Uyini umphumela we-hydroxypropylllyrlose methylcellulose ku-usimende kasimende?

I-Hydroxypropylm methylcellulose ingathuthukisa ukumelana nokuhlakazwa kosimende kasimende.

I-Hydroxypropylm methylcellulose iyindawo esondelana yamanzi polymer. Ngokuvamile kwandisa ukuvumelana kwengxube ngokwandisa i-viscosity yamanzi okuxuba. Ingachithwa emanzini ukuze kwakheke ikhambi elinamanzi elifanelekile. Kuyinto eyenziwe nge-hydrophilic polymer. Ngokuhlola, singathola ukuthi lapho inani le-superplastizer elisezingeni eliphakeme elisuselwa ku-superplastizer ku-Cement Data, ukufakwa kwe-superplastizer kuzonciphisa ukumelana nosimende ohlanganisiwe. Kungani kwenzeka lento enjalo? Lokhu kungenxa yokuthi i-Naphthalene-based Phenducted Water Surdicer Perfectiser Peagh-Water Perfecticer iyi-surviant. Lapho kusetshenziswa amanzi okunciphisa amanzi ngodaka kasimende, kuzothathwa ebusweni bezinhlayiya zokwenza usimende ukwenza ingaphezulu lezinhlayiya zensimbi zinecala elifanayo. Lokhu kudalulwa kukagesi kwenza izinhlayiya zosekhulelwe zikha isimo se-floccution of usimende, futhi amanzi asongwe esakhiweni akhishwa, okuzodala ingxenye yokulahleka kwesimende. Ngasikhathi sinye, kwatholakala ukuthi ngokwanda kokuqukethwe kwe-hydroxypropyllylylylylyllose, ukumelana nokuhlakazwa kosimende osanda kuxutshwa ngodaka kwaba ngcono futhi kube ngcono.

Izici Zokwenza ukhonkolo:

E-General Expressay Bridlity Engineering, izinga lamandla okuklama lingama-C25. Ngokusho kwesivivinyo esiyisisekelo, inani lesimende lingu-400kg, i-silica fume ehlanganisiwe yi-25kg / M3, isilinganiso esingu-40%, kanye nochungechunge lwesihlabathi lungu-0.6%, kanye nochungechunge lwe-naphthalalene lungu-0.6%, kanye nochungechunge lwe-naphthalalene lungu-0.4%, kanye nochungechunge lwe-naphthalalene lungu-0.6%, kanye ne-naphthalalene. I-concrete specimen emoyeni inamandla aphakathi we-42.6MPA izinsuku ezingama-28, futhi ukhonkolo ongaphansi kwamanzi ngokuphakama okungama-60mm izinsuku ezingama-28 kunamandla aphakathi we-36.4MPA. Isilinganiso samandla sokwakha emoyeni singama-84.8%, futhi umphumela uyamangalisa impela.

1. Ukungezwa kwe-hydroxypropylllylylylyly methylcellulose kunomthelela wokubuyisa okusobala odakeni. Ngokukhuphuka kokuqukethwe kwe-hydroxypropylllylylylyl fiber, isikhathi sokubeka kodaka sinwetshwa ngempumelelo. Endabeni yokuqukethwe okufanayo kwe-cellulose ether, kwakhiwa udaka ngaphansi kwamanzi kuzothatha isikhathi eside ukusetha kunalabo abakhelwe emoyeni. Lesi sici sizuzisa ukupompa kokhonkolo ongaphansi kwamanzi.

2. Okuqukethwe kwe-hydroxyproppropyllylylyl fiber kanye nokufunwa kwamanzi kodaka kuncishisiwe kuqala bese kwanda ngokusobala.

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4. Ukungeza i-hydroxypropylllrpropylyrpropylk ngaphansi kwamanzi okuhlanganiswa kwamanzi okungafani, okulawula umthamo kuyazuzisa amandla. Iphrojekthi ye-Pilot ikhombisa ukuthi isilinganiso samandla ukhonkolo okhethwe ngamanzi no-conkscrete akhiwe ngomoya angama-84.8%, futhi umphumela ubalulekile.

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6. Kunomehluko omncane esakhiweni phakathi kwesilinganiso sokunamathisela usimende oxutshwe ne-hydroxypropyllylkyll methylcellulose kanye ne-brank specimen, kanye nokwakheka kwesilinganiso somuthi othululelwe emanzini bese kuthelwa emoyeni akuhlukile kakhulu. I-specimen eyakhiwe ngaphansi kwamanzi izinsuku ezingama-28 i-crisp kancane. Isizathu esiyinhloko ukuthi ukungezwa kwe-cellulose ether kunciphisa kakhulu ukulahleka nokuhlakazeka kuka usimende lapho uthela emanzini, kodwa futhi kunciphisa ukuhlanganiswa kwetshe lesimende. Kuphrojekthi, ngaphansi kwesimo sokuqinisekisa umphumela wokungahlakazwa ngaphansi kwamanzi, umthamo we-cellulose ether kufanele uncishiswe ngangokunokwenzeka.