USABILITY OF BASALT FIBRES IN FIBRE REINFORCED CEMENTITIOUS COMPOSITES

Author(s): Zehra Canan Girgin
Paper category: Proceedings
Book title: proceedings of the International RILEM Conference on Materials, Systems and Structures in Civil Engineering Conference segment on Service Life of Cement-Based Materials and Structures
Editor(s): Miguel Azenha, Ivan Gabrijel, Dirk Schlicke, Terje Kanstad and Ole Mejlhede Jensen
ISBN:978-2-35158-170-4
e-ISBN: 978-2-35158-173-5
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 382-393
Total Pages: 12
Language : English

Abstract: In this study, the flexural performance and usability of basalt fibres (BF), which has been
recently introduced, in the fibre reinforced cementitious composites (BRC) are investigated
incorporating mineral admixtures. Two types of sustainable puzzolanic admixtures were used,
nano clay (NC) as a natural resource and granulated blast furnace slag (GGBS) as a
byproduct. The experimentinal studies were carried out in 3,7,28,56,90 and 120-day curing
periods and afterwards in harsh durability test conditions. All the tests were conducted
compared with glass fibre (GF) reinforced cementitious composites (GRC). It is noticed that
the matrix modification have positive effect on the flexural performance of BRC by
puzzolanic reaction. The reduction trend in strains beyond 7 days in 100% cement ones is
retarded to 28 and 56 days by enhancing matrix-fibre interface. In spite of the fact that the
pull-out mechanism is improved during freeze-thaw cycles, BRC is still sensitive to heat-rain
cycles. Meanwhile, there is no sign of alkaline attack on basalt fibre in SEM micrographs.
Further research on BRC is necessary to satisfy the flexural performance in severe durability
conditions.

Online publication : 2016
Publication type : full_text
Public price (Euros) : 0.00