Cov Yam Tseem Ceeb Thiab Kho Cov Txheej Txheem Rau Xim Fading Ntawm Terrazzo Prefabricated Panels

Tej yam tseem ceeb thiab kho txoj hauv kev rau xim fading ntawm terrazzo prefabricated panels
Terrazzo prefabricated panels yog dav siv rau hauv pem teb thiab phab ntsa kho kom zoo nkauj vim lawv txoj kev zoo nkauj thiab kav ntev, tab sis lawv muaj xim fading tom qab ntev - siv. Cov hauv qab no yog ib qho kev tshuaj xyuas los ntawm ob qho tib si: ntau yam thiab cov txheej txheem kho, los pab daws qhov teeb meem ntawm fading.

1, Feem ntau ua rau cov xim fading ntawm terrazzo prefabricated panels
(1) Cov khoom siv zoo
Tsis zoo huab cua tsis kam ntawm aggregates thiab pigments
Pigments: Yog tias siv cov xim zoo tib yam (xws li azo compounds) siv, lawv tiv taus cov hluav taws xob ultraviolet, muaj peev xwm oxidation tsis muaj zog, thiab nws yooj yim rau decomposition thiab fading tom qab ntev - lub sij hawm raug (tshwj xeeb tshaj yog liab thiab daj pigments); Inorganic pigments xws li hlau oxide liab thiab chrome daj muaj cov huab cua zoo dua, tab sis yog tias qhov zoo tsis raws li tus qauv, lawv tseem yuav ploj mus.
Aggregates: Cov pob zeb uas tsis tshua muaj zog (xws li qee cov pob zeb limestone) tuaj yeem hnav thiab tsim kua muag, ua rau cov pob zeb ntog tawm los yog tsaus, ua rau cov xim sib dua; High hardness aggregates xws li iav thiab quartz yog ruaj khov dua.
Qhov teeb meem ntawm cement substrate
Cov qib cement qis lossis qhov sib ntxiv ntawm cov khoom siv tsis zoo (xws li cov neeg ua dej ntau dhau) tuaj yeem cuam tshuam cov dej ua tiav ntawm cov cement, ua rau cov xim tsis sib xws thiab yooj yim fading nyob rau theem tom qab (xws li cov cement tsis zoo uas zoo li tig daj).
(2) Cov txheej txheem kev tsim kho
Kev saib xyuas tsis txaus
Tom qab lub rooj tsavxwm prefabricated tau tsim, kev saib xyuas thaum ntxov (npog noo noo thiab tswj qhov kub thiab txias) tsis txaus, cov cement hydration tsis txaus, thiab qhov saum npoo yog xoob thiab dawb; Kev nrawm nrawm ntawm cov dej thaum lub sijhawm tu tuaj yeem ua rau shrinkage tawg thiab ua kom cov xim tsis zoo.
Sib tsoo thiab polishing defects
Kev xaiv tsis raug ntawm polishing mesh (xws li kev sib tsoo ntxhib yam tsis muaj kev sib tsoo zoo) lossis polishing tsis sib xws, ua rau qhov tsis sib xws ntawm glossiness thiab sib txawv ntawm qhov pom xim qhov tob; Kev sib tsoo ntau dhau ua rau cov cement uas tsis muaj dej txaus hauv cov txheej qis, ua rau muaj xim grey.
Kev tsim muaj kuab paug residue
Thaum lub sij hawm tso cov txheej txheem, cov cement slurry thiab cov nplaum tsis tau ntxuav kom huv si, uas tom qab ntawd tau hnov ​​​​mob nrog huab cua thiab noo noo los tsim cov stains (xws li cov pob daj), npog cov xim qub.
(3) Environmental yam rau kev siv
ultraviolet irradiation
Sab nraum zoov lossis lub teeb muaj zog (xws li chav hnub ci), hluav taws xob ultraviolet ua rau cov qauv molecular ntawm cov xim, thiab cov pigments organic yog fading; Hlau ions hauv cement oxidize nyob rau hauv lub teeb, ua rau dawb terrazzo tig daj.
Acid alkali corrosion kuj
Cov kua qaub muaj zog (xws li hydrochloric acid), muaj zog alkalis (xws li sodium hydroxide), lossis cov tshuaj chlorine uas muaj cov tshuaj tua kab mob corrode cov qauv ntawm cov cement paste, ua rau kev sib raug zoo ntawm cov xim thiab cov cement, ua rau cov xim poob thiab lightening; Cov tshuaj acidic reacts nrog calcium carbonate hauv cov cement los ua cov ntsev soluble, ua kom lub ntsej muag nrawm nrawm.
kev sib txhuam thiab hnav
Kev sib txhuam tsis tu ncua ntawm tib neeg, tsheb, thiab lwm yam ua rau hnav ntawm cov cement slurry, nthuav tawm cov khoom sib xyaw thiab cov xim sib dua ntawm cov cement hauv qab, ua rau pom kev tsis pom kev (xws li cov xim grey ntawm terrazzo ntug hauv cov pej xeem chaw).

