Ob lub hauv paus thiab lub ntsej muag daim ntawv ntawm cov dej no -resistant gypsum board tau txais kev kho dej tsis zoo. Raws li lub teb chaws tus qauv, ob daim ntawv thiab cov tub ntxhais ntawm lub rooj tsavxwm yuav tsum ua tau raws li tej yam yuav tsum tau waterproofing (sab saum toj dej tsis tshaj 160 grams, dej nqus tus nqi tsis tshaj 10%). Dej-cov gypsum board yog tsim rau siv nyob rau hauv qhov chaw uas cov av noo tsis tu ncua tsis tshaj 95%, xws li chav dej, chav ua noj, thiab chav da dej. Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias cov dej tsis muaj dej gypsum board yuav tsum tsis txhob raug ncaj qha mus rau qhov chaw ntub dej, thiab yuav tsum tsis txhob tso dej ncaj qha rau hauv lub sijhawm ntev.
Gypsum board feem ntau yog siv hauv engineering lossis kho kom zoo nkauj hauv tsev. Vim nws zoo toughness, nws yog haum rau ua irregularly zoo li tus ceilings, thiab nws kuj tsis tshua muaj nqi ua rau nws lug siv nyob rau hauv engineering thiab kho kom zoo nkauj hauv tsev. Gypsum board yog cov khoom siv crystallization thib ob; cov dej muaju uas nws muaj tuaj yeem nqus tau cua sov, muab qee qhov kev tiv thaiv hluav taws. Tsis tas li ntawd, vim yog siv cov tshuaj foaming hauv nws cov khoom, cov qauv sab hauv ntawm gypsum board tsim cov qauv ntxeem tau, muab lub suab rwb thaiv tsev thiab nqus. Lwm cov ntaub ntawv uas muaj hluav taws kub thiab dej kuj tseem muaj nyob rau hauv kev ua lag luam, xws li calcium silicate board, FC board, thiab hluav taws kub -resistant thiab noo noo-resistant magnesium oxide board. Vim lawv cov khoom muaj txiaj ntsig, cov ntaub ntawv no muaj ntau daim ntawv thov piv rau gypsum board.
