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Konkire ndizomwe zimagwiritsidwa ntchito kwambiri pomanga, ndipo dziko langa ndilomwe limagwiritsa ntchito konkire kwambiri padziko lonse lapansi.Monga mtundu wosakanikirana wa konkire, chochepetsera madzi chimakhala ndi mbiri yazaka makumi angapo chabe, koma liwiro lake lachitukuko ndilofulumira kwambiri, ndipo limagwira ntchito yofunikira kwambiri pakupanga teknoloji ya konkire yamphamvu kwambiri komanso yogwira ntchito kwambiri.

 

Kuyambira kubwera kwa polycarboxylate superplasticizer m'zaka za m'ma 1980, chifukwa cha ubwino wake wapamwamba monga mlingo wochepa, kusungirako bwino, ndi kuchepa kwa konkire, zakopa chidwi kwambiri ndi makampani, ndipo tsopano zakhala konkire yosakaniza yokonzeka.Mtundu waukulu wa wothandizira kuchepetsa madzi amagwiritsidwa ntchito kwambiri mu njanji zothamanga kwambiri, misewu yayikulu, milatho, tunnel, subways, nyumba zapamwamba ndi ntchito zina zazikulu za dziko, kuthetsa mavuto angapo aukadaulo.

 

Ngakhale chochepetsera madzi konkriti chili ndi chiyembekezo chamsika wotakata kwambiri, mawonekedwe ovuta a nyumba zamakono komanso malo omangira owopsa a kutentha kwambiri ndi kuuma kumapereka zofunika kwambiri pakugwirira ntchito kwa zida za konkriti, komanso chochepetsera konkriti chogwira ntchito kwambiri ngati Chatsopano. zinthu za mankhwala zikukumananso ndi mavuto aakulu a chilengedwe.Zomwe zikuchitika pano zapangitsa kuti magulu ofufuza ndi kupanga zochepetsera madzi konkriti mosalekeza apitilize kupanga luso pa zochepetsera madzi konkriti.

 

Ndi kukwezeleza kwakukulu kwaposachedwa kwa chitukuko cha nyumba, mayendedwe a njanji ndi ntchito zina zomanga mizinda komanso mwayi wapadziko lonse wa "Belt and Road" wadziko lino, wothandizira kuchepetsa madzi athandiza makampani a konkire ndikuyambitsa masika ake.Kwa nthawi yayitali m'tsogolomu, ma polycarboxylate superplasticizers adzakhala ndi udindo waukulu mu konkire yosakanizidwa bwino m'nyumba zapadera monga nyumba zapamwamba kwambiri komanso malo akuluakulu komanso m'madera ovuta monga kutentha kwambiri.

 


Nthawi yotumiza: Sep-07-2022