A green cube is one which uses less water, optimizes energy efficiency, conserves natural resources, generates less waste and provides healthier spaces for occupants, as compared to conventional materials. The most important benefit of green cube is what it offers to our environment. It positively influences our climate and overall ecosystem by reducing water use and energy sources that pollute our environment, such as coal and carbon dioxide discharged into the atmosphere. So this Structura, the participants will have to cast 3 concrete cubes each of dimensions 150*150*150 mm3 without using Ordinary Portland Cement and will be tested for density, performance and finish. The mass will be measured using a sensitive weighing balance, volume by measuring the sides of the cube manually using Vernier Calipers and density will have determined. Compressive strength will be measured using Compression Testing Machine.