The properties of concrete containing coconut shell as fine aggregate
Green environments or environmentally friendly buildings have become a main focus among researchers. It refers to the concept of reusing waste materials to improve or make new products. Therefore, this study aims to examine the use of fine coconut shell (FCS) as a partial replacement of sand a...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2020
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/885/1/24p%20ALIF%20SYAZANI%20LEMAN.pdf http://eprints.uthm.edu.my/885/2/ALIF%20SYAZANI%20LEMAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/885/3/ALIF%20SYAZANI%20LEMAN%20WATERMARK.pdf |
| Summary: | Green environments or environmentally friendly buildings have become a main focus
among researchers. It refers to the concept of reusing waste materials to improve or
make new products. Therefore, this study aims to examine the use of fine coconut shell
(FCS) as a partial replacement of sand and its low thermal conductivity applications.
The first part of the research focused on the characterisation properties of fine coconut
shell and sand through sieve analysis, laser diffraction sieve, specific gravity tests, bulk
density tests, scanning electron microscopy (SEM) and water absorption test. Next, the
mechanical properties of fine coconut shell as a partial replacement of sand in concrete
were determined through slump tests, compressive strength tests, flexural strength
tests, modulus of elasticity tests, splitting tensile strength tests, water absorption tests
and water permeability testing. The second part of the research focused on low thermal
conductivity applications of fine coconut shell concrete through the thermal
conductivity test (k-value) and thermal resistance (r-value) calculations. After
collecting the data, a relationship analysis was conducted to find the optimum
percentage of fine coconut shell replacement. Next, from the optimum percentage, a
wall panel was constructed to check the temperature that penetrated the house. A
validation of temperature data from real monitoring was then conducted using
Autodesk Ecotect software. The results showed that FCS was finer (≤ 600 μm) than
sand (4.25 mm - 150 μm). In terms of mechanical properties, concrete containing fine
coconut shell as a partial replacement of fine aggregate demonstrated better
performance than normal concrete. Apart from that, the thermal conductivity values
for specimens containing coconut shell were lower compared to normal concrete. 50
% of fine aggregate with fine coconut shell was found to be the optimum replacement
percentage as it fulfilled all the requirements set by the British Standard and also that
of previous research. |
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