Xijpeem kev kho zoo nyob hauv tsev, tom qab qee lub sijhawm nws yuav tsum tau kho tshiab. Thiab feem ntau tsis yog cov phab ntsa, tab sis lub qab nthab, raug kev txom nyem los ntawm lub sij hawm: cov xim ntawm cov kev hloov pauv, thiab cov pob txha uas tsis txhim kho tau rau ntawm lub qab nthab. Hauv cov cheeb tsam uas muaj kev puas tsuaj siab, cov kab nrib pleev hauv lub qab nthab los ntawm cov av qeeg tsis tuaj yeem pom tau thiab lwj qhov pom ntawm hoob tsev.
Yuav ua li cas kom npog qhov tawg ntawm lub qab nthab?
Kho cov kab nrib rau hauv qab nthab pib ntawm qhov qhib, lossis "txiav" qhov tawg. Cov txheej txheem no yog ua tiav kom cov kua haus, uas yuav kho los ntawm lub qab nthab, puv nkaus lub pob zeb thiab tsis tawm hauv cov voids hauv nws.
Kev kho kom haum cov txheej txheem ntawm lub qab nthab yog npaj los ntawm chalk thiab gypsum, los yog npaj txhij-tsim putty ntawm industrial ntau lawm yog yuav.
- cov khoom muaj npe tau muaj nws qhov zoo tshaj li tus kheej ua muab tshuaj txhuam los ntawm chalk thiab gypsum:
- kev tso zis nkaum nws qhov elasticity ntev (uas yog nws tus kheej tsis muab kab nrib pleb);
- qhov teeb meem zoo nkauj tiv thaiv kev tiv thaiv kev nkag mus ntawm kev ya raws (uas yog, nws kho qhov ntev ntawm qhov ntev ntawm daim ntawv zoo).
Cov theem ntawm kev kho ntawm cov raug tav tav:
- tawg qhib rau ib lub tob ntawm yam tsawg 3 hli;
- tawg kho nrog dej thiab ziab - yog nqa tawm nyob rau hauv thiaj li yuav tshem qhov tawg ntawm hmoov av;
- cov kab nrib me me uas muaj cov kab hauv ob peb txheej, maj, raws li qhov xub thawj tau qhuav;
- tob cracks rau pib yuav tau kaw nrog ib tug reinforcing Mesh, thiab twb rau nws kom plaster. Tom qab lub plaster dries, siv ib txheej theem ntawm putty (los yog sib xyaw qhuav sib xyaw rau saum qab nthab);
- Cov kauj ruam kawg yog polishing lub qab nthab nrog xuab zeb.
Yog tias muaj kev phom sij, uas yog qhov tseem ceeb tshaj plaws rau cov tswv tsev ntawm qhov chaw zaum kawg, nws yuav tsum siv los txhuam tus txhuam npuas los yog cov ntaub ntaw dej khi kom khij tob tob rau ntawm lub qab nthab.