Statistical approach to carbon based materials reinforced cementitious composites: Mechanical, thermal, electrical and sulfuric acid resistance properties

Abstract

In recent years, carbon based materials are quite attractive for the building materials industry in terms of high thermal stability, superior mechanical and electrical properties. This study focuses on the thermal, electrical, mechanical and durability properties of carbon based materials reinforced cementitious composites with the help of statistical experimental design methods. Graphene oxide reinforced cementitious composite having lower 28-days thermal conductivity of 14.37% has been obtained with a 28-day compressive strength gain of 73.13%. It has been possible to achieve 222% higher electrical resistance with 5% graphene oxide and 63.33% lower electrical resistance with 1.5% reduced graphene oxide by mass. After the usage of 2.5% by weight graphene oxide, agglomerated and stacked graphene oxide increases sulfuric acid resistance while causing compressive strength loss. It was also concluded that carbon fiber has been identified as the most successful carbon based material in terms of durability property among the materials in this study.