The Influence of Cementitious Materials on the Performance of Porous Concrete: A Review

Abstract

Porous concrete is an eco-friendly building material that harmonizes with nature, and it has been extensively studied due to its excellent permeability, breathability, sound absorption, and dirt cleaning properties. Based on a comprehensive review of the literature, this study summarizes the current research status on the effects of various cementitious materials on the mechanical, permeability, and durability properties of porous concrete (PC). The results indicate that a rational combination of cementitious materials and supplementary cementitious materials (such as cement, silica fume, fly ash, metakaolin, etc.) helps to balance and optimize the mechanical, permeability, and durability properties of porous concrete. For example, silica fume at 8% replacement improved the compressive strength to 25.6 MPa, while fly ash at 40% replacement achieved a compressive strength of 32.1 MPa. The study also explores various factors affecting the performance of porous concrete, laying a theoretical foundation for its practical application in engineering projects.