I-Hydroxypropylm methylcellulose iyindawo esondelana yamanzi polymer, eyaziwa nangokuthi i-resin engenamanzi ye-resin noma i-polymer engenawo amanzi. Kuyakhala le ngxube ngokwandisa i-viscosity yamanzi okuxuba. Kuyinto yezinto ezibonakalayo ze-hydrophilic polymer. Ingachithwa emanzini ukwakha isisombululo noma ukusakazwa. Ukuhlolwa kukhombisa ukuthi lapho inani le-superplastizer elisuselwa ku-naphthaalizer likhuphuka, ukufakwa kwe-superplastimizer kuzonciphisa ukumelana nokuhlakazwa kodaka olusanda kuxutshwa. Lokhu kungenxa yokuthi i-naphthalene superplastizer iyi-surving. Lapho amanzi encoma i-ejenti yengezwa ku-datar, i-ejenti yokunciphisa amanzi ihlelwe ebusweni bezinhlayiya zensimbi, ukuze ingaphezulu lezinhlayiya zensimbi linecala elifanayo. Lokhu kudalulwa kukagesi kuhlukanisa isakhiwo se-flocculation okwakhelwe yizinhlayiyana zikakonisi, futhi amanzi asongwe esakhiweni ayadedelwa, okuholela ekulahlekelweni kwengxenye kasimende. Ngasikhathi sinye, kwatholakala ukuthi ngokwanda kokuqukethwe kwe-HPMC, ukumelana nokuhlakazwa kosimende omusha ngodaka kwaba ngcono futhi kube ngcono.
Amandla wezakhiwo zikakhonkolo:
I-HPMC engaphansi kwamanzi ngaphansi kwamanzi angafani namakhonkolo asetshenziswa ku-Highway Bridy Foundation Engineering, kanye ne-Design Atlevel Level yi-C25. Ngokusho kwesivivinyo esiyisisekelo, inani lesimende lingu-400kg, inani le-MicroSILICA liyi-25KG / M3, inani elifanele le-HPMC lingu-0.6% wesamba sikasika, isilinganiso sesihlabathi singu-40%, Futhi ukuphuma kweNaphthyl Superplastimizer kungu-8% wenani lesimende. , Amasampula ukhonkolo asemkhathini izinsuku ezingama-28 anamandla aphakathi we-42.6MPA, kanye nokhonkolo othululelwe ngaphansi kwamanzi izinsuku ezingama-28 nge-60mm enamanzi aphakathi ne-36.4 MPA.
1. Ukungezwa kwe-HPMC kunomthelela wokubuyisa okusobala kwingxube yodaka. Ngokukhuphuka kokuqukethwe kwe-HPMC, isikhathi sokubeka udaka kancane kancane. Ngaphansi kokuqukethwe okufanayo kwe-HPMC, udaka owakhiwe ngaphansi kwamanzi ngaphansi kwe-Underwater ungcono kunodaka olwakhiwe emoyeni. Isikhathi sokuqina sokubumba isikhathi eside. Lesi sici sisiza ukupompa ukhonkolo ngaphansi kwamanzi.
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I-3. Okuqukethwe kwe-HPMC kanye nokufunwa kwamanzi kodaka kuncishiswe kuqala bese kukhula kakhulu.
4. Ukufakwa kwamanzi okunciphisa amanzi kuthuthukisa inkinga yokwanda kwesidingo samanzi sodaka, kepha kufanele kulawulwe ngokunengqondo, uma kungenjalo kuzonciphisa ukumelana kwamanzi angaphansi kwamanzi.
5. Unomehluko omncane ekwakhekeni kwesibonakaliso sokunamathisela usimende esixutshwe ne-HPMC kanye ne-brancimen engenalutho, futhi kunomehluko omncane kwisakhiwo kanye nobuningi besikhumba sosenti lokunamathisela amanzi nomoya. Isampula esungulwe ngemuva kwezinsuku ezingama-28 ngaphansi kwamanzi akhululekile kancane. Isizathu esiyinhloko ukuthi ukungezwa kwe-HPMC kunciphisa kakhulu ukulahleka nokuhlakazeka kukasimende ngesikhathi sokuthulula emanzini, kodwa futhi kunciphisa ukuhlanganiswa kwetshe lesimende. Kuphrojekthi, inani le-HPMC kufanele lincishiswe ngangokunokwenzeka ngenkathi liqinisekisa umphumela wokungahlakazwa ngaphansi kwamanzi.
I-6. Inhlanganisela ye-HPMC engaphansi kwamanzi ngaphansi kokuhlanganiswa kokhonkolo okungafani, ukulawulwa kwenani kuyakhohlisa ukuthuthuka kwamandla. Amaphrojekthi we-Pilot akhombise ukuthi ukhonkolo owakheka emanzini unesilinganiso samandla esingu-84.8% walowo owakhiwe emoyeni, futhi umphumela ubaluleke kakhulu.
Isikhathi sePosi: Jun-16-2023