Wow! This seems great! Concrete that transmits light! Thus, allowing sunlight in seeping through the building wall while giving the same protection of a concrete wall! LiTraCon™ offers the phenomena of light transmitting concrete in form of a widely applicable new building material.
LiTraCon™ is a combination of optical fibers and fine concrete and can be produced as prefabricated building blocks and panels. The fibers blend into concrete, because of their small size becoming a component of the material like small pieces of aggregate. And because of their parallel position the light-information on the brighter side of such a wall appears unchanged on the darker side. Hence can help you cut down on your electricity bills by providing natural lights during the day.
Via: litracon.hu