L.E.C. (Light Emitting Concrete)

In the year 2001 Light emitting concrete idea was first introduced by Hungarian architect 'Aron Losonzi'. First light emitting concrete block was successfully produced in year 2003 by adding large amount of optical fibre. It is the mixture of optical fibre & concrete. Light emitting concrete also known as self luminous concrete or glow in the dark concrete. This concrete catch energy during the daytime means this concrete absorb the solar energy and convert it into the light. 

Photo via link.springer.com

Materials Used for L.E.C.  :

• Cement
• Fine Aggregate
• Coarse Aggregate
• Optical Fibres
• Water

Elements of Optical Fibre :

Elements of Optical Fibre

• Core - The thin glass center of fibre where light transfer is called core.
• Cladding - The outer material surrounding of core that reflect the light to core.
• Buffer Coating - It is the plastic coating that protects the fibre from water damage as well as moisture.

Uses of L.E.C.  :

• For decorative & aesthetic purpose 
• This concrete is used for constructing illuminate walls
• It is suitable for pavement, floors and also for load bearing walls
• Used for partition wall where the light is not available in that area
• In the area of creative design
• For roadways, bridges, bike path, etc.

Photo via thearchitecturetimes.com

Advantages of L.E.C. : 

• Energy saving material
• Where light is not able to come then that place use L.E.C.
• Lifespan is about 100 years
• Totally eco-friendly because gas realease during manufacturing process is water vapour
• It can expand light for approx. 12 hr. 

Disadvantages of L.E.C. :

• It is so costly because of using optical fibres
• Casting of L.E.C. blocks is difficult
• Special skilled labour is required 

Photo via australiandesignreview.com

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