as a partial substitute for cement, it shows that the
addition of WPS at a certain percentage can increase
the compressive strength of concrete but the
increasing percentage of WPS makes the strength of
the concrete decrease (Bhargavi et al, 2016). The
addition of paper waste to the concrete mixture with
the percentage of paper waste added by weight shows
a significant decrease in the compressive strength of
concrete along with the increase in the percentage of
paper waste addition (Mamta et al and Choudary et
al, 2017 and 2018).
The contribution of this study is very supportive
in overcoming the problem of household waste. In
this case, egg tray waste can be used as an alternative
material for making concrete that is more economical
and environmentally friendly and can be applied by
the society.
2 REVIEW OF LITERATURES
2.1 General
The minimum of research on the use of egg trays in
concrete mixtures, to support this study also refers to
other research on the use of paper waste in concrete
mixtures, which as previously mentioned that egg
trays are the result of processing from paper waste.
2.2 Review of Various Research
• The study conducted by Tarru et al (2018) used a
combination of rice husk ash and egg tray ash as
an additive in concrete. The results showed that
the compressive strength of concrete using rice
husk ash and egg tray with the addition of 10%
reached 16.27 MPa at the age of 28 days.
Meanwhile, normal concrete at the age of 28 days
reaches a compressive strength of 15.33 MPa. In
addition variations of 25%, 55%, 80% and 95%
had compressive strength at the age of 28 days
respectively 8.93 MPa, 4.33 MPa, 2.80 MPa and
3.27 MPa. From these results, the variations of
10% and 25% can be used as lightweight materials
for lightweight structures, while the additions of
55%, 80% and 95% can be used to make non-
structural lightweight concrete.
• Bhargavi et al (2016) conducted a study using
waste paper sludge (WPS) as a partial substitute
for cement. The replacement of cement with an
additional 4% WPS resulted in a concrete
compressive strength of 32.41 MPa at the age of
28 days, while at the same age for normal concrete
it was 30.50 MPa. For the additional conditions of
8%, 12% and 16% WPS, the compressive strength
of concrete at the age of 28 days was 25.42 MPa,
22.19 MPa and 20.56 MPa. This shows that the
addition of WPS at a certain percentage can
increase the compressive strength of concrete but
the increasing percentage of WPS makes the
strength of the concrete decrease.
• The investigation of various proportions of waste
paper in the concrete mixture was carried out by
Mamta et al (2017) with the addition of waste
paper 0%, 5%, 10% and 15% by weight. The
compressive strength of concrete for 0%
condition at the age of 28 days reached 26.27
MPa. With the addition of 5%, 10% and 15%
additional paper waste, the compressive strength
values were obtained which decreased to 19 MPa,
16 MPa and 15.67 MPa.
• Similar results were also obtained by Choudhary
et al (2018) with the use of waste paper pulp as a
partial substitute for sand through variations in the
addition of waste paper pulp by 5%, 10% and 15%
for several conventional concrete qualities. With
the increase in the percentage of waste paper pulp
in the concrete mixture, the compressive strength
of the concrete will decrease.
3 METHODOLOGY
Research and sample testing was carried out at the
Materials Testing Laboratory, Department of Civil
Engineering, State Polythecnic of Kupang using local
materials for fine aggregate and coarse aggregates,
and for cement using PPC type 1. Egg tray waste used
is obtained from household waste as well as from
traditional markets (see Figure 1). Testing for the
characteristic of the material is carried out first to
determine whether the quality of the material used has
met the required specifications standards.
Mixed design was carried out to obtain a
compressive strength of normal concrete with target
f'c=30 MPa. The specimens were made in 4 (four)
sample variations for the percentage of egg tray waste
with variations of 0% for normal concrete, 1%, 3%
and 5% for variations in substitution of fine aggregate
with egg tray. The egg tray waste used is cleaned of
dirt so that it remains in a clean state which is then
made into pulp to be mixed into the concrete. The
percentage of egg tray addition is based on the ratio
to the weight of the fine aggregate. Each sample
variation was made as many as 8 samples of
cylindrical specimens with a diameter of 15 cm and a
height of 30 cm. The specimens was given treatment