BASIC MONOLITHIC REFRACTORY HAVING SPALLING RESISTANCE

摘要

PROBLEM TO BE SOLVED: To improve suppression of slag infiltration and structural spalling and volume stability which were defects of a basic monolithic refractory. SOLUTION: This basic monolithic refractory is obtained by adding 0.05-10 wt.% (as outer percentage) metal alloy or metal oxide consisting mainly of Fe having <=0.5 mm particle diameter and 0.5-5 wt.% (as outer percentage) calcium aluminate or magnesia ultrafine powder having high activity of >=30 g/m<2> specific surface area to basic refractory aggregate containing >=70 wt.% one or more compounds among magnesia clinker, magnesia-chromium linker and dolomite clinker.