Funda mayelana nama-ejenti athuthukile kakhulu anciphisa ama-ejenti: Polycarboxylate vs naphthalene superplastimizer
1. Yini i-superplastizer? Kungani zidingeka kukhonkolo?
Ama-Superplastizers athuthukisa ukusebenziseka kokhonkolo futhi anciphise isilinganiso samanzi, okubalulekile ukuze afeze ukufezekisa ubisi oludingekayo namandla kumaphrojekthi wanamuhla wokwakha.
2. I-Naphthalene Superplastizer: Ukukhetha Okungabizi Kwendabuko
Kudala ama-superplastifizers kaNaphthalene sekuyisikhathi eside athandwa ngenxa yekhono labo elisebenzayo lokukhulisa amandla ekhonkolo ngokunciphisa isilinganiso samanzi. Ngaphandle kokungabizi, banesikhathi sokugcina esifushane, banciphisa ukusetshenziswa kwabo kwezinye izinhlelo zanamuhla.
3. I-Polycarboxylate Superplastimizer: Ubuchwepheshe obuthuthukisiwe bokuhlangabezana nezidingo zesimanje
Ama-polycarboxylate ama-superplastizers amele ubuchwepheshe obuthuthukile obuthuthukisa kakhulu ukucubungulwa namandla. Benza kahle ezinhlelweni zokusebenza okuphezulu, zihlinzeka ngezikhathi zokugcina ezinde zokugcina kanye nokuhlakazeka okuhle kwe-cement pateripy.
Ukuqhathanisa Ukusebenza: Ukuncishiswa kwamanzi nokuqina
Uma uqhathanisa ukusebenza kwama-polycarboxylate superplastimizer (PCE) kanye nama-superplastifizer we-naphthalene (PCS), i-PCE inezinzuzo ezicacile, okwenza kube yisinqumo esihle kakhulu sezicelo eziningi zokhonkolo. Enye yezinzuzo eziphawuleka kakhulu ze-PCCE izinga layo lokunciphisa amanzi aphezulu, elingafinyelela kuma-30- 35%, kanti ama-PNS angama-20-25% kuphela. Le umthamo aphezulu amanzi aphezulu inciphisa okuqukethwe kwamanzi ngokhonkolo ngenkathi kugcinwa umsebenzi owuthandayo, okuholela kukhonkolo onamandla, oqinile.
Ngaphezu kwalokho, i-PCE inamakhono amahle kakhulu wokuhlakazwa ukuqinisekisa ukuthi izinhlayiya ze-Conment zisatshalaliswa ngokulinganayo kuyo yonke ingxube kakhonkolo. Lokhu kuthuthukisa uxhaso nokusebenza, okubalulekile ukuvikela ukuqhekeka ngokukhuthaza ukwelashwa kwe-Uniform kanye ne-hydration. Lezi zici ziwusizo ikakhulukazi emiklamo eyinkimbinkimbi noma eyinkimbinkimbi ezidinga ukufutheka okuphezulu.
I-PCE ibuye yandise nesikhathi sokuqala esibekiwe, inikeze ukuguquguquka okukhulu kokwakha, ikakhulukazi kumaphrojekthi amakhulu adinga amahora okusebenza anwetshiwe. Le yinzuzo ebalulekile emandleni anamandla aphezulu kanye nezicelo ezinamandla aphezulu, ezinjengokhonkolo we-C50, lapho kunesidingo sokhonkolo osebenza kahle olungamelana nemithwalo emikhulu nokucindezelwa kubalulekile. Ngokuphambene nalokho, ama-superplastifizer we-naphthalene, yize abiza kakhulu, awalungile njenge-PCE ekunciphiseni kwamanzi noma ukunwebisa ukuwela, ngakho-ke i-PCE ikhethwa ngamaphrojekthi anezidingo zokusebenza eziqinile.
Isikhathi sePosi: Feb-10-2025
