Ukusetshenziswa Kwezinciphisi Zamanzi, Ama-Retarders, nama-Superplasticizers

Izinciphisi zamanzi, ama-retarders, nama-superplasticizers yizixube zamakhemikhali ezisetshenziswa kuzoizingxube zikakhonkoloukuthuthukisa izakhiwo ezithile kanye nokwenza ngcono ukusebenza kukakhonkolo phakathi nezimo zayo ezintsha neziqinile. Ngayinye yalezi zixube isebenzela inhloso ehlukile, futhi ivame ukusetshenziswa kumaphrojekthi wokwakha ukuze kuzuzwe izici ezifiselekayo zikakhonkolo. Ake sihlole ukusetshenziswa kwezinciphisi zamanzi, ama-retarders, nama-superplasticizers ngemininingwane eyengeziwe:

1. Izinciphisi Zamanzi:

Inhloso:

• Ukunciphisa Okuqukethwe Kwamanzi: Izinciphisi zamanzi, ezaziwa nangokuthi ama-ejenti anciphisa amanzi noma amapulasitiki, zisetshenziselwa ukunciphisa inani lamanzi adingekayo ekuxubeni kukakhonkolo ngaphandle kokuphazamisa ukusebenza kwawo.

Izinzuzo Eziyinhloko:

• Ukusebenza Okuthuthukisiwe: Ngokunciphisa okuqukethwe kwamanzi, izinciphisi zamanzi zithuthukisa ukusebenza nokubumbana kwengxube yekhonkrithi.
• Amandla Angeziwe: Ukwehliswa kokuqukethwe kwamanzi kuvame ukuholela emandleni okhonkolo aphezulu kanye nokuqina.
• Ukupheleliswa Okuthuthukisiwe: Ukhonkolo onezinciphisi zamanzi ngokuvamile kulula ukuwuqeda, okuholela endaweni ebushelelezi.

Izicelo:

• High-Strength Concrete: Izinciphisi zamanzi zivame ukusetshenziswa ekukhiqizeni ukhonkolo oqinile lapho izilinganiso eziphansi zikasimende wamanzi zibalulekile.
• Ukumpompa Ukhonkolo: Kwenza kube lula ukumpompa ukhonkolo amabanga amade ngokugcina ukungaguquguquki koketshezi okwengeziwe.

2. Abalindi:

Inhloso:

• Ibambezela Isikhathi Sokusetha: Ama-retarders ayinhlanganisela eklanyelwe ukunciphisa isikhathi sokusetha sikakhonkolo, okuvumela isikhathi esengeziwe sokusebenza.

Izinzuzo Eziyinhloko:

• Ukusebenza Okunwetshiwe: Abalindi bavimbela ukusethwa ngaphambi kwesikhathi kukakhonkolo, banikeze isikhathi esengeziwe sokuxuba, ukuthutha, nokubeka impahla.
• Ukuqhekeka Okuncishisiwe: Izikhathi zokusetha ezihamba kancane zinganciphisa ingozi yokuqhekeka, ikakhulukazi ezimweni zezulu ezishisayo.

Izicelo:

• I-Hot Weather Concreting: Ezimeni lapho izinga lokushisa eliphezulu lingasheshisa ukusetha ukhonkolo, ababuyisela emuva basiza ukuphatha isikhathi sokusetha.
• Amaphrojekthi Amakhulu Wokwakha: Amaphrojekthi amakhulu lapho ukuthuthwa nokubekwa kukakhonkolo kuthatha isikhathi eside.

3. Ama-Superplasticizers:

Inhloso:

• Ukuthuthukisa Ukusebenza: Ama-Superplasticizers, awaziwa nangokuthi anciphisa amanzi asezingeni eliphezulu, asetshenziselwa ukwandisa kakhulu ukusebenza kokhonkolo ngaphandle kokwandisa okuqukethwe kwamanzi.

Izinzuzo Eziyinhloko:

• Ukusebenza Okuphezulu: Ama-Superplasticizers avumela ukukhiqizwa kokhonkolo osebenza kakhulu futhi ogelezayo ngenani eliphansi likasimende wamanzi.
• Amandla Angeziwe: Njengezinciphisi zamanzi, ama-superplasticizers anikela emandleni okhonkolo aphezulu ngokunika amandla izilinganiso eziphansi zikasimende wamanzi.

Izicelo:

• I-Self-Compacting Concrete (SCC): Ama-Superplasticizers avame ukusetshenziswa ekukhiqizeni i-SCC, lapho kudingeka khona ukugeleza okuphezulu kanye nezakhiwo zokuzilinganisa.
• Ukhonkolo Osebenza Kakhulu: Ezinhlelweni ezidinga amandla aphezulu, ukuqina, nokuncipha kokungeneka.

Okucatshangwayo Okujwayelekile:

1. Ukuhambisana: Izixube kufanele zihambisane nezinye izinto ezixutshwe ukhonkolo, okuhlanganisa usimende, ama-aggregates, nezinye izithasiselo.
2. Ukulawulwa Kwemithamo: Ukulawulwa okunembile komthamo we-admixture kubalulekile ukuze kuzuzwe izici ezifiselekayo zikakhonkolo. Ukusebenzisa ngokweqile kungase kubangele imiphumela engemihle.
3. Ukuhlola: Ukuhlola okuvamile kanye nezinyathelo zokulawula ikhwalithi kubalulekile ukuze kuqinisekiswe ukusebenza kahle kwezixube kungxube ethile yekhonkrithi.
4. Izincomo Zomkhiqizi: Ukuthobela izincomo nemihlahlandlela enikezwe umkhiqizi we-admixture kubalulekile ekusebenzeni kahle.

Sengiphetha, ukusetshenziswa kwezinciphisi zamanzi, ama-retarders, nama-superplasticizers ezixubeni zikakhonkolo kunikeza izinzuzo eziningi, kusukela ekusebenzeni okuthuthukisiwe kanye nezikhathi zokusetha ezandisiwe kuya kumandla athuthukisiwe nokuqina. Ukuqonda izidingo ezithile zephrojekthi yokwakha nokukhetha inhlanganisela efanelekile noma inhlanganisela yezixube kubalulekile ekufezeni izakhiwo ezifiselekayo zekhonkrithi. Imithamo ye-Admixture kanye nemiklamo yengxube kakhonkolo kufanele ihlelwe ngokucophelela futhi ihlolwe ukuze kuqinisekiswe ukusebenza kahle nokuqina kwesikhathi eside kukakhonkolo.