Omunye womehluko omkhulu phakathi kodaka oluhlanganisiwe nodaka lwendabuko ukuthi udaka oluhlanganisiwe luguqulwa ngenani elincane lezithasiselo zamakhemikhali. Ukungeza isengezo esisodwa ku-Dry Pow Pottar kubizwa ngokuthi ukuguqulwa okuyisisekelo, engeza izithasiselo ezimbili noma ngaphezulu zibizwa ngokuthi ukuguqulwa kwesibili. Izinga le-powder eyomile lincike ekukhetheni okulungile kwezakhi kanye nokuxhumana nokuqhathaniswa kwezakhi ezahlukahlukene. Ngoba izengezo zamakhemikhali zibiza kakhulu, futhi zinomthelela omkhulu ekusebenzeni kodaka olomile lwempuphu. Ngakho-ke, lapho ukhetha izengezo, inani lezengezo kufanele linikezwe kuqala. Okulandelayo ukwethulwa okufushane kwendlela yokukhetha yamakhemikhali we-celmulaose ether.
I-Cellulose Ether ibizwa nangokuthi i-Rheology modifier, i-admatic esetshenziselwa ukulungisa izakhiwo zesimbozo sodaka olusanda kuxutshwa, futhi isetshenziswa cishe kuzo zonke izinhlobo zodaka. Izakhiwo ezilandelayo kufanele zibhekwe lapho zikhetha izinhlobonhlobo zalo kanye nomthamo:
(1) Ukugcinwa kwamanzi emazingeni okushisa ahlukene;
(2) Umphumela wokuqina, ukubonakala;
(3) ubudlelwano phakathi kokuvumelana nokungaguquguquki kanye nokushisa, kanye nethonya ekuguquguqukeni phambi kwe-electrolyte;
(4) Ifomu nezinga lokuthezeka;
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(6) Ijubane lokuchithwa, imibandela nokuphelela kokuchithwa.
Ngaphezu kokungeza i-cellulose ether (efana ne-methyl cellulose ether) ukuze owesilisa osomile udaka, i-polyvinyl acid vinyl ester nayo ingangezwa, okungukuthi, ukuguqulwa kwesibili. Ama-Inorganic Binders (usimende, i-gypsum) kudaka angaqinisekisa amandla aphezulu acindezela, kepha anethonya elincane emandleni ashubile namandla aguqukayo. I-Polyvinyl Acetate yakha ifilimu elastiki phakathi kwama-pores etsheni lesikhumba, okwenza udaka ukuze abekezelele imithwalo emibi kakhulu nokwenza ngcono ukumelana nokugqoka. Ukuzijwayeza kufakazele ukuthi kunezela amanani ahlukene we-methyl cellulose ether kanye ne-polyvinyl acid vinyl ester eyomile ngodaka ngodaka, udaka ngodaka, nodaka lokuhlobisa ngodaka, nodaka lokuhlobisa ngodaka lwamakhonkrithi olwenziwe ngokhonkolo olwenzelwe wena Ukuthela phansi, njll. Ukuxuba okubili akukwazi ukuthuthukisa ikhwalithi yodaka, kodwa futhi kuthuthukisa kakhulu ukusebenza kokwakha.
Ngohlelo lokusebenza olusebenzayo, ukuze uthuthukise ukusebenza okuphelele, kuyadingeka ukusebenzisa izithasiselo eziningi ngokuhlanganiswa. Kunesilinganiso esifanelekile phakathi kwezithasiselo. Uma nje uhla lwethamali kanye nesilinganiso esifanele, zingathuthukisa ukusebenza kodaka ezicini ezahlukahlukene. Kodwa-ke, lapho kusetshenziswa yedwa, umphumela wokuguqulwa ku-mende ulinganiselwe, futhi kwesinye isikhathi ngisho nemiphumela emibi, njengokungeza ama-celluloose wedwa, ngenkathi kukhulisa ubumbano wodaka futhi kunciphisa kakhulu ukusetshenziswa kwamanzi kodaka kanye Gcina ngaphakathi kwe-slurry, okuholela ekunciphiseni okukhulu emandleni acindezelayo; Lapho kuxutshwa ne-ejenti yokungena komoya, yize izinga lokuhlanganiswa kodaka kungancishiswa kakhulu, futhi ukusetshenziswa kwamanzi kuncishiswe kakhulu, kepha amandla acindezelwe wodaka azothambekela ngenxa yama-bubble amaningi omoya. Ukuze uthuthukise ukusebenza kodaka lwe-masonry ngasikhathi sinye, futhi ngasikhathi sinye ugweme ukulimaza ezinye izakhiwo zodaka, ukuvumelana, ukuhlukaniswa namandla ompompi wephrojekthi nakuzobuchwepheshe ezifanele Imininingwane. Ngasikhathi sinye, akukho ukunamathisela kwe-lime okusetshenziswayo, ukonga usimende, ukuvikela imvelo, njll. ukufakwa komoya okufaka umoya.
Isikhathi sePosi: Meyi-08-2023