Geotechnical Characterization of Biomass Ashes for Soil Reinforcement and Liner Material

Biomass ashes (BA) have been intensively studied as amendments for soil in earthworks. This paper aimed to geotechnically characterize BA from pines and olive trees compared the Castelo Branco, Portugal. Namely, granulometry, specific gravity, Atterberg limits optimal compaction values were obtained analyzed order valorize residue incorporated into soils. work is part of broader efforts develop an alternative material that can be used hydraulic barriers liners reinforcement. Thus, contribute reductions weight plasticity, filling properties. Further studies are needed, particularly mechanical performance tests.
 Keywords: biomass ashes, geotechnical properties, valorization, reinforcement, liner