1. Izakhiwo eziyisisekelo ze-MHEC
I-MHEC (i-Methyl Hydroxyethyl Cellulose)iyi-ether ye-cellulose engeyona i-ionic enokuqina okuhle, ukugcinwa kwamanzi, ukwakheka kwefilimu kanye nokusebenza okuthuthukisiwe kokwakhiwa. Ezintweni zokwakha ezisekelwe kusimende, i-MHEC ingathuthukisa kakhulu ukugeleza kwamanzi, ukugcinwa kwamanzi, ukulwa nokuhlukanisa kanye nokunamathela kodaka, futhi isetshenziswa kabanzi ekunamathiseleni amathayili, i-putty powder, udaka oluzilinganisayo, udaka olungangeni manzi kanye nodaka lukasimende olungenawo amanzi. Ngenxa yomphumela wayo omncane enqubweni yokumanzisa usimende kanye nokuhambisana nezinhlobonhlobo zezingxube, i-MHEC isibe yinto ebalulekile yokuguqulwa kwezinto eziphilayo kodaka lukasimende olungenawo amanzi.
2. Izici ze-simende esingena emanzini
Udaka lukasimende olungena emanzini lubhekisela kudaka olukhethekile olungangena esakhiweni sesisekelo ngesenzo se-capillary, futhi luvame ukusetshenziswa emisebenzini yokulungisa isakhiwo, ukuqinisa kanye nokuvimbela amanzi. Lolu hlobo lodaka luyadingeka ukuze lube nalokhu:
Ukuvuleka okuhle: ukukwazi ukungena ezimbotsheni ezincane zesendlalelo sesisekelo futhi kuthuthukise ubuningi bezinto eziyisisekelo;
Ukugeleza okuphezulu: ukugeleza okuhle kanye nokuvuleka ngaphandle kokopha okukhulu kanye nokuhlukaniswa;
Ukunamathela okuqinile nokuqina: qinisekisa ukubopha okuqinile nezinto eziyisisekelo futhi kudlala indima yokuqinisa nokuvikela isakhiwo isikhathi eside;
Ukugcinwa kwamanzi okulingene: kunciphisa ukulahleka kwamanzi ngokushesha ngesikhathi sokwakha futhi uqinisekise ukuthi usimende ugcwele amanzi.
Indima ye-MHEC igxile kakhulu ekuthuthukiseni ukugeleza, ukugcinwa kwamanzi kanye nokusebenza kokwakhiwa kwe-mortar, kuyilapho ithuthukisa ngokungaqondile umphumela wokungena.
3. Umphumela we-MHEC ekusebenzeni kodaka lukasimende olungena emanzini
3.1. Thuthukisa ukugcinwa kwamanzi futhi ukhuthaze ukujula kokungena kwamanzi
Udaka olungena emanzini ludinga ukugcina ukuqina nomswakama ofanele ngaphambi kokungena ezimbotsheni ze-capillary zesendlalelo sesisekelo. I-MHEC inokugcinwa kwamanzi okuhle kakhulu, okunganciphisa ukuhwamuka okusheshayo kwamanzi amahhala kanye nokumuncwa yizinto eziyisisekelo ngesikhathi senqubo yokwakha udaka, kwandise isikhathi sokungena kodaka, futhi kwandise ukujula kokungena. Ngaphezu kwalokho, ukusatshalaliswa kwamanzi okufanayo nakho kusiza ekutholeni amanzi aphelele ezinhlayiyeni zesimende esigabeni sakamuva, kuthuthukiswe ubuningi nokuqina.
3.2. Thuthukisa ukugeleza kanye nokusebenza kokwakhiwa
I-MHEC ingalungisa izakhiwo ze-rheological ze-mortar yesamente evumayo, ukuze ikwazi ukugcina uketshezi oluhle lokwakha ngaphansi kwezimo eziphansi zesilinganiso samanzi nesamente. Ukwengezwa okufanele kwe-MHEC kunganciphisa ukuphuma kwegazi nokuhlukaniswa kwe-mortar, futhi kuqinisekiswe ukuthi i-slurry ingena ngokulinganayo ezimbotsheni ezincane ze-substrate. Kumortar evumayo edinga ukuthululwa noma ukufuthwa, i-MHEC ingathuthukisa ukusebenza kokupompa kanye nokulinganisa, okwenza i-mortar ibe lula ukuyakha.
