HIGH-PERFORMANCE SILICA FUME (MICROSILICA)--MODIFIED CEMENTITIOUS REPAIR MATERIALS

Basic information about silica fume (microsilica), portland cement-based materials containing silica fume, and the use of these materials in the repair of structures is reviewed in this paper. Information is presented about high-performance (strength in excess of 20,000 psi) repair materials containing silica fume. Various applications are discussed, including those involving grout, underwater concrete, shotcrete, and concrete repairs.