Behavior of composite layered slab of eps concrete and normal concrete
The use of expanded polystyrene (EPS) beads in fully or partially replacing the normal aggregate is prevalent in the construction industry nowadays. The present study covers the use of EPS concrete layer to replace the bottom concrete cover of normal reinforced concrete slab. The aim of this proj...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English English |
| Published: |
Universiti Malaysia Sarawak, UNIMAS
2009
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/4526/ http://ir.unimas.my/id/eprint/4526/1/BEHAVIOR%20OF%20COMPOSITE%20LAYERED%20SLAB%20OF%20EPS%2824pgs%29.pdf http://ir.unimas.my/id/eprint/4526/7/Chia%20Hui%20Ching.pdf |
| Summary: | The use of expanded polystyrene (EPS) beads in fully or partially replacing the
normal aggregate is prevalent in the construction industry nowadays. The present
study covers the use of EPS concrete layer to replace the bottom concrete cover of
normal reinforced concrete slab. The aim of this project is to study the flexural
strength and thermal conductivity of the composite layered slab of EPS concrete and
normal concrete. The EPS concrete is prepared by 50% replacing the coarse
aggregate and 50% replacing the fine aggregate by volume with EPS beads. Two
loading patterns are applied on the specimen: shear dominant loadings and bending
dominant loadings. The flexural strengths of the composite layered slab for specimen
subjected to shear dominant (SDEC) and specimen subjected to bending dominant
(BDEC) is reduced 5.60% and 25.66% respectively as compared to the normal
reinforced concrete slab. The results show that the replacement of EPS concrete with
the normal concrete cover performs well under the shear dominant but reduce when
subject to bending dominant. The thermal conductivity for composite layered
specimen shows the temperature increment less than the normal concrete specimen.
The EPS concrete layer acts as the bottom cover has decrease 5.00% from point at
75mm to 25mm from top. The closed air-filled cell structure of EPS beads inhibits
the passage of heat and provides better thermal insulation. The composite layered
slab of EPS concrete and normal concrete is recommended to utilize as roof slab. |
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