Bio-Wastes as Aggregates for Eco-Efficient Boards and Panels: Screening Tests of Physical Properties and Bio-Susceptibility

Screening tests were developed or adapted from RILEM recommendations, standards and past studies, carried out to characterize some agro-industrial wastes assess their feasibility as aggregates for eco-efficient building composites. Spent coffee grounds, grape olive press waste hazelnut shells used, well maritime pine chips control material. Particle size distribution, loose bulk density, thermal conductivity hygroscopicity properties analysed. The selected bio-wastes did not show good insulation if compared with already studied used Values of density between 325.6–550.5 kg/m3 0.078–0.107 W/(m·K); moisture buffering values higher than 2.0 g/(m2·%RH). Biological susceptibility mould termites also tested, using yet standardized methods. low resistance biological attack confirms one the greatest drawbacks products. However, final products may be changed by adding other materials, pre-treatments production process.