Submitted by: 12 STEM Sincerity Group 3
● Borja, John David
● Formacion , Xen
● Roxas, Christian
● Bentinganan, Yvonne
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●
●
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David, Dhemrecai
Lagoyo, Donna
Salazar, Athena
Torrida, Roxette
Group Performance Task 4
Crafting your Research Problem and Scope and Limitation
On the next page is a Guide Matrix on how to develop your working Research Questions. Read Each question and
prompt carefully and answer on the space on each matrix below each question. Use the matrix to make a draft pf your
final output. Your answers on the matrix will be graded. A sample statement of the problem and scope and limitation are
provided for your reference. Write your answers on the worksheet.
1. What topic,
problem, or issue
are you interested
in from those you
identified from
last week?
Do some
background
research to find out
more about it.
Recycled
Construction
Materials
2. What specific part of
the topic are you
interested in?
Ask: What? Who? When? Where? Why? How?
Break down topic and
group ideas in clusters
(use reverse). Pick one
cluster or part of one.
●
●
●
Alternative
Fiber-Reinforced
Concrete made with
Concrete admixture
from waste materials
4. Choose one to
be
your
main
research question.
5. Make your question
as clear and specific
as possible.
Why or How
questions are best.
Specify who, what,
where, when you are
talking about. Clarify any
vague words.
How
can
we
produce
an
alternative
fiber-reinforced
concrete
with
recycled
surgical
face masks as a
compressive
and
tensile
strength
boosting concrete
admixture?
3. List a few possible questions about your specific
topic area.
● What will happen to the
compressive and tensile
strength of concrete
after the varying
amounts of grinded
three-ply surgical face
masks were added as
concrete admixture?
● Is there going to be a
significant difference
among the varying
amounts of shredded
three-ply surgical face
mask on the
compressive strength
(or resistance to getting
squashed) of the
concrete?
● Is there a significant
difference among the
varying amounts of
shredded three-ply
surgical face mask on
the tensile strength (or
resistance to being
broken) of the concrete?
●
What is fiber reinforced concrete?
What materials can be used to make fiber reinforced
concrete?
How can waste materials like face masks be used in
fiber reinforced concrete?
Why are waste materials like face masks suitable as
concrete admixtures?
6. State your possible scope or coverage of your
research question.
The scope or coverage will also help you identify to focus on
what variables you are going to study. If you can identify the
IV and the DV, much better
This study will focus on investigating the feasibility of using
waste facemask as concrete admixture in making alternative
fiber-reinforced concrete blocks. The varying amounts of the
processed waste facemasks admixtures will be the
independent variable. Meanwhile the dependent variables that
will be tested after the varying amounts of face mask
admixtures have been incorporated into the concrete blocks
are the compressive strength and tensile strength properties.
According to Kuma (2016), compressive strength refers to how
much pressure a material can withstand before it begins to
deform by reduction in size or get squashed. Tensile strength
refers to how much force is required to pull something until it
breaks. These two parameters are the most essential
properties considered in testing concrete block design and
structure. A universal testing machine (UTM), also known as a
universal tester, materials testing machine or materials test
frame, is used to test the tensile strength and compressive.
Although assessing the durability would have been ideally
included by the researchers, the rapid chloride permeability
test (RCPT) required in this testing is time-consuming (needs
at least 28 days to acquire valid results) and costlier compared
to evaluating the compressive and tensile strength of concrete.
The the study will be performed in Bacolod City, Negros
Occidental, Philippines, from February to July 2023. Only
locally available coarse aggregates, cement, and sand will be
used in the making of the concrete blocks. Similarly, the waste
face masks to be used will also be collected from Negros
Occidental High School, Bacolod City. However, only 3-ply
surgical face masks, regardless of their brand, will be utilized
to ensure the close uniformity of fiber content. Additionally,
only the 3-ply filter component will be utilized since it makes up
the majority of face mask structure and it is where the
necessary concrete (polypropylene) fibers can be derived
from. This means that other parts of the mask like the earloop,
metal nose clip, and glued edges will be disregarded.
Furthermore, true-experimental research design will be used in
assigning base concrete mixtures to the varying amounts of
waste facemask admixtures. The data obtained from the study
will be analyzed with inferential statistical calculations using
the Microsoft Excel Toolpak 2007 from which mean will be and
One-way Analysis of Variance (ANOVA) at 0.05 level of
significance will be computed to determine the effect of
incorporating the waste face mask admixture and the
significant difference between setups.
Statement of the Problem
The main objective of this study is to produce an alternative fiber-reinforced concrete with recycled surgical face
masks as a compressive and tensile strength boosting concrete admixture.
Specifically, the study sought to answer the following questions:
1. What is the effect of the varying amounts of grinded three-ply surgical face mask concrete admixture on the
compressive and tensile strength of the concrete?
2. Is there a significant difference among the varying amounts of shredded three-ply surgical face mask on the
compressive strength of the concrete?
3. Is there a significant difference among the varying amounts of shredded three-ply surgical face mask on the
tensile strength of the concrete?
Scope and Delimitation
This study will focus on investigating the feasibility of using waste facemask as concrete admixture in making
alternative fiber-reinforced concrete blocks. The varying amounts of the processed waste facemasks admixtures will be
the independent variable. Meanwhile the dependent variables that will be tested after the varying amounts of face mask
admixtures have been incorporated into the concrete blocks are the compressive strength and tensile strength properties.
According to Kuma (2016), compressive strength refers to how much pressure a material can withstand before it begins
to deform by reduction in size or get squashed. Tensile strength refers to how much force is required to pull something
until it breaks. These two parameters are the most essential properties considered in testing concrete block design and
structure. A universal testing machine (UTM), also known as a universal tester, materials testing machine or materials test
frame, is used to test the tensile strength and compressive. Although assessing the durability would have been ideally
included by the researchers, the rapid chloride permeability test (RCPT) required in this testing is time-consuming (needs
at least 28 days to acquire valid results) and costlier compared to evaluating the compressive and tensile strength of
concrete.
The the study will be performed in Bacolod City, Negros Occidental, Philippines, from February to July 2023. Only
locally available coarse aggregates, cement, and sand will be used in the making of the concrete blocks. Similarly, the
waste face masks to be used will also be collected from Negros Occidental High School, Bacolod City. However, only
3-ply surgical face masks, regardless of their brand, will be utilized to ensure the close uniformity of fiber content.
Additionally, only the 3-ply filter component will be utilized since it makes up the majority of face mask structure and it is
where the necessary concrete (polypropylene) fibers can be derived from. This means that other parts of the mask like
the earloop, metal nose clip, and glued edges will be disregarded. Furthermore, true-experimental research design will be
used in assigning base concrete mixtures to the varying amounts of waste facemask admixtures. The data obtained from
the study will be analyzed with inferential statistical calculations using the Microsoft Excel Toolpak 2007 from which mean
will be and One-way Analysis of Variance (ANOVA) at 0.05 level of significance will be computed to determine the effect
of incorporating the waste face mask admixture and the significant difference between setups.