I-Hydroxypropylylylylylyl methyl cellulose ingathuthukisa ukumelana nokuhlakazwa kosimende

Ukumelana nokuhlakazeka kuyinkomba ebalulekile yezobuchwepheshe ukukala ikhwalithi ye-anti - ehlakazekile.Hydroxypropyl methyl celluloseiyingxenye ye-polymer encibilikayo yamanzi, eyaziwa nangokuthi i-resin engenamanzi noma i-polymer esolule. Kukhulisa ukungaguquguquki kwengxube ngokwandisa i-viscosity yamanzi okuxuba. Kuluhlobo lwe-hydrophilic polymer impahla, engachithwa emanzini futhi yakha isisombululo noma uketshezi olungafani. Izivivinyo zikhombisa ukuthi lapho inani le-Naphthalene System Superplastizer likhuphuka, ukwengeza kwe-superplastizer kuzonciphisa ukumelana nokuhlakazwa kosimende omusha. Lokhu kungenxa yokuthi i-naphthalalene chungechunge lokunciphisa amanzi aphezulu angesikhathi esiphezulu se-ejenti esebenzayo, lapho amanzi encoma i-ejenti engezwa ku-mender, ancishisele i-ejenti endaweni eyizinhlayiyana enesihlayiso esifanayo Ukwakheka kwezinhlayiya zosekhukhwini ezakhiwe ngokuhlukanisa, ukugoqa esakhiweni sokukhishwa kwamanzi, kuzodala ukulahleka kwengxenye kasimende. Ngasikhathi sinye, kutholakala ukuthi ngokwanda kokuqukethwe kwe-HPMC, ukuhlakazwa kwe-anti kodaka olusha lwamakhazithi kungcono futhi kungcono.

Izici Zokwenza ukhonkolo:

I-HPMC Underwater Admixive Admixture ahlukaniswayo eBridge Foundation Engineering ye-Expressway, kanye nebanga lamandla okuklama kwakungu-C25. Ngemuva kokuhlolwa okuyisisekelo, umthamo kasimende ngu-400kg, i-silica fuumule exubile ye-silica Feumu 25kg / M3,I-HPMCumthamo omkhulu u-0.6% wemithamo kasimende, isilinganiso samanzi samanzi singu-0.42, isilinganiso sesihlabathi singu-40%, i-Naphthalene Ukunciphisa amandla okunciphisa umthamo we-8%, i-concrete specinen e-air 28D, amandla aphakathi angu-42.6MPA, Amandla aphakathi we-Underwater athululelwe ukhonkolo ngokuphakama okungama-60mm emanzini angama-36.4mpa izinsuku ezingama-28, futhi isilinganiso samandla ngokhonkolo esakhiwe emanzini kanye nokhonkolo osungulwe ngo-84.8%, okukhombisa umphumela obalulekile.

1. Ukungezwa kwe-HPMC kunomthelela wokubuyisa okusobala kwingxube yodaka. Ngokukhuphuka komthamo we-HPMC, isikhathi sokubeka udaka siyenzeka njalo ngempumelelo. Ngaphansi kwesimo esifanayo somthamo we-HPMC, isikhathi sokusetha sikadaka ngaphansi kwamanzi isikhathi eside kunomoya. Lesi sici sizuzisa ukupompa kokhonkolo ongaphansi kwamanzi.

2, ihlanganiswe ne-hydroxypropyllll methyl cellulose yodaka olusha lwamanzi lunobumbano oluhle, cishe akukho nto eyeding.

I-3, umthamo we-HPMC kanye ne-Mortar Water Funch yehle kuqala bese inyuke kakhulu.

4. Ukufakwa kwamanzi okunciphisa amanzi kuthuthukisa inkinga yokwanda kwesidingo samanzi sodaka, kepha kufanele kulawulwe kahle, ngaphandle kwalokho kuzonciphisa ukumelana kwamanzi angaphansi kwamanzi.

5. Unomehluko omncane esakhiweni phakathi kwe-HPMC ehlanganisiwe usimende ama-slurry slurry ama-slurry kanye nezinhlamvu ezingenalutho, futhi kunomehluko omncane kwisakhiwo nokuhlangana phakathi kwamanzi athululelwe usimende kanye nomoya othululelwe usimende othululelwe khona usimende nomoya othululelwe amanzi okomoya kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululwe usimende othululile usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululelwe usimende kanye nomoya othululelwe usimende othululile usimende. I-28D Underwater yokubumba i-specimen ikhululekile kancane. Isizathu esiyinhloko ukuthi ukungezwa kwe-HPMC kunciphisa kakhulu ukulahleka nokuhlakazeka kukasimende ngesikhathi sokuthela amanzi, kepha futhi kunciphisa izinga lokusebenzisana nosimende. Kuphrojekthi, ngaphansi kwesimo sokuqinisekisa umphumela ongaphansi kwamanzi, inani lokuxuba le-HPMC lincishiswa ngangokunokwenzeka.

6, engezaI-HPMCNgaphansi kwamanzi akasabalalisi ukuhlangana kukakhonkolo, alawule inani lamandla amahle, iphrojekthi yokushayela ibonisa ukuthi isilinganiso samandla sokwakha ukhonkolo emanzini nokwakhiwa komoya kungu-84.8%, umphumela ubaluleke kakhulu.