Raws li kev tsim kho tshuaj, gypsum retarder plays lub luag haujlwm tseem ceeb hauv kev tsim vaj tsev niaj hnub los ntawm kev tswj lub sijhawm teem sijhawm ntawm gypsum-raws li cov ntaub ntawv, yog li muab lub sijhawm hloov pauv ntau dua rau kev tsim kho.
Hauv kev tsim kho, gypsum retarders feem ntau yog siv hauv kev tsim cov gypsum-raws li cov ntaub ntawv xws li mortars thiab pob zeb. Piv txwv li, plastering mortars yuav tsum nyob twj ywm hauv lub xeev yas ntawm phab ntsa kom yooj yim rau qib; Kev teeb tsa ntxov ntxov yuav ua rau qhov tsis sib xws. Ib yam li ntawd, tus kheej- cov ntaub ntawv hauv pem teb yuav tsum muaj sijhawm txaus los ntws thiab sau cov qhov khoob. Thaum siv, qhov ntau npaum li cas yuav tsum raug kho raws li qhov kub thiab txias, hom tshwj xeeb ntawm gypsum ua haujlwm, thiab qhov project- cov kev tsim kho tshwj xeeb; Feem ntau, qhov sib ntxiv ntawm 0.05% mus rau 0.5% ntawm gypsum qhov hnyav. Tom qab sib ntxiv, kev sib xyaw ua ke yog qhov tseem ceeb los xyuas kom meej qhov sib txawv ntawm qhov sib txawv thiab tiv thaiv kev teeb tsa hauv cheeb tsam anomalies. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev siv ntau dhau ntawm cov retarder tuaj yeem cuam tshuam cov khoom siv zog; Yog li ntawd, qhov kev pom zoo npaum li cas yuav tsum tau txiav txim siab los ntawm kev sim ua ntej.