Changing wastes into raw materials is one of the most favoured options for waste management, as it
diverts wastes from landfill and saves resources. Fibres, either vegetable (cellulosic) or synthetic,
may be added to cement pastes in order improve the properties of concrete or mortar by
reinforcement. At the same time, if our source of fibres is wastes, then such processes make ways for
recycling. In this work we studied the compatibility of residues from the nonwoven textile industry
with Portland cement, with the aim of manufacturing fibre-cement composites. The temperature of
cement setting was monitored and when fibre or other materials were added to cement pastes. The
textile waste from needling machines investigated here is not compatible with cement. The reason is
ascribed to a higher cotton content (65%), which enables cation exchange to occur in cement
suspensions, and that disturbs cement setting reactions. On the other hand, however, synthetic fibres
do not seem to hinder cement setting