Cov yam ntxwv zoo ntawm niaj hnub cement pobzeb
Raws li kev tshawb fawb, nyob rau hauv Ziyang County, Shaanxi, Tuam Tshoj lub "hometown ntawm pobzeb thiab slate", slate tau siv los npog cua txij li thaum lub sij hawm ua ntej Qin, thiab ntau quaint thiab elegant slate slate vaj tse tseem zoo khaws cia. Vim muaj kev rov qab los ntawm kev lag luam kev lag luam, tau ntau pua xyoo, European thiab Asmeskas lub teb chaws tau ua tiav cov slate thiab tau siv dav hauv cov ru tsev. Los ntawm cov tsev khaws puav pheej, cov tsev teev ntuj mus rau cov tsev high-end xws li lub nroog halls thiab castles, dub slate ru tsev tau dhau los ua ib lub cim ntawm European architecture. . Cov khoom ntawm slate tsis yog slate tab sis ntuj slate (tseem hu ua slate). Slate yog ib hom pob zeb zoo li marble, granite, sandstone, thiab lwm yam. Nws qhov loj tshaj plaws yog tias nws muaj ntuj cleavage, uas tuaj yeem siv manually lossis mechanically. Txoj kev ntawm kev faib nws, yog li cov tsos ntawm lub tsev slate khoom tsis mechanically polished, nrog rau cov yam ntxwv yooj yim thiab ntuj tsim. Vim muaj cov yam ntxwv ntawm cov khoom sib txawv thiab metamorphism, qee cov ntaub ntawv zoo hauv slate tuaj yeem ua tiav rau hauv cov vuas vov tsev. Cov slate no feem ntau hu ua pobzeb slates. Cov slates uas tsis tuaj yeem siv ua cov vuas yog ua tiav rau hauv cov vaj huam sib luag zoo nkauj thiab siv los ua phab ntsa. Nto thiab av kho kom zoo nkauj.
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Tib yam yog rau lub tsev slate, pobzeb slate yuav siv tau raws li veneer slate, tab sis veneer slate tsis tuaj yeem siv ua pobzeb slate, yog vim li cas? Ua ntej ntawm tag nrho cov, peb yuav tsum paub cov yam ntxwv uas zoo slate yuav tsum muaj: zoo splitting kev ua tau zoo, smoothness Zoo degree, me me xim txawv, siab blackness (zoo ib yam li lwm yam xim), siab flexural zog, tsawg calcium, hlau thiab sulfur ntsiab lus, Tsis tshua muaj hluav taws xob poob, zoo acid thiab alkali tsis kam, tsis tshua muaj dej nqus, thiab huab cua tsis zoo. Yog tsis muaj kev sib cais zoo, yeej tsis muaj txoj hauv kev los faib cov slate rau tus qauv thickness ntawm 5 ~ 7 hli; tsis muaj zog dabtsi yog khoov zoo, daim ntawv thov ntawm tiling tsis tuaj yeem ua tau raws li qhov tuab no; flatness tsis zoo, yeej tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua kom zoo thiab tsim nyog dai pobzeb; tsis muaj cov yam ntxwv zoo ntawm cov khoom siv, nws yog tsis yooj yim sua kom muaj kev pab cuam lub neej ntawm ntau tshaj 100 xyoo yam tsis muaj fading, weathering, thiab xeb. Qhov no yog vim li cas veneer slate tsis tuaj yeem siv ua slate. Ib yam li ntawd, vim li cas vim li cas slate tuaj yeem siv los ua veneer yog yooj yim to taub. Tsuav lub slate yog cais thicker, nws muaj peev xwm ua tau raws li tag nrho cov kev cai ntawm veneer. thov.
