Open AccessThe influence of the cenosprehes addition on the heat-resistant lightweight ceramics
Author(s) -
Ina Pundienė,
I. Prantskevichiene,
М. Клигис,
A. Kairite,
Giedrius Girskas
Publication year - 2018
Publication title -
novye ogneupory
Language(s) - English
Resource type - Journals
ISSN - 1683-4518
DOI - 10.17073/1683-4518-2018-9-52-57
Subject(s) - cenosphere , exothermic reaction , materials science , shrinkage , ceramic , fly ash , cement , sintering , combustion , composite material , coal , compressive strength , metallurgy , waste management , chemistry , organic chemistry , engineering
The investigating results are given for the cenosphere (the coal combustion wastes) inuence on the alumina cement hydration and on the exothermic reaction parameters. It was established that the cenosphere content's increasing inhibits the cement hydration, decreases the samples density to 40 % after sintering at1200 °C, as well as it reduces the strength to 60 %, and the shrinkage to 95 % comparing to the reference samples. Judging by the strength to density ratio the optimum quantity of cenospheres in the alumina cement composition is 5‒10 %.Ill.7. Ref. 19. Tab. 2.