Nyob hauv lub ntiaj teb ntawm kev tsim kho kev tsim kho, feem ntau yog tsom mus rau theem pom: cov ncuav, cov xov, qhov kawg. Tsis tau, muaj qhov tseem ceeb, feem ntau saib xyuas cov txheej txheem uas tshwm sim hauv keeb kwm yav dhau los yog kev txiav txim siab ua cov khoom ua haujlwm ntev, ua rau muaj zog, kav. Tus txheej txheem no yogkev kho, thiab kev tsis saib xyuas nws muaj peev xwm cuam tshuam txawm tias tau muab tso rau hauv slab.
Ntau tus neeg yuam kev tsuas yog kho tau tsuas yog tos pob zeb kom qhuav. Nyob rau hauv kev muaj tiag, nws yog qhov sib txawv. Kho yog tus txheej txheem ua ntej ntawmTswj kom muaj dej noo ntxiv thiab kubnyob rau hauv cov pob zeb ua kom tso cai rau cov tshuaj lom neeg ntawmkev tib togtxhawm rau ua kom tiav. Thaum Maas thiab cov dej sib tov, lawv tsim ib qho kev khi hlua gel uas maj mam crystallizes rau hauv lub zog, interlocking matrix. Yog tias dej evaporates dhau sai los ntawm saum npoo, cov tshuaj tiv thaiv no plalls, tawm hauv cov pob zeb tsis muaj zog thiab ntxeem tau.
Tus nqi siab ntawm kev kho tsis raug
Ua tsis tau kho kom raug rau tus tswv tsev ntawm cov nqi thiab qhov tsis xws luag:
Txo lub zog & Dusting:Ib qho kev kho tsis tau zoo tuaj yeem poob li 50% ntawm nws lub zog muaj peev xwm. Qhov saum npoo ua tsis muaj zog thiab friable, ua rau "plua plav," qhov twg lub hmoov nplua yooj yim yaug underfoot.
Yas Shrinkage Nraj:Hauv thawj ob peb teev, noo noo kev poob haum ua rau lub ntsej muag nrawm dua li cov pob zeb tsis zoo dua li thaum ntxov {{hnub nyoog tawg.
Nce permeability:Ib qho nyob hauv {{{0} Cov nplaim pleev tau ntau dua, tso dej, thiab cov ntsev ua haujlwm tau yooj yim. Qhov no ua rau cov hlau rebar corrosion, khov {{}}}}}}}}}}}} attack attack attastening tus qauv lub neej.
Cov hau kev siv tau zoo rau cov txiaj ntsig zoo
Lub hom phiaj yog yooj yim: tiv thaiv kev poob dej noo poob. Cov txheej txheem nyob ntawm lub phiaj xwm txheej txheem thiab hom:
Dej kho:Txoj kev zoo tshaj plaws. Qhov no cuam tshuam nrog cov kaus hniav (dej nyab rau saum npoo), sprinkling, los yog npog cov slab nrog burline txuas ntxiv lossis mats. Qhov no yog ua tau zoo tab sis tuaj yeem tso dej - ntsh thiab impractical rau qee qhov chaw.
Noo noo -}} Tuav cov npog:Yas Sheeting lossis Cov Khaub Ncaws Uas Tsis Yooj Yim tau nteg ncaj qha rau ntawm cov qhob ua ntxoo. Qhov no yog qhov nrov, kev ua haujlwm {{{{{{{}} txuag cov kev xaiv, txawm hais tias nws tuaj yeem ua rau tsis meej yog tias tsis tau siv tusyees.
Kua membrane - nyeem cov tebchaw:Cov no tau txau -} ntawm cov tsho tiv no uas yog ib qho yeeb yaj kiab ib ntus, imperminable zaj duab xis nyob rau saum npoo. Lawv yog qhov zoo tshaj rau cov loj, tsis tau muab tshem tawm tab sis yuav tsum tau muab tshem tawm yog tias kev kho mob sab tom qab (zoo li lub topping lossis txheej) yog npaj.
Xaus: Kev nqis peev hauv kev thiav
Kev kho mob kom raug yog tsis yog kev xaiv tau ntxiv; Nws yog qhov kawg, tseem ceeb heev kauj ruam hauv kev tsim cov siab - ua tau zoo qhob. Qhov tsawg kawg peev hauv lub sijhawm thiab cov khoom siv uas yuav tsum muaj rau kev kho tau them cov nqi sib faib ua ke, ntau ruaj khov, thiab qis} Txij Nkawm, thiab qis} Txij Nkawm. Los ntawm kev muab cov dej ua kom lub sijhawm thiab noo noo nws xav tau, koj qhib tag nrho, muaj peev xwm zoo tshaj plaws ntawm lub ntiaj teb cov khoom siv tau ntau tshaj plaws.
