Usuku lwePosi:30,Nov,2022

A. Amanzi anciphisa umenzeli

Okunye kokusetshenziswa okubalulekile kwamanzi okunciphisa amanzi ukunciphisa ukusetshenziswa kwamanzi ngokhonkolo futhi kuthuthukise uketshezi lukakhonkolo ngaphansi kwesimo sokugcina isilinganiso sokuhamba kwamanzi singahambi kahle, ukuze sihlangabezane nezidingo zokuhamba ngokhonkolo. Iningi lamanzi anciphise ama-admixtures anethango eligcwele. Uma umthamo ogcwele udluliwe, inani elinciphisa amanzi ngeke likhuphuke, futhi ukuphuma kokopha nokuhlukaniswa kohlukaniso. Umthamo ogcwele uhlobene nazo zombili izinto zokhonkolo eziluhlaza kanye ne-conkcrete mix.

 

1. Naphthalene superplastizer

Naphthalene superplastizerIngahlukaniswa imikhiqizo ephakeme yokuhlushwa (Okuqukethwe kwe-NA2SO4 <3%), okuqukethwe okuhlaselwa okuphakathi (NA1SO4 okuqukethwe 3% ~ 10%) nemikhiqizo yokuhlushwa ephansi (okuqukethwe kwe-NA1SO4> 10%> 10% Uhla lomthamo lwe-naphthalene chungechunge lokunciphisa amanzi Okuqukethwe okuqinile kwesixazululo ngokuvamile kungu-38% ~ 40%, inani lokuxuba lingu-1.5% ~ 2.5% wekhwalithi yoseyili, kanye nezinga lokunciphisa amanzi kungu-18% ~ 25% ~ 25%. I-Naphthalene Chungechunge Amanzi Okunciphisa Amanzi ayikhiphi umoya, futhi kunomthelela omncane ngesikhathi sokusetha. Ingahlanganiswa nge-gluconate ye-sodium, ushukela, i-hydroxycarboxylic acid kanye nosawoti, i-citric acid kanye ne-inorganic retardard, futhi nenani elifanele lomoya ongenisa umoya, ukulahleka kwe-slump kungalawulwa ngempumelelo. Ukungathandeki kochungechunge lwamanzi aphansi naphthalene lokunciphisa amanzi ukuthi okuqukethwe kwe-sodium sulfate kukhulu. Lapho amazinga okushisa ephansi kune-15 ℃, i-sodium sulfate crystallization yenzeka.

 

2. I-Polycarboxylic acid superplastimizer

I-Polycarboxylic acidUkuncipha kwamanzi kubhekwa njengesizukulwane esisha sokunciphisa amanzi aphezulu, futhi abantu bahlala belindele ukuthi kuphephe, kuphumelele kakhulu futhi kuvumelana nezimo ngaphezu kwendabuko yendabuko yendabuko yokunciphisa amanzi. Izinzuzo zokusebenza zePolycarboxyylic acidy Uhlobo lwamanzi anciphisa i-ejenti ziboniswa ikakhulu ku: Ithango eliphansi (0.15% ~ 0.25% (ngokuvamile ama-25% Ukungena, nokuqukethwe okuphelele kakhulu kwe-alkali.

Kodwa-ke, ekusebenzeni,I-Polycarboxylic acidUkuncipha kwamanzi kuzophinde kuhlangane nezinkinga ezithile, njengokuthi: 1 2. Amanzi anciphisa imiphumela yokugcina ukugcinwa ancike kakhulu emthanjeni wamanzi anciphisa i-ejenti, futhi kunzima ukulondolozela ukuncipha komthamo ophansi; 3. Ukusetshenziswa kokuhlushwa okuphezulu noma okuphezulu kwekhonkolo eliphakeme kunenani elikhulu lokuhlanganiswa, okuzwela ukusetshenziswa kwamanzi, kanye nokuguquguquka okuncane kwamanzi ukusetshenziswa kungadala ushintsho olukhulu ku-slump; I-4. Kunenkinga yokuhambisana nezinye izinhlobo zamanzi anciphisa ama-ejenti namanye ama-admixture, noma kungabi namphumela omkhulu; 5. Kwesinye isikhathi ukhonkolo unamanzi amakhulu ekopha, okufakwayo komoya, nama-bubble amakhulu futhi amaningi; 6. Kwesinye isikhathi ushintsho lokushisa luzothinta umphumela weI-Polycarboxylic acidAmanzi anciphise.

Izinto ezithinta ukuhambisana kukasimende kanyeI-Polycarboxylic acidUkuncishiswa kwamanzi: 1 Lapho okuqukethwe kwayo kukhulu kune-8%, ukulahleka kokhonkolo kokwenyuka kokhonkolo; 2. Okuqukethwe okukhulu kakhulu noma okuncane kakhulu kwe-alkali kuzothinta kabi ukuhambisana kwawo; 3. Ikhwalithi empofu yokuhlanganiswa kosimende nayo izothinta ukuhambisana kwalokhu okubili; 4. Amafomu ahlukene we-gypsum; I-5. Usemende ophakeme wokushisa ungadala ukuhlelwa okusheshayo lapho izinga lokushisa lidlula ama-80 ℃; I-6. Usimende omusha unempahla eqinile kagesi kanye nekhono elinamandla lokuthola ukuncipha kwamanzi; 7. Indawo ethile engaphezulu kasimende.