Cov neeg yuav khoom feem ntau nug ib lo lus nug thaum lawv saib ntawm lub vaj huam sib luag sandwich: "Puas yog fireproof?" Lo lus teb "yog" lossis "tsis yog" qhia rau lawv tsis muaj txiaj ntsig. Dab tsi txiav txim siab seb lub tsev puas dhau qhov kev kuaj xyuas hluav taws yog lub vaj huam sib luag qhov kev ntsuas kev ua tau zoo. Hauv Suav cov txheej txheem, cov khoom siv hauv tsev tau muab faib ua plaub theem - A, B1, B2 thiab B3 - thiab plaub hom vaj huam sib luag vaj huam sib luag poob rau hauv A, B thiab B2. Tom qab txhua qhov kev ntsuam xyuas yog cov ntaub ntawv sib txawv kiag li thiab cov txheej txheem sib txawv kiag li.
Cov kev ntsuam xyuas lawv tus kheej
Class A yog tsis-combustible. Cov txheej txheem txhais: nyob rau hauv hluav taws xob ncaj qha los yog kub hauv huab cua, cov khoom tsis ignite, tsis smoulder, thiab tsis char. Rockwool, iav ntaub plaub thiab ua npuas ncauj iav poob rau hauv pawg no. Rockwool panels, rockwool-polyurethane composite panels thiab perforated rockwool panels feem ntau yog Class A.
Class B1 yog nplaim-retardant. Nyob rau hauv hluav taws xob ncaj qha los yog kub siab, cov khoom siv tsis yooj yim rau ignite, nyuaj rau smolder thiab nyuaj rau char, thiab nres kub thaum lub qhov hluav taws xob raug tshem tawm. PU thiab PIR nrog cov nplaim hluav taws tuaj yeem tuaj yeem ncav cuag B1, tab sis seb cov khoom lag luam tshwj xeeb ua tiav nws nyob ntawm kev tsim thiab daim ntawv tshaj tawm. PU / PIR panels nyob rau hauv kev ua lag luam feem ntau sau npe Class B, uas sib haum rau B1 hauv lub teb chaws tus qauv.
Class B2 yog combustible. Cov khoom ignites, smoulders thiab chars nyob rau hauv nplaim taws los yog kub kub, tab sis tus nqi kub yog tswj. EPS yog cov khoom siv B2 classic.
Class B3 yog cov nplaim taws heev. Ua npuas ncauj cov ntaub ntawv uas tsis muaj nplaim hluav taws kev kho mob poob ntawm no. Cov tuam txhab muaj npe nrov tsis muag B3 panels rau hauv kev tsim kho kev lag luam, tab sis qee zaus lawv tshwm sim los ntawm cov nqi qis.
Cov ntaub ntawv logic tom qab txhua qhov ntsuas
EPS yog B2 vim nws yog polystyrene ua npuas ncauj. Polystyrene yog cov khoom siv petrochemical - tshuaj tib yam li tsev neeg ua npuas ncauj ntim khoom noj. Nws hlawv, melts, drips thiab tso tawm cov pa taws hnyav thiab cov pa phem. nplaim retardants qeeb tus nqi kub tab sis tsis hloov cov khoom qhov xwm txheej. B2 panels yog tsim rau cov tsev khaws khoom zoo tib yam hauv cov cheeb tsam qhuav, cov qauv ib ntus, thiab cov tsev lag luam uas muaj hluav taws kub tsawg. Thaum ib qhov project cuam tshuam nrog cov chaw muaj neeg coob coob, khaws tshuaj lom neeg lossis cov lej hluav taws kub hauv zos, B2 yuav tsis dhau.
PU thiab PIR yog Class B vim lawv muaj cov nplaim hluav taws kub. Polyurethane ua npuas ncauj kuj yog cov khoom siv organic, tab sis los ntawm kev hloov kho thiab cov nplaim hluav taws, nws tuaj yeem ua rau char tsis muaj dej thiab tua nws tus kheej thaum cov nplaim hluav taws raug tshem tawm. PIR ua tau zoo dua li PU: txheej txheej char uas ua rau ntawm qhov kub thiab txias insulates tiv thaiv tshav kub thiab qeeb nplaim taws. Chav B panels haum rau feem ntau cov kev cob qhia kev lag luam, chav txias thiab logistics warehouses - qeb loj tshaj plaws los ntawm ntim ntawm lub khw.
Rockwool yog Class A vim nws tsis yog organic kiag li. Rockwool yog tsim los ntawm melting basalt thiab lwm yam ntuj pob zeb ntawm qhov kub thiab txias, ces fiber-spinning lub yaj. Nws melting point tshaj 1,000℃thiab nws tsis hlawv. Nws tso tawm tsis muaj pa phem thiab tsis drip. Qhov no yog vim li cas nws yog irreplaceable nyob rau hauv cov tshuaj cleanrooms, electronics chaw, tsev kho mob, tshuaj nroj tsuag thiab txhua qhov project uas yuav tsum tau nruj hluav taws. Rockwool-polyurethane composite panels kuj yog Class A: cov txheej rockwool sab nrauv muab qhov hluav taws kub tiv thaiv, polyurethane txheej muab rwb thaiv tsev, thiab kev sib dhos tag nrho mus txog A.
Siab dua tsis yog ib txwm zoo dua - kev sib piv yog qhov tseem ceeb
Ntau tus neeg yuav khoom hnov "Class A yog qhov zoo tshaj plaws" thiab qhia A txhua qhov chaw. Qhov ntawd tsis yog qhov tseeb.
