Idethi Yokuthumela: 01, Nov, 2021

Isiteshi sokuxuba ukhonkolo lapho kulungiswa ukhonkolo, asikwazi ukwenza ngaphandle kwezinto ezintathu, inhlanganisela, impushana nezinto eziwuketshezi.Isithako esiyinhloko oketshezini oluwuketshezi amanzi nezithasiselo, aziyona ingxenye yokuzikhethela, kusukela kuyunithi yazo yesisindo esizimele ingabonakala, lokhu kuyingxenye eyinhloko yezidingo zokuxuba ukhonkolo.Futhi ukusetshenziswa kwe-ejenti yokunciphisa amanzi ku-admixture kusesimweni esibalulekile, ngakho-ke iyiphi i-ejenti yokunciphisa amanzi eyinhloko? Yiziphi izici?

Okokuqala, ake sikhulume nge-ejenti yokunciphisa amanzi kakhonkolo evame ukusetshenziswa:si-odiumni-aphthalenesi-lfonatei-ejenti yokunciphisa amanzi esebenza kahle kakhulu,i-polycarboxylic acidi-ejenti yokunciphisa amanzi esebenza kahle kakhulu futhii-agent yokunciphisa amanzi e-lignin.

Isodiumni-aphthalenesulfonate i-ejenti yokunciphisa amanzi ephumelelayo:lolu hlobo lwe-ejenti yokunciphisa amanzi luyi-chemical synthesis ye-non-air esebenza kahle yokunciphisa amanzi, ukuze izinhlayiya zikasimende zibe nomphumela oqinile wokuhlakazeka, ekucushweni kokhonkolo ogelezayo, kanye nezidingo ezinamandla zakuqala, zamandla aphezulu kakhonkolo okhonkolo kanye Ukwakhiwa kwangaphambi kokwakhiwa, ukusetshenziswa kwe-ejenti yokunciphisa amanzi kunomphumela omuhle kakhulu.Kungathuthukisa umsebenzi wengxenye ngayinye kakhonkolo ngokugcwele.Ukhonkolo oxutshwe yilolu hlobo lwe-ejenti yokunciphisa amanzi esetshenziswa kabanzi kumabhuloho, ama-DAMS, amachweba namadokodo, imigudu, amandla kagesi, ukongiwa kwamanzi namaphrojekthi wokwakha umphakathi kanye nezingxenye zokongiwa kwemvelo.

I-Polycarboxylicsi-uperplasticizer i-ejenti yokunciphisa amanzi esebenza kahle kakhulu: lolu uhlobo olusha lwe-ejenti yokunciphisa amanzi, eyaziwa ngele-“ideal” high performance concrete admixture, ingaxutshwa nezixube ezihlukahlukene zibe izixube ezisebenzayo eziningi, njenge-ejenti yokumpompa, i-ejenti yamandla yangaphambi kwesikhathi, i-anti-seepage agent,coagulant.Izinga lokunciphisa amanzi ngo-1%i-polycarboxylic acid superplasticizeringu-35%, futhi amandla okuqala akhuphuka ngaphezu kuka-50%.Ifaneleka ngokukhethekile ukhonkolo womlotha ohamba phezulu.

I-Lignosulphonate esetshenziswa njenge-ejenti yokunciphisa amanzi kakhonkolo ku-0.2-0.3%, inganciphisa ukusetshenziswa kwamanzi okuxutshwa kukakhonkolo ngo-10% -12%, yehlise isilinganiso sikasimende wamanzi, yonge usimende cishe ngo-10%, ithuthukise ikhono lokusebenza ukhonkolo, uketshezi nokumelana nokungena kwamanzi, ithuthukise amandla kakhonkolo futhi ukubumbana, okunomphumela wamandla okuqala, finyeza isikhathi sokusetha, thuthukisa amandla acindezelayo.Ngasikhathi sinye nciphisa ukulahleka kokhonkolo.

Hlobo luni lwe-admixture, ngokwezidingo zobunjiniyela bekhasimende uqobo, sivame ukuthi isiteshi sokuxuba ukhonkolo sobunjiniyela sinokuvumelana nezimo kangcono, ikakhulukazi ngoba ukukhetha kwe-admixture kusondele kakhulu kuphrojekthi, yingakho kunamaphrojekthi amakhulu azosebenza. sisatshala imali ekwakhiweni kwesiteshi esikhulu sokuxuba futhi singathengi ngokuqondile ukhonkolo webhizinisi.Isibonelo, imboni ekhona yokuxuba ujantshi wesivinini esiphezulu iklanyelwe ngokukhethekile amaphrojekthi kaloliwe wejubane eliphezulu.