Assessment and Strengthening of Cement Plant Clinker Silo Structure Due to Corrosion of Reinforcing Bars

Strengthening and repairs need to be carried out on the clinker silo of the Lhoknga Cement Plant, where there has been significant damage, making the silo unable to function at full capacity. Damage to reinforced concrete where cracks and spalling occurred as well as corrosion of reinforcing steel was assessed. The assessment was carried out using the following methods: visual inspection, rebound hammer test, ultrasonic pulse velocity test, and corrosion potential measurement using a half potential cell. From the assessment results, there have been many cracks and severe corrosion in the reinforced concrete slab, which reduces the strength of the structure. For this reason, the structural strengthening of the slab using CFRP was carried out so that the structural capacity can increase and be able to withstand the required working load. Meanwhile, in the clinker silo wall, the potential corrosion is still at a moderate level and does not pose a significant hazard to the structure in the near term.