Kev paub txog tus kheej-leveling plaster

Gypsum self-leveling gypsum tseem hu ua self-leveling gypsum luv luv rau hauv av leveling gypsum, tseem hu ua gypsum base self-leveling mortar, yog ua los ntawm gypsum cov ntaub ntawv, tshwj xeeb aggregate thiab ntau yam tsev tshuaj additives nyob rau hauv lub Hoobkas ua tib zoo npaj, tov. tusyees thiab ua los ntawm ib tug tshwj xeeb hauv av leveling qhuav mortar. Tam sim no, cov khoom lag luam sib raug tau raug teeb tsa hauv peb lub tebchaws yog JC / T 1023-2007 "gypsum puag nws tus kheej-leveling mortar"Raws li cov khoom siv raw, tus kheej-leveling gypsum tau muab faib ua -semi-hydrous gypsum hom thiab Ⅱ hom anhydrous gypsum hom (tau los ntawm ob lub hydrous gypsum calcined ntawm 650 degree ~ 750 degree), uas yog ntxiv ib qho piv txwv ntawm retarding tus neeg saib xyuas (-semi-hydrous gypsum hom) los yog activator (Ⅱ hom anhydrous gypsum hom) nyob rau hauv cov khoom siv raw, thiab tom qab ntawd ntxiv cov cement, dej txo tus neeg sawv cev, dej tuav tus neeg sawv cev, nplua aggregate (quartz xuab zeb), defoaming tus neeg sawv cev, thiab lwm yam. Sib tov kom zoo. Vim tias qhov sib ntxiv ntawm cov khoom siv saum toj no yog me me, qis dua 1 feem pua, thiab feem ntau siv cov khoom siv tshuaj, yog li ntawd, cov ntsiab lus ntawm tus kheej-leveling gypsum ntau lawm tshuab yog cov cuab yeej tsim khoom ntawm -hemihydrous gypsum lossis hom II anhydrite. Tam sim no, vim qhov tsis tshua muaj txiaj ntsig thiab cov nqi tsim khoom muaj txiaj ntsig zoo ntawm ntuj gypsum, -hemihydrous gypsum hauv Suav teb yog siv hauv cov pwm ceramic. Kev tsim khoom thiab kev muag khoom ntawm tus kheej-leveling gypsum yog qhov tsawg heev, thiab kev saib xyuas zoo tseem tsis muaj dab tsi. Vim hais tias lub cev thiab cov tshuab ntsuas ntsuas tsim nyob rau hauv JC / T 1023-2007 txais yuav tus nqi qis tshaj ntawm cov qauv txawv teb chaws, qee cov tuam txhab siv lub tsev gypsum los tsim tus kheej-leveling gypsum, tso siab rau kev nce qib ntawm cov tshuaj ntxiv, kom cov qhov zoo ntawm tus kheej-leveling gypsum yog ze rau lub cev thiab lub zog ntawm JC/T 1023-2007. Nws tau ua rau tus nqi siab ntawm tus kheej-leveling gypsum, uas yog ib qho nyuaj rau nrov thiab siv.Qhov zoo ntawm nws tus kheej leveling plaster (1) Cov av ntawm tus kheej-leveling gypsum siv, qhov loj me, siab levelness, tsis muaj khoob nruas, tsis muaj cracking; Kev ua haujlwm yooj yim thiab yooj yim, kev ua haujlwm siab; Thiab tuaj yeem siv cov twj siv hluav taws xob, ib hnub khw hauv av txog 800 ~ 1000m². (2) Siv raws li "cov cua sov hauv pem teb" theem npog txheej (cov cua sov hauv pem teb piv nrog rau lwm txoj kev cua sov, txuag hluav taws xob yog li 20 feem pua, xws li kev siv cov khoom siv hluav taws xob faib hluav taws xob, kev txuag hluav taws xob muaj peev xwm ncav cuag 40 feem pua), tsis zoo li cement mortar txheej, vim thermal expansion txias contraction cracking, nruas phenomenon. (3) Thaum nws tus kheej-leveling gypsum thiab cement mortar yog siv nyob rau hauv screed txheej ntawm lub tsev pem teb, tus nqi kawg ntawm ob cov ntaub ntawv yog zoo sib xws. Yog tias cov cement mortar hloov los ntawm tus kheej-leveling gypsum, qhov txo qis ntawm cov cement hauv tag nrho cov cement tso tawm yog me me, tsawg dua ib feem pua; Yeej yuav tsis cuam tshuam rau kev txaus siab ntawm cov tuam txhab tsim khoom cement. Yog li ntawd, tsis muaj kev tiv thaiv me me thiab kev cia siab zoo hauv daim ntawv thov ntawm tus kheej-leveling gypsum hauv peb lub teb chaws cov khoom siv hauv tsev lag luam. (4) Cov ntawv thov txawv teb chaws muaj ntau heev, tau ntau xyoo lawm, muaj cov cuab yeej tsim kho thiab txhawb nqa cov cuab yeej siv