Evaluation of physical and mechanical properties of wood cement panel using wood flour with controlled granulometry.

Abstract

This work aims to contribute to wood-cement panels research using milling wood, also known as wood flour, whose origin are lumber industries rejects. The usable material are Pinus spp species particles, where the obtained staple fibers were relatively short and inflexible, keeping, however, its resistance. The material in the form of small particles was generated by the process controled particle size milling. This work was divided in two distinct stages: the first stage consisted in wood-cement panels work out, with 25 % of wood flour. The second stage of the experiment consisted in wood-cement panels work out, with 36 % of wood flour. In both stages were used four different granulometry distributions combined with calcium chloride as hardener. The finest flour showed the lower results in comparison with the coarsest flour.