Dej infiltration thiab carbonization
Lub sij hawm ntev dej tsub zuj zuj (xws li nyob rau hauv chav dej thiab balconies) ua rau dej infiltration, thiab calcium hydroxide nyob rau hauv cement reacts nrog carbon dioxide (carbonation) los tsim calcium carbonate, uas hloov xim los ntawm tsaus rau grey; Dej nqa cov pa phem (xws li xeb thiab roj stains) uas nkag mus thiab tsim cov xim xim.
(4) Kev tswj xyuas yam tseem ceeb
Txoj kev ntxuav tsis raug
Kev tu ntau zaus nrog cov txhuam tawv tawv (xws li cov pob hlau hlau) thiab cov tshuaj ntxuav kom huv tuaj yeem ua rau lub ntsej muag tiv thaiv (xws li sealants thiab siv quav ciab) thiab ua kom cov xim tsis zoo; Ua tsis tiav kom qhuav raws sijhawm tom qab ntxuav tau ua rau cov pa roj carbonization hauv zos thiab stains vim dej seem.
Kev tiv thaiv txheej tsis ua hauj lwm
Ua tsis tiav los yog siv cov sealant lossis siv quav ciab rau lub sijhawm ntev, ua rau tsis muaj dej tsis muaj dej, stain resistant, thiab UV resistant khoom ntawm qhov chaw; Cov tshuaj tiv thaiv tsis zoo (xws li huab cua tsis zoo siv quav ciab) ua rau muaj kev laus thiab tev, thiab tsis tuaj yeem muab kev tiv thaiv zoo.
2, Kho txoj kev rau xim fading ntawm terrazzo prefabricated board
(1) Kev tiv thaiv kev tiv thaiv (thaum tso cov prefabricated tshiab)
Kev xaiv khoom
Aggregates thiab pigments: Qhov tseem ceeb yuav tsum tau muab rau cov pigments inorganic nrog huab cua tsis zoo (xws li hlau oxide liab, chrome daj) los yog siab -kev ua tau zoo organic pigments (nrog lub teeb tsis kam ntawm ntau dua lossis sib npaug rau 7); High hardness thiab huab cua resistant quartz thiab granite fragments yog siv los ua aggregates.
Cement thiab admixtures: Siv Portland cement lossis cov cement dawb nrog qib siab dua lossis sib npaug ntawm 42.5 (xaiv cov cement dawb dawb rau dawb terrazzo); Xaiv cov khoom lag luam los ntawm cov tuam txhab muaj npe nrov rau cov khoom siv ntxiv thiab tsis txhob siv ntau dhau (xws li dej txo cov neeg ua haujlwm nrog qhov ntau npaum li cas tsawg dua lossis sib npaug li 1%).
Kev tsim kho specifications
Kev Kho: Tom qab molding, npog nrog cov hnab ntim ntub dej lossis cov yeeb yaj kiab yas, tuav cov av noo ntau dua lossis sib npaug li 90%, thiab tswj kom ntev dua lossis sib npaug li 7 hnub (tsim rwb thaiv tsev yog xav tau rau lub caij ntuj no); Ntxiv dej thiab kho rau 3-5 hnub tom qab demoulding kom tsis txhob shrinkage tawg.
Polishing thiab Sib Tsoo: Muaj ntau cov txheej txheem suav nrog kev sib tsoo ntxhib (60-120 mesh), kev sib tsoo nruab nrab (240-400 mesh), kev sib tsoo zoo (800-1500 mesh), thiab polishing (tshaj 3000 mesh) kom ntseeg tau tias lub ntsej muag du thiab zoo ib yam; Ntxuav cov plua plav tom qab polishing kom tsis txhob muaj kab mob.
Kev kho sealing: Tam sim ntawd siv dej-raws li kev nkag mus sealant (xws li silane) lossis siv quav ciab (xaiv huab cua resistant pem teb siv quav ciab) tom qab polishing los ua ib zaj duab xis tiv thaiv uas thaiv dej, kua qaub, alkali, thiab ultraviolet rays.
