Ua ntej nrawm nroos, thaij sab nrauv los yog xaum qhuav, muaj kab lig kev cai lij choj los yog cov phab ntsa. Ntawm no, tib neeg muaj ob qho kev xaiv: siv gypsum board los yog tig mus rau ntau cov tshuaj plaster. Qhov kev xaiv thawj yog taw kev ceev nrooj heev thiab ib qho txiaj ntsim zoo dua nyob rau hauv qhov teeb meem ntawm kev tsim niches, ledges thiab ntau theem ceilings . Tab sis tib lub sij hawm, cov phab ntsa ntim tau txo qhov ntim ntawm chav tsev, ntshai kev tshauv thiab muaj lub neej luv ua haujlwm. Kuv yuav hais li cas txog plaster. Qhov no, tab sis nws yuav siv ntau lub sij hawm rau nruab, tab sis nws yuav pab ib si.
Niaj hnub nim no muaj ntau hom tshuaj pleev plhu, tab sis feem ntau pheej yig thiab feem ntau tseem cement plaster. Nws yog sib tov sib xyaw hmoov, uas yog lub hauv paus ntawm cov cement. Cement-based mixtures yog siv nyob rau hauv tag nrho cov cheeb tsam ntawm kev kho, vim lawv cov nqi raug them nqi tsawg dua 2-3 zaug dua cov ntaub ntawv zoo sib xws.
Maas sib tov rau plaster
Nyob ntawm tus proportions siv nyob rau hauv lub plaster thiab lub Cheebtsam ntawm sib tov yog muab faib ua ob hom:
- Maas-xuab zeb sib tov rau plaster. Lub ntsiab ntawm cov khoom muaj xuab zeb. Haum rau kev ntsuas ntawm phab ntsa sab hauv thiab cov façade, tshem tawm ntawm qhov chaw mus xoom. Tsis haum rau ib chav tsev nrog high humidity. Cov cement noj ntawm no yog tsawg heev, qhov kev faib ua feem ntawm 1: 5 yog tswj, uas yog, tib lub piv rau cov masonry. Qhov tsuas yog qhov sib txawv ntawm qhov sib xyaw ntawm qhov kev sib sau yuav tsum sib zog.
- Maas-kua txiv plaster. Lub ntsiab tivthaiv yog txiv qaub. Qhov proportions ntawm rho tawm yog raws li nram no: 20 kg ntawm txiv qaub, 280 kg ntawm xuab zeb, 50 l dej, 25 kg ntawm MAAs. Cov tshuaj no siv hauv cov chav uas muaj cov av qeeg (garages, kitchenware, cellars, bathrooms), raws li plaster tsis plam nws cov khoom thiab tsis crumble. Cement plaster nrog ib tug admixture ntawm txiv qaub yog tsim rau kawg cornices, socles thiab lwm qhov chaw uas plaster on xuab zeb muaj ib tug txo adhesion mus rau phab ntsa.
Cov ob hom plaster yog cov feem ntau siv nrog cov phab ntsa qub hauv tsev kho kom zoo nkauj. Lwm yam analogues (gypsum, acrylic, silicone plaster) muaj nqi ntau dua thiab tsis muab cov khoom lag luam tsim nyog tsim nyog. Lawv yog cov tsim kev kho kom zoo nkauj thiab kev ua haujlwm.
Plaster ntawm phab ntsa nrog cement mortar: cov cai
Cov kab sau raws li cov cement muaj nws tus kheej cov yam ntxwv zoo, tab sis lawv yog pom tseeb tsuas yog tias cov hauj lwm ntawm kev ua hauj lwm yog nruj me ntsis pom. Yog li, xuab zeb sib tov yuav tsum muaj ib qho me me, tsis yog qhov chaw yuav pom pom hloov, thiab yog hais tias dej ntau ntxiv rau kev daws, qhov zoo ntawm shrinkage thiab cov qib ntawm adhesion rau ntawm phab ntsa yuav tsis zoo. Kws txawj ntse txheeb xyuas seb muaj pes tsawg feem cuam tshuam rau qhov zoo ntawm plastering:
- Thaum tsis kub thiab ntub huab cua, nws tsis pom zoo kom ua haujlwm nrog sib tov;
- Nyob rau hauv cov ntawv tawm nws pom zoo kom ntxiv 10 grams zawv rau 10 liters ntawm sib tov (cov kab nrib pleb yuav raug muab tshem tawm);
- Tsis txhob hloov hauv cov thickness ntawm cov khaubncaws sab nraud povtseg ntawm ib phab ntsa;
- thib ob kneading yuav tsum tau ua nyob rau hauv tib lub piv li thawj, txwv tsis pub lub pob qij txha yuav pom thiab cov kab nrib pleb yuav tshwm;
- npaj cov cement mortar yuav tsum ciaj sia, tias tag nrho cov huab cua tshaj tuaj tawm;
- vim ntau cov ntsiab lus ntawm cov cement, txheej txheej sab nraud tuaj yeem muab cov kab nrib qis vim qis.
Cov kws txawj sib cav hais tias kom loj squares nws yog ntshaw kom siv plastering cov cav tov. Lawv yuav muab ib txheej ntawm plaster rau tag nrho cov phab ntsa sib piv nrog thiab nce cov khoom tsim tau ntawm daim ntawv thov los ntawm 5 zaug. Kev saib xyuas tshwj xeeb yuav tsum them nyiaj rau lub cement plaster rau chav dej. Nco ntsoov tias ua hauj lwm ntxiv rau kev nteg cov pobzeb tuaj yeem pib 3 lub lis piam tom qab daim ntawv thov zaum kawg. Nws yuav siv sij hawm ntau npaum li no kom zoo.
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