Idethi yokuthunyelwe:5,Sep,2022

Umthelela we-ejenti yokunciphisa amanzi ekuqhekekeni kokhonkolo onciphayo:

I-agent yokunciphisa amanzi i-admixture engangezwa ngesikhathi sokuxuba ukhonkolo ukunciphisa kakhulu noma ukunciphisa kakhulu amanzi okuxuba ukhonkolo, ukuthuthukisa uketshezi lwekhonkrithi, nokwandisa amandla okhonkolo. Ukuzijwayeza kuye kwafakazela ukuthi ngemva kokwengeza i-reducer yamanzi kukhonkolo, uma singekho isidingo sokwandisa amandla, inani le-samente lingancishiswa kakhulu, futhi ukuhlangana kokhonkolo kungathuthukiswa. Ngakho-ke, i-ejenti yokunciphisa amanzi iyingxenye ebalulekile yokwengeza kukhonkolo yezentengiselwano.

Ukuze kuthuthukiswe ngokuqhubekayo izinzuzo zezomnotho zekhonkrithi yezentengiselwano, abakhiqizi bakakhonkolo bathanda ukusebenzisa ama-ejenti okunciphisa amanzi anezindawo zokunciphisa amanzi aphezulu ukuze kuthuthukiswe amandla kakhonkolo noma ukunciphisa kakhulu inani likasimende nokunciphisa izindleko zokukhiqiza. Eqinisweni, lokhu kuwukungaqondi kahle okukhulu. Nakuba ukuncishiswa kwamanzi kunenzuzo ukuthuthukisa amandla okucindezela kakhonkolo, ukunciphisa amanzi ngokweqile kuzophinde kuthinte kabi amandla okuguquguquka kukakhonkolo. Nakuba inani elifanele lokunciphisa amanzi lizuzisa ukunciphisa izinga lokuncipha kokhonkolo, kufanele kuqashelwe ukuthi lapho uklama isilinganiso sokuxuba ukhonkolo, umsebenzi wokunciphisa amanzi wokwengeza i-ejenti yokunciphisa amanzi iye yacatshangelwa, futhi amanzi. -i-binder ratio ngokuvamile yakhelwe ukuba ibe phansi. Ukusetshenziswa kwamanzi kuzokwandisa ukuncipha kokuqina kukakhonkolo futhi kwandise izinga lokushwabana kukakhonkolo.

Nakuba amandla acindezelayo kakhonkolo wezohwebo enganciphi lapho okuqukethwe usimende kwehliswa kakhulu, amandla okuqina ayancipha ngokuncipha kwevolumu yetshe likasimende eliqinile kukhonkolo. Ngenxa yokuncipha kwenani likasimende, ungqimba lukasimende lukasimende luncane kakhulu, futhi kuzokwenzeka imifantu eminingi kukhonkolo. Yiqiniso, ama-micro-cracks anomthelela omncane emandleni okucindezela ukhonkolo, kodwa ithonya emandleni okuqina kanye nezinye izakhiwo zekhonkrithi azikwazi ukubukelwa phansi. Ukwehliswa okukhulu kwezinto zikasimende kuzophinde kuthinte imodulus enwebekayo kanye nokukhasa kukakhonkolo, okwenza ukhonkolo uthambekele kakhulu ekuqhekekeni.

Ukufingqa, lapho kukhiqizwa ukhonkolo wezohwebo, izinga lokuncishiswa kwamanzi okukhonkolo kanye nenani lezinto zikasimende kufanele kucatshangelwe ngokugcwele, futhi akukho kuncipha kwamanzi okungenamkhawulo noma ukunciphisa ngokweqile kwezinto zikasimende ezivunyelwe.