Integrating Self-Healing Materials and Internet of Things for Enhanced Infrastructure Durability and Sustainability

Modern civil infrastructure is increasingly challenged by aging assets, rising maintenance costs, and the need for sustainable, long-term performance. This paper explores the transformative potential of self-healing materials in civil engineering, highlighting how emerging systems such as self-healing concrete, asphalt, and steel can significantly improve infrastructure durability and service life. These advanced materials incorporate mechanisms, including microencapsulated healing agents, shape-memory polymers, and bacteria-based healing components that autonomously initiate repair when cracks or other forms of damage occur. By enabling real-time recovery, self-healing materials reduce the need for manual maintenance, lower lifecycle costs, and minimize operational disruption. In addition, the paper examines the integration of the Internet of Things (IoT) through embedded sensors capable of monitoring key structural conditions such as stress, temperature variations, and crack development. Such monitoring supports predictive maintenance by enabling early detection of deterioration and timely intervention before severe damage occurs. The combined application of IoT-enabled monitoring and self-healing functionality enhances structural safety, improves resource allocation, and reduces the likelihood of unexpected failures. Furthermore, early-stage repair minimizes the need for extensive rehabilitation, decreasing material consumption and associated carbon emissions while promoting more sustainable urban development. Overall, integrating self-healing materials with IoT technologies offers a practical pathway toward smarter, longer-lasting, and environmentally responsible infrastructure that can meet future engineering demands.