Ntuj marble yog nquag rau xim pob, roj me ntsis, xeb me ntsis thiab lwm yam tshwm sim, tshwj xeeb tshaj yog dawb thiab lub teeb xim marble. Marble yog lub pob zeb nrog cov qauv microporous. Hauv kev siv, micropore yooj yim nkag mus rau hauv cov stain, uas nyuaj rau tshem tawm los ntawm kev yaug. Nws tsuas tuaj yeem raug tshem tawm los ntawm kev tawg, nag lossis daus thiab adsorption, uas ua rau kev kho mob nyuaj heev.
Cov khoom tseem ceeb ntawm marble yog calcium carbonate, magnesium carbonate thiab lwm yam carbonates. Sab hauv ntawm marble kuj muaj lwm yam organic teeb meem, inorganic teeb meem, hlau compounds, thiab lwm yam khoom sib txawv ua rau marble xim txawv. Ntawm qhov tod tes, nws kuj ua rau lub teeb xim marble muaj peev xwm hloov xim thaum lub chaw sab nraud hloov, tshwj xeeb tshaj yog cov dawb marble.
Thaum lub pob zeb yog nyob rau hauv lub pob zeb loj ntawm lub mine, vim hais tias ib puag ncig yog heev ruaj khov, cov xim tsim yuav tsis hloov pauv. Thaum lub pob zeb raug mined los ntawm ib lub mine thiab nkag mus rau hauv kev sib txuas ntawm kev thauj mus los, kev ua haujlwm thiab kev teeb tsa, ib puag ncig yog tov nrog dej, roj thiab acid-base tshuaj, uas yuav hnov mob nrog lub pob zeb los tsim cov xim tshiab, ua rau hauv zos lossis tag nrho. xim hloov ntawm pob zeb.
Lub yellowing ntawm pob zeb feem ntau yog vim muaj tshuaj lom neeg cov tshuaj tiv thaiv ntawm hlau oxide thiab sulfur, ua rau pob zeb tawg. Cov xim hloov qee zaum tshwm sim sai, thiab qee qhov kev cuam tshuam qeeb lossis tsis pom. Nyob rau hauv cov txheej txheem ntawm kev ua, cov khoom tsis ruaj khov yog tsim nrog kev koom tes ntawm huab cua thiab pw tsaug zog. Cov xim ntawm cov tshuaj no yuav hloov pauv thaum lawv nkag mus rau hauv cov kua qaub thiab alkali. Qee lub pob zeb feem ntau zoo tom qab kev teeb tsa. Yog vim li cas rau cov teeb meem tam sim ntawd tom qab kev siv tsis raug yog qhov muaj ntawm cov khoom tsis ruaj khov.
Raws li cov laj thawj saum toj no, marble yuav hloov lub pob zeb nws tus kheej hauv cov txheej txheem ntawm kev ua thiab daim ntawv thov. Tus qub yog tsis pom qhov muag liab qab. Txhawm rau tshem tawm cov khoom sib xyaw ua ke los ntawm yav dhau los vim ib puag ncig, los nag thiab lwm yam, nws tau pom zoo tias cov dej tsis qab los yog cov kua nplaum rov qab, rov qab net thiab lwm yam kev ntsuas tuaj yeem siv rau hauv cov txheej txheem ntawm cov pob zeb ua haujlwm, uas tuaj yeem txo cov infiltration. tshuaj rau hauv pob zeb.
