A sudden spike in construction activity has caused a shortage of conventional building materials. The high cost of conventional building materials is currently one of the major challenges affecting the delivery of houses globally. Consequently, it is increasingly crucial to do research on different building materials. Increased building strength and lower construction costs are the two issues that efficient housing solutions address. The primary components of ordinary concrete are sand, cement, and gravel. Concrete is the most commonly used building material, and its use is growing as a result of the world's expanding industrialization and urbanization. Scientific endeavors to find alternative and effective materials from huge amounts of natural resources as additives in the partial replacement of cement are being forced by a lack of resources and the progressive degradation of the environment. Cement is one of the main components of concrete. As a way to address and reduce environmental problems, research projects are being looked at that try to incorporate the abundance of agricultural wastes, such as sugar cane bagasse, rice husk, sugar cane straw, and palm oil fuel, into cement and, ultimately, give concrete sustainable and eco-friendly qualities. After being burned to ash or crushed into fine and coarse aggregates, agro-waste materials are combined with cement to form agro-cement. Sustainable construction materials can be used in place of aggregates entirely or in part. The goal of rice husk ash concrete is to create structural concrete that is lightweight, robust, and able to sustain big precast components. It may help reduce the self-load of buildings. Encouraging the use of these "seemingly" waste goods as building components for affordable homes is the primary goal. The primary goal is to promote the use of these "seemingly" waste materials in the construction of reasonably priced dwellings. This article reviews the various key components of rice husk concrete.
