Demolition Waste in Construction Industry Research 2022

PROMOTING THE USAGE OF DEMOLITION WASTE IN CONSTRUCTION
INDUSTRY IN INDIA
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ABSTRACT
In order to achieve the environmental and sustainable goals in the building and construction
industries, the waste generation from the Construction and Demolition(C&D) as well as their
handlings has been the focus. Considering that the construction company in India has been
growing, it will be proper to link this kind of the growth to the waste generation from the C&D.
In case the measures to handle and minimize C&D wastes are not efficiently and properly
developed, it will definitely pose a threat to the environment. This will impact the sustainability
movement in the construction industry in India as well This particular paper provide the
mechanisms which have been fronted to assist in the promotion of usage of the demolition
wastes in the construction industry in India.
Key Words: Recycling, Construction and Demolition Wastes, Demolition, Sustainable
Construction.

List of Tables
Table 1: ...................................Table showing the total amount of wasted materials in the
process of construction.
Table 2: .....................................Table showing term of service for construction elements
when applied in various construction processes
Table 3: ......................................A table showing the reported estimates for the consumption
amounts of concrete and cement.
Table 4: .......................................Summary of the interviewed companies and
professionals
Table 5:.............................................. Interviews Responses/Results
List of Figures
Figure 1: ...................................................Figure showing the flow of materials during
the operations that can be surpassed by structures like bridges, roads, buildings and many other
during the time of their existence.
Contents
ABSTRACT.................................................................................................................. 2
List of Tables........................................................................................................ 3
List of Figures....................................................................................................... 3
INTRODUCTION........................................................................................................... 3

PROBLEM STATEMENT................................................................................................ 5
RESEARCH SIGNIFICANCE........................................................................................... 6
RESEARCH QUESTIONS............................................................................................... 7
AIMS AND OBJECTIVES................................................................................................ 7
METHODOLOGY AND STRUCTURES............................................................................ 8
LITERATURE REVIEW.................................................................................................. 9
Construction and Demolition Waste in India and other parts of the world
Overview.............................................................................................................. 9
Construction and demolition (c&d) debris estimation in India and its generation
by applying the analysis of materials flow.........................................................10
Waste composition and generation estimates in the past.................................11
Schematic Illustrations.......................................................................................... 13
RESEARCH METHODOLOGY AND DATA COLLECTION................................................19
Concretes........................................................................................................... 20
Wood.................................................................................................................. 21
Drywall............................................................................................................... 22
CASE STUDY:............................................................................................................ 23
300 TPD Construction and Demolition Waste Management in Ahmedabad Cit. .23
FINDINGS.................................................................................................................. 24
Interview Analysis.............................................................................................. 24
DISCUSSION.............................................................................................................. 26
The Indian C and D debris recycling......................................................................27
CONCLUSION............................................................................................................ 29
ACADEMIC CONTRIBUTION....................................................................................... 30
FUTURE RESEARCH................................................................................................... 31
REFERENCES............................................................................................................ 32
INTRODUCTION
The industry of the construction has been identified to be the main contributor to the generation
of the solid waste in the whole world. The surveys which hence been carried out in most parts of

the world particular in countries like India have shown that the generated solid waste from the
construction industry is equivalent to about 20% to 30 % of the entire waste which entire the
landfill from various sectors. The accumulation of the solid wastes and how to generally manage
the C%D wastes is currently becoming a bigger challenge or concern to the builders and the
town planners. This challenge has perpetuated the damping site shortage, increase the cost of the
conveyance and disposal costs and finally it has led to the increase in the pollution as well as
deterioration of the environment.
The construction and demolition waste which is commonly known as CDW usually arises from
construction activities in the case of thee civil infrastructure, partial or total demolition of the
civil infrastructure or buildings, planning and maintenance of the road among others. In India,
even the wastes from the leveling of land are usually regarded to be part of the demolition waste.
The undesirable effects of the C%D wastes started when their dumping were being done in the
streams, forests, rivers and parts of the empty land leading to tye contamination of the water
bodies, water tables and wells (Thomas and Wilson 2013)
The research work has estimated the total amount of the waste from the construction industry in
the form of solid to be about 1.3 billion tonnes every year. The volume of the solid wastes from
the construction industry is expected to increase to 2.2 billion by the year 2025 according to the
reports given by the World Bank. The materials of the building accounts for nearly half of all the
used objects and also half of the generated solid waste worldwide. In India alone, the
construction industry generates over 12 million of tonnes of the demolition and construction
wastes annually. From this value, Pune contributes to almost 125 tonnes on the daily basis. In
India, the demand for the materials for building in the next 5 years has been estimated to 380
million of tones of cements, 600 million tonnes of the bricks, 50 million tonnes of steel, 400

million cubic metres of timber and 400 million cubic metres of aggregates. This kind of the
estimate has been done by Building Materials and Technology Promotion Council (BMTPV).
From this data, there are indications of the shortage of the shortage of the traditional as well as
conventional materials for building in India.
PROBLEM STATEMENT
The debris of the construction and demolition is one of the waste materials which results from
the renovation, construction and finally demolition of any structure. The components of the
wastes is typically made of asphalt, Portland cement concrete, soil, plastics, metals, wood,
drywall, asphalt shingles and finally the asphalt concrete. The debris of C&D is typically
recycled, disposed or incinerated. Considering that most of the states usually regulate the stream
of such wastes and every state has its own law, the disposal can be done unlined and in lined
landfills depending on where the disposal is to be done. The C&D debris may be undertaken
through the recycling process at any facility of the recycling in which it will serve as a
replacement to the natural resource. In some cases it can be re-used directly from the site of the
construction. Certain materials like wood can be taken through incineration process and the
energy from incineration used in the electricity generation.
Despite the fact that reuse and reduction are the preferred methods of the demolition waste
management, recycling is apparently being pursued as a more realistic method of the waste
management that has very little impacts on the environment than the other current disposal
practices. It is however regrettable that there has never been sufficient evidence to be used in the
determination of recycling of debris from C&D is truly having the fewest impacts on the
environment as compared to other methods of the management in India. Furthermore the

comparison of the impacts of methods used in the Promotion of the Usage of Demolition Waste
In Construction has been identified as part of the research gap.
RESEARCH SIGNIFICANCE
When there is demolition of any structure, there will be production of large amount of wastes
within a very short time. This will however be dependent on the type of the demolition technique
which has been used. In ordinary conditions, concrete will contain about 80% of aggregate and
12% cement by mass. This implies that globally, there is consumption of gravel, sand, crushed
rocks at the approximated rate of 10 to 1 billion tones every year. The transport, processing and
mining operations usually involve such large quantities of the aggregate which are consumed

with considerable amount of energy. The presence or location in specific points is known to
affect the ecology very adversely particularly the forested areas and riverbed. This implies that
there is urgent need for the establishment of the proper waste management in such cases.
Similarly, while considering the infrastructure of India in the future which continues to expand, a
lot of waste will be generated and this will further call for the proper management of the wastes
of the construction and demolition which definitely rise (Kumar and Pandit 2013).
RESEARCH QUESTIONS
 What are the potential sources of the solid wastes? Are the solid wastes generated from
buildings alone or other infrastructure as well? What classification is used?
 What are the currently available systems of the demolition and construction waste
management in India?
 What are the projected impacts of the solid waste from the demolitions of the civil
structures in India in the years to come?
AIMS AND OBJECTIVES
 To evaluate the effectiveness of material flow analysis in the estimation of the amount of
waste as well as composition of the generated waste in the case of the C&D debris in
India.
 To determine the existence of the sufficient capacity of the market in the recycling of
C&D materials of debris in India.