The 12 papers address two issues: problems and techniques in testing and reporting data for strong reinforcement products, and creating a repeatable and reproducible test methodology for those materials. They identify 11 specific problems with the Society's ASTM D 4595 and its ISO counterpart ISO 10

Earth reinforcing techniques are increasingly becoming a useful, powerful and economical solution to various problems encountered in geotechnical engineering practice. Expansion of the experiences and knowledge in this area has succeeded in developing new techniques and their applications to geotechnical engineering problems. In order to discuss the latest experiences and knowledge, and with the purpose of spreading them all over the world for further development, the IS Kyushi conference series on the subject of earth reinforcement have been held in Fukuoka, Japan, every four years since 1988. This fourth symposium, entitled Landmarks in Earth Reinforcement, is a continuation of the series IS Kyushu conferences, and also aims at being one of the landmarks in the progress of modern earth reinforcement practice. The first volume contains 137 papers selected for the symposium covering almost every aspect of earth reinforcement. The second volume contains texts of the special and keynote lectures.

This proceedings contains 89 papers from 25 countries and regions, including 14 keynote lectures and 17 invited lectures, presented at the Third International Conference on Geotechnical Engineering for Disaster Mitigation and Rehabilitation (3ICGEDMAR 2011) together with the Fifth International Conference on Geotechnical & Highway Engineering (5ICGHE), which was held in Semarang, Indonesia, from 18 to 20 May 2011. This is the third conference in the GEDMAR conference series. The first was held in Singapore from 12 to 13 December 2005 and the second in Nanjing, China, from 30 May to 2 June 2008. The proceedings is divided into three sections : keynote papers, invited papers and conference papers under which there are six sub-sections : Case Studies on Recent Disasters; Soil Behaviours and Mechanisms for Hazard Analysis; Disaster Mitigation and Rehabilitation Techniques; Risk Analysis and Geohazard Assessment; Innovation Foundations for Rail, Highway, and Embankments; and Slope Failures and Remedial Measures. The conference is held under the auspices of the International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) Technical Committee TC-303 : Coastal and River Disaster Mitigation and Rehabilitation, TC-203 : Earthquake Geotechnical Engineering and Associated Problems, TC-302 : Forensic Geotechnical Engineering, TC-304 : Engineering Practice of Risk Assessment and Management, TC-213 : Geotechnics of Soil Erosion, TC-202 : Transportation Geotechnics, TC-211 : Ground Improvement, Southeast Asian Geotechnical Society (SEAGS), Association of Geotechnical Societies in Southeast Asia (AGSSEA), and Road Engineering Association of Asia & Australasia (REAAA).

Soil-geosynthetic composites such as those used in mechanically stabilized earth (MSE) retaining walls are experiencing widespread use, particularly in transportation applications. The potential economic benefit of using "lower-quality" on-site material in MSE retaining wall applications is substantial. An experimental research program investigating soil-geosynthetic interaction was performed at the University of North Carolina at Charlotte. To study this composite behavior, the research program employed a large pullout box equipped with state-of-the-art electronic instrumentation and data acquisition. The interaction of two "lower quality" piedmont residual soils (A-2-4 and A-4) with four representative, geosynthetic reinforcement materials (rigid geogrid, flexible geogrid, high strength geotextile, and medium strength geotextile) was examined through a series of anchorage strength tests. Through these tests, insight into the load versus deformation behavior of the reinforcing materials embedded in piedmont residuum was obtained. This report describes the test methodology and presents test results.