Potential of Tabas Stone Waste as Additional Material of Concrete for Coastal Protection Structures
The coast has natural protection, but if this natural protection is damaged, the coast can be protected with coastal structures. Concrete is one of the main materials for coastal protection structures such as breakwaters, jetties, groins and revetments. Concrete used in coastal environments must...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
INTI International University
2024
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/2058/1/joit2024_27.pdf http://eprints.intimal.edu.my/2058/2/599 http://eprints.intimal.edu.my/2058/ http://ipublishing.intimal.edu.my/joint.html |
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| Summary: | The coast has natural protection, but if this natural protection is damaged, the coast can be
protected with coastal structures. Concrete is one of the main materials for coastal protection
structures such as breakwaters, jetties, groins and revetments. Concrete used in coastal
environments must have high strength performance to face the challenges of corrosive seawater,
high humidity, and extreme temperature changes. Tabas stone is a Basaltic Scoria stone resulting
from the eruption of Mount Agung which is used by the people of Bali as an ornament in Balinese
buildings. Tabas stone pieces that do not match the size are discarded and become waste. In this
study, tabas stone waste was used as an additional material for fine aggregate of 0%, 10%, 20%
with a concrete design compressive strength of 42 MPa. Cylindrical samples were produced then
soaked in the sea and at the river mouth. Furthermore, the samples were tested to be compared
with concrete samples with curing in standard water conditions at the age of 28 days. The test
results showed that the effect of seawater and brackish water immersion caused a significant
decrease in the compressive strength of the concrete. The addition of the percentage of tabas stone
also caused a decrease in the compressive strength of the concrete. Thus, tabas stone have small
potential to be used as an additional material for concrete filler for coastal building construction. |
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