Properties of polystyrene concrete bricks with silica fume
This project reports the results of experimental investigation on the properties of concrete bricks containing expanded polystyrene beads and silica fume. In the study, lightweight polystyrene concrete can be produced by partial replacement of fine aggregate. Expanded polystyrene beads were used...
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| Main Author: | |
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| Format: | Final Year Project Report |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak, UNIMAS
2009
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/4560/1/Properties%20of%20Polystyrene%20Concrete%20Bricks%20with%20Silica%20Fume%2824pgs%29.pdf http://ir.unimas.my/id/eprint/4560/8/John%20ft.pdf http://ir.unimas.my/id/eprint/4560/ |
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| Summary: | This project reports the results of experimental investigation on the properties of
concrete bricks containing expanded polystyrene beads and silica fume. In the study,
lightweight polystyrene concrete can be produced by partial replacement of fine
aggregate. Expanded polystyrene beads were used as lightweight aggregate for
replacement of sand. In addition, cement was partially replaced by silica fume in order
to improve the properties of concrete. A total of 216 samples of bricks were prepared for
this study. The main purpose of this project is to investigate the properties of polystyrene
concrete bricks such as the compressive strength, weight and density, water absorption,
sulphate attack, sea water attack and finally, expansion and contraction of polystyrene
concrete bricks. The samples were tested in four conditions such as laboratory condition,
tap water, sea water and 5% sulphuric acid. These samples were compared to each other
by taking tap water condition as control. It was found that the bricks have low
compressive strength with high water absorption but with presence of silica fume, the
strength was increased and the water absorption was decreased. There are also changes
in physical properties such as colour and dimension. The experimental study shows that
the properties of polystyrene concrete bricks were mainly influenced by the content of
silica fume and expanded polystyrene beads in the mix. This study also shows the
potential use of recycle materials in construction industry. |
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