3.3. Thuthukisa ukunamathelana phakathi kwe-mortar ne-substrate
Ngenxa yesakhiwo se-MHEC sokwenza ifilimu, ifilimu eguquguqukayo yemvelo ingakhiwa endaweni yokuhlangana ngesikhathi senqubo yokuqina kwe-mortar, okuthuthukisa ukulunywa nokunamathelana komshini phakathi kwe-mortar ne-substrate. Lo mphumela wokuguqulwa kwe-interface usiza ukuvimbela i-mortar ukuthi ingaphuki ku-substrate futhi uthuthukise ukuqina kwesendlalelo sokulungisa esingena emanzini.
3.4. Thuthukisa ukumelana nokuqhekeka kanye nokulawula ukuncibilika
Ngenxa yokwanda kobuningi bangaphakathi, udaka olungena emanzini luvame ukuqhekeka ngesikhathi sokuqina. Umphumela wokugcina amanzi we-MHEC unganciphisa izinga lokuqhekeka kodaka, wenze ukumuncwa kwesimende kwanele, futhi unciphise amathuba okuqhekeka kwepulasitiki. Ngesikhathi esifanayo, izakhiwo zokwakha ifilimu ze-MHEC zinikeza udaka ukuguquguquka okuthile, okuthuthukisa ukumelana nokuqhekeka okuphelele kanye nokuqina.
3.5. Ukulibazisa isikhathi sokuqala sokusetha kusiza ekwakheni
I-MHEC inomphumela wokulibazisa kancane enqubweni yokumanzisa usimende, okusiza ukwandisa isikhathi sokusebenza kwesimende. Kumaphrojekthi okulungisa adinga ukungena ngokugcwele, isikhathi eside sokwakha senza kube lula ukuthi isihlabathi singene engqimbeni eyisisekelo, kuthuthukiswe umphumela wokulungisa kanye nokuqina kwekhwalithi.
3.6. Thuthukisa ukusebenza kokungangeni kwamanzi kanye nokusebenza kokungangeni manzi
Ku-mortar eqinisiwe evunguzayo, njengoba i-MHEC ithuthukisa ubuningi kanye nokubopha kwe-interface ye-mortar, isakhiwo sayo se-capillary sifana kakhulu, i-porosity iyancishiswa, futhi ikhono lokungangeni kwamanzi lithuthukiswa kakhulu. Ekuvinjweni kwamanzi ngaphansi komhlaba, ulwelwesi lwemihubhe, i-reservoir kanye neminye imisebenzi, i-mortar evunguzayo eguquliwe ye-MHEC ingavimbela ngempumelelo ukufuduka komswakama futhi ithuthukise umphumela wokungangeni manzi.
4. Inani lokwengeza kanye nezinyathelo zokuqapha zokusebenzisa
Inani elinconywayo lokwengeza: ngokuvamile u-0.2% kuya ku-0.6% wesisindo sezinto ezifakwe usimende, okudingeka zilungiswe ngokwesilinganiso samanzi nosimende, ukugeleza kodaka kanye nenqubo yokwakha.
Gwema ukwengeza ngokweqile: Umthamo we-MHEC oweqile ungaholela ekuqineni okukhulu kwe-mortar, ukuncipha kokungena kwamanzi, futhi ungase ulibazise ukujiya kwe-cement okweqile.
Ukuhambisana nezinye izingxube: Ezingxotsheni ezigeleza amanzi eziqukethe izinto zokunciphisa amanzi, izinto zokungenisa umoya noma izinto zokwandisa, umthamo ofanele we-MHEC kufanele unqunywe ngokuhlola ukuqinisekisa ukusebenzisana kokusebenza.
Ku-mortar yesimende engenela amanzi, i-MHEC ithuthukisa kakhulu ukujula kokungena, ukunamathela, ukumelana nokuqhekeka kanye nokuqina kwe-mortar ngokusebenzisa izakhiwo zayo ezinhle kakhulu zokugcina amanzi, ukuqina, ukwakha ifilimu kanye nokulungisa i-rheological. Ngesikhathi esifanayo, ithuthukisa ukusebenza kokwakhiwa, yandisa isikhathi sokwakha, futhi ithuthukisa ikhwalithi iyonke yamaphrojekthi okulungisa nokuvikela. Ukukhetha okunengqondo nokulawula inani lokwengeza le-I-MHEC iyisihluthulelo sokufeza ukusebenza okuphezulu kodaka lukasimende olungena emanzini.
Isikhathi sokuthunyelwe: Julayi-21-2025