Review on Performance Evaluation of Autonomous Healing of Geopolymer Composites

It is a universal fact that concrete one of the most employed construction materials and hence its exigency booming at rocket pace, which in turn, has resulted titanic demand ordinary Portland cement. Regrettably, production this essential binder not merely found to consume restricted natural resources but also be associated with emission carbon dioxide—a primary greenhouse gas (GHG) directly answerable earth heating, resulting gigantic dilemma global warming. Nowadays, order address all these impasses, researchers are attracted innovative Geopolymer technology. However, crack development various sizes within inevitable irrespective kind, mix design, etc., owing external internal factors viz., over-loading, exposure severe environments, shrinkage, or error need sealed otherwise openings permits CO2, water, fluids, chemicals, harmful gases, pass through reducing service life ultimately causing failure structures long term. That why instant repairs cracks essential, manual mends time-consuming costly too. Hence, self-healing desirable ease their maintenances repairs. Self-healing geopolymer (SHGPC) revolutionary product extending solution predicaments. The present manuscript investigates ability paste, mortar, concrete—a slag-based fiber-reinforced variety other composites endow multifunction have been compared, keeping constant ratio water binder. Additionally, feasibility bacteria metakaolin-based for employing Bacteria-Sporosarcina pasteurii, producing Microbial Carbonate Precipitations (MCP), was taken into account leakage healing process precipitation medium. Several mechanisms, assistances, applications, challenges every strategy accentuated, compared impacts as practicable autogenously-healing mechanisms while active concretes subjected deterioration, corrosion, cracking, degradation reviewed systematically.