Usuku lwePost: 26, Feb, 2024
Izici ze-Retardar:
Kunganciphisa isilinganiso sokukhishwa kokushisa kwe-hydration kwemikhiqizo yokhonkolo yezentengiselwano. Njengoba sonke sazi, ukuthuthukiswa kokuqala kokhonkolo wezohwebo kuhlobene kakhulu nokuvela kwemifantu ngokhonkolo wezentengiselwano. I-hydration yokuqala ishesha kakhulu futhi izilinganiso zokushisa zishintsha ngokushesha okukhulu, ezingadala kalula ukuqhekeka ngokhonkolo kwezohwebo, ikakhulukazi ukhonkolo omkhulu wokuthengisa. Kusukela izinga lokushisa langaphakathi lekhonkolo yezentengiselwano likhuphuka futhi kunzima ukuqeda, umehluko omkhulu wokushisa phakathi ngaphakathi nangaphandle kuzoholela ekunciphiseni kukakhonkolo kwezohwebo, okuzothinta kakhulu ikhwalithi kakhonkolo. Kuthinta ikhwalithi kakhonkolo yezentengiso. I-retard yekhonkolo yezentengiselwano ingathuthukisa kahle lesi simo. Ingavimba isilinganiso sokukhishwa kokushisa kwe-hydration heration, yehlisa ijubane isilinganiso sokukhishwa kokushisa futhi sinciphise inani eliphakeme lokushisa, ukuvikela ngempumelelo ukwenzeka kokuqhekeka kwangaphambi kwekhonkolo.
Kunganciphisa ukulahleka kokhonkolo kwezohwebo. Ukuzilolonga kukhombisile ukuthi bangangezelela kakhulu isikhathi sokuqala ngokhonkolo. Ngasikhathi sinye, isikhathi sokuphumula phakathi kokuhlelwa kokuqala nokuhlelwa kokhonkolo kwezentengiso nakho okufushane, okungagcini nje ngokunciphisa ukulahleka kokhonkolo, kepha kungathinti amandla okuqala ngokhonkolo wezohwebo. ukukhuphuka. Inenani elihle elisebenzayo futhi liya ngokuya lisetshenziswa ekwakhiweni kokhonkolo kwezohwebo.
Umphumela ngamandla. Ngokombono wokuthuthukiswa kwamandla, amandla okuqala okuhweba okuhlanganiswe nokhonkolo kunciphise ukwedlula ukhonkolo ongafakwanga, ikakhulukazi amandla we-1D kanye nama-3D. Kepha ngokuvamile ngemuva kwezinsuku eziyi-7, bobabili bazovele bavale, futhi inani le-retarder elingeziwe lizokwenyuka kancane.
Ngaphezu kwalokho, njengoba inani lama-coagulant lifakwe ekwenyuseni ugongolo, amandla okuqala ancipha kakhulu futhi ukuthuthukiswa kwamandla kuthatha isikhathi eside. Kodwa-ke, uma ukhonkolo wezentengiselwano uxutshwe ngokweqile futhi isikhathi sokubekelwa kukhonkolo isikhathi eside, ukuhwamuka kanye nokulahleka kwamanzi kuzodala imiphumela yekhonkolo yezohwebo.
Ukukhetha i-retarder:
Ukhonkolo wezohwebo kanye nokhonkolo omkhulu wezohwebo olunentengiso othululelwe ngokuqhubekayo emazingeni okushisa aphezulu ngokuvamile kufanele athululelwe ezingxenyeni ngenxa yokuphazamiseka kwezigaba zesikhathi esisodwa noma ezinzima. Ukuqinisekisa ukuthi izingqimba ezingaphezulu nangaphansi zihlanganiswa kahle ngaphambi kokuhlelwa kokuqala, ukhonkolo wezentengiso uyadingeka ukuthi unesikhathi eside sokusetha kanye nezakhiwo ezinhle zokubuyisa.
Ngaphezu kwalokho, uma ukushisa kwe-hydration ngaphakathi kwekhonkolo yezentengiselwano kungalawulwa kahle, kuzovela imifantu yokushisa, ezokwehlisa ukukhuphuka kwezinga lokushisa. Ama-ejenti ajwayelekile asetshenziswa kaningi, ama-retadants, kanye nokubuyisa ama-ejenti anciphisa amanzi, njenge-citric acid.
Ikhonkolo yezentengiso yamandla aphezulu ngokuvamile inesilinganiso sesihlabathi esiphansi nesilinganiso esiphansi samanzi. I-coarsegate ehlanganisiwe inamandla aphezulu kanye nenani elikhulu likasimende. Lokhu kudinga ingxenye ephezulu yensimbi nokusetshenziswa kwama-ejenti aphezulu anciphisa amanzi. Ngaphezu kwalokho, ama-ejenti aphezulu akhulisa amanzi nawo ayadingeka. Kungaletha izinzuzo ezithile zezomnotho.
Izinga lokunciphisa lamanzi lokusebenza kahle kwamanzi okunciphisa amanzi ngokuvamile lingama-20% kuya ku-25%. Ama-ejenti asetshenziswa kakhulu asetshenziswa ngamanzi eChina achungechunge lweNye. Ama-ejenti akhulisa amanzi aphezulu anciphise ukulahleka kwe-slump, ngakho-ke ajwayele ukusetshenziswa ndawonye kanye nabathengisi ukwenza ngcono ukusebenziseka kwengxube futhi banciphise ukulahlekelwa uketshezi ngokuhamba kwesikhathi.
I-Pumpering idinga ukhonkolo wezentengiselwano ukuze ube nolwekhisitiki, okungahlukaniswanga, ukungaphumi, kanye nezakhiwo eziphakeme ze-slump ezidingekayo inqubo ngenkathi kuqinisekisa amandla. Ngakho-ke, ukubalwa kwayo okuhlanganisiwe kuphakeme kunalokho kwekhonkolo ezentengiso ezejwayelekile. Yiba lukhuni. Kunezinto eziningi ezitholakalayo:
Fly Ash: Yehlisa ukushisa kwe-hydration futhi kuthuthukise ukubumbana kokhonkolo wezohwebo.
Ukunciphisa amanzi okunciphisa amanzi: njenge-Wood calcium amanzi anciphisa i-ejenti, engagcina usimende, akhulise ubisi, ukubambezela isilinganiso sokukhishwa kwe-hydration, futhi unwebe isikhathi sokuqala.
Umenzeli wokupompa: Uhlobo lomenzeli olwenza uketshezi olungathuthukisa kakhulu uketshezi lwekhonkolo yezohwebo, lunwebe isikhathi sokugcinwa kwengozi, futhi sinciphise ukulahleka kokuncipha ngokuhamba kwesikhathi. Njengoba igama libonisa, kungukuhlanganiswa okuklanywe ngokupompa. Amanzi aphezulu akhulisa amanzi kanye nama-ejenti okufaka umoya nawo angasetshenziswa kukhonkolo wezohwebo onamanzi, kepha awasetshenziswa kakhulu.
Isikhathi sePosi: Feb-26-2024
