Timagwiritsidwa ntchito popanga njerwa monga chikhalidwe, chomwe akhala chikugwiritsidwa ntchito pomanga nyumba. Nthawi yasintha kumasulidwa kwake, kuimitsa ku miyezo. Tsopano tikukumana ndi njerwa yamakono , kusankha omwe akatswiri amatilangiza.
Mitundu yosiyanasiyana ya njerwa
- Ceramic njerwa . Zapangidwa ndi dongo ndi kuwonjezera kwa mitundu yambiri ya zowonjezera pogwiritsa ntchito njira yokwanira yogwiritsa ntchito. Njerwa yolimba ili ndi void yochepa, imakhala ndi mphamvu zamphamvu, kotero imagwiritsidwa ntchito kuyika makoma a mkati ndi kunja, kumanga zipilala ndi zinthu zina zothandizira. Zogulitsa, mosiyana ndi zamoyo zonse, n'zosavuta. Zimagwiritsidwa ntchito popanga mapepala ndi makoma opepuka. Mankhwala ambiri amachulukitsa chuma chake ndi kutsekemera kwa thupi.
- Njerwa ya silicate . Kachipangizo kogulitsa zinthu kumaphatikizapo kupezeka kwa zinthu monga mchenga ndi laimu ndi zochepa zazing'ono zomwe zimapangidwira. Zimatenga chinyezi bwino, zawonjezeka kwambiri ndipo zimakhala zochepa kuzizira, choncho zimafuna maziko abwino.
- Njerwa yamatsenga . Kuti apange, kuwombera sikufunika. Mitengo imapangidwa ndi kuthamanga kwapamwamba, zomwe zimapangitsa kuti thupi likhale lokongola komanso mawonekedwe abwino.
- Njerwa yapadera . Zapangidwira zochitika zapadera. Mwachitsanzo, makoma a zitsulo ndi zipilala zomwe zimayaka moto zimayikidwa ndi njerwa zosakaniza. Pa makampani opanga mankhwala amagwiritsira ntchito asidi osagwira mankhwala. Njerwa yachitsulo ndi yabwino kukonza njira m'munda, kukongoletsa nsanamira, khomo ndi mawindo.
Mitundu ya mawonekedwe a njerwa
- Zamagetsi ndi zosalala pamwamba . Njerwa iyi imapangidwa kukula kwake kapena kukula kwake. Zinthu zamtengo wapatali ndi zosaoneka bwino, zogawidwa bwino, zili m'mphepete mwachangu, zili ndi chisanu chotsutsana ndi kutentha kwa thupi.
- Njerwa yamanja . Ali ndi mpumulo kutsogolo, yomwe imagwiritsidwa ntchito musanayambe kuwombera. Nthawi zina njerwa yamoto imakongoletsedwa ndi zinyenyeswazi. Makhalidwe okongoletsa akukhala ndi mitundu ya njerwa, zomwe zimagwiritsidwa ntchito ndi engobe kapena mazira.
- Njerwa . Zambiri zamtunduwu zakhala zikuphatikizira ngodya, nkhope zam'mbali ndi zinthu zina zomwe zimathandiza kumanga zipilala, mabwalo ndi zinthu zina zokongoletsera popanda mavuto alionse.
Njerwa yosankhidwa bwino imakhala ngati lonjezo la kukhazikika kwa nyumba. Pali malemba omwe amadziŵitsa kuchuluka kwake. Kupitirira chizindikirocho, kumakhala bwinoko. Zida zamtengo wapatali zowonjezera zimapezeka pamene zipangizo zamakono zimaphwanyidwa ndi kutsekemera kapena kutentha.
