Ukusebenza kwe-HPMC ekwakhiweni kobusika

I-HPMC (Hydroxypropyl Methylcellulose) ingukuhlanganiswa okusetshenziswe kabanzi kumaphrojekthi wokwakha, ikakhulukazi ekwakhiweni kobusika. Kuyinto etholwa yi-celluble celluble cellulose engathuthukisa ngempumelelo ukusebenza kwezinto ezifana nokhonkolo, ngosimende, kanye nokumbona. Ekwakhiweni kobusika, ngenxa yokushisa okuphansi, ukusabela kwesimende kwe-hydration kuvinjelwe, futhi ukusebenza kwezinto zokwakha kungahle kwehle. I-HPMC ingadlala indima ekwenzeni ngcono le nkinga.

1. Thuthukisa ukugcinwa kwamanzi kwezinto zokwakha
Lapho kwakhiwa ebusika, izinga lokushisa eliphansi libangela ukusabela kuka-hydration ku-CEAND, okuzothinta ukuthuthukiswa kokhonkolo nodaka. I-HPMC inokugcinwa kwamanzi okuhle, okungabambezela ngempumelelo ukuhwamuka kwamanzi, gcina izimo zomswakama ofanele, futhi zikhuthaze inqubekela phambili ebushelelezi yokuphendula kwe-cydration. Ngokwenza ngcono ukugcinwa kwamanzi ngodaka, i-HPMC ingaqinisekisa amandla nekhwalithi eqinile yodaka nokhonkolo ekwakhiweni kobusika, ngaleyo ndlela kugwemeke izinkinga zekhwalithi yokwakha ezibangelwa ukushisa okuphansi.

2. Khulisa ukunamathela kwezinto zokwakha
Ebusika izimo zokushisa eziphansi zokushisa, ukunxusa kwezinto zokwakha kungathinteka, ikakhulukazi kuzinhlelo zokusebenza ezifana nodaka nezimbozo. Ukunamathela okunganele kungadala izinkinga ezinjengokuchitheka kanye nemifantu. Njenge-polymer ephezulu ye-molecular, i-HPMC ingakhulisa ngempumelelo ukusebenza kwebhondi ngodaka nokhonkolo futhi kuthuthukise ukunamathela phakathi kwezinto zokwakha kanye nendawo eyisisekelo. Ekwakhiweni kobusika, ukwengeza i-HPMC kungaqinisekisa ikhwalithi yokwakha. Ngisho nasendaweni yokushisa ephansi, ukusebenza kwebhondi ngodaka nongqimba lwesisekelo kuhlala zizinzile, ngaleyo ndlela zigweme ukwehluleka kokwakha okubangelwa ukubopha okumpofu.

3. Thuthukisa uketshezi nokusebenza kwezinto zokwakha
Imvelo yokushisa ephansi ingadala ukubizeka kodaka noma ukhonkolo, okwenza kube nzima ukusebenza ngesikhathi sokwakha. I-HPMC ingathuthukisa uketshezi lukakhonkolo nodaka futhi ithuthukise ukusebenza kwayo. Kungasatshalaliswa ngempumelelo izinhlayiya zosekhukhwini emazingeni okushisa aphansi, kunciphise ukubumbana kodaka noma ukhonkolo, futhi kuthuthukise ukusebenza kwezisebenzi zokwakha. Ekwakhiweni kobusika, ikakhulukazi ezimweni sezulu ezibandayo, ukusetshenziswa kwe-HPMC kungaqinisekisa ukuthi lokho okuqukethwe kunezinkinga ezifanele futhi zigweme ubunzima bokwakha obangelwa ukweqisa noma okubonakalayo okunganele.

4. Thuthukisa ukumelana nesithwathwa
Lapho kwakhiwa ubusika, usimende nokhonkolo kuzobhekana nokuhlolwa kwemijikelezo ye-freeze-thaw, engadala imifantu ekwakhiweni, okuncishisiwe amandla nezinye izinkinga. I-HPMC ingathuthukisa ukumelana nokhonkolo kokhonkolo futhi yandise ukumelana kwayo kokuqhekeka kanye nokumelana nesithwathwa ngokuthuthukisa i-miscrumple of centsi. Ukungezwa kwe-HPMC kungakha ifilimu evikelayo, yehlise ukugeleza kwamanzi ku-Cement izinhlayiya, ngaleyo ndlela kunciphise ingcindezi yokunwebeka okubangelwa yiqhwa. Lokhu kubaluleke kakhulu ekuthuthukiseni ikhwalithi nokuqina kokwakhiwa kobusika.

