논문 상세보기
pp.220-223
This study suggested an improvement of expansion joint and asphalt pavement construction to prevent pavement and bridges damage due to alkali silica reaction. First, for the case study of alkali silica reaction, we conducted a field survey of expressway 15 Mokpo - Muan. As a result, those following damages were investigated such as abutment tensile cracks, pavement crazing and rising, joint contractions and localized damage etc. To prevent this, we applied those following improvements to Muan2 bridge and Samjeong bridge of expressway 15 and confirmed improvement effectiveness by monitoring. 1) Installing an expansion joint on a bridge near pavement slabs(3 points), 2) constructing asphalt pavement after removing concrete pavement(6m). In conclusion, through such improvements suggested above, we expect that we will be able to effectively prevent bridges damage due to Alkali Silica Reaction. Consequentially, it will also contribute improving the safety of vehicles in the expressway.
