Improved durability of concrete using supplementary cementitious materials

In the twenty-first century, concrete infrastructures are facing a challenge of how to improve serviceability and sustainability using eco-friendly additives.In fact, to meet such a demand, the concrete structure completely depends on the durability of concrete.However, the conventional normal mix design does not fulfil such demand.Consequently, the concrete structures show deformation or any distress like cracking, etc. during its early service life.Toward this direction, the high-performance concrete (HPC) is looking a good solution.However, due to limited knowledge of structural designer to use of supplementary cementitious materials (SCM) and its influence on the concrete structure, the service life improvement of concrete structures is not always satisfactorily fulfilled.Therefore, in this study, largely extended types of cement and SCMs have been used to prepare HPC mixes.Total nine independent HPC mixes of the M40 to M70 grade were prepared using different SCMs, namely fly ash (FA), silica fume (SF), and ground granulated blast-furnace slag (GGBS) with ordinary Portland cement (OPC) and were investigated their durability by an experimental test setup of permeability.It has observed that the use of SCM with partial replacement of the OPC in concrete is helpful to increase the durability of concrete.