Izinto zokwenziwa ngosimende zisetshenziswa kabanzi ekwakheni, emigwaqweni, amabhuloho, imigudu kanye namanye amaphrojekthi. Ngenxa yezinto zazo eziningi eziluhlaza ezibanzi, izindleko eziphansi kanye nokwakhiwa okulula, sebephenduke izinto zokwakha ezibalulekile. Kodwa-ke, izinto zokwenziwa ngosimende zibhekana nezinkinga ezithile kuzinhlelo zokusebenza ezisebenzayo, njengokumelana okuphansi kokuqhekeka, ukumelana kwamanzi okumpofu kanye nezidingo eziphakeme zokwehla komashisi kasimende ngesikhathi sokwakha. Ukuze uxazulule lezi zinkinga, abacwaningi bebelokhu bezama ukufaka izinto ezahlukahlukene ze-polymer ezintweni ezisuselwa kumasimende ukwenza ngcono ukusebenza kwazo.I-Hydroxypropyl methylcellulose (HPMC), njengezinto ezisetshenziswayo ezisetshenziswayo ze-polymer ezisetshenziswayo, zisetshenziswe kabanzi ukuthuthukisa izakhiwo ezahlukahlukene zezinto zokwenziwa zikasimende ngenxa yezinto zalo ezihle kakhulu zemboleko, umphumela wokuqina, ukugcinwa kwamanzi kanye nokumelana kwamanzi.
1. Izakhiwo eziyisisekelo ze-hydroxypropylllylyll methylcellulose
I-Kimacell®hydroxyprosellly methylcellulose iyinhlangano ye-polymer etholwe ukuguqulwa kwamakhemikhali kwemvelo yeselula, enamanzi amahle e-solubity, ukuqina, ukugcinwa kwamanzi kanye nokuqina kwamanzi. Ingaguqula i-viscosity, i-fluindity kanye nokulwa nokulwa kwezinto zokwenziwa kokosisi, futhi futhi inokuvumela okuthile komoya, ukungcola kanye nezinto ezilwa nokuguga. I-HPMC isetshenziswa kakhulu ezintweni zokwakha ezifana nodaka, izinto zokwakha i-cemential, udaka owomile, kanye nezimbobo, futhi kudlala indima ebalulekile ekuguquleni izakhiwo ze-rheological zezinto zokwenza amasimende.
2. Ukuthuthuka Kwezakhiwo Ze-Rheological Zezinto zokwenziwa kokhonkolo ngeHydroxypropylylylyllose
Izakhiwo ezimbongikazi zezinto zokwenziwa kwamasimende zibalulekile ekusebenzeni kwezokwakha, ikakhulukazi kwinqubo yokupompa, ukwakhiwa, kanye nokuhlanganiswa komhlaba. Izakhiwo ezinhle ze-Rheological zingathuthukisa ukusebenza kahle kokwakha futhi ziqinisekise ikhwalithi yokwakha. Ukungezwa kwe-HPMC kungathuthukisa ngempumelelo uketshezi lwezinto zokwenziwa ngosimende. Ngokukhethekile, i-HPMC inyusa ubuhlakani be-Cement Paste, okwenza ingxube izinzile futhi inciphise ukwenzeka kokuhlukaniswa. Ngaphansi kwezimo eziphansi zamanzi, i-HPMC ingathuthukisa ngempumelelo ukusebenziseka kokhonkolo nodaka, okwenza babe ne-fluidity engcono, kuyilapho futhi benciphisa izinga lokuhwamuka kokuqukethwe nokwandisa isikhathi sokwakha.
3. Ukuthuthuka kokumelana nokuqhekeka kwezinto zokwenziwa kosimende nge-HPMC
Izinto zokwenziwa ngosimende zithambekele ekuqhekekeni ngesikhathi senqubo enzima, ikakhulukazi ngenxa yezinto ezifana nokusoma i-shrinkage, izinguquko zokushisa, kanye nemithwalo yangaphandle. Ukungezwa kwe-HPMC kungathuthukisa ngempumelelo ukumelana kokuqhekeka kwezinto zokwenziwa kosimende. Lokhu kungenxa yokugcinwa kwamanzi okuhle nokuqina komphumela we-HPMC. Lapho i-HPMC ingezwa ngezinto zokwenziwa ngosimende, inganciphisa ngempumelelo ukuhwamuka kwamanzi bese yehlisa ijubane elikhuni lokunamathisela usimende, ngaleyo ndlela kunciphise ukuqhekeka kwe-shwinkage okubangelwa ukuguquguquka kwamanzi ngokweqile. Ngaphezu kwalokho, i-HPMC nayo ingathuthukisa ukwakheka kwangaphakathi kwezinto zokwenziwa kokhonkolo, yandisa ubulukhuni babo nokumelana nokuqhekeka.
