Usuku lwePost: 7, Novemba, 2022
Iqhaza Lama-Contcrete Admixtures ukuthuthukisa izakhiwo zokugeleza kokhonkolo futhi wehlise inani lezinto zokwakha ngokhonkolo ngokhonkolo. Ngakho-ke, ama-admixtures ukhonkolo asetshenziswa kabanzi ezinkundleni zokwakha ezahlukahlukene.
Indlela yokusebenza kwe-comfixtures ekhonkolo:
Ama-admixtures asetshenziswa kakhulu we-naphlaleneud admixytures kanye nama-polycarboxxylate-based admixtures angama-organic compounds anesisindo esiphakeme se-molecular (ngokuvamile 1500-10000) futhi ungowesigaba se-surficints.
I-molecule ye-surving inesakhiwo se-bipolar, i-One End yiqembu elingeyona eye-lipophilic (noma iqembu elingewona i-hydrophobic), kanti elinye ukuphela liyiqembu le-polar hydrophilic. Ngemuva kokuthi i-survitant ichithwe emanzini, ingadlala imisebenzi ehlukahlukene efana nokusakaza, imanzi, i-emulsuncief, ebulausing, nokugeza ngenkathi kunciphisa ukungezwani komhlaba.
A. Ukuhlakazeka-kwe-Adsorption
U-fluidity we-conkcrete ngxube incike ngenani lamanzi amahhala kukhonkolo. Ngemuva kokuthi inhlanganisela yengezwe kukhonkolo, izinhlayiya zosekhukhweni zazisana ngenxa yomunye ama-adsorption ama-molecule wokuhlanganiswa ebusweni bezinhlayiya zosekhulile, okuholela ekuphuthumeni ngogesi phakathi kwabo. Ngenxa yalokhu, ukwakheka kosimende kubhujiswa, futhi kukhululwa inani elikhulu lamanzi mahhala, elikhulisa kakhulu uketshezi lwengxube kakhonkolo.
B. Wetting
Ngenxa yokuhlelwa okuqondayo kwama-molecule ahlanganisiwe ngaphezulu kwezinhlayiya zosenyusi, kwakhiwa amafilimu wamanzi angenamikhawulo. Le filimu yamanzi inyusa indawo yokuxhumana phakathi kwezinhlayiya zikakonisi namanzi ngakolunye uhlangothi, futhi inomphumela othile omanzi ngakolunye uhlangothi. Ngakho-ke, usimende unama-hydrate ngokuphelele futhi amandla kasimende akhuphuka ngokushesha.
Imisebenzi eyisisekelo ye-compuixtures ekhonkolo:
1. Ngaphandle kokunciphisa ukusetshenziswa kwamanzi kweyunithi, isilinganiso se-manzi-bheri sihlala singashintshiwe, okuthuthukisa ukusebenziseka kokhonkolo okusha futhi kuthuthukisa ububi; Ngenxa yendawo ekhuphuke kakhulu yokuxhumana phakathi kwezinhlayiya zikakonisi namanzi, usimende unama-hydrate ngokuphelele, yize isilinganiso se-manzi-singrio esivalelekile, amandla kakhonkolo avame ukuthuthuka okuthile.
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Ungakuthola Kanjani Ukuze Uthole Ngokufanele KANYE NOKUSEBENZA ISIVIVINYO SOKUXHUMANA:
Ukuthenga kahle nokusebenzisa ama-admixtures kungakhiqiza inani elikhulu lezomnotho nezobuchwepheshe. Akunakuthuthukisa amandla kakhonkolo kuphela, kepha futhi kunciphisa izindleko zesilinganiso sekhonkrithi sokuxuba.
Indlela ethile imi kanjena:
a. Isixhumanisi sokuhlola
Ukuhlolwa nokuhlolwa kwezinkomba ezahlukahlukene zobuchwepheshe ze-Admixtures kuyinto eyisixhumanisi esibalulekile ngaphambi kokuthenga izingxoxo. Ngokuhlola, amazinga eziqu eziqu zezinkomba ezahlukahlukene zobuchwepheshe zokuhlanganiswa kufanele anqunywe. Kubandakanya okuqukethwe okuqinile kwama-admixtures, isilinganiso sokuncipha kwamanzi, ubuningi, ubisi lwe-slurry, isilinganiso sokunciphisa amanzi ngokhonkolo nezinye izinkomba zobuchwepheshe. Kuphakanyiswa ukuthi kusetshenziswe izinga lokuncipha kwamanzi ukhonkolo njengesikhombisi esingukhiye ukukala izinga lekhwalithi ye-admixtures.
b. Ukuthenga
Ngemuva kokuthi inqubo yokufaneleka ye-admixtures iyacaciswa, izingxoxo zokuthengwa kwempahla zingaqala. Kuphakanyiswa ukuthi abakhiqizi bokuhlanganiswa kufanele bameme amabhidi ngokuya ngezindinganiso ezifanelekile ezinqunywe nguvivinyo. Esikhathini esisezingeni eliphakeme lokuphikisana kokuhlanganiswa akuphansi kwezidingo zokubhida, umphakeli uzonqunywa ngokuya ngomgomo wokuwina ibhidi ngentengo ephansi.
Ngasikhathi sinye, ukukhethwa kwabakhiqizi bokuhlanganiswa kokhonkolo kufanele bacabangele ngokuphelele isikali soMkhiqizi woMkhiqizi, Ibanga Lokuhamba, Amandla Okuhambisa, Isipiliyoni Sokuhlinzekwa Kwekhwalithi Yezitshalo Ezikhulu Zokuxuba noma Amaphrojekthi Ezezimali Asezingeni Elikhulu kanye namazinga. Njengenkomba eyodwa yokuhlolwa komenzi.
c. Ukuvuma ukwamukelwa
Isiteshi sokuxuba kufanele sihlole ama-admixtures ngaphambi kokuba ama-admixsture agcinwe, futhi imiphumela yokuhlola ingafakwa kwisitoreji kuphela ngemuva kokuthi imiphumela yokuhlola ifanelekile ngokwezintambo ezisayinwe kwinkontileka. Kunconywa ukuhlukanisa phakathi kwezinkomba ezibalulekile nezinkomba zezethenjwa. Ngokusebenzisa isikhathi eside, umbhali ukholelwa ukuthi izinkomba ezibalulekile ze-admixtures zingamanani ancishisiwe amanzi (ngodaka) kanye nezinga lokunciphisa amanzi ekhonkolo; Izinkomba ze-Reference zingamandla adonsela phansi (amandla athile adonsela phansi), okuqukethwe okuqinile nobuningi be-cament paste. Ngenxa yesikhathi sokuhlola, izinkomba zezobuchwepheshe ezivivinywa kusixhumanisi sokwamukelwa yiyona density, uketshezi lokunamathisela usimende kanye nenani lokuncipha kwamanzi (ngodaka).
Isikhathi Sokuthumela: Nov-07-2022
