Refractory concretes of a new generation. Rheological aspect of their technology

Abstract

The distinctive features of the rheological behavior of bonding systems and concrete mixtures are generalized and analyzed as applied to the technology of ceramoconcretes, low-cement refractory concretes, and liquid vibrocompacted thixotropic refractory mixtures. The foundations of the principle of rheotechnological correspondence in the technology of refractory concretes are formulated. An important role of vibrations for controlling the rheological properties (vibrorheology) is demonstrated. The principal factors decisive for the rheological properties of binders and concrete mixtures are analyzed. The important role of the temperature factor is considered and the problem of development of a “warm” technology of refractory concretes is posed. The processes of mixing in the technology of refractory concretes are also discussed.