The major purpose of this study was
to determine the needs for environmental friendly materials for building
construction. The population of the study consisted mostly of big constriction
firms in Anambra State that have had more than five years of active construction
experience the sample for the study was 10 reputable construction firms which
were drawn using simple random sampling. Four research questions and two
hypothesis were formulated, which guided the study. A 30-item structured
questionnaire was developed for data collection. Frequency count / percentages
and weighted mean (likert scale) were used to answer the research questions,
which chi-square was used to test the hypothesis at 0.05 level of significance.
It was concluded among others that environmental unfriendly building materials
has serious negative impacts on the environment. Which needs an urgent
attention in other to save the environment from global warming and other
negative effects. Based on the findings and conclusions drawn from the study
recommendations were made for Anambra
State government to take a legislation that will help for effective use of
environmental friendly material for building construction in Anambra State.
TABLE OF CONTENTS
Table of contents vii
1.0 Introduction 1
of the study 1
1.2 Statement of
the problem 2
aims and objectives 3
of the study 4
1.7 Study area 5
of terms. 5
2.0 Literature Review 8
2.1 Negative Impacts
2.1.1 Extraction of raw materials
2.1.2 Construction Waste
Use / Maintenance
Effects of using environmentally friendly material for building
Environmental friendly materials is describe by the dictionary as a product
that has been designed to do the least possible damage to the environment.
Reusable or Recyclable
Durability and Life Span
Improve Indoor Air quality
Reduce environmental Impact
Characteristics that determine the Environmental sustainability of given
Pose building Phase
To be reused in its entity
To be recycled or Down cycle
To be discarded
Features of environmentally friendly Materials
Pollution prevention measures
Waste Reduction Measures
Live cycle analysis for automobiles
Embodies energy measurement
Derivable benefits in using environmentally friendly materials for building
Re-education of construction waste
of data collection 28
3.2.1 Primary data 28
3.2.2 Secondary Data 28
of the study 29
of Investigation 31
3.7.0 Validity and Reliability of the measuring
3.8.0 Administration of questionnaires and
3.9.0 Method of Data Analysis 36
study / Data Presentation / Analysis and Interpretation of data 37
Conclusion and Recommendation 67
of findings 67
effects of using environmentally friendly materials
for building constructions 68
5.1.3 The characteristics that determine the environmental
sustainability of a given building materials 68
derivable benefits in using environmentally friendly
materials for building construction. 69
OF THE STUDY
In recent years more and more attention is being
paid to the environmental impacts of building materials. The constantly
increasing cost of energy and raw materials force the construction industry to
think about alternatives such as renewable energy sources and raw materials and
the reduction of wast.
Climate change and environmental pressures are major
drivers for the promotion of environmental friendly materials.
Furthermore, this trend is spreading fast and the
international document stating intent of being more environmental friendly one
as presented. The Kyoto protocol, the energy performance of building directive
of the EU, Eneergy Efficiency Directive. In line with the desire for
environmental friendly materials, some government have change their legislation
setting targets for the sustainability of public and residential
buildings. On the other hand, statistics
show that an important factor for the well-being of the inhabitants is the
choice of building materials, “unhealthy” materials cannot only cause environmental
problems but can equally cause asthma and cancer and therefore it is extremely
important to choose low emitting building materials. We spend most of our times
indoors and building materials influence the “health” and safety of the indoor
building industry in Anambra state is rapidly changing-new building materials
are all the time emerging on the market and new construction techniques are
being developed and more and more challenging designs are being developed to be
built it in the expectation that the next building generation will be of low
energy and sustainable building materials. The first step towards environmental
friendly construction is the appropriate choice of building materials. This is
a challenging task and which this research intends to investigate to ascertain
the environmental impacts of the chosen materials before the design and
1.2 STATEMENT OF THE PROBLEM
The use of environmental unfriendly materials in
building construction is a major environmental problem that significantly needs
attention. When environmental problem arises as a result of impacts of toxic
construction materials the effect of those materials to the environment must be
immediately assessed, which outcome depends upon a number of factors.
1) Why is
one material environmentally friendly and another not?
cycle assessment of a material and its characteristics.
3) How every phase of the life of a material
influences the environment?
4) The impacts of construction materials like
concrete, block and timber to the environment.
rating of embodied energy of a material.
6) The criteria that determine the
sustainability of a building materials in a given environment.
The effects and consequences of using
environmentally unfriendly materials have posed the challenge for the
development and use of alternative materials that are friendly to the
environment in the building construction industry.
AIMS AND OBJECTIVES
The aim of this study is to examine the need for the
use of environmentally friendly material for building
construction in Anamba State.
With the following objectives.
identity the negative impacts on the environment by the use of unfriendly
2) To evaluate
the effects of using environmentally friendly materials for building
ascertain the characteristics that determine the environmentally sustainability
of a given building material.
articulate the benefits in using environmentally friendly materials for
1.4 SIGNIFICANCE OF THE STUDY
The findings of this
study will largely contribute to and influence the use of environmentally
friendly materials for building construction.
1) Use of
environmentally friendly materials will promote conservation of dwindling
non-renewable resources in Anambra State.
friendly materials when used will help to increase the energy efficiency in
construction and reduce negative impacts on human well being.
define systematic approach, where by use of environmentally friendly material
will ensure environmental sustainability.
1.5 RESEARCH QUESTIONS
1) What are
the negative impacts on the environment by the use of unfriendly building
2) What are
the effects of using environmentally friendly materials for building
3) What are
the characteristics that determine the environmental sustainability of a given
4) What are
the derivable benefits in using environmentally friendly materials for building
1.6 RESEARCH HYPOTHESES
following null hypothesis was formulated for the study to be tested 0.0.5 level
unfriendly building materials does not have any significance impacts on the
unfriendly building materials has a significance impacts on the environment.
1.7 STUDY AREA
This study was carried
out in Anambra State, South-eastern Nigeria.
It boundaries are formed by Delta State to the West,
Imo State and Rivers State to the South, Enugu State to the east and Kogi State
to the North. A coordinates: 6.20N 7000.E with a total Area of
4,844km2 (1.870semi) population (2006 census) 4,055.048 (Anambra
1.8 DEFINITION OF TERMS
* Environment: The natural conditions in
which people, animals and plants live (Oxford Dictionary).
* Environmental friendly materials: A
product that has been designed to do the least possible damage to the environment.
* Embodied Energy: The sealer total to energy input required to produce the
product including transporting them to the building site.
* Biodegradable: Materials ability to
change to a harmless natural state by the action of bacteria (oxford