Abstract
The mechanical properties of cement mortars reinforced with kraft wood-pulp fibres have been studied. The composites were air-cured for up to 450 days. Although the fibre mortars have lower flexural strength values than either autoclaved fibre mortars or air-cured fibre cements, they do have improved values of fracture toughness of approximately 3kJ m −2 at fibre loadings of 8% fibre by mass. This would suggest there may be a use for such products in areas where the materials are subjected to impact, eg, renders on walls or products which are handled frequently such as outdoor gardenware.
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