Field instrumentation for performance assessment of Geobarrier SystemHarianto Rahardjo, Zhai Qian, Alfrendo Satyanaga, Eng Choon Leong, Chien Looi Wang and Johnny Liang Heng WongE3S Web Conf., 9 (2016) 15006DOI: https://doi.org/10.1051/e3sconf/20160915006