Cov khoom siv txiav txim siab qhov nyuaj ntawm kev sib khi. Gypsum hmoov (feem ntau yog calcium sulfate) thiab PVC (polyvinyl chloride) zoo li ob tug kwv tij uas muaj kev sib txawv ntawm tus kheej: Lub qub yog ntxeem tau thiab nqus tau zoo li daim txhuam cev, thaum lub tom kawg yog du thiab tsis muaj dej zoo li lub tsho tiv no. Qhov sib txawv tseem ceeb no txhais tau hais tias cov gypsum mortar zoo tib yam tsis tuaj yeem nkag mus rau PVC nto, thiab nws yooj yim tev tawm hauv tag nrho cov khoom tom qab ziab. Cov kev sim qhia tau hais tias lub zog sib txuas ntawm PVC tsis kho thiab gypsum yog tsawg dua 0.1 MPa, txhais tau tias nws yuav sib cais nrog me ntsis pry.
Peb txoj kev daws teeb meem kom kov yeej kev sib koom ua ke tsis muaj zog:
Kev kho deg roughening: Xuab zeb PVC kom txog thaum nws yog matte los ua kom cov neeg kho tshuab adhesion.
Cov nplaum nruab nrab: Siv epoxy resin ua "tus neeg nruab nrab," siv PVC ua ntej, ces npog nrog gypsum.
Hloov kho cov mis gypsum: Ntxiv latex hmoov (5% -8%) los txhim kho kev yooj yim thiab adhesion.
Tswv yim DIY tswv yim rau kev siv hauv tsev: Koj puas xav kho qhov sib txawv ntawm PVC cov kav dej thiab cov phab ntsa gypsum? Sim no "kev kho hauv tsev": Sib tov PVC- cov nplaum tshwj xeeb nrog gypsum hmoov hauv qhov sib piv 1: 3, thiab nyem rau hauv qhov sib koom ua ke zoo li lub hnab ntim khoom. Xyuas kom muaj qhov cua zoo rau 24 teev. Cov sib tov kho yuav tiv taus me me vibrations tsis tawg los yog ntog. Cov lus ceeb toom tseem ceeb: Txoj kev no tsuas yog tsim nyog rau cov uas tsis yog -load- cov kab mob; Cov qauv tseem ceeb tseem xav tau cov nplaum tshwj xeeb.
