Usuku lwePost: 8, Jul, 2024
1. Izinga lokuncishiswa kwamanzi liyashintsha lisuka phezulu liye phezulu, okwenza kube nzima ukulawula ngesikhathi sephrojekthi.
Izinto zokuphromotha zama-polycarboxyylic acicis acid acid acicing agents zivame ukukhuthaza imiphumela yazo enkulu kakhulu yamanzi - njengamanje amanani ancishisiwe amanzi angama-35% noma angama-40%. Kwesinye isikhathi izinga lokunciphisa amanzi liphezulu kakhulu lapho lihlolwe elabhorethri, kepha uma lifika esizeni sephrojekthi, kuvame ukumangaza. Kwesinye isikhathi izinga lokunciphisa amanzi lingaphansi kwama-20%. Eqinisweni, izinga lokunciphisa amanzi liyincazelo eqinile. Kubhekiswa kuphela ekusetshenzisweni kwe-Benchmark Cument, isilinganiso esithile sokuxubana, inqubo ethile yokuxuba, kanye nokulawulwa kokhonkolo kuya ku- (80 + 10) mm ngokuya nge- "conkste admixtures" ejwayelekile. idatha ilinganiswa ngaleso sikhathi. Kodwa-ke, abantu bahlala besebenzisa leli gama ezikhathini eziningi ezahlukene ukucacisa umphumela wokunciphisa amanzi kwemikhiqizo, okuvame ukuholela ekungaqondini.
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Ukuze ulungiselele ukhonkolo wamandla aphezulu bese wehlisa isilinganiso samanzi, ubunjiniyela kanye nabasebenzi bezobuchwepheshe bavame ukudinga ukukhuphula ngokuqhubekayo inani le-ejenti ye-polycarboxylate agent ukuze uthole imiphumela emihle. Kodwa-ke, umphumela oncishisiwe wamanzi we-polycarboxyylic acid-based acid-e-agent esuselwa ku-agent-acijile kakhulu emthanjeni wawo. Ngokuvamile, njengoba umthamo we-ejenti yokunciphisa amanzi uyakhuphuka, izinga lokunciphisa amanzi liyanda. Kodwa-ke, ngemuva kokufinyelela umthamo othile, umphumela oncishisiwe wamanzi noma "uyancipha" njengoba umthamo uyanda. Lokhu akusho ukuthi umphumela wokunciphisa amanzi uyancipha lapho umthamo ukhuphuka, kodwa ngoba ukopha okukhulu kwenzeka kukhonkolo ngalesi sikhathi, inhlanganisela ekhonkolo inzima ukuboniswa yindlela ye-slump.
Ukuze uqinisekise ukuthi imiphumela yokuhlola ye-polycarboxyylic acid superplastimizer imikhiqizo yonke ihlangabezana namazinga, umthamo womkhiqizo ochazwe lapho ukuhambisa ukuze kuhlolwe akunakuphakama kakhulu. Ngakho-ke, umbiko wokuhlola ikhwalithi yomkhiqizo ukhombisa kuphela idatha ethile eyisisekelo, kanye nomphumela wohlelo lokusebenza lomkhiqizo kumele ususekelwe emiphumeleni yangempela yokuhlola yephrojekthi.
3. Ukhonkolo olungiselelwe nge-ejenti ye-polycarboxylate enciphisa amanzi ngokujulile.
Izinkomba ezibonisa ukusebenza kwezingxube zokhonkolo zivame ukufaka i-fluority, ukubumbana nokugcinwa kwamanzi. Ukhonkolo olungiselelwe nge-polycarboxylic acid-based maxixicing admixtures ayihlangabezani ngokuphelele nezidingo zokusebenzisa, nezinkinga zohlobo olulodwa noma enye evame ukwenzeka. Ngakho-ke, ekuhlolweni kwangempela, sivame ukusetshenziselwa ukuvezwa okukhulu kwedwala nokuqothuka, ukopha kanzima nokuhlukaniswa, ukugcwala kanye nokwehla kanye nokwehla kokusho kahle ukusebenza kwezingxube zokhonkolo. Izakhiwo zokuhlanganiswa kokhonkolo ezilungiselelwe kusetshenziswa iningi lama-polycarboxbylic acid acid agences acijile agents azwela kakhulu ukusetshenziswa kwamanzi.
Kwesinye isikhathi ukusetshenziswa kwamanzi kukhuphuka kuphela (1-3) kg / m3, kanti ingxube ekhonkolo izophatheka ngokungathi sína. Ukusebenzisa lolu hlobo lwengxube akunakuqinisekisa ukufana kokuthulula, futhi kuzoholela kalula ekuphepheni, kwandile, kanye nezimbobo ebusweni besakhiwo. Izinkinga ezinjalo ezingamukeleki ziholela ekunciphiseni amandla nokuqina kwesakhiwo. Ngenxa yokulawulwa kwe-LAX kokutholwa nokulawulwa kokuqukethwe komswakama okuhlanganisiwe eziteshini zokuxuba kokhonkolo zezohwebo, kulula ukwengeza kakhulu lapho kukhiqizwa, okuholela ekukhiqizweni kwe-combate.
Isikhathi sePosi: Jul-08-2024