Mechanical properties of hierarchical structured organic­-ceramic sponges

ANALIA QUIROGA; JORGE CITRONI; IGNACIO RINTOUL

Montpellier

Congreso; EUROMAT 2011. European Congress and Exhibition on Advanced Materials and Processes; 2011

Federation of European Materials Societies, Associazione Italiana di Metallurgia, Société Francaise de Métallurgie et de Matériaux

Selected for oral presentation <!-- @page { size: 21.59cm 27.94cm; margin: 2cm } P { margin-bottom: 0.21cm } Climatic and tectonic catastrophes such as the Katrina hurricane in 2005, the tsunamis in Southeast Asia in 2004 and 2006 and more recently the earthquakes in Haiti and Chile in 2010, have pushed the improvement and development of building materials for cheap, rapid and safe construction. Wool wood cement composites are widely used materials constituted of wool wood and Portland cement. The material presents excellent mechanical, chemical and biological properties. However, their mechanical behavior is not well understood. Here, we propose the WWCC to be a hierarchically structured as 3D sponge, 2D laminated and particulated+fibrous in the cm, mm and micron scales, respectively. We present a deduction and experimental validation of a set of expressions describing the stress-strain plot of such materials.