Concrete parizvino ndiyo inonyanya kushandiswa zvivakwa zvekuvaka, uye nyika yangu ndiyo inonyanya kushandisa kongiri pasi rose.Semhando yemusanganiswa wekongiri, chinodzikisira mvura chinongova nenhoroondo yemakumi emakore akati wandei, asi kukurumidza kwayo kukurumidza kukurumidza, uye inotora basa rakakosha mukuvandudza tekinoroji yekongiri yakakwirira-yesimba uye yepamusoro-soro.

Kubva pakauya polycarboxylate superplasticizer mu1980s, nekuda kwezvakanaka zvayakanakira senge yakaderera dosi, yakanaka slump kuchengetedza, uye yakaderera kongiri shrinkage, yakwezva kutarisisa kwakawanda kubva kuindasitiri, uye ikozvino yave yakagadzirira-yakasanganiswa kongiri.Mhando huru yekudzikisa mvura inoshandiswa zvakanyanya munjanji dzinomhanya-mhanya, migwagwa mikuru, mabhiriji, tunnels, subways, zvivakwa zvepamusoro-soro uye mamwe mapurojekiti akakosha enyika, kugadzirisa nhevedzano yezvinetso zvehunyanzvi.

Kunyangwe kongiri inodzikisira mvura ine tarisiro yemusika yakafara kwazvo, chimiro chakaomarara chezvivakwa zvemazuva ano uye hutsinye hwekuvaka nharaunda yekushisa kwepamusoro uye kuoma kunoisa pamberi uye nepamusoro zvinodiwa pakuita kwekongiri zvinhu, uye yakakwirira-inoshanda kongiri inoderedza mvura seNyowani. zvinhu zvemakemikari zviri kutarisanawo nematambudziko makuru ezvakatipoteredza.Aya mamiriro azvino aita kuti tsvakiridzo nekugadzira zvikamu zvekongiri zvinodzikisira mvura kuti zvirambe zvichiita hunyanzvi hwekugadzira pane zvinoderedza mvura zvekongiri.

Nekusimudzirwa kukuru kwazvino kwekugadzirwa kwedzimba, njanji uye kumwe kuvaka kwemaguta uye nemukana wepasi rose we "Belt and Road" yenyika, mumiriri wekudzikisa mvura achabatsira indasitiri yekongiri uye kuunza chitubu chayo.Kwenguva yakareba yenguva mune ramangwana, polycarboxylate superplasticizers ichagara chinzvimbo chepamusoro mukongiri yakasanganiswa-yakasanganiswa muzvivakwa zvakakosha senge ekupedzisira-yakakwirira-inokwira zvivakwa uye ekupedzisira-mahombe spans uye munzvimbo dzakaomarara senge tembiricha yakakwira.