Omunye wemehluko omkhulu phakathi kodaka olomile nodaka lwendabuko ukuthi udaka olomile luguqulwa ngenani elincane lezithasiselo zamakhemikhali. Ukwengeza uhlobo olulodwa lwezithasiselo kudaka olomile kubizwa ngokuthi ukuguqulwa okuyinhloko, ukwengeza izithasiselo ezimbili noma ngaphezulu kungukuguqulwa kwesibili. Ikhwalithi yodaka olomile incike ekukhetheni okufanele kwezingxenye kanye nokuhlanganiswa kanye nokuhambisana kwezingxenye ezahlukahlukene. Izithasiselo zamakhemikhali ziyabiza futhi zinethonya elikhulu ezimpahleni zodaka olomile. Ngakho-ke, ekukhetheni izithasiselo, inani lezithasiselo kufanele libe khona kuqala. Okulandelayo isingeniso esifushane ekukhetheni izithasiselo zamakhemikhali i-cellulose ether.
I-Cellulose ether eyaziwa nangokuthi i-rheological modifier uhlobo lokuxuba olusetshenziselwa ukulungisa izakhiwo ze-rheological ze-mixed mortar entsha, cishe esetshenziswa kuzo zonke izinhlobo ze-mortar. Lezi zakhiwo ezilandelayo kufanele zicatshangelwe lapho ukhetha uhlobo kanye nenani elingeziwe:
(1) Ukugcinwa kwamanzi emazingeni okushisa ahlukene;
(2) ukuqina, ukujiya;
(3) Ubudlelwano phakathi kokungaguquguquki kanye nokushisa, kanye nomthelela ekungaguquguquki lapho kukhona i-electrolyte;
(4) isimo kanye nezinga lokushintshashintsha kwe-ether;
(5) ukuthuthukiswa kwe-thixotropy kanye nekhono lokubeka udoti (okudingekayo ukuze udoti umbozwe ebusweni obuqondile);
(6) Izinga lokuhlakazeka, isimo kanye nokuphelela kokuhlakazeka.
Ngaphezu kokwengeza i-cellulose ether ku-dry mortar (njenge-methyl cellulose ether), ingangeza ne-vinyl polyvinyl acid ester, okungukuthi, ukuguqulwa kwesibili. I-inorganic binder ku-mortar (usimende, i-gypsum) ingaqinisekisa amandla aphezulu okucindezela, kodwa ayinawo umthelela omkhulu emandleni okudonsa kanye namandla okugoba. I-vinyl polyvinyl ester yakha ifilimu enwebeka emgodini wamatshe esimende, i-makeup mortar ingathwala umthwalo ophezulu wokuguqulwa, ithuthukise ukumelana nokuguguleka. Kuye kwafakazelwa ngomkhuba ukuthi ngokungeza amanani ahlukene e-methyl cellulose ether kanye ne-vinyl polyvinyl ester ku-dry mortar, i-thin layer coating plate bonding mortar, i-plastering mortar, i-decorative plastering mortar, i-concrete block masonry mortar evuvukele kanye ne-self-leveling mortar ye-pouring floor kungalungiswa. Ukuxuba lokhu okubili akugcini nje ngokuthuthukisa ikhwalithi yo-mortar, kodwa futhi kuthuthukisa kakhulu ukusebenza kahle kokwakha.
Ekusetshenzisweni okusebenzayo, ukuze kuthuthukiswe ukusebenza okuphelele, kuyadingeka ukusebenzisa izingxube eziningi. Ukufana okuhle phakathi kwesilinganiso sokwengeza, ububanzi bomthamo obufanele, isilinganiso, kungaba nomthelela othile wokuthuthukisa ukusebenza kodaka, kodwa imiphumela yalo yokuguqulwa kodaka uma lusetshenziswa lodwa ilinganiselwe, ngezinye izikhathi ngisho nomphumela omubi, njenge-fiber eyodwa ehlanganisiwe, ekwandiseni ukunamathela kodaka, kunciphisa izinga lokuhlukaniswa kwamanzi ngesikhathi esisodwa, Kodwa-ke, ukusetshenziswa kwamanzi kodaka kuyanda kakhulu futhi kugcinwe ku-slurry, okuholela ekwehleni kwamandla okucindezela. Lapho i-ejenti yokuqeqesha umoya ingezwa, izinga lokuhlukanisa udaka kanye nokusetshenziswa kwamanzi kungancishiswa kakhulu, kodwa amandla okucindezela kodaka azoncipha ngenxa yamabhamuza amaningi. Thuthukisa udaka lokubumba ukuze usebenze kahle kakhulu, ngenkathi ugwema ukulimaza enye impahla, amandla okuqina kodaka lokubumba, izinga lokuhlukaniswa kwezigaba futhi uhlangabezane nezidingo zobunjiniyela kanye nemithethonqubo yemininingwane yobuchwepheshe, ngasikhathi sinye, ungasebenzisi i-lime putty, ukusindisa usimende, ukuvikelwa kwemvelo, njll., kusukela ekuncishisweni kwamanzi, ukujiya kwamanzi kanye nombono wokufaka ipulasitiki emoyeni, Kubalulekile ukuthatha izinyathelo eziphelele zokuthuthukisa nokusebenzisa izingxube ezihlanganisiwe.
Isikhathi sokuthunyelwe: Ephreli-29-2022