SEMINAR ON

TRANSPARENT CONCRETE

BY,

JOHNS ABRAHAM 7TH SEM CA

MACE,KOTHAMANGALAM

CONTENTS INTRODUCTION MATERIAL USED PRINCIPLE MANUFACTURING PROCESS EXPERIMENTS OF TRANSPARENT CONCRETE

APPLICATIONS ADVANTAGES AND DISADVANTAGES CONCLUSION REFERENCES

INTRODUCTION

Transparent concrete - Light-Transmissive property.

Light-Transmissive property- uniform distribution Plastic Optical Fibres (POF) .

Also known as Translucent concrete, LiTraCon.

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.

PRINCIPLE

Transparent concrete works based on “Nano-Optics”.

Fibers are placed directly on top of each other. Fibers acts like slits & carry light throughout.

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.

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.

EXPERIMENTS OF TRANSPARENTCONCRETE:-->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

->LIGHT GUIDING EXPERIMENT USING HALOGEN AND INCANDESCENT LAMP:-

fig:a

->SELF-SENSING PROPERTY:-

fig: b isocline effect isochromatic effect

->TEST OF MECHANICAL PROPERTY OF TRANSLUCENT CONCRETE BY FREEZING TEST:-

fig :c Procedure of mechanical properties test after freezing-thawing

fig:d compression test

ρf= [(fc0-fcn)/fc0 ]×100ρf-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

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

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

ADVANTAGES

Energy saving Good aesthetical view to the building.

Concrete is very costly Skilled labour needed

DISADVANTAGES

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

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/

THANK YOU

“TRANSPARENT CONCRETE IS DEFINITELY THE PRESENT AND

THE FUTURE”