Lub Rooj Tswjhwm Saib MGO Yuav Ua Li Cas Ua Tau Qhov Kev Pabcuam Lub Zog Yuav Tsum Tau Rau Phab Ntsa Panels?

Qhov kev pab cuam lub zog ntawm magnesium oxide (MGO) board raws li cov phab ntsa vaj huam sib luag yog nyob ntawm qhovhydration thiab hardening cov tshuaj tiv thaiv ntawm magnesium cementitious systemtsim kom muaj qhov ntom ntom thiab ruaj khov crystalline qauv. Nws yog kev txhim kho ntxiv los ntawm kev sib koom ua ke ntawm ntau yam - qhov sib koom ua ke ntawm kev tshawb fawb raw khoom proportioning, txheem txheej txheem ntau lawm, scenario-raws li cov qauv optimization thiab standardized post- kho. Thaum kawg, qhov no ua tiav lub zog compressive, flexural zog, cuam tshuam tsis kam thiab tag nrho cov qauv kev ruaj ntseg xav tau rau cov phab ntsa panels. Nws lub zog ntsuas yuav tsum ua raws li cov cai ntawmMagnesium Oxide Flat Phaj(GB/T 23266-2009) thiab cov lus qhia tshwj xeeb rau kev siv phab ntsa.

I. Core Foundation: Precise Proportioning of Magnesium Cementitious System

Qhov no yog qhov tseem ceeb ntawm MGO pawg thawj coj saib lub zog. Los ntawm kev tswj cov tshuaj tiv thaiv piv ntawm cov ntaub ntawv cementitious, ruaj khov thiab siab - cov khoom muaj zog hydration (tsuas yog 5·1·8 theem hydrated magnesium oxychloride cement) yog tsim. Meanwhile, fillers thiab reinforcing fibers tau ua ke los txhim kho cov qauv matrix:

Molar ratio tswj cov khoom tseem ceeb cementitiousCov molar ratio ntawm magnesium oxide (MgO) rau magnesium chloride (MgCl₂, los yog magnesium sulfate MgSO₄) yog tswj los ntawm5~7:1los xyuas kom meej txaus hydration cov tshuaj tiv thaiv tsis muaj ntau tshaj dawb ions. Qhov no tiv thaiv efflorescence thiab deliquescence uas ua rau matrix looseness, thiab xyuas kom meej qhov ntom interweaving ntawm hydration crystals.

Gradation optimization ntawm fillers: Inorganic fillers xws li quartz xuab zeb thiab talcum hmoov yog ntxiv nyob rau hauv raws li cov gradation ntawm ntxhib thiab nplua particle qhov ntau thiab tsawg los sau cov pores ntawm lub cementitious system, txhim kho lub compactness ntawm lub rooj tsavxwm, txo tus nqi shrinkage, thiab txo lub zog poob los ntawm shrinkage cracking.

Kev sib xyaw ua ke ntawm cov fibers reinforcing: Fiberglass daim ntaub (ob -sided/multi- txheej txheej), ntoo fiber ntau los yog xyoob fiber ntau tau muab tso ua ke, ua ib qho "network skeleton" hauv matrix. Qhov no disperses cov kev ntxhov siab ntawm lub rooj tsavxwm nyob rau hauv sab nraud quab yuam thiab ho txhim kho nwsflexural zog thiab cuam tshuam tsis kam(tus yuam sij rau flexural thiab tawg tsis kam ntawm MGO pawg thawj coj ua vaj huam sib luag phab ntsa).

Ntxiv cov modifiers: Retarders, tougheners, dej repellent thiab lwm yam additives yog ntxiv los kho cov hydration tshuaj tiv thaiv tus nqi, txhim kho lub toughness ntawm lub cementitious matrix, tiv thaiv brittle cracking ntawm lub rooj tsavxwm, txhim khu cov dej tsis kam, thiab tsis txhob muaj zog txo vim dej nqus.

