Open AccessRefractory materials on base of the secondary resources and phosphate compounds
Author(s) -
К. Б. Подболотов,
А. Т. Волочко,
N. A. Khort,
С. В. Гусаров
Publication year - 2018
Publication title -
novye ogneupory
Language(s) - English
Resource type - Journals
ISSN - 1683-4518
DOI - 10.17073/1683-4518-2018-12-9-13
Subject(s) - mullite , grog , materials science , phosphoric acid , porosity , refractory (planetary science) , brick , metallurgy , thermal stability , composite material , chemical engineering , ceramic , engineering
The investigating results are given for the refractory materials developed on base of both the secondary resources (chamotte refractory rubble, mullite-containing wastes and alumina molt slag), and the fireclay together with the phosphoric acid. The dependence was defined for the developed materials' physical, chemical and strength properties on the admixtures ratio, aggregate's fraction composition and on the burning temperature. It was determined that the alumina molt slag's and the mullite wastes' admixtures desired contents are 5% and 15% respectively. The material produced at the burning temperature up to 1200 °C out of the developed mixture has the density of 1785‒1795 kg/m 3 , the open porosity of 20‒23%, the ultimate compression strength of 40‒50 MPa, and the thermal stability of 30‒50 thermal cycling (1000°C ‒ water).