ALUMINA CEMENT AND ALUMINA CEMENT COMPOSITION

摘要

PURPOSE:To provide an alumina cement and alumina cement composition exhibiting remarkably excellent workability, strength-developability, heat- resistance and early strength performance even in an application environment of >=30 deg.C. CONSTITUTION:The objective alumina cement has a shape factor of <=30 and contains alumina and clinker having a mineral composition composed mainly of CaO.Al2O3 and a chemical composition consisting of >=70wt.% of Al2O3 and <=30wt.% of CaO. The alumina cement is compounded with refractory aggregate to obtain an alumina cement composition.