Light transmitting concrete (LiTraCon), also known as translucent concrete, is the brightest building material development in recent years; it is one of the newest, most functional and revolutionary elements in green construction materials.
Originally developed by Hungarian architect, Aron Losonczi, in 2001, light permitting concrete is produced by embedding 4% to 5% optical glass fibers (by volume) into the concrete mixture. Having a small size, the fibers blend into concrete and become a component of the material similar to small pieces of aggregate. Light-transmitting concrete could reach a compressive strength of 50 MPa.
Besides the architectural and interior design appeal, light-transmitting concrete is used in floors, pavements, heat insulation, and load bearing structures. Even though there are limited examples of translucent concrete currently in use, some of the future potential applications under consideration for implementation include:
Greater day lighting means less electrical lighting, less energy use, less cost, less energy-related emissions. Last but not least, “LiTraCon” matches conventional concrete in terms of strength, insulation, and sustainability.
On the other hand, the product’s high cost due to expensive raw material and unavailability for in situ casting represent some of the main drawbacks. The complex manufacturing process of this product eliminates the possibility of using it on site: light transmission is directly related to proper alignment of fibers; any deviation from the application technique would result in ordinary concrete.
There is no doubt that Losonczi’s invention is a breakthrough in the construction world; so far countries such as Sweden, Hungary, Germany, France, USA, and China have tried this technology. The most recent realized projects are in Hungary: partition walls in a private Villa, a cinema new logo plate, and an open air statue.
As this technology grows, more people will see its potential and more new exciting applications will appear in everyday use. “LiTraCon” is yet to be seen in Lebanon.
Download your Full Reports for Light Emitting Concrete