Construction and demolition waste

1. Presented by : Lingaraj Patil
Under the Guidance of : Dr. M V Renuka Devi
(Associate Professor, Civil Dept., RVCE)

2. CONTENT:
 Definition
 Categorization of CDW
 Recycling
 Why Recycling?
 Recycling Process
 Literature Review
 Problem Statement
 Objective
 Strategy to mitigate problem
 Priority Criteria.

3. What is CDW?
Construction Waste Demolition Waste

4. Categorization of CDW:
Major components Minor components
 Cement concrete
 Bricks
 Cement plaster
 Steel
 Rubble
 Stone
 Timber/wood
 Conduits
 Pipes
 Electrical fixtures
 Panels
 Others (glazed tiles,
glass panes)

5. Negative Impact of CDW

6. Recycling:

7. Why Recycle

8. Recycling Process

9. LITERATURE REVIEW

10. This paper highlights the composition of Construction and Demolition
waste, the need for its recycling and options that can be implemented for its efficient
use in the field of concrete technology in general.
1) CONSTRUCTION AND DEMOLITION WASTE RECYCLING
FOR SUSTAINABLE GROWTH AND DEVELOPMENT

11. 2) Economic Aspects of Construction Waste Materials in terms
of cost savings – A case of Indian construction Industry.
The paper aims to focus on the economic feasibility of waste
minimization of construction waste materials in terms of cost savings in India.

12. 3) UTILIZATION OF RECYCLED AND WASTE MATERIALS IN
VARIOUS CONSTRUCTION APPLICATIONS.
This study presents an initial understanding of the current strengths and
weaknesses of the practice intended to support construction industry in
developing effective policies regarding uses of waste and recycled materials as
construction materials.

13. Problem Statement:
1) Major General Problems:
 Shortage of Land.
 Shortage of Resources.
 Traffic Congestion.
 Ground Water Pollution.
 Environmental Impact.

14. Methods:
 Storage and Segregation.
 Collection and Transportation.
 Recycling and Reuse.
 Disposal.

15. 2) Problems related to Industry.
 Lack of Awareness in Industry
 Lack of interest from clients
 Lack of proper training and education
 Lack of skilled labor
 Lack of market competition
 Lack of Government Interventions
 Lack of waste reduction approach by architects

16. Objectives:
 To have Sustainable development.
 To Incorporate 3R Concept.
 Prevent the depletion of Natural resources.
 Ensuring Universal Education
 Reduce the Time Consumption.
 Waste as Renewable resource.
.

17. Strategy to Mitigate the Problems
 Government Initiative - Policy Implications.
 Create awareness among clients and contractors.
 Training and Education.
 Management Interactions

18. Priority Criteria
First Priority
1)Change Industrial
Process t0 eliminate
pollution.
2)Introduction of
Policies.
3)Make products
that last longer and
are recyclable,
reusable, or easy to
repair.
Second Priority
1)Reuse Product.
2)Repair Product
3)Recycle.
4)Buy reusable and
recycle products.
Third Priority
1)Treat waste to reduce
toxicity
2)Incinerate Waste
3)Bury waste in
Landfills
4)Release waste in
environment for
dilution.

19. EFFORTS IN INDIA:
 Produces 70 million tons of MSW.
 35% of MSW is CDW.
 Exponential increase in:
1) Population
2) Waste
 Construction waste – 40 - 60 kg/m2
 In Delhi, Varanasi, Jaipur, Kolkata waste recycling plants have
been situated.

20. In India the current process is to achieve:

21. Applications:
 Tires are used dock bumpers.
 Asphalt when recycled is used in pavement edges.
 Recycled aggregates are used in sub-base course.
 Glass used in decorative tile.
 Waste rubber in elastic paving material.
 Waste plastic used as signposts.
 Blast furnace slag as cement for concrete.
 Waste glass as lightweight foundation material.
 Landscape and garden architecture as shown below:

23.  Capita increase of the recycling industry
 More jobs for the needy people since no qualification
is required.
 Work load for municipal is reduce in terms of cleaning
and also cost is reduced
 Low cost than the available material.
 Reduction of unnecessary landfills around the city.
 Economic growth of the country.
Economic advantages:

24. Environmental Benefits

25. Conclusions:
 There should be proper guideness about the storage,
transportation, and disposal of waste.
 The sanitary or the health department should be made
responsible for the C&D wastes.
 The authority should get the day to day information
about the wastes.
 First and foremost most thing is to create awareness
among the engineer, contractor and the industry about
recycling of the waste generated during construction.
 Proper system must be brought to dispose the waste
which are not of really use i.e. inert materials.

26. References:
 Hemalatha B.R, Nagendra Prasad, B.V. Venkata Subramanya, “Construction and demolition
waste recycling for sustainable growth and development” Journal of Environmental Research
and Development Vol. 2 No. 4, April-June 2008.
 Mansi Jain, “Economic Aspects of Construction Waste Materials in terms of cost savings – A
case of Indian construction Industry” International Journal of Scientific and Research
Publications, Volume 2, Issue 10, October 2012 1 ISSN 2250-3153.
 Johnny Bolden, Taher Abu-Lebdeh and Ellie Fini, “Utilization of Recycled and Waste
materials in various construction applications” American Journal of Environmental Science, 9
(1): 14-24, 2013 ISSN: 1553-345X, 2013.
 Ranjith Kharvel Annepu, “Sustainable Solid Waste Management in India” January 10,
2012.
 Central Statistics Office Ministry of Statistics and Programme Implementation
Government of India, “SAARC, India Country Report” 2013.
 Colin Jeffrey, “Construction and Demolition waste recycling Dalhousie University’s Office
of Sustainability” September 2011.
 Waste and Recycling Notes Waste Disposal, Read Miller