa eliphakeme kakhulu noma amazinga omswakamo angase aguqule isikhathi sokusetha, ukusebenza, kanye nezakhiwo zemishini zodaka oluqukethe ama-cellulose ethers.
8. Ukwengezwa Kwezinye Izithasiselo: Ukuba khona kwezinye izithasiselo, njengama-superplasticizers, ama-air-entraining agents, noma ama-accelerator asethiwe, angasebenzisana nama-cellulose ether futhi athonye ukusebenza kwawo odakeni lukasimende. Ukuhlola ukuhambisana kufanele kwenziwe ukuze kuhlolwe imiphumela ehambisanayo noma ephikisanayo yokuhlanganisa ama-cellulose ethers nezinye izithasiselo.

ukuqonda izici ezinomthelela we-cellulose ethers odakeni lukasimende kubalulekile ekuthuthukiseni ukwakheka kodaka kanye nokuzuza izici ezifiselekayo ezifana nokusebenza okuthuthukisiwe, ukugcinwa kwamanzi, namandla okusebenza. Ukwenza ukuhlola okuphelele nokuhlola kungasiza ekuhlonzeni imikhiqizo ye-cellulose ether efaneleke kakhulu kanye namazinga omthamo wokufaka udaka oluthile.