Hauv kev tsim kho, cov ntaub ntawv rwb thaiv tsev ntawm lub hnab ntawv sab nraud yuav tsum tau txiav txim siab raws li qhov yuav tsum tau ua ntawm cov qauv tsim. Txhua yam ntaub ntawv rwb thaiv tsev yuav tsum muaj daim ntawv pov thawj Hoobkas lossis cov ntawv xeem ntawm cov ntsuas ntsuas. Thaum tsis muaj daim ntawv pov thawj ntawm lub Hoobkas lossis cov ntawv xeem, nws yuav tsum tau ua qauv thiab kuaj, thiab nws cov indexes cuam tshuam yuav tsum ua tau raws li qhov yuav tsum tau ua.
Nrog rau txoj kev loj hlob ntawm Tuam Tshoj lub tsev txuag hluav taws xob ua haujlwm, ntau yam khoom siv hluav taws xob rwb thaiv tsev tau tshwm sim, thiab qee cov ntaub ntawv thermal rwb thaiv tsev tau maj mam tshem tawm ntawm kev ua lag luam vim lawv lub zog txuag thiab thermal rwb thaiv tsev ua haujlwm. Kev xaiv cov ntaub ntawv thermal rwb thaiv tsev tsim nyog tuaj yeem ua tsis tau tsuas yog ua tiav lub hom phiaj ntawm kev txuag hluav taws xob thiab kev txuag hluav taws xob, tab sis kuj ua rau lub neej ntev ntawm lub tsev, thiab lwm yam cuam tshuam los yog txo lub neej ntawm lub tsev.
Raws li kev siv sib txawv ntawm cov khoom siv rwb thaiv tsev hauv lub hnab ntawv, nws tau muab faib ua cov ntaub ntawv rwb thaiv tsev sab hauv thiab cov ntaub ntawv thaiv phab ntsa sab nraud; Raws li lub xeev sib txawv ntawm cov khoom siv hluav taws xob txuag hluav taws xob, nws tau muab faib ua board (khoom) cov ntaub ntawv rwb thaiv tsev thiab slurry rwb thaiv tsev cov ntaub ntawv.
Phaj thermal insulation khoom
Board thermal rwb thaiv tsev cov ntaub ntawv, kev siv ntawm cov cheeb tsam thiab cov Scope yog kuj dav, yuav siv tau nyob rau hauv lub sab nrauv phab ntsa rwb thaiv tsev project, kuj yuav siv tau nyob rau hauv lub sab nrauv phab ntsa hauv rwb thaiv tsev project. Cov rwb thaiv tsev tseem ceeb ntawm cov khoom siv rwb thaiv tsev tuaj yeem yog cov khoom sib txawv xws li foamed polystyrene board, extruded polystyrene board, pob zeb wool board, iav ntaub plaub board thiab hais txog.
Cov ntaub ntawv rwb thaiv tsev tuaj yeem muab faib ua ib qho khoom siv rwb thaiv tsev thiab cov khoom siv rwb thaiv tsev, thiab cov teeb meem hauv qab no yuav tsum raug sau tseg hauv cov txheej txheem thov:
A: Ib qho khoom siv thermal rwb thaiv tsev.
Nws yog lub cev tseem ceeb ntawm kev rwb thaiv tsev daim ntawv thov, thiab nws xav tau kev koom tes ntawm lwm cov ntaub ntawv hauv cov txheej txheem ntawm kev siv. Xws li: foamed polystyrene board, extruded polystyrene board, pob zeb wool board, iav ntaub plaub board, thiab lwm yam. Cov ntsiab lus hauv qab no yuav tsum tau sim ua ntej siv:
1, Thermal conductivity: qhov kev ntsuas qhov ntsuas no yog qhov tseem ceeb ntawm qhov kev cuam tshuam ntawm kev cuam tshuam ntawm qhov project, feem ntau, kev kuaj sim yog kuaj thaum lub phaj qhuav kom qhov hnyav tas li, thiab daim ntawv thov ntawm cov khoom siv hauv huab cua muaj qee yam. humidity tej yam kev mob, yog li ntawd, kev siv ntawm ib co coefficient rau multiply; los yog, ncaj qha kho cov khoom siv rau kev siv ib puag ncig kev sim.
2, pom meej ntom ntom (kg / m3): Qhov pom tseeb ntawm cov khoom siv ua rau muaj tseeb, thiab cov khoom siv tsis tsim nyog, xws li lub zog, seem ruaj khov, lwm.