5. Ukubambezela isikhathi sokusetha
Ngaphansi kwemvelo yokushisa ephansi, isilinganiso sokwenza ucingo y hydration reaction sibambezela, kuholele isikhathi eside sokhonkolo nodaka, olungathinta inqubekela phambili yokwakha. I-HPMC inomphumela othile wokubambezeleka kokuhleleka. Ingalungisa isikhathi sokusetha sikasimende futhi inciphise ubunzima bokwakha abangelwa ukuhlelwa okusheshayo phakathi nokwakhiwa kobusika. Inani elifanele le-HPMC lingalawula ngempumelelo isikhathi sokusetha, qiniseka isikhathi esanele sokusebenza ngesikhathi sokwakha, futhi sivikele izinkinga zekhwalithi ezibangelwa ukuhlelwa okuhamba kancane kakhulu.

6. Yehlisa uthuli kanye ne-agglomeration ngesikhathi sokwakha
Lapho kwakhiwa ebusika, izinto eziningi zokwakha zingamenza noma zikhule ngenxa yokuswakama komoya okuphansi. I-HPMC inganciphisa ngempumelelo ukuvela kwalezi zinkinga ngoba ingakha ifilimu ethile ngodaka noma ngokhonkolo, yehlisa ukulahleka kwamanzi, futhi ivikele ukomisa ngaphambi kwesikhathi noma kwe-agglomeration yendawo engaphezulu. Ngaphezu kwalokho, futhi kungathuthukisa ububi bezinto ezibonakalayo, vimbela ukuhlangana ngesikhathi sokuxuba nokuhamba, futhi uqinisekise inqubekela phambili yokwakha ebushelelezi.

7. Khuthaza ukungakhathalekile kokhonkolo
Lapho kwakhiwa ebusika, ukhonkolo uthintwe kalula ngokungena kwamanzi, okuthinta ukungapheleli kukakhonkolo. I-HPMC ithuthukisa ukwakheka kokhonkolo futhi ithuthukise ukuqina kwayo, ngaleyo ndlela ithuthukise ukungakhululeki kwayo. Kungakha ifilimu eliminyene ebusweni bekhonkolo ukuvikela ukungena kwezinto eziyingozi njengamanzi nama-chloride ion, futhi kunwebe impilo yenkonzo kakhonkolo.

8. Gcina izindleko futhi uthuthukise umnotho
Ngenxa yobunzima obuphakeme bokwakha nezindleko ezibhekene nokwakhiwa kobusika, amayunithi amaningi wokwakha azokhetha ukuthuthukisa ukusebenza kwezinto ezibonakalayo futhi aqinisekise ikhwalithi yokwakha ngokungeza ama-admixtures. Njengomphikisi ofanele, i-HPMC ingathuthukisa ukusebenza okuphelele kokhonkolo nodaka, yehlisa ukulahleka kokwakha okubangelwa ukushisa okuphansi, futhi kunciphise izindleko zokulungiswa ngenxa yamandla anganele noma ukulimala okuhlelekile. Ngaphezu kwalokho, ngenxa yokusebenza okuhle kwe-HPMC, kunganciphisa futhi isikhathi sokwakha, ukuthuthukisa ukusebenza kokwakha, ngakho-ke gcina izindleko.

I-HPMC isebenza kahle kakhulu ekwakhiweni kobusika futhi ingathuthukisa ngokuphumelelayo ukugcinwa kwamanzi, ukunamathela, ubisi, ukumelana nesithwathwa nezinye izakhiwo zezinto zokwakha ezifana nokhonkolo nodaka. Akugcini nje ngokuthuthukisa ikhwalithi yokwakha futhi kunciphisa umthelela omubi obangelwa ukushisa okuphansi, kepha futhi kuthuthukisa ukusebenza kahle emsebenzini futhi kusindisa izindleko. Njengoba izidingo zemboni yezokwakha zokwakhiwa kobusika ziyaqhubeka zikhuphuka, i-HPMC, njengokuhlanganiswa okuhle kakhulu, zinamathemba abanzi wesicelo ekwakhiweni kobusika futhi kufanelekile ukunyuswa okubanzi kanye nesicelo ekwakhiweni kwangempela.