Phunzirani za Mankhwala Othandiza Kwambiri Mankhwala Othandiza Kwambiri: Polycaxttote vs Naphthalene Superplastiter
1. Kodi superplastic ndi chiyani? Chifukwa chiyani amafunikira konkriti?
Superpicticisers kukonza kugwiritsidwa ntchito kwa konkriti ndikuchepetsa kuchuluka kwamadzi, komwe ndikofunikira kuti tikwaniritse madzi ofunikira ndi mphamvu m'majekiti amakono.
2. Naphthalene superplasticise: Chisankho chotsika mtengo
Sukulu ya Naphthalene yakhala ikukomeredwa kwa nthawi yayitali chifukwa cha kuthekera kokwera mtengo kuti achulukitse mphamvu ya masitepe pochepetsa kuchuluka kwa madzi. Ngakhale anali wotsika mtengo, ali ndi nthawi yochepa yosungira, akuchepetsa kugwiritsa ntchito pogwiritsa ntchito njira zina zamakono.
3.
Makina opumira polycattotrate akuimira ukadaulo wapamwamba womwe umasintha kwambiri kukhala ndi mphamvu komanso nyonga. Amachita bwino pazogwiritsa ntchito kwambiri, ndikupereka nthawi yayitali yosungidwa ndi gawo labwino la simenti.
Kuyerekeza magwiridwe antchito: Kuchepetsa madzi ndi kulimba
Poyerekeza magwiridwe antchito a polycaxtrate onjezerani (PCA) ndi Naphthalene Superplasticiters (ma pn), PCA ali ndi zabwino zomveka bwino, ndikupanga chisankho chabwino kwambiri kwa ma konkire ambiri. Chimodzi mwazinthu zabwino kwambiri za PCC ndi kuchuluka kwake kwa madzi ambiri, omwe amatha kufikira 30-35%, pomwe makilogalamu ali 20-25%. Kuchepetsa kwamadzi kwambiri kumachepetsa madzi mu konkriti pomwe akusunga njira zokwanira, zomwe zimapangitsa kunkriti wolimba, wolimba.
Kuphatikiza apo, PCCani ali ndi mwayi wobalira bwino kuwonetsetsa kuti tinthu tating'onoting'ono timagawidwanso konkriti. Izi zimathandizanso madzi komanso kugwira ntchito, zomwe ndizofunikira kuti muchepetse kuwonongeka ndikulimbikitsa kuchiritsa yunifolomu ndi hydration. Makhalidwe awa ndi othandiza makamaka pamapangidwe ovuta kapena owoneka bwino omwe amafunikira kuti madzi ambiri.
PCCenso imafalikira nthawi yoyamba yomanga, makamaka pamapulojekiti akulu omwe amafunikira maola ambiri ogwira ntchito. Uwu ndi mwayi wofunikira pakugwiritsa ntchito mphamvu zapamwamba ndi ultra-mphamvu, monga konkriti konkriti, pomwe pakufunika konkriti yapamwamba kwambiri yomwe ingapirire katundu wambiri yomwe ingapikisane ndi katundu zazikulu ndi mavuto ndikofunikira. Mosiyana ndi zimenezo, Naphthalene Superplarizers, ngakhale owononga mtengo, siabwino monga pce potsatsa madzi kapena kuwonjezera kugwirira ntchito, kotero zipatso zimakonda kuchita zofuna kuchita zoyeserera.
Post Nthawi: Feb-10-2025
