Experimental Study on Concrete Incorporating Partial Replacement of Aggregates with Coconut Shell and Cement with Rice Husk Ash

Concrete is one of the most widely used building materials in the world. In addition, concrete is the second most widely used material in the world after water. About ten billion tons of concrete are produced annually. Annual production represents one ton per person in the world. There are negative impacts of increased concrete production such as continued extraction of natural resources from natural sources will lead to depletion and environmental inequality. So many researchers want to replace solid aggregate with concrete to save concrete and increase sustainable development. This environmental factor has caused great concern in the world of infrastructure development. The role of sugarcane, pieces of wood, plastic waste, textile waste, polyethylene, rice ash, rubber tires, vegetable fibers, paper and pulp waste in the industry, vegetable fibers, paper and pulp waste, shellfish. Other conditions for changing aggregates in concrete