Kev kho kom haum rau qhov chaw siv
Sab nraum zoov lossis cov chaw teeb pom kev hnyav: ua ntej siv cov xim tsis muaj xim terrazzo lossis siv UV absorbers; Tsis tu ncua (txhua rau rau lub hlis) thov sealant.
Acid alkali ib puag ncig (xws li chav kuaj, chav ua noj): txheej dej tsis zoo yuav tsum tau siv rau hauv pem teb, thiab tus neeg saib xyuas nruab nrab (pH 6-8) yuav tsum tau siv los ntxuav.
(2) Kev ntsuas kho (faded prefabricated panels)
Me me fading (ntws paug, tiv thaiv txheej tsis ua hauj lwm)
Kev ntxuav thiab tshem tawm cov stains: Siv cov tshuaj ntxuav tu nruab nrab (xws li cov tshuaj ntxuav tais diav) ua ke nrog cov txhuam txhuam txhuam kom tshem tawm cov roj stains thiab xim daj; Cov stains tawv (xws li xeb) yuav tsum maj mam so nrog oxalic acid tov (5% -10%), thiab tam sim ntawd yaug nrog dej huv (kom tsis txhob muaj kua qaub residue).
Polishing: Maj mam txhuam rau saum npoo nrog 120-400 grit sandpaper kom tshem tawm oxide txheej thiab stains; Tom qab ntawd grind nws finely nrog 800-1500 mesh los kho nws cov luster; Tom qab polishing, siv penetrant dye (hloov cov xim qub), ntxiv xim, thiab thaum kawg siv sealant lossis siv quav ciab.
Cov fading nruab nrab (xim sib dua, hnav hauv zos)
Permeation dyeing: Xaiv cov dej-raws li cov xim zas xim (nrog zoo sib xws nrog terrazzo substrate), siv nws sib npaug nrog daim txhuam cev lossis cov menyuam, nkag mus rau hauv cov cement pores, thiab ntxiv xim; Tom qab staining, cia nws sawv ntsug rau 24 teev los kho cov xim.
Kev kho ib nrab: Rau qhov hnyav hnyav (xws li cov ces kaum), sau lawv nrog tib xim terrazzo kho paste (muaj cov khoom sib xyaw, pigments, thiab cement), txhuam lawv tiaj tus, thiab txhuam lawv kom phim cov xim qub ntawm lub rooj tsavxwm.
Loj fading (ntau greying ntawm cov xim, kev puas tsuaj)
Kev kho dua tshiab: tshem tawm cov qub prefabricated panels, ntxuav lub hauv paus txheej (pav, huv, thiab tsis muaj roj stains); Rov nteg cov terrazzo tshiab (xaiv cov ntaub ntawv tsim nyog, tsim qauv tsim), thiab ua kev sib khi tom qab kho.

Kev tiv thaiv saum npoo: Yog tias kev tshem tawm yog qhov nyuaj, ib txheej nyias ntawm terrazzo veneer (terrazzo pob zeb slab) tuaj yeem tso rau ntawm qhov chaw ntawm lub rooj tsavxwm qub, tsau nrog cov nplaum, thiab cov npoo kaw kom ua tiav cov xim tshiab.
(3) Kev kho tom qab kho
Tsis tu ncua (txhua 1-2 lub hlis) ntxuav nrog txhuam txhuam los yog lub tshuab nqus tsev, tsis txhob txhuam hniav; Ntxuav thiab qhuav kom tsis txhob muaj dej seem.
Siv tshuaj pleev thaiv hnub los yog siv quav ciab txhua rau lub hlis kom muaj kev ncaj ncees ntawm cov txheej txheem tiv thaiv; Tshawb xyuas thaj chaw sab nraum peb lub hlis twg thiab tam sim ntawd hais txog txhua qhov chaw nyob.
3, Cov ntsiab lus
Cov xim fading ntawm terrazzo prefabricated panels yuav tsum tau tswj xyuas thoob plaws hauv lub voj voog ntawm "cov ntaub ntawv siv kev tsim kho", nrog kev tiv thaiv raws li lub ntsiab lus tseem ceeb (xaiv cov ntaub ntawv tiv thaiv huab cua, kev tsim qauv, thiab hloov mus rau ib puag ncig), thiab kho raws li kev ntxiv (kev tu me me thiab dyeing, kho me ntsis, thiab kho kom zoo dua qub). Los ntawm kev saib xyuas kev tshawb fawb, cov xim ruaj khov ntawm terrazzo tuaj yeem txuas ntxiv tau zoo thiab cov nyhuv zoo nkauj tuaj yeem khaws cia.