Ukhonkolo uwukusungulwa okukhulu kwabantu. Ukuvela kukakhonkolo sekuqale ukuguqulwa emlandweni wokwakha umuntu. Ukusetshenziswa kwe-comscrete admixtures kuyinto engcono kakhulu ekukhiqizeni ukhonkolo.Ukuvela kokuvalwa kokhonkolo okuhlanganisiwe
Izitshalo zenze umkhiqizo wokhonkolo wokwakha ukhonkolo uqhubekele phambili emgwaqweni wokuthuthuka kwezimboni kanye nokulondolozwa. Lokhu kubeka nezidingo eziningi phambili ekuphathweni kwekhwalithi yokukhiqizwa kokhonkolo, okuholela ekuthuthukisweni okuphelele kwekhwalithi kakhonkolo eminyakeni yamuva. Ngasikhathi sinye, ngenxa yezinga eliphansi lobuchwepheshe bekhwalithi yokulawula kwekhwalithi kwezinye izitshalo ezilungiselelwe ngokhonkolo, ulethe izingozi ezifihliwe kwikhwalithi yephrojekthi, futhi kwavela. Ingozi yekhwalithi yobunjiniyela engahlangane nayo eminyakeni engaphezu kwengu-20 ibangele ukulahleka kwezomnotho okunamandla.
Izici eziphambili ezidala ukungahambelani phakathi kwama-admixtures no-CEEN:
Ukusebenza kokhonkolo kuxhomekekisa hhayi kuphela emsebenzini wezinto zokwakha, kepha futhi nokuguquguquka phakathi kwezinto zokwakha kanye nesilinganiso sokhonkolo. Ama-Admixtures (Amanzi anciphise) awahambisani nosimende, okungukuthi, ama-admixtures awathuthukisi kakhulu ukusebenza kosimende, ukulahleka kokhonkolo kukhulu kakhulu noma ukhonkolo kukhulu kakhulu, futhi ngisho nemifantu kungenzeka ukuthi yenzeke kumalungu enhlaka ekhonkolo.
Njengengxenye yesihlanu kakhonkolo, ama-admixture ama-akhawunti wengxenye encane, kepha inethonya elikhulu ekusebenzeni kokhonkolo, ongathuthukisa kakhulu isikhathi sokhonkolo futhi alungise ukusebenza kokwakha ukhonkolo noma izindleko zokonga . I-hydration reaction of usimende idinga ngaphansi kwama-25% amanzi esisindo sikama usimende, kepha lapho usimende ehlangana namanzi, izokwakha isakhiwo se-floccution ukusonga amanzi kuwo. Ukungezelelwa kwe-admixture kungaqondakaliswa ama-adsorption ebusweni bezinhlayiya zokwenza usimende, ukuze ingaphezulu lezinhlayiya zensimbi linecala elifanayo, elihlukaniswe ngenxa yomphumela we-poursion, ngaleyo ndlela ededela amanzi asongwe ngesakhiwo se-clement floccotion, ngakho-ke ukuthi amanzi amaningi angabandakanyeka ekuphenduleni kwe-hydration. , thuthukisa umsebenzi. Ubukhulu be-adsorption of cent izinhlayiya ekuhlanganiseni nasekulahlekelweni komphumela wokuhlanganiswa kukhombisa ukuvumelana nezimo zokuhlanganiswa kosimende.
Inkinga yokungalingani phakathi kwama-admixtures kanye nosimende kuyinkinga ekhathazayo kanye nekhanda kubo bonke abakhiqizi bekhonkolo bezentengiselwano. Ngemuva kokuthi inkinga yenzeke, ekugcineni kusolwa ngokuhlanganiswa. Ukungahambelani phakathi kokuhlanganiswa kanye nosimende kubangelwa ukuzihlanganisa uqobo. Izici zokwakheka kwekhwalithi nezekhemikhali, kepha isizathu esiyinhloko kwesinye isikhathi sihlobene nezici ezinjengesimende kanye nama-admixtures, ngabe zizovela i-superplastizer esekelwe e-polyplarboxylizer esuselwa ku-polyplarboxylizer noma i-polycarboxbylizer noma i-polycarboxbylizer esuselwa ku-superplastizer esuselwa ku-polyp
Isikhathi Sokuposa: Jul-19-2022
