IHydroxYethyl Methyl Cellulose (Hemc) ingukhonkolo wokuhlanganiswa kodaka ovame ukusetshenziswa kumaphrojekthi wokwakha. Yikhompiyutha ene-polymer esolulekile etholwe ukuguqulwa kwamakhemikhali kwe-Natural Plant Cellulose. Ukusetshenziswa kwe-hemc ku-cement data
1. Thuthukisa uketshezi lukasimende kasimende
Njengomkhulu, i-hemc ingathuthukisa kakhulu uketshezi lodaka ngemuva kokungezwa ngodaka kasimende. Indlela yayo yesenzo iwukukhulisa ukumelana nokugeleza kwe-slurry kasimende ngokwakha ukusebenzelana kwama-intermolecular ngama-molecule wamanzi nezinye izinto ku-matrix kasimende, ngaleyo ndlela kuthuthukise uketshezi lukadaka. Lapho uketshezi lodaka luhle, akulula nje ukufaka isicelo kanye nezinga ngesikhathi sokwakha, kepha futhi ungakugwema ukuhlukaniswa noma ukuqina kodaka kosimende, futhi kuthuthukise ukusebenza kahle kokwakha kanye nekhwalithi.
2. Thuthukisa ukubonwa kodaka
I-Hemc ine-solubility enamanzi eqinile. Ngemuva kokungeza i-hemc ku-penmus udaka, ukubonakala kodaka kuzothuthukiswa. I-viscosity eyandayo isiza ukuthuthukisa ukusebenza kodaka ngodaka, ikakhulukazi lapho kwakha izindawo ezibheke mpo, ukuvikela udaka olugelezele phansi noma ukuwa. Ngaphezu kwalokho, umphumela okhulayo we-hemc futhi udlala indima enhle ekwenzeni ngcono ukuqina kodaka ezindaweni zokushisa eziphakeme noma eziphansi, ikakhulukazi ekutholeni isikhathi sayo sokushisa.
3. Thuthukisa ukugcinwa kwamanzi kosimende kasimende
I-Hemc ingathuthukisa ngempumelelo ukugcinwa kwamanzi kosimende kasimende, okuyisici esibalulekile sesicelo sayo esivamile embonini yezokwakha. Ukugcinwa kwamanzi kuyimpahla ebalulekile kasimende kasimende ogcina amanzi avele ekuhwamukeni noma ekuthengeni ngesikhathi sokwakha. I-Hemc yakha ifilimu evikelayo ukuvikela ukuhwamuka kwamanzi okusheshayo futhi igcine umswakama wodaka, ngaleyo ndlela ubambezele ukusabela kuka-hydration ka usimende, ukugwema ukoma ngaphambi kwesikhathi, futhi wandise isikhathi sokusebenza sikakhonkolo.
4. Shintsha izici zejika le-bhedi
Ngemuva kokuthi i-hemc yengezwa ku-cutem usimende, ijika le-herhelogical libonisa izici zoketshezi olungelona neNewtonian, okungukuthi, ukubonakala kodaka kushintsha ngokushintshwa kwezinga le-shear. I-Shear Viscosity yodaka iphakeme, kepha lapho izinga le-shear likhuphuka, udaka lukhombisa ukuncipha kwe-vear ntomenon. I-hemc ingalungisa ngempumelelo lesi sici, ukuze udaka lube nokubonakala okuphezulu ngesilinganiso esiphansi se-shear, kuqinisekiswe ukuqina ngesikhathi sokwakha; Ngenkathi usezingeni eliphakeme le-Shear, uketshezi lodaka luthuthukile, kunciphisa umthwalo wemishini ngesikhathi sokwakha.
5. Thuthukisa ukusebenza nokuqina kodaka
Iqhaza le-hemc ku-usimende kasimende libuye liboniswe ekuthuthukiseni ukuqina nokusebenza kodaka. I-Hemc, njenge-Stabilizer, ingalawula ngempumelelo izinga le-hydration lodaka futhi livikele ukuhlukaniswa kwalo, ukuqunjelwa kanye nokuhlukaniswa kwalo. Ngokushintsha inani le-hemc elingeziwe, ukusebenza kodaka okulungile nokuqina kungatholakala ngokuya ngezidingo ezahlukahlukene zobunjiniyela, ikakhulukazi laphokha ngokushisa okuphezulu nendawo eyomile, umphumela we-hemc usobala.
6. Ubudlelwano phakathi kwenani le-hemc nokusebenza
Inani le-hemc lingenye yezinto ezibalulekile ezithinta izakhiwo zesigqi sikasimende. Ngokuvamile, i-hemc ethe xaxa ingezwa, umphumela osobala kakhulu wokwenza ngcono izakhiwo ze-hehelogical, kepha kukhona nemikhawulo ethile. Ukungezwa ngokweqile kwe-hemc kungadala ukwanda ngokweqile kodaka, okuzothinta ubushelelezi bokwakhiwa. Ngakho-ke, kuzinhlelo zokusebenza ezisebenzayo, kuyadingeka ukulungisa kahle inani le-hemc ngokuya ngemvelo yokusebenzisa kanye nezidingo zokwakha zodaka.
7. Umphumela we-hemc ku-cunmer udaka ngemuva kokuqina
Ngesikhathi senqubo enzima kasimende kasimende, iqhaza le-hemc lisekhona. Yize i-hemc ayihlanganisi ngokuqondile ekuphendukeni kwe-hydration ye-CEAND, ingathinta ngokungaqondile izakhiwo ezibonakalayo ngemuva kokuqina ngokwenza ngcono ukugcinwa kwamanzi kodaka kosimende. Isibonelo, i-hemc ingabambezela inqubo kasimende hydration, ngaleyo ndlela ikhuthaze amandla acindezelayo nokuqina kodaka kasimende. Udaka waphathwa ngenani elifanele le-hemc ngokuvamile linamandla ancomekayo kanye nokulwa nokulwa, futhi kufanelekile ikakhulukazi amaphrojekthi wokwakha adinga isikhathi eside sokusebenza.
Njengesengezo esibalulekile sikasimende, i-hydroxyyethyl methylcellulose (hemc) idlala indima ebalulekile ekwenzeni ngcono izakhiwo zesimbozo, ukugcinwa kwamanzi, ukuhlakanipha nokwenza umsebenzi wodaka. I-Hemc ingathuthukisa uketshezi lodaka, yenza ngcono ukuzokwenza, thuthukisa ukuqina kosimende, gwema ukuhlukaniswa kanye nokudilizwa, futhi ngaleyo ndlela kuthuthukise izinga lodaka lodaka. Kodwa-ke, inani le-hemc lidinga ukulawulwa ngokunembile ukuze liqinisekise ukuthi udaka lufinyelela izakhiwo ezinhle kakhulu zembongo ngesikhathi sokusebenza futhi uvikele imiphumela emibi okubangelwa ukwengeza ngokweqile. Ngakho-ke, kuzinhlelo zokusebenza ezingokoqobo, inani le-hemc elingeziwe kufanele lilungiswe ngokwezidingo zokwakha nezidingo zokwakha ezihlukile zokubamba iqhaza eliphelele endimeni yalo.
Isikhathi sePosi: Feb-21-2025