Sustainable Construction Using Steel FRP Composites Snehal Abhyankar Abstract Sustainable construction using composites is used all over the world in respect of its strength, durability, high mouldability, stability and relative low cost. Repair, rehabilitation and retrofitting projects involve use of fibres in concrete. A combination of steel and polypropylene fibres is termed as steel–polypropylene fibre-reinforced concrete (SPFRC). The composites consist of steel fibre that pro- vides the structural improvement, whereas polypropylene fibre enhances the resistance to plastic shrinkage cracking. To enhance strengths, fibres are added in concrete. Sustainable solutions demand different ways to minimize the failure of the concrete structures. Keywords Sustainable Á Composites Á SPFRC Á Cracks Á Flexural strength Á Compressive strength 1 Introduction The concrete roads are applied to axle load repetitions during its design period losing its serviceability due to rapid deterioration in the form of micro- and macro-cracks. Shrinkage in the concrete may also result in the formation of cracks. Concrete without any fibres may develop cracks due to plastic shrinkage, drying shrinkage and other reasons of changes in volume of concrete, and development of these micro-cracks causes elastic deformation of concrete. Deterioration of concrete structures due to steel corrosion is a matter of considerable concern since the repairing of these structures proved to be a costly process. The addition of fibres in the plain concrete will control the cracking due shrinkage, reduce the bleeding of water, meet the required values of flexural strength and enhance the strain capacity of the plain concrete [1]. In FRC (fibre-reinforced concrete) thousands of small fibres are dispersed and distributed randomly in the concrete during mixing and thus improve concrete properties in all directions (Krishna and Rao 2014). Chang S. Abhyankar (&) Department of Civil Engineering, VNIT, Nagpur, India © The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2022 B. Laishram and A. Tawalare (eds.), Recent Advancements in Civil Engineering, Lecture Notes in Civil Engineering 172, https://doi.org/10.1007/978-981-16-4396-5_18 197