Gypsum plaster yog cov khoom siv cementing dawb ua los ntawm ib nrab lossis ua tiav lub cev qhuav dej ntawm cov ntxhia gypsum, feem ntau nrog tshwj xeeb retarders lossis hardeners ntxiv. Siv nyob rau hauv lub xeev yas (nrog dej), nws teev thiab hardens los ntawm tshuaj recombination ntawm gypsum nrog dej. … Saib ntxiv plaster ntawm paris.
Qhov txawv ntawm plaster thiab gypsum yog dab tsi?
Qhov sib txawv tseem ceeb ntawm gypsum thiab plaster ntawm Paris yog Gypsum muaj calcium sulfate dihydrate whereas lub plaster ntawm Paris muaj calcium sulfate hemihydrates Gypsum yog ib txwm muaj cov ntxhia. … Yog li ntawd, qhov no yog qhov txawv ntawm gypsum thiab plaster ntawm Paris.
YPuas gypsum zoo rau plastering?
Gypsum plaster muaj zoo rwb thaiv tsev, hluav taws kub resistant thiab cuam tshuam resistantTsis tas li, gypsum txuag tau ntau lub sijhawm thaum tsim kho thiab ua tiav zoo dua. Cov khoom no tau pom meej meej cov neeg tsim vaj tsev thiab cov neeg cog lus xaiv gypsum plaster tshaj li cov cement plaster.
Qhov txawv ntawm cement plaster thiab gypsum plaster yog dab tsi?
Cement plaster tuaj yeem siv rau sab nrauv thiab sab hauv. Whereas gypsum plaster tsuas yog siv rau ntawm lub qab nthab thiab phab ntsa sab hauv nws tsis tuaj yeem siv rau hauv qhov chaw ntub dej xws li chav da dej chav da dej chav ntxhua khaub ncaws thiab lwm yam. nws sib xws nrog cov xim.
gypsum plaster yog dab tsi?
Plaster yog tsim los ntawm gypsum los ntawm kev sib tsoo rau cov hmoov thiab maj mam muab cua sov kom tshem tawm qee yam, lossis tag nrho, ntawm cov dej ntawm crystallisation. Yog hais tias nws yog rhuab mus txog 150ºC, ces tsuas yog ib co ntawm cov dej ploj thiab cov hemi-hydrate yog tsim (CaSO4 1/2H2O).
