Ekuqaleni, ama-admixture asetshenziswa kuphela ukonga usimende. Ngokuthuthukiswa kwezobuchwepheshe bokwakha, ukwengeza ama-admixtures sekuyindlela enkulu yokwenza ngcono ukusebenza kokhonkolo.
I-Concrete admixtures ibhekisa ezintweni ezingezwe ukuthuthukisa kanye nokulawula ukusebenza kokhonkolo. Ukusetshenziswa kwe-comfice admixture in Engineering ukuthola ukunakwa okwandayo. Ukungezelelwa kwe-admixtures kudlala indima ethile ekwenzeni ngcono ukusebenza kokhonkolo, kepha izindlela zokukhetha, nezindlela zokungezwa kweziqubu kuzokuthinta kakhulu ukukhula kwazo.
Ngenxa yokutholakala kwamanzi aphezulu anciphisa amandla anciphisa ama-ejenti, ukhonkolo ophezulu, ukhonkolo ozinzile, nokhonkolo wamandla aphezulu. Ngenxa ye
Ukuba khona kwabakhulu, ukusebenza kokhonkolo ongaphansi kwamanzi sekuthuthukisiwe. Ngenxa yokuba khona kwama-retaarders, isikhathi sokusetha sika usimende seluliwe, senze sikwazi ukunciphisa ukulahleka kwe-slump futhi sinwebe isikhathi sokusebenza sokwakha. Ngenxa yokuba khona kwe-antifreeze, iphuzu elikhondayo lesisombululo sehlisiwe, noma ukwehluka kwesakhiwo se-ice crystal akubangeli ukulimala kwesithwathwa.
Ukulimala ku-concrete uqobo:
Ukusebenza kukakhonkolo kunqunywa ngesilinganiso sikasimende, isihlabathi, amatshe amatshe namanzi. Ukuze uthuthukise ukusebenza okuthile kokhonkolo, ingxenye yezinto zokusetshenziswa ezingavuthiwe ingashintshwa. Kepha lokhu kuvame ukuholela ekulahlekelweni ngakolunye uhlangothi. Isibonelo, ukuze ukhuphule uketshezi lukakhonkolo, inani lamanzi asetshenzisiwe lingandiswa, kepha lokhu kuzonciphisa amandla kakhonkolo. Ukuze uthuthukise amandla okuqala ngokhonkolo, inani leseyili lingandiswa, kepha ngaphezu kokwanda kwezindleko, kungakhuphula nasenkingeni nasekhonkolo kakhonkolo.
Indima ye-comfixtures ekhonkolo:
Ukusetshenziswa kwama-comscrete admixture kungagwema izinkinga ezichazwe ngenhla. Ezimweni lapho kunomthelela omncane kwezinye izakhiwo zikakhonkolo, ukusetshenziswa kwamalungelo obuthi ukhonkolo kungathuthukisa kakhulu uhlobo oluthile lokusebenza kokhonkolo.
Isibonelo, inqobo nje nge-0.2% kuya ku-0.3% Calcium Liglosulfonfonate Amanzi anciphisa i-ejenti angezwe kukhonkolo, ukuncibilika kokhonkolo kungandiswa ngaphezulu kwenani lamanzi; Inqobo nje uma u-2% kuya ku-4% sodium sulfate calcium ushukela (NC) i-ejenti ye-composite yengezwa kukhonkolo, ingathuthukisa amandla okuqala ngokhonkolo ngo-60% kuya ku-70% ngaphandle kokukhulisa amandla sekwephuze kokhonkolo. Ukungeza i-anti Crack Compactor kungathuthukisa kakhulu ukumelana nokuqhekeka, okungaphelele, nokuqina kokhonkolo, ukuthuthukisa ngokuphelele amandla esikhathi eside.
Isikhathi sePosi: Meyi-29-2023
