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VOL. 1, ISSUE 2 (2025)
Seismic performance and durability assessment of bamboo-reinforced concrete structures in coastal engineering applications
Authors
Budianto Sastrowardoyo
Abstract
The incorporation of
sustainable reinforcement materials in structural engineering presents an
opportunity to reduce environmental impact while maintaining structural
integrity in marine environments. This study investigates the seismic
performance and long-term durability of bamboo-reinforced concrete (BRC)
composites subjected to cyclic loading, salt-spray exposure, and wave action
conditions characteristic of coastal regions. A total of 120 reinforced
concrete specimens were manufactured using three reinforcement types:
conventional steel rebars (control), treated bamboo strips, and hybrid
bamboo-steel composite reinforcement. Specimens underwent 500 hours of
accelerated salt-spray testing (ASTM B117) and cyclic loading simulations at
0.5g, 0.75g, and 1.0g peak ground acceleration. Compressive strength retention
after durability testing was 94.2% (±2.3%) for BRC specimens and 91.6% (±3.1%)
for hybrid composites, compared to 88.5% (±4.2%) for steel-reinforced controls.
Flexural capacity under seismic loading showed that BRC structures exhibited
superior damping characteristics with a 23.4% increase in energy dissipation
relative to conventional reinforcement. Cracking patterns indicated delayed
crack initiation in BRC specimens, with maximum crack width of 0.28 mm (±0.05
mm) compared to 0.41 mm (±0.07 mm) for steel controls after 1.0g seismic
simulation. Durability assessment revealed that treated bamboo composites
maintained structural coherence in high-chloride environments, with
corrosion-induced strength loss of only 4.8% over 18 months of simulated marine
exposure. The findings demonstrate that properly treated and engineered bamboo
reinforcement offers comparable or superior performance to conventional
materials in coastal applications while providing significant environmental and
economic advantages. This research establishes design guidelines for BRC
structures in seismic and corrosive environments, contributing to sustainable
construction practices in vulnerable coastal regions.
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Pages:11-16
How to cite this article:
Budianto Sastrowardoyo "Seismic performance and durability assessment of bamboo-reinforced concrete structures in coastal engineering applications". World Journal of Engineering and Technology, Vol 1, Issue 2, 2025, Pages 11-16
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