Cov tshuaj tiv thaiv pozzolanic yog cov tshuaj tiv thaiv tshuaj uas tshwm sim hauv portland cement thaum ntxiv cov pozzolans. … Cov tshuaj tiv thaiv pozzolanic hloov pauv ib qho silica-nplua nuj precursor uas tsis muaj cementing zog, mus rau calcium silicate, nrog zoo cementing zog.
Pozolanic cov tshuaj tiv thaiv ntawm ya tshauv yog dab tsi?
Nws paub tias cov tshuaj tiv thaiv pozzolanic ntawm ya tshauv cement paste yog cov tshuaj tiv thaiv ntawm cov silica los yog alumina hauv cov tshauv ya ya thiab calcium hydroxide (Ca(OH) 2–CH) tsim los ntawm cov cement hydration nyob rau hauv lub xub ntiag ntawm dej ntawm qhov qub kub [7].
txhais li cas los ntawm pozzolanic?
: finely faib siliceous los yog siliceous thiab aluminous khoom uas reacts chemically nrog slaked txiv qaub ntawm qhov kub thiab txias thiab nyob rau hauv lub xub ntiag ntawm noo noo los tsim ib tug muaj zog slow-hardening cement Lwm Cov Lus los ntawm pozzolana Piv txwv kab lus Kawm ntxiv Txog pozzolana.
piv txwv ntawm reactive pozzolan yog dab tsi?
Cov ntaub ntawv tshwj xeeb xws li av xuab zeb, whiting, bentonite, pulverized roj tshauv (Pfa), silica fume (SF), granulated blast furnace slag (GbfS), pumice, Lub ntiaj teb diatomaceous, limestone, colloidal silica thiab fluorosilicates tuaj yeem siv tau zoo hauv pab pawg no vim tias lawv feem ntau muaj qee qib ntawm pozzolanic …
Dab tsi yog cov khoom ntawm cov tshuaj tiv thaiv pozzolanic?
Pozzolanic cov khoom yuav tsum muaj siliceous los yog ua ke ntawm siliceous thiab aluminous cov ntaub ntawv nyob rau hauv ib tug finely faib daim ntawv uas nyob rau hauv lub xub ntiag ntawm noo noo yuav hnov mob nrog calcium hydroxide, ntawm qhov kub thiab txias, tsim compounds muaj cement Properties.
