Construction and Demolition (C&D)Waste-Management-by-Ruchita.pptx

Prepared By :
RUCHITA JADHAV
Construction & Demolition
Waste Management

INTRODUCTION
 Indian economy is growing fast and consequently there is considerable
rise in construction activities.
 C&D Waste is generated whenever any construction/demolition activity
takes place.
 Due to nature of this waste, negative environmental impacts from C&D
waste are becoming major issue.

WHAT IS CONSTRUCTION AND
DEMOLITIONWATSE??
 Environmental Protection Agency defines C&D waste as
the waste material produced in the process of
construction, renovation or demolition of structures.
 It also includes material generated as a result of natural
disasters.

Present Indian Scenario of Construction and Demolition
Waste
14.5 MT Out Of 48 MT of total solid waste
generated per annum
Ref:-Dr., Asokan Pappu and Dr., Mohini Saxena and Dr., Shyam R. Asolekar (2007) Solid wastes
generation in India and their recycling potential in building materials. Indian Journal Of Environmental
Protection . pp. 2311-2321.

Current practices for C & D waste disposal
 Landfilling
 Waste is disposed without segregation
 Items recovered during construction/demolition
are sold in market at discount rates.
 No penal action is taken against violaters

Construction & Demolition Waste Consist of
 Concrete
 Bricks
 Timber
 Sanitary ware
 Glasses
 Steel
 Plastic

Composition of Construction & Demolition Waste in India
65%
25%
5%
2%
2% 1%
Concrete
Bricks & Tiles
Wood
Metals
Others
Plastic
Ref:-Prof. S.K. Bhattacharyya, A.K. Minocha, Mridul Garg, Jaswinder Singh, Neeraj Jain, S. Maiti & S.K.
Singh, GAP0072 (DST Project), Demolition Wastes as Raw Materials for Sustainable Construction
Products, CSIR-CBRI News Letter,Vol-33 No-2 April-June 2013,pp. 1-2

Typical Steps Followed in C&D Waste
Management
 Storage and segregation
 Collection and transportation
 Recycling and Reuse
 Disposal

Reduction of Waste
 Reducing means choosing to use items with care to
reduce amount of waste generated.
 It can be achieved by -
I. Ensuring materials are ordered on an “as needed” basis to prevent over
supply to site;
II. Minimize the creation of excessive scrap waste on site;
III. Ensuring correct storage and handling of construction materials to
minimize generation of damaged materials/waste;
IV. Ensuring correct sequencing of operations and assigning individual
responsibility.

Continued..
 Reuse (at site) of bricks, stone slabs, timber, conduits,
piping railings etc. to the extent possible and depending
upon their condition;
 Rubble, brick bats, broken plaster/concrete pieces etc.
can be used for building activity, such as, leveling, under
coat of lanes where the traffic does not constitute of
heavy moving loads;

Continued..
 Larger unusable pieces can be sent for filling up low-
lying areas;
 Fine material, such as, sand, dust etc. can be used as
cover material over sanitary landfill.
 Excavated soil can also be used creatively in the
landscaping of developments and for the construction
of embankments and screening/noise abatement berms
in civil engineering projects.

Recycling of waste
 When opportunities for reuse or salvage are exhausted,
recycling is next level.
 Plastics, broken glass, scrap metal etc. can be used by
recycling industries.
 When considering a recyclable material, three major areas
need to be taken in to account are:
1. Economy
2. Compatibility with other materials
3. Material properties

Benefits of C&D waste recycling
 Eases production and emission of greenhouse gas and
other pollutants by reducing need to extract raw
materials.
 Reduces need for new landfills and costs associated
with it.
 Saves energy and reduces environmental impacts.
 Creates employment opportunities in recycling
industries .

Main Issue for Construction & Demolition
Waste Management
 Absence of segregation of waste at source
 Lack of appropriately located recycling facilities
 Indifferent attitude of citizens toward waste management
due to lack of awareness.
 Illegal landfill practices done by contractor for saving money.

Key Requirement of Waste Management
Plan
 Types, quantities and qualities of wastes
 Measures for reducing waste generation
 On-site waste sorting
 On-site and off-site reuse
 Areas for waste storage
 Quantities of wastes requiring off-site disposal
 Monitoring and auditing program

References
 Dr., Asokan Pappu and Dr., Mohini Saxena and Dr.,
Shyam R. Asolekar (2007) Solid wastes generation in
India and their recycling potential in building
materials.Indian Journal Of Environmental Protection .
pp. 2311-2321
 L.Y.Shen, D Drew, and C.M. Tam, (2004), Construction
Waste recycling, Journal of Construction Engineering
and Management,4,Vol 130,pp 472-481

Contd..
 Nixon, P.J., Recycled Concrete as an aggregate for concrete, a
review Materials and Structures, nr. 65, September/October
1978, pp 371–378
 National Construction and Demolition Waste Council -
Annual Report 2002/2003 and Annual Report 2004/2005
 Prof. S.K. Bhattacharyya,A.K. Minocha, Mridul Garg, Jaswinder
Singh, Neeraj Jain, S. Maiti & S.K. Singh, GAP0072 (DST
Project), Demolition Wastes as Raw Materials for Sustainable
Construction Products, CSIR-CBRI News Letter,Vol-33 No-2
April-June 2013,pp. 1-2.

The Choice IsYours
To Landfill To Recycle
THANK YOU

Construction and Demolition (C&D)Waste-Management-by-Ruchita.pptx

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