This document presents information on self-repairing roads. It discusses how Professor Nemkumar Bhantia developed roads made of self-healing concrete that repair cracks on their own. The document outlines the types of self-healing concrete that exist, the materials used including fly ash and special fibers, and a case study where this type of road was successfully implemented in a village in India. The self-repairing roads were found to be more durable and sustainable than traditional roads, and could stay intact for 15 years with only half the maintenance costs.

1. SELF REPARING ROAD
PRESENTED BY :
V.HEMALATHA
NM2104TE03
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2.  Introduction
 History
 Types of self healing concrete
 Materials
 Case study
 Advantages
 Disadvantages
 Conclusion
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3. INDIAN ROADS DURING MOONSOON
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4. SOLUTION FORTHIS PROBLEMS ISTO CONSTRUCT SELF HEALING
ROADS
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5. INTRODUCTION
 Self healing described as the
material that is capable of repair
itself when cracks occured.
 Some of the old structure remains
strong even today despite limited
maintanance because of these self
healing concrete.
 Healing general occurs in only
small cracks(upto 5mm).
 High durability compared to other
type of roads.
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6. HISTORY
 Nemkumar Bhantia, a professor in the Civil
Engineering Department at University of British
Columbia (UBC) in the Canada, has developed
roads that are self-repairing, sustainable, long-
lasting, and cost-effective.
 He and his team elected for implement of self
reparing roads inThondebavi village near
benguluru highway for the trial run.
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Prof.Nemkumar Bhantia

7. TYPES OF SELF HEALING CONCRETE
 using microfibers
 using micro-organisms/ biotic concrete
 using superabsorbent polymers
 using encapsulated polymers
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8. MATERIALS
 High strenght concrete
(concrete with a specified compressive strength of 55 Mpa )
 Fly ash
 Fibers (HY5)
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9. Fly ash
 Cement is replaced by fly ash
 It reduce the overall carbon footprints
(green house gases )
Fibre
 Hydrophilic nano coating
 This fibers attractes water in moonsoon
 It is also called as HY5 fibre
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10. CASE STUDY
 This project was held inThondebhavi, at Karnataka.
 The HY5 fibres on these roads make them more durable.
 Cement in the concrete is replaced with fly-ash, reducing the overall carbon
footprint of the roads.Hence the road so made is more sustainable than the
traditional method.
 Once paved, they can stay intact for 15 years, making the technology very cost-
efficient- the cost of maintaining these roads throughout their lifespan is half of
what it takes to pave regular roads.
 The self-repairing tendency of these roads, coupled with their high strength and
reduced carbon footprint, gives them an edge over regular roads like no other.
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11.  Self healing roads are 60% thinner than ordinary roads.This implies that these roads
require less concrete to be paved.The fibres on these roads make them more durable.
 The success story of these roads inThondebhavi has gained a lot of traction. A lot of
Government agencies and private companies are now interested in this technology and
also planning other 2 projects in india at haryana and madhya pradesh.
 The Karnataka Government has already agreed to a partnership deal. A stretch of this
road has also been paved in the Chawthil First Nation community in Canada.
 These roads have already seen success in India.The first working model of this
technology was implemented inThondebhavi, Karnataka, on an experimental basis.
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12. • MR.NEMKUMAR BHANTIYA AND HISTEAM MEMBERS ELECTED FOR
IMPLEMENTATION OFTHE SELF REPARING ROAD INTHONDEBHAVIVILLAGE
NEAR BENGALURU HIGHWAYAND AFTER CONSTRUCTION IN OCTOBER 2015
IT MONITOREDTO DESPITE WEATHER FLUCTUATIONS AND AFTER BEING
STURDY FOR MORETHAN 1YEARTHEIR PROJECT HAS BEEN DECLARED A
SUCCESS.
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13. ADVANTAGES
 Self-repairing of concrete without any external applications.
 The permeability of concrete is reduced.
 The flexural strength and compressive strength of self healing
concrete are greater than the normal concrete
 Ecofriendly
 Cost effective
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14. DISADVANTAGES
 Silked labours required
 Investigation is costlier and more time taken
 Not useful for heavy loads
 Design standards of self healing concrete are not available in any IS codes
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15. CONCLUSION
 From these studies, it is clear that we can implement this technology to improve the
properties of concrete.
 When we compare the cost with sustainability, for long term solution, the self
healing of concrete is dominating the conventional one.
 In the future, self healing concrete is going to revolutionize the construction
industry.
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16. THANKYOU
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