Production of low density wood-cement composites by vibro-dynamic compaction method

ABSTRACT The aim of this work was evaluate the potential use of timbers from four tropical Amazonian species for production of wood-cement composites by vibro-compaction densification method. Wood particles were made from slab wood of Murici (Byrsonima crispa), Red Inga (Inga paraensis), Inga (Inga alba) e Mata-Mata (Eschweilera odora). All species were considered suitable for composites production according to the CA Factor test. Composites physical (density, water absorption and thickness swelling) and mechanical (internal bond, static bending and compressive strength) properties were evaluated. Wood density and particle size influenced the composites final density and their water absorption and modulus of elasticity properties. The particle surface area also affected negatively the material's axial compressive strength. Method and wood showed potential for production of composites with possible application as filling materials in civil construction.