궤도 흡음판의 성능확보를 위한 재료시험에 관한 연구

Test methods for performance of noise absorbing block materials on railway

The construction of concrete slab track system is increased because the system has advantages which are maintenance free and so on, the other side, the system has weak points such as increase of the cost of the early stage construction and noise levels. Currently, concrete slab track systems has been designed for Gyungbu high speed line stage 2 and Honam high speed line. For those tracks, noise absorbing blocks are considered. Therefore, test methods and proper criteria for structural performance and reduction efficiency of noise absorbing blocks are required. The aim of this study is to provide provisons for installing acoustic-absorptive block on slab tracks.