AUTHOR=Kaewunruen Sakdirat , Ngamkhanong Chayut , Sengsri Pasakorn , Ishida Makoto TITLE=On Hogging Bending Test Specifications of Railway Composite Sleepers and Bearers JOURNAL=Frontiers in Built Environment VOLUME=6 YEAR=2020 URL=https://www.frontiersin.org/journals/built-environment/articles/10.3389/fbuil.2020.592014 DOI=10.3389/fbuil.2020.592014 ISSN=2297-3362