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LAPORAN TAHUNAN
UNIVERSITI PERTAHANAN
NASIONAL MALAYSIA
2015
penyel idikan
dan inovasi
Senarai Penyertaan dan Anugerah SIIF 2015
Produk
Water Treatment
Sludge for Carbon
Dioxide Removal
Cellulose Micro/
Nano Fibril (CMNF)
from Natural Bio-
Based
Green Concrete
Retarder
Foldable Beam/
Portable Structure/
Military Bridge
Nama Penyelidik
Prof. Madya Dr. Ong Keat
Khim
Prof. Dr. Fauziah binti Hj Abd
Aziz
En. Muhammad Azani bin
Yahya
Kol Prof. Ir. Dr. Norazman bin
Mohamad Nor
Bil.
1.
2.
3.
4.
Anugerah
Emas
Perak
Perak
Gangsa
Ringkasan Produk
One of the major factors caused the
globawarming and climate change is:
Demand of the vehicles increase every year ≈
1.2 billion cars in the world (2015)
Level of atmospheric carbon dioxide gas >350
ppm (upper safety limit) from 1988 to current
High cost and low removal efficiency of carbon
dioxide adsorbent.
About 80,000 tons of water treatment sludge
produced yearly in Malaysia.
Cellulose micro/nanofibrils (CMNFs) are
extracted and treated from trees and plants
in Malaysia. It is natural and biopolymer
resources.
In construction activity, concrete need to be
mixed with chemical retarder to prolong the
setting time. According to Building Specification
2005 and literature, concrete can set or
hardened in 2 hours. Therefore, for the usage
of transportation and limited pouring time,
especially in the area that far from concrete
plant, chemical retarder has been put to retard
the hardened process. In this research, the
retarder that being promoted is sugarcane
bagasse. The main composition of sugarcane is
the Sucrose (C12H22O11). This content looks
like similar in chemical content for concrete
retarder. Concrete retarder is an admixture used
to prolong concrete setting time for the used
of far concrete delivery and more time needed
in concreting work. This testing to evaluate
the effectiveness of sugarcane bagasse as a
concrete retarder. By using Vicat apparatus
for a penetration test, it can compare the time
taken between normal mortar and mortar with
sugarcane bagasse to set. A few samples
were prepared from the sugarcane bagasse
in some percentage by water/cement ratio of
mortar. The sucrose level will be measured
by refractometer in different mix design. This
product will promote the sustainable waste
material as non chemical adding material in
concrete as a retarder. Several tests have been
made and the result show that the concrete
can be hardened between 4-5 hours without
decreasing the strength. The product that will
be promoted is sugarcane bagasse in concrete
with various sucrose content levels and the
testing procedure that is being done.
This portable structure can be built using
aluminium alloy, steel, and/or CFRP which
are readily available materials. This structure
has been tested and achieved the required
standard.
Portable structures are designed to be light,
simple, and robust. Ready to be deployed
in time of disaster or for military operations
to replace damaged bridge structures
and to bridge any gap for route opening.
It is transportable with minimum transport
requirement and easily erected and recoverable
for future use.