Influence of polyester macrofibers on selected physical and mechanical properties of cement composites
Agnieszka Ślosarczyk, Wojciech Wierzbicki
Quarterly No. 4, 2015 pages 250-254
DOI:
keywords: concrete, polyester fibers, physical and mechanical properties
abstract The research proved that polyester fibres, when added to concrete (2% of volume), improved its fracture resistance, however, the effectiveness of the fibres depended greatly on the strength class of the concrete. Much better co-operation of the fibres with the cement matrix was observed in the case of C25/30 class concrete. The application of higher class concretes (C35/45) results in decreased ability of the fibre to transfer loads after the cement matrix cracks. The addition of fibres seems to be positive in terms of the compressive strength. Depending on the concrete formula, for composites with polyester fibres a 6 to 15% increase in compressive strength was observed, as well as a decrease in abrasibility by 20÷50%.