Pipe Pile Powder Base

Gypsum wallboard yog cov khoom siv lub npe siv los ntawm cov tuam ntxhab rau cov boards tshwj xeeb nrog gypsum cores thiab daim ntawv. Vim nws qhov hluav taws kub tsis kam, gypsum wallboard, feem ntau hu ua drywall, yog thawj lub tsev khoom siv rau phab ntsa, qab nthab, thiab muab faib rau hauv thaj chaw, chaw ua haujlwm, thiab cov khoom lag luam. Tsim los muab qhov chaw tseem ceeb thaum cov pob qij txha thiab lub taub hau fastener tau them nrog kev sib koom ua ke, gypsum wallboard kuj muaj kev tswj hwm zoo, kev lag luam, ntau yam, zoo thiab yooj yim. Vim cov yam ntxwv no, gypsum wallboard muaj cov kev xav tau siab ntawm cov khoom siv raw. Peb cov khoom, tseem hu ua anhydrous gypsum thiab anhydrous calcium sulfate, tuaj yeem ua tau raws li cov yam ntxwv ntawm gypsum wallboard. Cov ntsiab lus ntawm calcium sulfate tuaj yeem ncav cuag 97 feem pua, cov ntsiab lus sulfur trioxide tuaj yeem ncav cuag 55 feem pua, cov muaj pes tsawg leeg yuav luag tib yam li ntuj gypsum, purity siab heev, thiab peb tuaj yeem kho qhov chaw tshwj xeeb ntawm gypsum hmoov. ntawm gypsum wallboard, anhydrous gypsum tuaj yeem ua rau gypsum board ntau dua thiab ua haujlwm zoo, uas tuaj yeem ua kom muaj zog ntau xyoo ntawm gypsum board.