II. Ntau lawm Guarantee: Standardized Moulding thiab nias txheej txheem

Lub compactness thiab structural uniformity ntawm lub rooj tsavxwm yog txhim kho los ntawm cov txheej txheem tswj, tsis txhob muaj zog tsis muaj zog los ntawm molding defects. Cov txheej txheem tseem ceeb yog raws li nram no:

Homogeneous sib tov ntawm slurry: Cementitious cov ntaub ntawv, fillers, fibers, modifiers thiab dej yog tag nrho sib xyaw yam tsis muaj caking los yog cais, kom ntseeg tau lub uniform faib ntawm tag nrho cov Cheebtsam nyob rau hauv lub slurry thiab nteg lub hauv paus rau lub uniformity ntawm hydration cov tshuaj tiv thaiv thiab lub zog.

Kev tswj siab nyob rau hauv xovxwm sib sau: Txais covroller pressing/pwm nias txoj kevnrog rau kev tswj lub siab nyob rau hauv qhov tsim nyog, kom lub compacted ceev ntawm lub rooj tsavxwm yog ntau tshaj los yog sib npaug rau 1.8g / cm³, ntxiv txo cov pores sab hauv thiab txhim kho compressive thiab flexural zog.

Layered composite reinforcement: Rau cov kev cai siv ntawm phab ntsa panels, ib txheej txheej ntawm "ob-sided fiberglass daim ntaub + core cementitious muab tub lim" yog saws. Cov ntaub fiberglass ua haujlwm raws li cov khoom thauj -cov kabmob txheej thiab cov tub ntxhais ua kom lub cev muaj zog, sib npaug ntawm lub zog saum npoo thiab tag nrho kev ua haujlwm ntawm lub rooj tsavxwm.

Tsau -thickness precision txiav: Tsau- thickness txiav yog nqa tawm raws sij hawm tom qab tsim los xyuas kom meej qhov ntev ntawm lub rooj tsavxwm, tsis txhob ntug chipping thiab tuab tuab, thiab tiv thaiv kev puas tsuaj hauv zos vim muaj kev ntxhov siab tom qab kev teeb tsa.

III. Scenario Adaptation: Optimized Structural Design rau Phab Ntsa Vaj Huam Sib Luag

Lub zog tseem ceeb ntawm ib lub rooj tsav xwm MGO yuav tsum tau ua ke nroginstallation kev tsim qauvyuav tsum tau hloov mus rau hauv tag nrho cov kev pab cuam lub zog ntawm phab ntsa, adapting rau scenario yuav tsum tau sib txawv muab faib / enclosure phab ntsa panels:

Composite nrog lub teeb steel keel ncej: Thaum nyias MGO boards (9 ~ 12mm) yog siv rau cov uas tsis yog -load- bearing partition phab ntsa, lawv tau nruab nrog lub teeb steel keel thav duab thiab tsau rau keel nrog tus kheej -tapping screws ntawm qhov nrug tsawg dua los yog sib npaug li 300mm. Nyob rau hauv kev quab yuam sab nraud, lub load ntawm lub rooj tsavxwm yog sib koom los ntawm keel, tsim ib tug "board-frame" kev koom tes load- bearing system thiab txhim kho tag nrho stability ntawm phab ntsa.

Reinforcement ntawm tuab boards nrog stiffeners: Thaum tuab MGO boards (15 ~ 18mm) yog siv rau cov khoom muab faib / thaiv phab ntsa, lub teeb steel stiffeners / keel txhawb nqa tuaj yeem muab ntxiv rau hauv lossis ntawm qhov chaw teeb tsa ntawm lub rooj tsavxwm. Hauv zos thickening/reinforcement yog siv rau kev ntxhov siab- cov ntsiab lus xws li qhov rooj thiab qhov rais qhib kom tsis txhob muaj kev puas tsuaj hauv zos.

