TRANSPARENT CONCRETE is a concrete based building material with light-transmissive properties due to embedded light optical elements — usually optical fibers. Light is conducted through the stone from one end to the other. Therefore the fibers have to go through the whole object. This results into a certain light pattern on the other surface, depending on the fiber structure. Shadows cast onto one side appear as silhouettes through the material.

1. SEMINAR
ON
TRANSPARENT
CONCRETE
BY,
JOHNS ABRAHAM
7TH
SEMCA
MACE,KOTHAMANGALAM

2. CONTENTS
 INTRODUCTION
 MATERIAL USED
 PRINCIPLE
 MANUFACTURING PROCESS
 EXPERIMENTS OF TRANSPARENT
CONCRETE
 APPLICATIONS
 ADVANTAGES AND DISADVANTAGES
 CONCLUSION
 REFERENCES

3. INTRODUCTION
 Transparent concrete - Light-Transmissive
property.
 Light-Transmissive property- uniform distribution
Plastic Optical Fibres (POF) .
 Also known as Translucent concrete, LiTraCon.

4. MATERIAL USED FOR TRANSPARENT
CONCRETE
 The two basic materials are:-
1. Fine concrete
2. Optical fibres
 Fine concrete : cement & fine aggregate (sand)
 Optical fibres: There are 3 kinds
I. Multimode graded-index fibre
II. Multimode step-index fibre
III. Single-mode step-index fibres.

5. PRINCIPLE
 Transparent concrete works based on
“Nano-Optics”.
 Fibers are placed directly on top of each other.
 Fibers acts like slits & carry light throughout.

6. MANUFACTURING PROCESS
 almost same as regular concrete.
 concrete are poured into the mould in layers.
 On top of each layers, a layer of fibers is
infused.
 Fiber & concrete are alternately inserted into
moulds at intervals of approx. 2 mm to 5mm.
 Adding 4% to 5% optical fibres by volume
into the concrete mixture.

7. MANUFACTURING PROCESS….
 The concrete mixture is made from fine
aggregate & cement.
 1000’s of strands of optical fibres are cast into
concrete.
 Smaller or thinner layers allow an increased
amount of light to pass through the concrete.
 The casted material is cut into panels or blocks
& polished.

8. EXPERIMENTS OF TRANSPARENT
CONCRETE:-
->EVALUATION METHOD OF LIGHT GUIDING:-
ρ=ξ× (J1/J0)×100%
Js0= ρ0 x A1= (W0/A0)x A1
Js1 = ρ1 x N = (W1/ n1) x N
ρs = [ (ξ x N x W1 x A0)/(W0 x A1 x n ) ] X 100 %
ξ-correcton coefficient of measuring equipment
Js0-incident energy
Js1-transmission energy
A1-cross-sectinal area of transparent concrete
N-total number of POF
W0-light energy of incident probe
W1-light energy of transmission probe
ρs – transmittance
n1- number of pof coverd by transmision probe

9. ->LIGHT GUIDING EXPERIMENT USING HALOGEN AND
INCANDESCENT LAMP:-
fig:a
->SELF-SENSING PROPERTY:-
fig: b isocline effect isochromatic effect

10. ->TEST OF MECHANICAL PROPERTY OF
TRANSLUCENT CONCRETE BY FREEZING TEST:-
fig :c Procedure of mechanical properties test after freezing-thawing
fig:d compression test

11. ρf= [(fc0-fcn)/fc0 ]×100
ρf-compressive strength loss
fc0-compressive strength before freeze –thawing test
fcn-compressive strength after freeze –thawing test
->IMPERMEABILITY PROPERTY:-
fig : e procedure of chloride
diffusion coefficent test

12. -seal the boundary with epoxy resin
-POF’s coating rough to increase the compactness

13. APPLICATIONS
 floors, pavements and load-bearing walls.
 Facades, interior wall cladding & dividing walls
 Partitions wall
 In furniture
 Light sidewalks at night.
 Illuminating speed bumps

14. ADVANTAGES
 Energy saving
 Good aesthetical view to the building.
 Concrete is very costly
 Skilled labour needed
DISADVANTAGES

15. CONCLUSION
 developed by adding optical fibre or large
diameter glass fibre .
 good light guiding property
 It doesn’t loose the strength parameter also it has
very vital property from the aesthetic point of view.
 concept of green energy saving

16. REFERENCES
 Bhavin k.Kashiyani,Varsha raina,Jayeshkumar Pittroda,Dr.Bhavnaben
K.Shah,(2013)A Study on transparent Concrete:A Novel Architectural
Material to Explore Construction Sector,International Journal of
Engineering and Innovative Technology(IJEIT),8,2,pp 83-87
 Jainping He,Zhi Zhou,Jinping Ou,(2011) Study on Smart Transparent
Concrete Product and Its Performances,The 6th
International owrkshop on
Advanced Smart Materials and Smart Structures Technology
 en.wikipedia.org/wiki/Translucent_concrete
 wikipedia.org/wiki/Optical_fiber
 byen.wikipedia.org/wiki/LiTraCon
 www.litracon.hu/

17. THANK YOU
“TRANSPARENT CONCRETE IS
DEFINITELY THE PRESENT AND
THE FUTURE”