3, Compression zog (MPa): hais txog compression kev nyuaj siab ntawm cov qauv hauv qab 10 feem pua deformation. Nws muaj feem xyuam rau lub durability thiab cuam tshuam tsis kam ntawm txheej txheej txheej txheej.
4, Qhov hloov pauv loj (hli): Cov khoom siv nrog qhov loj me me hloov pauv yuav ua rau tawg ntawm txheej txheej ntawm lub cev.
5, Dej vapor kis coefficient: Qhov kev ua tau zoo no txiav txim siab qhov kev ua haujlwm ntawm dej vapor kis tau tus mob, thiab rau qee yam txiav txim siab qhov condensation ntawm phab ntsa saum npoo los yog tsis.
6, oxygen index: xav tau cov nplaim hluav taws kub, txwv tsis pub hluav taws tsis tuaj yeem ua tau raws li tus qauv.
B: Cov khoom siv rwb thaiv tsev
Cov ntaub ntawv rwb thaiv tsev yog hais txog ib qho khoom siv rwb thaiv tsev thiab lwm yam khoom siv sib xyaw ua ke thiab ua ib qho system, hu ua cov khoom siv rwb thaiv tsev. Cov ntaub ntawv rwb thaiv tsev uas twb muaj lawm yog raws li hauv qab no:
1. Sab nrauv phab ntsa rwb thaiv tsev: foamed polystyrene board (los yog extruded polystyrene board) ntxiv rau alkali-resistant iav fiber mesh ntxiv rau polymer mortar uas muaj nplaum, xws li tshwj xeeb Witt sab nrauv phab ntsa rwb thaiv tsev, Beijing nyob rau hauv kev tsim kho ntawm sab nrauv phab ntsa rwb thaiv tsev, Preswitt rwb thaiv tsev system, thiab lwm yam; Sab nrauv rwb thaiv tsev yuav tsum tau sim rau cov khoom hauv qab no:
a: tshav kub hloov coefficient: cov ntaub ntawv rwb thaiv tsev cov ntaub ntawv thiab cov qauv tseem ceeb tom qab cov nyhuv rwb thaiv tsev sib xyaw los ntawm
Kev tsim kho zoo thiab ib puag ncig kub thiab av noo ntawm qhov cuam tshuam thiab kev hloov pauv, yog li mus rau qhov chaw kuaj xyuas, tuav nws cov txiaj ntsig tiag tiag. Raws li Ministry of Construction "civil building energy-saving thermal design code" JGJ 26-95 thiab nyob ib ncig ntawm "cov cai" cov cai rau cov ntsuas, yuav tsum tsis txhob qis dua nws cov nqi txwv;
b: dej tsis kam, khov-thaw tsis kam, huab cua tsis kam, cuam tshuam tsis kam, cua siab tsis kam: raws li cov rwb thaiv tsev sab nraud, nws qhov chaw ncaj qha rau hauv kev sib cuag nrog rau sab nraud ib puag ncig yuav tsum tiv taus nag, khov-thaw, cuam tshuam thiab muaj zog cua thiab lwm yam tsis zoo, yog li ua ntej siv yuav tsum sim cov yam ntxwv saum toj no. Lub zog tensile ntawm alkali-resistant iav fiber mesh daim ntaub txhawb nqa lub rwb thaiv tsev sab nrauv yuav tsum siab tshaj 200N / cm, thiab lub zog tensile ntxiv tom qab alkali tsis kam yuav tsum tsis pub tsawg tshaj 150N / cm; lub 7-hnub tensile daim ntawv cog lus lub zog ntawm cov nplaum yuav tsum siab tshaj 1 Mpa, dej tsis kam, khov-thaw kuj tom qab tensile daim ntawv cog lus yuav tsum siab tshaj 0.9Mpa.
2. Internal rwb thaiv tsev: muaj foamed polystyrene board (los yog extruded polystyrene board) ntxiv rau daim ntawv-faced gypsum board; GRC rwb thaiv tsev board (cov plaub hau phom hom polystyrene board thiab cement mortar composite); pob zeb wool sandwich rwb thaiv tsev board; txhim kho cement polystyrene rwb thaiv tsev board, thiab lwm yam.
Internal rwb thaiv tsev yuav tsum tau kuaj: kub hloov coefficient, dej vapor permeability coefficient, dej nqus tus nqi, shrinkage tus nqi, oxygen index, rau tib yam li saum toj no.
