Lub gypsum plaster kav ntev npaum li cas?

Gypsum plaster, tseem hu ua plaster ntawm Paris, yog ntau yam khoom siv hauv tsev uas tau siv ntau txhiab xyoo hauv kev tsim vaj tsev, sculptures, thiab lwm yam qauv. Nws yog cov ntxhia mos sulfate uas tsim los ntawm calcium sulfate dihydrate, uas, thaum tov nrog dej, hardens rau hauv cov khoom muaj zog thiab ruaj khov.

Lub neej ntev ntawm gypsum plaster nyob ntawm ntau yam, nrog rau qhov zoo ntawm cov ntaub ntawv siv, txoj kev thov, thiab ib puag ncig uas nws siv. Feem ntau, txhim kho gypsum plaster kom zoo tuaj yeem siv sijhawm ntau xyoo lossis ntau pua xyoo, yog tias nws tau khaws cia thiab tu kom zoo.

Cov yam ntxwv cuam tshuam rau lub neej ntawm Gypsum Plaster

Cov ntaub ntawv zoo

Qhov zoo ntawm cov ntaub ntawv siv los ua gypsum plaster tuaj yeem muaj kev cuam tshuam loj rau nws txoj sia. Plaster ua los ntawm cov gypsum zoo thiab sib xyaw nrog cov dej huv thiab cov khoom tsim nyog yuav siv sij hawm ntev dua li plaster ua los ntawm cov ntaub ntawv tsis zoo lossis sib xyaw ua ke.

Txoj kev thov

Cov txheej txheem siv los thov gypsum plaster kuj tuaj yeem cuam tshuam nws txoj sia. Plaster uas yog siv ntau dhau los yog thinly, los yog tsis zoo sib txuas rau hauv qab ntawm qhov chaw, tej zaum yuav ua rau tawg, tawg, lossis tawg dhau sijhawm. Ib yam li ntawd, plaster uas tsis pub kom qhuav los yog kho kom zoo yuav ua rau muaj kev puas tsuaj ntau dua.

Ib puag ncig tej yam kev mob

Cov xwm txheej ib puag ncig uas siv gypsum plaster tuaj yeem cuam tshuam nws txoj sia. Plaster uas raug huab cua kub, av noo, lossis noo noo yuav ua rau muaj kev puas tsuaj los yog lwj ntau dua li plaster uas tiv thaiv los ntawm cov xwm txheej no. Tsis tas li ntawd, plaster uas raug tshav ntuj los yog lwm qhov chaw ntawm UV hluav taws xob yuav ploj los yog tsis muaj xim raws sij hawm.

Kev tu thiab tu

Thaum kawg, txoj hauv kev uas gypsum plaster yog khaws cia thiab saib xyuas tuaj yeem cuam tshuam nws txoj sia. Plaster uas tsis tu ncua, kho, thiab rov ua dua tshiab yuav siv sijhawm ntev dua li plaster uas tsis saib xyuas lossis tso cai rau deteriorate lub sijhawm. Tsis tas li ntawd, plaster uas raug siv hnyav lossis hnav yuav tsum tau hloov lossis kho ntau dua li plaster uas siv tsawg dua.

Muaj peev xwm teeb meem nrog Gypsum Plaster

Thaum gypsum plaster tuaj yeem yog cov khoom siv ruaj khov thiab kav ntev, nws tsis yog yam tsis muaj teeb meem. Qee qhov teeb meem uas tuaj yeem cuam tshuam lub neej ntawm gypsum plaster muaj xws li:

Kev tawg

Ib qho teeb meem feem ntau nrog gypsum plaster yog tawg. Kev tawg tuaj yeem tshwm sim rau ntau yam laj thawj, suav nrog kev sib xyaw tsis zoo ntawm cov plaster, kev npaj tsis txaus ntawm qhov chaw hauv qab, lossis kev txav mus los ntau dhau los lossis kev teeb tsa ntawm lub tsev. Cov kab nrib pleb tuaj yeem kho tau siv ntau txoj hauv kev, suav nrog kev sau nrog plaster, thov mesh lossis daim kab xev rau saum npoo, lossis siv cov khoom siv tshwj xeeb kho qhov sib xyaw.

Txiav thiab tawg

Lwm qhov teeb meem nrog gypsum plaster yog chipping lossis tawg. Qhov no tuaj yeem tshwm sim vim muaj kev cuam tshuam los yog hnav thiab tsim kua muag, thiab tej zaum yuav muaj ntau dua nyob rau hauv cov cheeb tsam uas muaj tsheb ntau lossis siv. Txiav los yog tawg plaster tuaj yeem kho tau siv ntau txoj hauv kev, suav nrog kev sau nrog plaster, siv cov khoom sib txuas tshwj xeeb, lossis siv cov txheej nyias ntawm plaster hla thaj chaw puas.

Discoloration

Nyob rau tib lub sijhawm, gypsum plaster kuj tuaj yeem hloov xim vim raug tshav ntuj lossis lwm qhov chaw ntawm UV hluav taws xob. Discoloration tuaj yeem hais los ntawm kev rov ua dua lossis siv cov txheej txheem tshiab ntawm plaster hla thaj tsam cuam tshuam.

Dej puas

Gypsum plaster yog qhov cuam tshuam rau kev puas tsuaj los ntawm dej los yog ya raws, uas tuaj yeem ua rau nws ua mos, crumbly, lossis pwm. Kev puas tsuaj dej tuaj yeem tiv thaiv tau los ntawm kev sib khi kom zoo thiab tiv thaiv lub plaster, thiab los ntawm kev daws cov teeb meem xau lossis dej noo hauv thaj chaw ib puag ncig.

Xaus

Hauv kev xaus, gypsum plaster tuaj yeem yog cov khoom siv ruaj khov thiab siv tau ntev hauv tsev thaum ntsia thiab tswj kom zoo. Lub neej ntev ntawm gypsum plaster nyob ntawm ntau yam, nrog rau qhov zoo ntawm cov ntaub ntawv siv.