Crack resistance reinforcement ntawm splicing pob qij txha: Lub splicing pob qij txha ntawm phab ntsa panels yog kho nrog "sib koom sealant + fiberglass mesh daim kab xev" kom tshem tawm lub zog tsis muaj zog ntawm cov splicing qhov khoob, xyuas kom meej tag nrho cov deformation tsis kam ntawm cov phab ntsa, thiab tiv thaiv phab ntsa zog los ntawm kev cuam tshuam los ntawm splicing cracking.

Kev sib koom tes tsim cov txheej txheem sib xyaw: Rau cov sandwich MGO phab ntsa panels (composite nrog pob zeb wool, calcium silicate, thiab lwm yam), cov khoom tseem ceeb yog bonded rau lub MGO board nrog tshwj xeeb nplaum, kom ntseeg tau lub interlayer bonding zog siab tshaj los yog sib npaug zos rau 0.3MPa kom tsis txhob interlayer tev thiab xyuas kom meej tag nrho cov load- bearing panels.

IV. Cov kauj ruam tseem ceeb ua tiav: Standardized Post-Txoj kev kho

Cov tshuaj tiv thaiv hydration ntawm magnesium cementitious system yog cov tshuaj tiv thaiv qeeb, thiab cov kev kho mob ncaj qha txiav txim siab qhov kev loj hlob zoo ntawm hydration crystals thiab lub zog kawg. Cov kev cai tseem ceeb ntawm curing yog:

Kev tswj kub thiab av noo: Kev kho ib puag ncig yog khaws cia ntawm aKub ntawm 20 ~ 30℃thiab txheeb ze av noo ntawm 60% ~ 80%, zam kev siab -kub raug, qis-kub khov-thaw los yog los nag los tiv thaiv kev cuam tshuam ntawm hydration cov tshuaj tiv thaiv thiab kev loj hlob txawv txav uas ua rau matrix looseness.

Guarantee lub sijhawm kho: Lub sij hawm kho lub hauv paus yog ntau dua lossis sib npaug li 7 hnub (lub sijhawm tseem ceeb ntawm cov tshuaj tiv thaiv hydration), thiab lub sijhawm ua kom tiav solidification curing lub sij hawm ntau dua los yog sib npaug rau 28 hnub kom ntseeg tau tias tsim kom txaus thiab ruaj khov qauv ntawm 5·1·8 theem hydration khoom.

Kev tswj cov dej noo: Gradient drying kev kho mob yog nqa tawm nyob rau tom qab theem ntawm kev kho kom tswj tau qhov kawg ntawm cov dej noo ntawm lub rooj tsavxwm.Tsawg dua los yog sib npaug li 10%, uas tsis tsuas yog ua kom tiav cov tshuaj tiv thaiv hydration, tab sis kuj zam kev deformation thiab tawg ntawm phab ntsa vaj huam sib luag vim muaj cov ntsiab lus noo noo hloov tom qab kev teeb tsa, yog li ua kom ntev - lub zog.

Cov khoom tiav stacking: Kho MGO boards yog stacked tiaj tus ntawm ib tug nruab nrab qhov siab kom tsis txhob deformation hauv zos nyob rau hauv lub siab thiab muab zais nyob rau hauv kev ntxhov siab nyob rau hauv lub boards.

V. Core Strength Indicators ntawm MGO Board rau Phab Ntsa Vaj Huam Sib Luag

Tsim nyog MGO phab ntsa panels yuav tsum ua kom tau raws li cov hauv qab no lub zog yuav tsum tau hloov mus rau kev siv cov kev xav tau ntawm cov uas tsis yog -load- cov kabmob phab ntsa:

Compressive zog Ntau dua los yog sib npaug rau 30MPa;

Flexural zog Ntau dua los yog sib npaug rau 12MPa;

Surface density in line with partition wall specifications (approx. 20~25kg/㎡ for 9mm boards);

Interlayer bonding zog (composite boards) Ntau dua los yog sib npaug rau 0.3MPa (tsis muaj tev lossis delamination).