15. Sustainability and Disaster Mitigation Through Cascaded Recycling of Waste Tires—Climate Change Adaptation from Geotechnical Perspectives

For long-term sustainability, different stakeholders with similar needs must come together and make concerted efforts to realize a recycling economy by actively promoting the recycling of industrial by-products or waste. This paper outlines some of the studies on the successful use of by-products/waste from other sectors in geotechnical engineering, with a focus on utilizing it in geo-disaster mitigation and related characteristics. Waste tire recycling and disaster mitigation are discussed in the light of Japanese experiences, as well as a new disaster reduction strategy developed in Japan using tire-derived materials. This paper introduces some experimental studies on geotechnically connected utilization of geosynthetics that center on tire-derived materials like tire chips and tire shreds. The 1 g shaking table test, one-dimensional compression and permeability test, large-scale triaxial compression and permeability test related to liquefaction-resistant characteristics, stiffness, and permeability of tire-derived materials are introduced here. These experimental results may prove to be helpful for more sustainable engineering design.