Yog lawm, marble yog pob zeb ntxig ntuj.Qhov no yog ib qho ntawm nws cov cwj pwm tseem ceeb kom nkag siab rau nws daim ntawv thov kom zoo, txij nkawm, thiab ntev {} tu tu.
1. Kev tshawb fawb thiab geological
Marble yog cov metamorphic pob zeb tsim los ntawm cov limestone lossis dolomite hauv qab cua sov thiab siab. Cov txheej txheem no, hu ua Metamorphism, Recrystallizes cov calcium carbonate (lossis dolomite) cov zaub mov. Thaum lub sij hawm cov qauv qauv yog ntom thiab kev cuam tshuam, nws muaj nyob hauv:
- Phaj pores microscopic:Chaw nyob nruab nrab ntawm recrystallized ntxhia nplej.
- Fissure thiab Veins:Ntuj tsis muaj zog ntsiab thiab kev sib tsoo uas tuaj yeem nqus tau kua dej.
Theem uas koj Porosity Porosity tuaj yeem sib txawv nyob ntawm qhov tshwj xeeb hom marble, nws cov chaw txua txiag zeb, thiab nws cov ntxhia muaj pes tsawg leeg. Qee qhov moj bis yog denser dua li lwm tus, tab sis tsis muaj qhov tsis yog - panous zoo li cov nplais ceramic ceramic.
2. Cov tswv yim cuam tshuam ntawm porosity
Cov ntxeem ntxeem ntawm marble ncaj qha cuam tshuam nws cov kev ua tau zoo thiab kev saib xyuas yuav tsum tau:
- Staining:Nchuav qhov tsaus ntuj, acidic, los yog pigmented kua (piv txwv li, kas fes, ua noj roj) tuaj yeem nqus tau rau hauv lub pob zeb, tawm mus tas li yog tias tsis ntxuav.
- Etching:Nov yog tshuaj lom neeg tshuaj lom neeg, tsis yog nqus. Acids (zoo li txiv qaub kua txiv los yog vinegar) hnov mob nrog cov calcium carbonate hauv marble, yaj cov npoo polished. Qhov no ua rau lub npub, matte lossis kos cim uas tau poob nws lub teeb ci. Etching yog thaj chaw calcite, whereas staining yog sab hauv lub zog.
- Dej puas tsuaj:Hauv thaj chaw ntub dej zoo li cov chav dej, lub sijhawm ntev tuaj yeem ua rau dej lossis, muaj cov kabmob hnyav, ua rau lub pob zeb kom tsis muaj zog.
- Yug me nyuam av rau cov kab mob:Hauv cov kab ke tsis huv, cov hws tuaj yeem nres cov dej noo thiab cov kab mob, uas yog vim li cas kev sib khi yog qhov tseem ceeb rau kev ua noj ua noj.
3. Kev sib piv nrog lwm cov pob zeb ntuj
Los muab cov ntsiab lus teb:
- Granite:Feem ntau cov ntxig ntau dua li marble vim nws muaj pes tsawg leeg ntawm kev siv cov zaub mov silicate (zoo li quartz thiab Feldspar). Nws tseem tiv taus cov kua qaub heev.
- Quartzite:Lub pob zeb ntuj uas feem ntau denser thiab tsawg dua ntxig dua li marble, thiab muaj cov kua qaub heev {{tsis kam.
- Limestone & Travertine:Feem ntau ntau tus ntxeem tau ntau dua li Marble, nrog tus nqi siab dua.
- Slate:Porosity sib txawv, tab sis nws cov qauv txheej txheem tuaj yeem ua rau nws raug kev nqus tau ntawm cov dav hlau cleavage.
4. Kev tswj hwm thiab kev tiv thaiv
Lub porosity ntawm marble yog tswj, tsis tshem tawm, dhau los ntawm cov txheej txheem tseem ceeb:khi.
- Impregnating Foob:Cov no yog hom thawj ntawm cov sib txuas siv rau marble. They do not create a surface film but penetrate the pores, forming a hydrophobic (water-repelling) barrier within the stone. Qhov no ua rau qeeb qeeb rau kev nqus cov dej ntawm cov kua, muab sijhawm rau koj kom ntxuav cov khoom nchuav.
- Cov Lus Tseem Ceeb:Khitsis uaUa cov marble stain - pov thawj lossis Acid - e}} Ntawv pov thawj. Nws ua rau nwsStain - tsis kamCov. Nws yuav tiv thaiv kev etching los ntawm acidic tshuaj. Ib qho chaw sib khi tseem tab tom etch yog tias raug cov kua qaub, tab sis cov kua yuav raug tsoo saum npoo ntau dua li tam sim ntawd nqus tau.
Lub ntsiab
Hauv kev xaus,marble yog uneativocally ib pob zeb ntxig.Cov xeeb ceem no yog lub luag haujlwm rau ob qho tib si kev pom zoo nkauj (daim ntaub qhwv zoo nkauj dua yog qhov tshwm sim ntawm cov kab mob ntxhia txav los ntawm cov hws hauv siab) thiab nws cov kev sib tw ua ntej. Kev siv kev vam meej ntawm marble, tshwj xeeb tshaj yog nyob rau hauv high- Cov sijhawm ua haujlwm zoo li cov chav ua noj kom pom zoo li cov khoom lag luam pob zeb lossis cov chaw tsim khoom zeb.
