Proposal Presentation
Proposal Presentation
Proposal Presentation
JIMMA UNIVERSITY
07/01/2023 1
JIMMA UNIVERSITY
SCHOOL OF GRADUATE STUDIES
blocks
By Tofik A/Dura
Jimma. Ethiopia
January 02/2013
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PROPOSAL CONTENT
Introduction
Statement of problem
Research question
Objective of the study
Significance of the study
Scope of study
Research methodology
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INTRODUCTION
Hollow Concrete Blocks (HCB) are one of the most widely used walling materials in the
construction industry. It is widely used in residential buildings, factories and multi-
storied building construction. Because of its low cost and speed of installation.
In many construction Concrete is the most widely used material. It consists of a
rationally chosen mixture of binding material such as cement, fine aggregates and
coarse aggregates and also use water as mixture.
From concrete mixture Cement is the essential component to binds the aggregates
together to form the hard and strong structural form.
Over 95% of the cement used in concrete throughout the world is Portland cement.
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Cont.….
Portland cement is currently the most frequently used cement type but its cost is
very high and its production have environmental impact
Using locally available materials as a cement replacement is used to Elevate
environmental and economical impact of cement production. In this specific work I
tray to replace cement by locally available cementitious material (Nech Afer) with
addition of chemical such as Alkali Activator, Silica fume and super plasticizer
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Cont.….
Silica fume are an extremely fine powder. Which used commonly to provide
strength and durability of our work
Super plasticizers are admixtures that increase the workability and flow
ability of concrete with less amount of water.
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STATEMENT OF PROBLEM
During cement production the cement factory release the high amount of CO2 to
the atmosphere this leads to environmental pollution .
We have-not the culture of using locally available material so we have to
Improve the culture of using locally available material by showing one additional
alternative in the production of hollow concrete block
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Cont.…
The cost of cement is higher than other materials due to production, transportation
and other related cost. To minimize the cost of cement in the hollow concrete
block production ,it needs to look suitable alternative materials cheaper than
cement .
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RESEARCH QUESTION
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OBJECTIVE OF THE STUDY
General Objectives
The major objective of this work is to examine the mechanical properties and fracture
behavior of hollow geopolymer concrete blocks.
Specific Objectives
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SIGNIFICANCE OF THE STUDY
This study attempted to ascertain the methods of utilizing nech afer as a substitute for
regular Portland cement for the production of HCB as a result, this provided useful
information as follows
In construction industry lessen cement production's gives positive environmental
effects.
Improving the culture of using locally available material by showing one additional
alternative in the production of hollow concrete block
The use of nech after reduces cement use as well as the Cost of HCB.
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SCOPE OF STUDY
The scope of this research will be producing hollow concrete block which
made from locally available cementitious material (Nech afer ) with addition
of Alkali activator, silica fume, super plasticizer and examining its
compressive strength .
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RESEARCH METHODOLOGY
Research design
The study was conducted in different steps. These include material preparation,
respectively
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The procedure of the work
. Collection of journal
Title selection Paper Related to this writing Introduction
study
Writing
methodology and Collecting Materials
Writing of Literature
needed for the
Review selecting the experimental works
samples
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STUDY VARIABLES
1. Dependent variable
Compressive strength
2. Independent variable
Alkali activator concentration
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POPULATION AND SAMPLING
Population is The number of populations that will take the sample from. its
geopolymer hollow concrete block which made from nech afer.
Sampling Using the following material proportion I will prepare 81 samples for may
experimental investigation
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SOURCE OF DATA
The source of data contains both primary data and secondary data. Primary data
contain experimental investigation for fracture behavior and mechanical
characteristics of hollow concrete blocks.
local cementitious soil ( Nech afer) will be buy from jimma town and the
chemical which will be used as activators will buy from Available market
Where secondary data collected from journal articles, standard code, manual of
test procedure and website.
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DATA COLLECTION PROCEDURE
The journal papers related to this study title will be collected primarily and the
materials that will be needed for the experimental works will buys from jimma
town.
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DATA PRESENTATION AND ANALYSIS
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PROPOSED BUDGET
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PROPOSED WORK PLAN
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JIMMA UNIVERSITY
SCHOOL OF GRADUATE STUDIES
Thank You
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