FIBER REINFORCED HIGH-PERFORMANCE LIGHTWEIGHT CONCRETES: A LITERATURE REVIEW

Fernando Júnior Resende Mascarenhas

Resumo


The use of steel fibers has become more popular in recent days due to their improvement in cracking resistance. When steel fibers are added to a concrete mixture, they reduce cracks width and create a ductility mode instead of a brittle one, witch improves the deformation capacity. Steel fibers has been added to high-performance lightweight concretes, and concretes with increased compressive and flexural strength has been produced. Moreover, the addition of 0.75% of steel fibers by volume, 15% of Fly-ash and 5% of silica fume has demonstrated to be an ideal amount to obtain high-strength concretes with great mechanical properties. Hence, this paper presents a literature review about High-Strength Fibre-Reinforced Lightweight Concrete pointing out its mainly mechanical properties.


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ISSN 2318-6127 (online)
ISSN 2175-7143 (impressa)
Faculdade de Engenharia e Arquitetura da Universidade FUMEC
Escola de Engenharia da UFMG
Faculdade de Engenharia da Universidade do Porto