Usuku lwePosi:4,Deco,2023

Yini izici zeI-PCE-based admixtures?

Izakhiwo eziphakeme kakhulu zokunciphisa amanzi:Kususelwa ku-PCE amamuzwa Siza ukunciphisa amanzi ngokuvumela ukhonkolo ukuze kugcinwe ukusebenza kwayo ngenkathi kunciphisa ukusetshenziswa kwamanzi. Lokhu kwenziwa ngokusebenzisa ukwakhiwa okuphezulu kwesimende nakwezinye ama-admixtures ukudala ukuhlanganiswa okude.

PCE Superplastizers zisetshenziswa kakhulu kuzinhlelo zokusebenza zikakhonkolo ezilungele lapho kusebenza khona nokuqina okuphezulu.

Ukumelana okuphezulu: Izakhiwo eziphikisayo ze-admixture zinika amandla ukhonkolo ukumelana nokuhlaselwa kwe-sulfate, ukulimala kwe-freeze-ye-shuaw kanye nokuphendula kwe-alkali-silica.

Ukulungiswa kwe-Slump: Njengokuhlanganiswa okusebenzayo kwamanzi okusebenzayo,Ukuhlanganiswa kwe-PCE kungasiza ukunciphisa okuqukethwe kwamanzi okudingekayo ukufeza ukuncishiswa okunikezwe ngokwenza ngcono ukusebenziseka kwengxube kakhonkolo. Lokhu kuvame ukutholakala ngokunciphisa isilinganiso samanzi nokukhulisa ukusatshalaliswa kosayizi wezinhlayiyana. Ngakho-ke, lokhu kusiza ukuvimbela ikhasi le-SECTAGE eleqile lezinqubo ngesikhathi senqubo yokuxuba, okungaholela ekulahlekelweni kwe-slump.

Izinzuzo zeUkuhlanganiswa okususelwa ku-PCE:

Ukusebenza okwenziwe ngcono:Kususelwa ku-PCE amamuzwa Nikeza ukuxubeka okusebenzayo ngokwengeziwe ngamandla aphezulu kanye nokusebenza okusheshayo ngaphandle kokuyekethisa izindawo. Iphinde ithuthukise ukusebenziseka kokhonkolo okusha, okwenza kube lula ukupompa nendawo.

 Yehlisa i-permeability: Ama-admixtures anganciphisa ukuvumela kukakhonkolo, ngaleyo ndlela anciphise ubungozi bomswakama ungene kukhonkolo.

 Ukuhlanganiswa okuphezulu kwekhwalithi ephezulu Lokhu kuthuthukisa amandla nekhwalithi kakhonkolo.

 Yehlisa i-shrinkage: ama-admixtures ekhonkolo anganciphisa i-shrinkage kakhonkolo, esiza ukunciphisa ingozi yokuqhekeka nomunye umonakalo. Lezi zinhlamvu zinikeza inhlanganisela ekhonkolo ngohlelo lwangaphakathi lwelapha. Ukuba khona kwama-polycarboxylate asher kuvumela ukuhlanganiswa kudonswe futhi kugcinwe amanzi engxenyeni ukhonkolo.

 Ukuqeda okuthuthukile:Kususelwa ku-PCE amamuzwa Ingathuthukisa ukuqedwa kokhonkolo, okwenza kube bushelelezi, kumnandi kakhulu futhi kube nomphumela ongaguquki. Ukuqedwa okuthuthukile kusiza ukukhulisa ukuqina kwendawo ekhonkolo. Le ngxube ibuye inikeze umklamo wokuxubana ofanayo futhi wehlise ukuthambekela kokuqhekeka kwe-shrinkage. Ngokwengeziwe, kungasiza ukunciphisa ukumuncwa kwamanzi nokumisa ikhasi le-peant beape.