Light transmitting concrete, also known as translucent concrete, is a concrete-based building material that transmits light through the uniform distribution of optical fibers throughout its body. It works on the principle of total internal reflection within the fibers to transmit light over long distances with minimal loss. Potential applications of light transmitting concrete include use in floors, ceilings, walls, and pavements to illuminate buildings while retaining compressive strength comparable to ordinary concrete.

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PRESENTED BY:
SAHLA FATHIMA
REGISTER NO:11132837
GUIDED BY:
SREELEKSHMI UM
ASSISTANT PROFESSOR

2.  Light transmitting concrete(litracon) also known as translucent
concrete, is a concrete based building material having light-
transmissive property.
 Light-transmissive property is mainly due to uniform
distribution Optical Fibers throughout its body.It is also known
to be transparent concrete.
 It is available as prefabricated building blocks and panels.
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3.  In 2001 the idea of transparent concrete was
put forward by Hungarian architect
Aron Losonzi.
 Successfully produced the first transparent
concrete block in 2003,named LiTraCon.
 In 2004, he started a German company
named LiTraCon and started producing
Litracon commercially.
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Transparent
concrete block

4.  Translucent concrete works based on “Nano-Optics”.
 Fibers are placed directly on top of each other.
 Fibers acts like slits and carry light through it.
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Alignment of fibres in a
transparent concrete cube

5.  Flexible, transparent fiber made up of glass or plastic.
 It transmits light between two ends of the fiber.
 Optical fiber transmits light so effectively that there is almost
no loss of light conducted through the fibers.
5Optical fibres

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7. Total Internal Reflection
 When a ray of light travels from a denser to a rarer medium
such that the angle of incidence is greater than the critical
angle, the ray reflects back into the same medium this
phenomena is called total internal reflection.
 In the optical fiber the rays undergo repeated total number of
reflections until it emerges out of the other end of the fiber,
even if the fiber is bent.
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9.  Cement: Ordinary Portland cement is used
for transparent concrete.
 Sand: The size of sand should pass through
1.18mm sieve.
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10.  Water: Water to be used for transparent
concrete should be of drinking water
quality.
 Optical fibers: Thickness of the optical
fibers can be varied between 2 µm and
2 mm.
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11.  The manufacturing process of transparent concrete is almost
same as regular concrete.
 Small layers of the concrete are poured into a mould and
fibres are infused in it.
 Newer, semi-automatic production processes use woven fibre
fabric instead of single filaments.
 Fabric and concrete are alternately inserted into moulds at
intervals of approximately 2 mm to 5mm.
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12. Another method-
 Many holes are punched on side walls of the mould.
 Optical fibres have to be run through these holes from one end
to the other.
 Concrete is poured into it.
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13.  Compressive strength-25-220 N/mm2
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Figure shows the comparison of compressive
strength of OPC and LTC

14.  Flexural strength-7.7 N/mm2
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Figure shows the comparison of flexural
strength of OPC and LTC

15. MATERIAL PERFORMANCE:
 Concrete retains its strength
 Frost and de-icing salt resistant.
 Fire protection.
 Highest UV resistance.
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Pavement illuminated by
transparent concrete

16.  Energy saving can be done by utilization of transparent
concrete in building.
 It has very good architectural properties for giving good
aesthetical view to the building.
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Sunlight passing through the
transparent concrete wall

17. Transparent concrete blocks is
suitable for :
 Floors
 Ceiling
 Pavements
 Load-bearing walls
 Partitions wall
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Sillhouttes of trees
Panels illuminate in different
colours

18.  In furniture for the decorative and aesthetic
purpose.
 Light sidewalks at night.
 Increasing visibility in dark subway stations.
 Lighting indoor fire escapes, in the event of a
power failure.
 Illuminating speed bumps on roadways at night
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Stairs

19. 1)THE EUROPE GATE
 It is located in Fortress Monostor in the
Hungarian town, Komarom
 The sun illuminates the 37.6ft large
Litracon piece of the statue in the mornings
and late afternoons
 In night an even more impressive view can
be seen because of the embedded light
sources.
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Day view
Night view

20. 2) CELLA SEPTICHORA , PECS, HUNGARY
It has a door made of Litracon Panels set in a steel frame.
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Day viewNight view

21. 3) NEW HEADQUARTERS OF BANK OF GEORGIA:
 Walls, walks, receptions, offices and consultation desks are
illuminated by transparent concrete
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22. 1)Very high cost about $1000/m2.
2) Labours with technical skills are needed to use it
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23. ◦ Light transmitting concrete is an emerging trend in concrete
technology.
◦ Its initial cost is high. But, routine maintenance is not required
and in long run it may be advantageous. In fact it worth the
cost.
◦ It’s a green building material reducing the lightning cost
during day time. It’s proved to provide both aesthetic
appearance and structural stability.
◦ In future the it’s cost is expected to decrease.
◦ It is one of the best applications of optical glass fibers which
is related to technical textiles.
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24.  A. B. Sawant, R. V. Jugdar, S. G. Sawant, Light Transmitting
Concrete by using Optical Fiber:International Journal of Inventive
Engineering and Sciences (IJIES)ISSN: 2319–9598, Volume-3
Issue-1, December 2014
 Basma F. Bashbash, Roaa M. Hajrus, Doaa F. Wafi, Mamoun A.
Alqedra:Basics of Light Transmitting Concrete:Global Advanced
Research Journal of Engineering, Technology and Innovation
(ISSN: 2315-5124) Vol. 2(3) pp. 076-083, March, 2013
 Bhavin K. Kashiyani, Varsha Raina, Jayeshkumar Pitroda, Dr.
Bhavnaben K. Shah. A Study on Transparent Concrete: A Novel
Architectural Material to Explore Construction Sector:International
Journal of Engineering and Innovative Technology (IJEIT),Volume
2, Issue 8, February 2013
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25.  M.N.V.Padma Bhushan, D.Johnson, Md. Afzal Basheer Pasha
And Ms. K. Prasanthi. Optical Fibres in the Modeling of
Translucent Concrete Blocks:International Journal of
Engineering Research and Applications (IJERA), Vol. 3, Issue
3, May-Jun 2013, pp.013-017
 Patil Gaurao S., Patil Swapnal V. Light Transmitting Concrete-
A New Innovation:International Journal of Engineering
Research and General Science,Volume 3, Issue 2, Part 2,
March-April, 2015,ISSN 2091-2730
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26.  P.M.Shanmugavadivu, V. Scinduja, T.Sarathivelan, C.V
Shudesamithronn, An Experimental Study On Light
Transmitting Concrete:IJRET: International Journal of
Research in Engineering and Technology
 Soumyajit Paul, Avik Dutta.Tranclucent concrete:International
Journal of Scientific and Research Publications, Volume 3,
Issue 10, October 2013
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