Study on the Influence of Mix Proportion on the Mechanical Properties of Reactive Powder Concrete

Abstract

Reactive Powder Concrete (RPC), as a cement-based composite material with high strength, good ductility, excellent durability, and favorable volumetric stability, exhibits promising applications in modern engineering construction. Investigating the influence of concrete mix proportions on the mechanical properties of RPC is crucial for enhancing its overall performance. This study investigates the influence of individual factors, including watercement ratio, silica fume content, sand-cement ratio, and volume fraction of steel fibers, through single-factor experiments on the mechanical properties of RPC. The results demonstrate that reducing the water-cement ratio, controlling the amount of silica fume and sand-cement ratio, and increasing the volume of steel fibers all contribute to the improved flexural and compressive strength of RPC specimens.