I-Ready-mix mortar iyimpahla yokwakha eyenzelwe ukusetshenziswa kumaphrojekthi wokwakha. Yenziwa ngokuxuba usimende, isihlabathi namanzi ngezilinganiso ezihlukahlukene, kuye ngamandla afunekayo kanye nokuvumelana komkhiqizo ophelile. Ngaphezu kwalezi zithako eziyisisekelo, udaka oluxubene ngomumo luqukethe nohlu lwezithako zamakhemikhali eziklanyelwe ukuthuthukisa ukusebenza nokuqina kwalo.
Izithasiselo zamakhemikhali yizinto ezengezwe entweni ukuthuthukisa noma ukushintsha izici zayo. Okwezinsimbi ezixutshwe ngomumo, lezi zengezo zivame ukukhethwa ngenxa yekhono lazo lokuthuthukisa ukusebenza, ukunciphisa isikhathi sokusetha, ukwandisa ukugcinwa kwamanzi, nokuthuthukisa amandla nokuqina komkhiqizo oqediwe.
Kulesi sihloko sizobheka ezinye zezithasiselo zamakhemikhali ezibalulekile ezivame ukusetshenziswa ekukhiqizeni udaka olulungile.
1.Retarder
Ama-retarders ikilasi lezithasiselo zamakhemikhali ezisetshenziselwa ukwehlisa isikhathi sokusetha sezinto ezisekelwe kusimende. Basebenza ngokubambezela ukusabela kwamakhemikhali okwenzeka lapho usimende uhlangana namanzi, okunikeza izisebenzi isikhathi esengeziwe sokuqeda umsebenzi ngaphambi kokuba udaka luqale.
Ama-retarders awusizo ikakhulukazi ezimweni zezulu ezishisayo noma lapho esebenza ngodaka oluningi, okungenzeka ukuthi lusethwe ngokushesha kakhulu. Ngokuvamile zifakwa engxubeni yodaka ngesilinganiso sika-0.1% kuya ku-0.5% wokuqukethwe kukasimende.
2. Ipulasitiki
Ama-Plasticizers angolunye uhlobo lwezithako zamakhemikhali ezivame ukusetshenziswa odakeni oluxutshwe ngomumo. Inhloso yabo ukunciphisa i-viscosity yodaka, okwenza kube lula ukuphatha nokusebenzisa.
Ama-Plasticizers ngokuvamile anezelwa engxubeni yodaka ngenani lika-0.1% kuya ku-0.5% wokuqukethwe kukasimende. Bathuthukisa izici zokugeleza kodaka, okwenza kube lula ukusabalalisa nokufeza ukuphela kwendawo efanayo.
3. I-ejenti yokugcina amanzi
I-ejenti egcina amanzi iwuhlobo lwezithako zamakhemikhali ezithuthukisa ukusebenza kodaka lokugcinwa kwamanzi. Inhloso yabo ukunciphisa inani lamanzi alahleka ngokuhwamuka ngesikhathi senqubo yokwelapha, okusiza ukuvimbela ukushwabana nokuqhekeka.
Ama-ejenti okugcina amanzi ajwayele ukungezwa engxubeni yodaka ngenani lika-0.1% kuya ku-0.2% wokuqukethwe usimende. Benza ngcono ukusebenza kodaka, okwenza kube lula ukusebenzisa nokufeza indawo ebushelelezi, elinganayo.
4. I-ejenti yokungenisa umoya
Ama-air-entraining agents asetshenziselwa ukwethula amabhamuza amancane engxube yodaka. Lawa mabhamuza asebenza njengama-absorber amancane, akhulisa ukuqina nokumelana nokuncibilika komkhiqizo oqediwe.
Ama-ejenti afaka umoya-mpilo ngokuvamile ayengezwa engxubeni yodaka ngenani lika-0.01% kuya ku-0.5% wokuqukethwe usimende. Zingathuthukisa ukusebenza kodaka futhi zenze kube lula ukuzisebenzisa, ikakhulukazi uma zisebenza ngama-aggregate anzima.
5. I-Accelerator
Ama-accelerator ayizithasiselo zamakhemikhali ezisetshenziselwa ukusheshisa isikhathi sokusetha sikadaka. Ngokuvamile zisetshenziswa ezimweni zezulu ezibandayo noma lapho udaka ludinga ukuqedwa ngokushesha.
Ama-accelerator ajwayele ukungezwa engxubeni yodaka ngenani lika-0.1% kuya ku-0.5% wokuqukethwe kukasimende. Bangasiza ukunciphisa isikhathi esisithathayo ukuze udaka lwelaphe futhi lufinyelele amandla aphelele, okubalulekile kumaphrojekthi wokwakha azwela isikhathi.
6. I-ejenti yokunciphisa amanzi esebenza kahle kakhulu
I-Superplasticizer iyi-plasticizer esetshenziselwa ukuthuthukisa ukusebenza kodaka. Basebenza ngokusabalalisa izinhlayiya zikasimende ngokulinganayo kulo lonke ingxube yodaka, ngaleyo ndlela bathuthukise izici zayo zokugeleza.
Ama-Superplasticizers ngokuvamile anezelwa engxubeni yodaka ngenani lika-0.1% kuya ku-0.5% wokuqukethwe usimende. Benza ngcono ukusebenza kodaka, okwenza kube lula ukusebenzisa nokufeza indawo ebushelelezi, elinganayo.
I-Ready-mix mortar iyimpahla yokwakha ethandwayo esetshenziswa kabanzi kumaphrojekthi wokwakha ahlukahlukene. Iqukethe ingxube kasimende, isihlabathi namanzi, kanye nohlu lwezithako zamakhemikhali ezisetshenziselwa ukuthuthukisa ukusebenza nokuqina kwayo.
Ezinye izithasiselo zamakhemikhali ezibalulekile ezisetshenziswa odakeni oseluvele beluxubile zifaka izinto ezibuyisela emuva, amapulasitiki, ama-ejenti agcina amanzi, ama-ejenti afaka umoya, ama-accelerator nama-superplasticizers. Lezi zengezo zikhethwe ngokucophelela ukuze kuthuthukiswe ukucutshungulwa, ukunciphisa isikhathi sokusetha, ukwandisa ukugcinwa kwamanzi futhi kuthuthukise amandla nokuqina komkhiqizo ophelile.
Ngokuqonda indima yesithasiselo samakhemikhali ngasinye, ochwepheshe bezokwakha bangakhetha uhlobo olulungile lwengxube elungele iphrojekthi yabo ethile futhi baqinisekise ukuthi ihlangabezana nezidingo zayo zokusebenza nokuhlala isikhathi eside.
Isikhathi sokuthumela: Sep-26-2023