Influence of Graphene Oxide as Advanced Nanomaterial on Fly Ash and Silica Fume-Based High-Strength Self-compacting Concrete

Abstract

Usage of nanomaterials is the current trend in all the industries including construction materials. Nanomaterials are known for its low particle size (<100 nm) and high surface area. Materials can be modified at nanoscale that is, we can improve the microstructure of cement. Graphene oxide (GO) is one such nanomaterials known for its complex carbon structure and strength properties. GO is used to improve the properties of high-strength self-compacting concrete (HSSCC). As the world is growing vertically, it is necessary to study on modern materials and its strength characteristics. This research evaluates performance characteristics of GO-incorporated high-strength self-compacting concrete. Graphene oxide is fabricated in the laboratory which is economical and efficient. Silica fume (10 wt% of cement) is replaced for better dispersion of GO in the concrete and Fly ash (30 wt% of cement) is replaced is incorporated to enhance the pore structure and rheological properties of HSSCC. GO is added to cement at contents 0, 0.02, 0.04, 0.06, 0.08 and 0.1% by weight of powder to achieve high-strength self-compacting concrete. Performance characteristics HSSCC are determined at 7, 28, 56 and 90 days of curing.