This document discusses construction and demolition waste management. It notes that demolition sites generate large amounts of solid waste that is difficult and uneconomical to recycle. However, it is possible to reuse many building materials and components. The document recommends allowing waste to be crushed and processed for reuse as aggregate in building works. It also discusses reducing waste generation during construction projects and recycling or reusing materials on-site when possible. The main challenges with construction waste management are lack of source segregation, insufficient recycling facilities, and illegal dumping practices.

1. CONSTRUCTION & DEMOLITION
WASTE MANAGEMENT
By VIKRAM.M.S
UNDER THE GUIDANCE OF
Mr. VIKAS

2. INTRODUCTION
 Demolition sites & restoration schemes are large amounts of solid
waste.
 Recycling of concrete & other building materials is difficult &
uneconomical.
 It is possible to reuse most of the building materials & components.
 As the volume of demolition waste is huge allowing the waste to be
crushed, processed, & reused as aggregate in building works.
 The recycling of construction materials like concrete, timber , glass, &
steel is primarily an attempt to reduce the cost of production of new
materials & construction & also reduce the consumption of natural
resources.

3. CONSTRUCTION AND DEMOLITION
Waste building materials, dredging materials that are
produced in the process of constructions, remodelling,
repair, or demolition of residential buildings, commercial
buildings and other structure and pavements.

4. CLASSIFICATION OF WASTE

5. CONSTRUCTION & DEMOLITION WASTE CONSIST OF
Concrete
Bricks
Timber
Sanitary ware
Glasses
Steel
Plastic

6. COMPOSITION OF CONSTRUCTION & DEMOLITION
WASTE IN CHINA

7. INCREASE OF CONSTRUCTION & DEMOLITION WASTE
Many old buildings, concrete pavements, bridges and other
structures have overcome their age and limit of use due to
structural deterioration beyond repairs and need to be
demolished
New construction for better economic growth
Structures are turned into debris resulting from natural disasters
like earthquake, cyclone and floods etc.

8. REDUCTION OF WASTE
 Ensuring materials are ordered on an “as needed” basis to
prevent over supply to site;
Minimize the creation of excessive scrap waste on site;
Ensuring correct storage and handling of construction
materials to minimize generation of damaged
materials/waste;
Ensuring correct sequencing of operations and assigning
individual responsibility

9. RECYCLING AND REUSE
 Reuse (at site) of bricks, stone slabs, timber, conduits, piping railings etc.
to the extent possible and depending upon their condition;
 Plastics, broken glass, scrap metal etc. can be used by recycling
industries;
 Rubble, brick bats, broken plaster/concrete pieces etc. can be used for
building activity, such as, levelling, under coat of lanes where the traffic
does not constitute of heavy moving loads

10. 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.

11. 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

12. CONCLUSION
It has been established that materials & components from
demolished buildings are being reused for new construction
works as well as renovation projects, especially by low-
income communities in developing countries.
In developing countries most of the demolition rubble is
dumped, the developed world has now started to recycle it
into aggregate for non-structural concrete.

13. REFERANCE
 Abert, J.G., Resource Recovery Guide, New York: Van Nostrand
Reinhold Co., 1983.
 o Akman, M.S., A. Güner, and I.H. Aksoy, "Historical and Technical
Specifications of the Khorasan
 o Mortar" (Horasan Harci ve Betonunun Tarihi ve Teknik Özellikleri),
2nd International
 o Congress on the History of Science and Technology in Turko-Islamic
Era, ITÜ, Istanbul, 1986.
 o Hendriks, Ch.F., 'The Use of Concrete and Masonry Waste as
Aggregates for Concrete Production inthe Netherlands', Environmental
Technology: Proceedings of the 2nd. European Conference in