Concrete is considered an eco-friendly material for several reasons. First, it has a long lifespan, reducing the need for frequent replacements and the associated environmental impact of materials and transportation. Concrete is also recyclable; old concrete can be crushed and reused in new construction projects. Additionally, concrete's light colour helps reduce the urban heat island effect by reflecting sunlight rather than absorbing heat, making it an environmentally friendly choice for driveways. Some modern concrete mixes even incorporate recycled materials, reducing the environmental footprint.