Colloidal and Chemical Processes in Hardening Alkaline Compositions Based on Aluminosilicates and Slags: 2. Rheological Studies

The effect of slags of various basicity constituting alkaline binder compositions on their chemical (hydration) interactions with water at the earlier hardening stages, as well as the oscillation failure of forming structure under weak mechanical loading, are studied by the rheological methods. It is shown that the higher the slag basicity, the stronger the hydration interactions in alkaline binder compositions causing their hardening, all other things being equal. It is established that low-basicity slags in mixtures with natural or technogenic alkaline aluminosulicates form highly efficient low-plasticity compositions suitable for the underwater colmatage of the basements of hydraulic structures or the burial of hazardous wastes.