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Performance Evaluation of Innovative Concrete Armor Unit for Coastal Protection Structure

Hashim, Ahmad Mustafa and Md Noor, Nur Diyana (2013) Performance Evaluation of Innovative Concrete Armor Unit for Coastal Protection Structure. In: 2013 IEEE Business Engineering and Industrial Applications Colloquium (BEIAC), 7-9 April 2013, Langkawi, Malaysia.

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Abstract

Various local innovative armor units for coastal protection structure have been developed to mitigate and control serious coastal erosion problems. The armor units designed by researchers from several institutions in Malaysia include SAUH, SINE SLAB, L-Block and Labuan Block armor. These armor units were implemented to prevent critical erosion problems along various stretches of Malaysia’s coastline. This paper discusses the site assessment that was conducted covering selected coastal protection projects along West Coast of Peninsular Malaysia to evaluate the` performance level and identify concerns regarding these armor units. Initial condition of the armor units and the site location were identified and documented as the base condition for the performance evaluation. Comparisons were later made with current observation and findings. The breakage, displacement and settlement of the armor units were noted and any sign of accretion and erosion were also taken into consideration. Most of the armor units remain intact in their initial position especially SAUH and SINESLAB armor units. Corrosion of reinforcement steel bars was observed in most of the armor units as evidenced from the presence of brownish color substance at the concrete surface. This was caused by intrusion of salt water in the concrete through minor fractures and gaps. No major failure on the armor unit was observed during the site assessment indicating good structural stability as expected in their design life. Overall, the implemented schemes were observed to be performing successfully with occurrence of accretion at most of the sites. The findings and result from this site assessment are important as guidance for future research and other initiative to improve the current innovations. The up-to-date assessment are also critical to estimate further maintenance works to prevent major failure due to prolong exposure to damage that may lead to potentially high maintenance costs to local authorities and nearby residences.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Coastal protection; Concrete armor unit; Performance evaluation; West Coast of Malaysia
Subjects:T Technology > TC Hydraulic engineering. Ocean engineering
Academic Subject One:Academic Department - Civil Engineering - Water and environment - Water
Departments / MOR / COE:Departments > Civil Engineering
Mission Oriented Research > Sustainable Development
ID Code:9841
Deposited By: AP Ahmad Mustafa Hashim
Deposited On:11 Jul 2013 00:08
Last Modified:11 Jul 2013 00:08

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