Wood-cement compatibility of some Eastern Canadian woods by isothermal calorimetry

The compatibility of five softwood species (white pine, jack pine, balsam fir, black spruce, tamarack), five hardwood species (aspen, sugar maple, yellow birch, white birch, American beech), and black spruce bark with type 10 Portland cement was evaluated with the aim of selecting those most suited for the manufacture of wood-cement composite panels, after seasoning. The experiments were performed by isothermal microcalorimetry. From the trend observed, softwood species showed the greatest potential for the manufacture of wood-cement panels, with a compatibility factor higher than 40 percent; whereas the hardwood species had a compatibility factor lower than 35 percent. Black spruce bark proved to be unsuitable for the manufacture of wood-cement panels, with a compatibility factor of 2 percent.

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