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Effect of utilisation of nano pofa on performance of self-consolidating high-performance concrete (SCHPC)
Nuradila,Izzaty,Halim,1, Aidan,Newman,2, Muhd,Norhasri,Muhd,Sidek,3, Hamidah,Mohd,Saman,4, Nurul,Huda,Suliman,5.
ABSTRACT
Malaysia's palm oil industry plays a significant role in the country's
economy. However, a large amount of palm oil fuel ash (POFA), a by-product
of this industry, may negatively affect the environment and human health.
Hence, this study hypothesized that POFA might be re-used in the form of
replacement in concrete to lessen the risk to the environment or human
health. Self-consolidating high-performance concrete (SCHPC) has been
innovating progressively over the years. In this paper, SCHPC is innovated
by utilising nano POFA (NaPOFA) to improve its performance. The POFA
performance greatly improved when the particle size is reduced because the
finer forms of POFA react effectively with the other constituent materials
to produce stronger concrete. Hence this paper presents the experiment
of the effect of utilisation of NaPOFA as a replacement to cement ranging
between 0% and 10% to produce a self-consolidating high-performance
concrete with good workability. The tests conducted were the flow table
and compression test. The specimen used in the compression tests were 50
mm concrete cubes, tested in 1, 3, 7, 14, and 28 days. It was found that the
inclusion of 1% POFA as a replacement to cement in concrete produced
the highest compressive strength, 73.31 MPa, on the 28th day of testing. It
was also found that its workability was as good as the control concrete.
Thus, the utilisation of POFA could be considered environmental-friendly since it can be used as cement replacement and enhance the performance in terms of workability and strength.
Affiliation:
- Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
- Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
- Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
- Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
- Universiti Teknologi MARA, Shah Alam, Selangor, Malaysia
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