I-5. Izinkinga ngomthamo we-polycarboxylate ejenti yokunciphisa amanzi

Umthamo we-ejenti yokunciphisa amanzi e-polycarboxdate uphansi, izinga lokunciphisa amanzi liphezulu, futhi ukuncibilika kugcinwa kahle, kepha izinkinga ezilandelayo zivela esimweni:

① Umthamo uzwela kakhulu lapho isilinganiso samanzi-to-cement sincane, futhi sibonisa isilinganiso sokuncipha kwamanzi esiphakeme. Kodwa-ke, lapho isilinganiso samanzi-to-cement sikhulu (ngenhla kwe-0.4), izinga lokunciphisa amanzi kanye nezinguquko zalo azibonakali kakhulu, ezingahlobene ne-polycarboxylic acid. Umshini wokwenza i-Acid-based acid agence agent ehlobene nokusakazwa kwawo nokubuyiselwa komphumela ngenxa yokuvinjwa komphumela wokuvinjwa kwesihloko okusungulwe yisakhiwo se-molecular. Lapho isilinganiso se-manzi-sing sikhulu, kunezikhala ezinele phakathi kwama-molecule amanzi kuhlelo lokuhlakazeka kwesimende, ngakho-ke isikhala phakathi kwama-polycarboxylic acid acience accolecule Umphumela wokuvimba izithiyo ngokwemvelo.

② Lapho inani le-cemential material likhulu, ithonya lomthamo lisobala. Ngaphansi kwezimo ezifanayo, umphumela wokunciphisa amanzi lapho inani eliphelele le-cemential sejenti lingu- <300kg / m3 lincane kunesilinganiso sokuncipha kwamanzi lapho inani eliphelele le-cemential lisa ukuthi> 400kg / m3. Ngaphezu kwalokho, lapho isilinganiso samanzi samanzi sikhulu futhi inani lezinto ezibonakalayo lincane, kuzoba nomphumela ophakeme.

I-Polycarboxylate Superplastimizer yenzelwe ukhonkolo osebenza kahle, ngakho-ke ukusebenza kwayo kanye nentengo kulungele ukhonkolo osebenza kakhulu.

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Ama-polycarboxxylate agents anciphisa amanzi awanakuhlanganiswa nama-naphthalene asekelwe ekunciphiseni amanzi ancus. Uma ama-ejenti amabili anciphisa amanzi asetshenziswa emishini efanayo, bazoba nomthelela uma bengahlanzwa kahle. Ngakho-ke, kuvame ukudingeka ukusebenzisa isethi ehlukile yemishini yama-polycarboxyylic acid amanzi anciphisa ama-ejenti.

Ngokusho kwesimo sokusebenzisa samanje, ukuhambisana okuhlanganisiwe kwe-ejenti yokungena komoya kanye ne-polycarboxylate kuhle. Isizathu esiyinhloko ukuthi inani le-ejenti yokungena emoyeni liphansi, futhi lingaba "liyahambisana" ne-ejenti esuselwa kumanzi ye-polycarboxylic acid ukuze ihambisane. , ehambisanayo. I-Sodium gluconate ku-retarder nayo inokuhambisana okuhle, kepha ukuhambisana okungekuhle nezinye izengezo zikasawoti ze-inorganic futhi kunzima ukuyihlanganisa.

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Inani le-PH ye-polycarboxyylic acicing agents acid acid acid ukwedlula lelo lakwamanye ama-ejenti aphezulu ancishiswe amanzi, amanye awo angu-6-7 kuphela. Ngakho-ke, kudingeka ukuthi zigcinwe ku-fiberglass, ipulasitiki nezinye iziqukathi, futhi akunakugcinwa ezitsheni zensimbi isikhathi eside. Kuzodala ukuthi i-ejenti yokunciphisa amanzi e-polycarboxdate ukuze iwohloke, futhi ngemuva kokugqwala kwe-acid yesikhathi eside, kuzothinta impilo yesitsha sensimbi kanye nokuphepha kohlelo lokugcina nokuhamba.