Translucent concrete is a light-transmitting concrete made with fine concrete and optical fibers. It is manufactured by alternately layering concrete and fiber fabrics in a mold. Light is transmitted through the fibers embedded in the concrete. Translucent concrete can be used for building materials, subway stations, and ceilings to reduce lighting costs. However, it is more expensive than regular concrete due to the optical fibers. Self-healing cement is being developed that contains microcapsules of epoxy resin to automatically repair cracks. It also regulates heat using phase-change materials. This cement has advantages of reducing maintenance costs and increasing structure lifespan but ingredients make it more expensive. Carbon fiber is strong yet light material made of carbon strands thinner than