MINERAL SUBSTANCE PREVENTED FROM UNDERGOING BASIC REACTION AND METHOD OF PREVENTING SAID REACTION

摘要

A mineral substance substantially prevented from undergoing a reaction with a base,obtained by bringing a mineral substance containing silica and/or silicate and being reactive with a basic component into contact with hydrogen peroxide and/or ozone in the presence of water to thereby modify the reaction site(s) of the mineral substance. Said reactive mineral substance is exemplified by an aggregate for hydraulic cement and silicate ceramics. A similar effect can be attained by incorporating hydrogen peroxide and/or ozone in a cement concrete material composed of an aggregate reactive with a base, hydraulic cement and water. The invention is useful for the prolonged stabilization and prevention of contamination of the reactive mineral substance coexistent with a basic component.