Workability of Cement Based Composites

Abstract

Workability Of Cement Based Composites Reactive Powder Concrete (RPC), with compressive strength higher than 200 and up to 800 MPa as well as flexural strength higher than 60 and up to 150 MPa, at the moment potentially represents a new material for structural use in building and engineering in general, even though its application fields have not yet been well defined.

RPC can be also considered as the ultimate step in the development of high per-formance concrete, even though its classification as a concrete material may be not quite proper, based on its microstructure and mechanical behaviour. Also, its production technology, by pressure moulding as well as extrusion, takes it even further from a common concrete.

Conclusion

In this research, cement pastes with different graphene/cement ratio were prepared. Their rheological characteristics of the paste samples were determined from the flow curves of paste using a variety of rheological models, and attained values were analyzed and discussed. After that, hardened properties of the paste were investigated and discussed. Piezo-resistive characteristics of the graphene cement composite were also explored and its practical application was investigated in the laboratory