Cov txheej txheem:
Video: Lub qhov cub mortar siv sijhawm ntev npaum li cas kom qhuav?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
FIRE EXPOSURE Cua qhuav rau 1 txog 30 hnub. Cov khoom yuav tsum yog tack-free. Pib qhov hluav taws kub qis, ua kom kub qis dua 212oF (100oC) kom txog rau thaum lub mortar muaj qhuav kom huv si, feem ntau ib mus rau plaub teev. Ib zaug qhuav , nce cua sov rau 500oF (260oC) rau kev kho zaum kawg; cua sov rau 1-4 teev lossis ntau dua.
Kuj tseem paub yog, ntev npaum li cas cov tshuaj khib nyiab refractory siv kom qhuav?
Cov mortar xav tau qhuav tawm ua ntej kom raug hluav taws. Yog tias tsis kho kom tiav, cov khoom yuav tawg vim lub siab tshwm sim los ntawm cov dej evaporating nyob rau hauv lub mortar . Cia li tsawg kawg 7 mus rau 10 hnub ua ntej heatis thov.
Qhov thib ob, yuav siv sij hawm ntev npaum li cas ntawm cov cement siv los kho? Pob zeb thiab mortar ua nrog Portland cement , kho mus txog 60% ntawm tag nrho lub zog nyob rau hauv 24 teev thiab ze li ntawm tag nrho cov tus dej siv los sib tov tus mortar muaj tau siv nyob rau hauv tus "hydrolic", los yog tshuaj, tshuaj tiv thaiv.
Ib yam li ntawd ib tug yuav nug, ntev npaum li cas mortar qhuav ua ntej pleev xim?
Yog koj yuav tsum xim , muab cov mortar achance rau kho . Koj tus mason muab tswv yim zoo rau koj tos 28 hnub ua ntej tha xim tshiab mortar . Muab lub caij nyoog rau nws kho xyuas kom zoo xim daim ntawv cog lus. Thiab 28 hnub yog raws li qhov Cib Kev Lag Luam Association pom zoo.
Koj yuav kho li cas mortar?
Yuav ua li cas kho Mortar
- Maj mam qhuav ntawm cov mortar thaum ua hauj lwm nrog cib bysoaking lub cib ib hmos ua ntej siv lawv.
- Khaws lub mortar ntub los ntawm txau nrog lub hose txhua ob peb teev rau ob peb hnub.
- Khaws cov dej noo nyob rau hauv lub mortar los ntawm kev npog nws qhov chaw nrog ntub, nqus cov khoom xws li burlap lossis ib daim ntawv qub.
Pom zoo:
Masonry mortar siv sijhawm ntev npaum li cas kom qhuav?
Cib Mortar Nws yuav ncav cuag 60% ntawm nws lub zog hauv thawj 24 teev thiab yuav siv sijhawm txog 28 hnub kom ncav cuag nws lub zog kho tag nrho
Vulkem siv sijhawm ntev npaum li cas kom qhuav?
Nws yuav siv sij hawm li ib lub lis piam kom qhuav, thiab cov txheej txheem ziab qeeb no tuaj yeem yog ib qho laj thawj uas nws nyuaj heev: Vulkem 116 feem ntau kho ntawm tus nqi ntawm 1/16 'ib hnub ntawm 75 ° F (24 ° C) thiab 50% txheeb ze av noo. . Nws yuav tawv nyob rau hauv 5 teev thiab yuav tack dawb hauv 30 teev. Lub sijhawm kho yuav nce ntxiv thaum kub thiab / lossis av noo txo
Ntev npaum li cas nws thiaj siv cov pob zeb qhuav kom qhuav?
Cia cov ntawv thov tshiab qhuav qhuav. Lub sijhawm qhuav yuav sib txawv raws qhov kub, av thiab huab cua ntws. Hauv qhov xwm txheej zoo tshaj plaws, cov pob zeb yuav qhuav rau qhov kov hauv 15-20 feeb; Txawm li cas los xij, tag nrho lub sijhawm kho yog 24 teev. Rov ua dua yog xav tau ntau xim ntxiv
Lub pob zeb leveler siv sijhawm ntev npaum li cas kom qhuav?
Ib mus rau rau teev
Mortar siv sijhawm ntev npaum li cas kom qhuav rau lub caij ntuj no?
Yog tias huab cua qis dua 40 ° F (4.4 ° C) tsis pub dhau 24 teev rau mortar thiab 24-48 teev rau grout hydration ntawm cov cement yuav nres kom txog thaum kub kub txaus kom muaj dej ntxiv mus. qhuav tawm yuav cuam tshuam lub zog kho