4. Thuthukisa ukumelana kwamanzi nokuqina kwezinto zokwehlanza usimende
Ukumelana kwamanzi nokuqina kwezinto zokwenziwa kosimende kungenye yezinkomba ezibalulekile zesicelo sazo kumaphrojekthi wokwakha. Njenge-polymer ephezulu ye-molecular, i-HPMC ingathuthukisa ukumelana kwamanzi kwezinto zokwenziwa kosimende. Ama-molecule we-HPMC ane-hydrophicility eqinile futhi angakha ungqimba oluzinzile lwe-hydration ku-Cement Paste ukunciphisa ukungena kwamanzi. Ngasikhathi sinye, i-KimaCell®HPMC nayo ingathuthukisa i-miscrumps yezinto zokwakha kasimende, inciphise i-pority, futhi ngaleyo ndlela ithuthukise ukumelana nokulwa nokuphikiswa kwamanzi. Kwezinye izindawo ezikhethekile, njengezindawo ezinomswakama noma ukuxhumana kwesikhathi eside namanzi, ukusetshenziswa kwe-HPMC kungathuthukisa kakhulu ukuqina kwezinto zokwenziwa kosimende.
I-5
Umphumela wokuqina we-HPMC ngezinto zokwenziwa kosimende ungenye yezinto ezibalulekile zohlelo lwayo olubanzi. Ku-Cement Paste, i-HPMC ingakha isakhiwo senethiwekhi enezici ezintathu ngokushintshwa kwesakhiwo sayo samangqamuzana, ngaleyo ndlela sandisa kakhulu ukubonwa kwe-paste. Lo mphumela wokuqina awukwazi ukwenza izinto zokwenziwa kosekhukhwini ezinzile ngesikhathi sokwakha futhi ugweme ukuhlukaniswa kwesimende unamathisele, kodwa futhi uthuthukise umphumela we-paint we-paste kanye nokushelela kwendawo yokwakha ngezinga elithile. Ngodaka nezinye izinto ezenzelwe usimende, umphumela wokuqina we-HPMC angathuthukisa ngempumelelo ukusebenza nokuvumelana nezimo zezinto zokwakha.
I-6. I-HPMC ithuthukisa ukusebenza okuphelele kwezinto zokwenziwa kosimende
Umphumela ophelele weI-HPMCEzintweni ezisetshenziswayo kasimende, ikakhulukazi umphumela we-synergistic e-fluidity, ukumelana nokuqhekeka, ukugcinwa kwamanzi kanye nokumelana kwamanzi, kungathuthukisa kakhulu ukusebenza kwezinto zokwenza amasimende. Isibonelo, i-HPMC ingaqinisekisa ukufutheka kwezinto zokwakha usimende ngenkathi kuthuthukisa ukumelana kwazo kokuqhekeka kanye nokumelana kwamanzi esigabeni esinzima ngemuva kokwakhiwa. Ngezinhlobo ezahlukene zezinto zokwenziwa kokhonkolo, ukungezwa kwe-HPMC kungaguqula ukusebenza kwazo njengoba kudingeka nokwandisa ukusebenza okusebenzayo nokuqina kokuqina kwezinto zokwenza usimende.
I-Hydroxypropyl Methylcellulose (HPMC), njenge-polymer esebenza kakhulu ye-polymer enencibilike, ingathuthukisa kakhulu izakhiwo eziningi zezinto zokwenziwa kokhonkolo, ikakhulukazi ku-Rheology, ukumelana kwamanzi, ukumelana kwamanzi kanye nomphumela wokuqina. Ukusebenza kwayo okuhle kwenza i-HPMC isetshenziswe kabanzi emkhakheni wezinto zokwakha, ikakhulukazi izinto zokwakha amasimende. Ngokuzayo, ngokuthuthuka okuqhubekayo kwezidingo zokusebenza kwezinto zokwakha amasimende, amandla okufaka isicelo se-Kimacell®hpmpmc kanye nokutholakala kwayo kusadinga ukubhekwa futhi.
Isikhathi Sokuposa: Jan-27-2025