Kodi kuika njerwa: ndizosowa luso

Posankha njerwa, kuwonjezera mtundu, kukula ndi wachabechabe, m'pofunika kuganizira mayamwidwe madzi, chisanu kukana ndi durability. M'pofunikanso kukumbukira kuti pomanga pafupifupi 20% ya buku la zomangamanga matope. Choncho ndi kofunika kulabadira. Amagwiritsidwa ntchito njira zomwe zakonzedwa mwa kusakaniza simenti ndi mchenga ndi kuwonjezera madzi. Childs, gawo limodzi la chigawo choyamba Chinawonjezeka magawo anayi a chachiwiri, chifukwa chiŵerengero zolondola zokhudza plasticity wa kusakaniza. Ndipo kuti kusintha mapangidwe a izo, anawonjezera dongo, laimu ndi plasticizers wapadera, zomwe ndi zofunika pa nyengo yozizira kuti kuchiritsa binders.

sayenda

Kodi kuika njerwa zomangamanga ndi kudziwa sayenda la mtondo kuti? Ndondomeko anachita ntchito Buku phirilo choviikidwa mwachindunji mu njira poyesedwa kenako penyani, chinayamba pa mozama zimene. Pakuti njerwa osakaniza abwino ndi asilikali pafupifupi 8 masentimita, ndi olimba - kuchokera masentimita 10 mpaka 14. Ngati yankho wakuda kwambiri, zikuoneka losweka pa nthawi, ndi madzi kwambiri ndidzadzaza voids njerwa ndi kusokoneza katundu chimateteza.

khalidwe

Kodi kuika njerwa ndi zomangamanga kuwunika ubwino wa chuma? The katundu waukulu umene kudziwa makhalidwe a mix - ndi homogeneity ndi plasticity. Pakuti kugwirizana bwino ndi bwino kusakaniza ndi chosakanizira magetsi kapena beater. N'zoona okonzeka yankho ndi kuika wosanjikiza zonyalazo chabwino, njerwa ndipo amachita ndi izo padziko lonse. Kupezeka kwa zipangizo yomanga aukhondo malo akuti kupanda sayenda wa osakaniza ndi kulephera ake kupasuka.

makulidwe

Pali Kusiyana angapo ntchito, limene makulidwe a njerwa za - kuchokera masentimita 12 mpaka 64. Komabe, khoma wakuda ndi uneconomical ndi zovuta inaimika. Choncho, kuchepetsa kulemera kwa dongosolo, ndi katundu pa maziko ndi kuchepetsa mowa njerwa kunja makoma zambiri inamangidwa ndi njerwa dzenje, kapena ngati mukuchita ndi chuma ndi wokhathamira pakati masamba opanda, amene anadzazidwa ndi kutchinjiriza.

Matabwa ndi ngodya

Kodi kuika njerwa ndi molondola tikuona kumathandiza kupeza ngodya zabwino molunjika ofukula? Funso ndi zovuta kwambiri, makamaka kwa omanga novice. N'kofunikanso kuti ayike mfundozo nyumbayi mu mzere molunjika ndi pa mlingo chomwecho. A mfundo yofunika kwambiri moyenerera apangidwe mzere woyamba wa njerwa ntchito chikombole kapena chingwe chachitali. kumathandiza kupeza ngodya zabwino evenness kutsimikizidwa gon ndi ofukula pamwamba - mlingo ndi chowongolera. Kamodzi zakhala zikuzunza m'miyoyo mizere angapo, grouting ikuchitika asanam'chiritse kusakaniza. Izi kwambiri, zimadalira yoyenera yomanga nyumba. Ntchito ndi jointing njira ndi kusindikiza pa zinthu n'kuupereka chitsanzo bwino. Iwo agawidwa mitundu iwiri: pustoshovka pamene pali kusiyana pakati pa njerwa, ndi undercut - njira chimadzaza danga pakati pa nkhaniyo nyumba ndi kupeza mlingo m'mphepete kutsogolo. Palinso kukongoletsa, concave ndi matabwa otukukira kunja.

njira zomangamanga

Kodi kuika njerwa ndi m'njira ziti? Taonani options ochepa: mu nip, mbuyo ndi mbuyo ndi yokonza. Yoyamba njira yabwino kwambiri ntchito ndi njira yovuta, ndipo mbamuikha wina ndi njerwa wotsatira ku m'mbuyomo. Zosinthika abutting ntchito kwa osakaniza makina, ndi momwe seams anapangidwa mu pustoshovku. Ndipo njira lachitatu - kumbuyo kwa kumbuyo ndi yokonza - Chili awiri amene m'mbuyomu. Pankhaniyi, ulusi ntchito makina kwambiri, ndi matabwa zooneka mu undercut. Kusintha khalidwe ndi mphamvu ya zomangamanga pogwiritsa kugwirizana anakhumba ndi yunifolomu ❖ kuyanika njira.