State of the art on factors affecting the performance of MICP treated fine aggregates

Microbially-induced calcium carbonate precipitation (MICP) is a promising technique for enhancing the mechanical and durability properties of fine aggregates used in the construction industry. However, several factors affect the success of MICP treatment, including chemical and physical factors, which can impact the treatment's effectiveness. This review paper comprehensively analyzes such factors influencing the effectiveness of MICP treatment. The mechanisms of the MICP process, including enzymatic and non-enzymatic pathways, are discussed in detail. The paper also highlights the challenges and limitations of the technique and identifies research gaps and future directions. This review provides valuable insights into the potential benefits and challenges of using the MICP technique for improving the performance of fine aggregates in concrete and will be of interest to researchers, engineers, and other professionals working in the construction industry.