Production of Water Suspension with Carbon Multilayer Nanotubes for Modification of Fine-Grained Cement Concrete
The production method of carbonic nanotubes suspension with adding of surface active agent Polyplast SP-1 with the help of "hydrodynamic device" is studied. Dispergation is the result of cavitation occurring under the interaction between liquid flows. The carbonic nanotubes GraphistrengthTM by the Arkema firm were used as a disperse phase. With the help of "hydrodynamic device" carbonic nanotubes dispersity in water medium increases, and a surface active agent provides the suspension stabilization and prevents the precipitation and sedimentation processes. The addition of this suspension in the dense structure cement concretes allows improving the material mechanical characteristics. The concrete strengthening is connected with the morphology changing of new crystalline hydrate formations providing the formation of low defective cement matrix structure with increased density.