method for separating or deagglomerieren of teilchencluster and method for concrete or moertel manufacture

摘要

Particle clumps in powdery or granular materials are broken up by ultrasonic treatment. Independent claims are also included for the following: (i) preparation of a concrete or mortar by subjecting a siliceous or silicon-based mineral material component to the above process before incorporation in the concrete or mortar mixture; and (ii) a concrete or mortar containing a siliceous or silicon-based material which has a free submicron particle content of greater than 55 (preferably greater than 65) wt.%.