A NEW HIGH PERFORMANCE FIBRE FOR CONCRETE REINFORCEMENT

the following paper presents the results of a research aimed to the study of a new metallic fibre for concrete reinforcement. The principal characteristics of this fibre is thet is provided by a special anchorage device that improves very much the interaction with the cementitious matrix. The tensile load substained by the fibre is reducing the consequent pullout displacements. So fibre can be loaded till it stretches without great displacements take place and this enhances concrete strength and reduce crack width and propagation. Different tests have been performed; at the end of the paper is presented a diagram that has been obtained as an avarage of different tests executed to compare the new fibres with the conventional deformed fibre