Rau cov tsev khaws khoom hauv av zoo tib yam, thaj chaw qhuav thiab cov chaw tsis muaj neeg coob coob, B2 EPS txaus. Thaum cov peev nyiaj tsawg, siv qhov sib txawv ntawm zinc txheej thickness los yog xim zoo ua rau lub tsev lifespan ntau dua li kev txhim kho qhov ntsuas hluav taws.
Rau kev cob qhia kev lag luam dav dav, chav txias thiab chaw xa khoom, Chav B PU / PIR yog qhov kev xaiv tseem ceeb. Kev rwb thaiv tsev zoo, kev siv hluav taws xob txaus, tus nqi nruab nrab. Qhov no yog qeb loj tshaj plaws los ntawm ntim.
Rau cov chaw muag tshuaj, khoom siv hluav taws xob, tsev kho mob, tshuaj thiab cov tsev nyob ze ntawm txoj kev khiav tawm hluav taws, Chav A yog qhov yuav tsum tau ua. Hauv cov xwm txheej no, A tsis yog "nyiam dua" - nws yuav tsum tau ua los ntawm cov lej. B lossis B2 yuav ua tsis tiav kev tshuaj xyuas hluav taws thiab qhov project tsis tuaj yeem xa mus.
Ib qho taw qhia uas feem ntau tsis saib xyuas: qhov sib txawv ntawm tib lub tsev tuaj yeem siv cov kev ntsuas sib txawv. Lub rooj cob qhia tseem ceeb yuav siv Class B PU panels, thaum chav hluav taws xob, khw muag tshuaj thiab kev khiav tawm txoj kev siv Class A rockwool. Qhov no ua tiav cov kev xav tau hluav taws kub thaum tswj tus nqi tag nrho. Yuav faib cov cheeb tsam li cas nyob ntawm cov lej hluav taws xob hauv zos thiab qhov project tsim.
Kev sib txawv hauv cheeb tsam hauv kev xav tau hluav taws
Qhov kev xaiv ntawm qhov hluav taws kub ntsuas tsis yog nyob ntawm lub tsev siv xwb tab sis kuj nyob rau hauv lub zos hluav taws code qhov twg qhov project nyob. Ntau lub teb chaws thiab cheeb tsam siv cov txheej txheem sib txawv, thiab lawv cov kev cai rau cov sandwich panels txawv raws li.
Tuam Tshoj Mainland siv GB 8624 rau kev faib tawm, ua ke nrog GB 50016 (Code for Fire Protection Design of Buildings), uas teeb tsa cov kev xav tau rau kev ua haujlwm combustion thiab hluav taws kub tsis kam ntawm cov khoom siv hauv tsev. Kev lag luam kev cob qhia thiab warehouses yog cais los ntawm cov hluav taws kub phom sij, thiab qhov yuav tsum tau combustion kev ua tau zoo rau phab ntsa thiab ru tsev panels yog teev raws li. Feem ntau, cov kev cob qhia saum toj no Qeb C hluav taws kub yuav tsum muaj cov ntaub ntawv hauv chav kawm A lossis B1.
Teb chaws Europe siv EN 13501-1, nrog kev faib tawm A1, A2, B, C, D, E thiab F. Cov no tsis qhia ib-rau-ib rau Tuam Tshoj A, B1, B2, tab sis cov logic zoo ib yam. A1 thiab A2 sib haum rau cov tsis-combustible, B thiab C rau nplaim-retardant, D thiab E rau combustible. Cov haujlwm nyob sab Europe feem ntau xav tau cov pob zeb pob zeb kom ncav cuag A2-s1, d0 thiab PU panels kom ncav cuag B-s2, d0.
Ib feem ntawm Middle East thiab Southeast Asia siv cov qauv European lossis Asmeskas, thiab qee qhov kuj muaj lawv tus kheej txoj cai tiv thaiv pej xeem. Cov phiaj xwm hauv Saudi Arabia thiab UAE feem ntau xav tau Chav A lossis B1, raws li kev pom zoo tiv thaiv pej xeem hauv zos. Cov kev cai nyob rau sab hnub tuaj Asia feem ntau tsis nruj, txawm hais tias Singapore thiab Malaysia siv nruj dua cov kev cai tua hluav taws rau cov tsev siab thiab cov neeg coob coob.
North America siv ASTM E84 thiab UL 723, siv qhov ntsuas hluav taws xob sib kis thiab cov pa luam yeeb tsim ntsuas. Rockwool panels feem ntau ua tiav Class A (nplaim kis 0-25), thaum PU panels poob rau hauv chav kawm B. North American cov haujlwm tsom mus rau kev ua tau zoo ntawm kev tua hluav taws ntawm tag nrho lub rooj sib txoos dua li ntawm cov khoom tseem ceeb ntawm kev ntaus nqi ib leeg.
Ua ntej yuav khoom, paub meej tias qhov hluav taws kub code yuav tsum tau ntawm qhov project qhov chaw, ces xaiv lub vaj huam sib luag ntsuas. Daim ntawv tshaj tawm Suav B1 yuav tsis raug lees txais rau Middle East project; daim ntawv tshaj tawm European A2 tsis phim rau North American tus qauv txheej txheem. Xaiv qhov kev ntaus nqi raws li cov cai uas qhov project tau tsim, tsis yog raws li qhov kev tshaj tawm tus neeg muag khoom tshwm sim muaj nyob ntawm tes.
