Ekuqaleni, izingxube zazisetshenziselwa ukonga usimende kuphela. Ngokuthuthukiswa kobuchwepheshe bokwakha, ukungeza ama-admixtures kuye kwaba yisilinganiso esikhulu sokuthuthukisa ukusebenza kokhonkolo.
Izixube zikakhonkolo zibhekisela ezintweni ezengezwe ukuthuthukisa nokulawula ukusebenza kukakhonkolo. Ukusetshenziswa kwezingxube zikakhonkolo kubunjiniyela kuthola ukunakwa okukhulayo. Ukwengezwa kwezixube kudlala indima ethile ekuthuthukiseni ukusebenza kukakhonkolo, kodwa ukukhethwa, izindlela zokwengeza, nokuvumelana nezimo kwezixube kuzothinta kakhulu ukukhula kwazo.
Ngenxa yokutholakala kwezinto ezisebenza kahle kakhulu zokunciphisa amanzi, kusetshenziswe ukhonkolo omanzi, ukhonkolo ozihlanganisayo, kanye nokhonkolo olunamandla amakhulu; Ngenxa ye
ukuba khona kwama-thickeners, ukusebenza kokhonkolo ongaphansi kwamanzi kuye kwathuthukiswa. Ngenxa yokuba khona kwama-retarders, isikhathi sokumisa usimende seluliwe, okwenza kube nokwenzeka ukunciphisa ukulahleka kokuwohloka nokwelula isikhathi sokusebenza kokwakha. Ngenxa yokuba khona kwe-antifreeze, indawo yokuqandisa yesixazululo incishisiwe, noma ukuguqulwa kwesakhiwo se-ice crystal akubangeli ukulimala kwesithwathwa.
Amaphutha ekhonkrithi ngokwayo:
Ukusebenza kukakhonkolo kunqunywa isilinganiso sikasimende, isihlabathi, amatshe kanye namanzi. Ukuze kuthuthukiswe ukusebenza okuthile kukakhonkolo, ingxenye yezinto ezingavuthiwe ingalungiswa. Kodwa lokhu kuvame ukuholela ekulahlekelweni ngakolunye uhlangothi. Isibonelo, ukuze kwandiswe uketshezi lwekhonkrithi, inani lamanzi asetshenzisiwe lingakhuphuka, kodwa lokhu kuzonciphisa amandla okhonkolo. Ukuze kuthuthukiswe amandla okuqala kakhonkolo, inani likasimende lingandiswa, kodwa ngaphezu kwezindleko ezikhulayo, kungase kwandise ukushwabana nokukhasa kukakhonkolo.
Indima yezingxube zekhonkrithi:
Ukusetshenziswa kwe-concrete admixtures kungagwema amaphutha okukhulunywe ngenhla. Ezimweni lapho kunomthelela omncane kwezinye izakhiwo zekhonkrithi, ukusetshenziswa kwe-concrete admixtures kungathuthukisa kakhulu uhlobo oluthile lokusebenza kokukhonkolo.
Isibonelo, inqobo nje uma i-0.2% kuya ku-0.3% i-calcium lignosulfonate i-ejenti yokunciphisa amanzi yengezwa kukhonkolo, ukuwohloka kokhonkolo kungandiswa ngokuphindwe kabili ngaphandle kokwandisa inani lamanzi; Uma nje u-2% kuya ku-4% we-sodium sulfate calcium sugar (NC) i-ejenti eyinhlanganisela yengezwa kukhonkolo, ingathuthukisa amandla okuqala kakhonkolo ngo-60% kuya ku-70% ngaphandle kokwandisa inani likasimende, futhi ingathuthukisa amandla kakhonkolo sekwephuzile. Ukwengeza i-anti crack compactor kungathuthukisa kakhulu ukumelana nokuqhekeka, ukungakwazi ukungena kwamanzi, nokuqina kukakhonkolo, kuthuthukise ngokugcwele amandla esikhathi eside.
Isikhathi sokuthumela: May-29-2023
