Abstract
This study investigates the effect of using different volume fractions of basalt macro fibers (BMF) on the flexural behavior of concrete beams made with 100% recycled concrete aggregates (RCA) experimentally. A total of 4 reinforced concrete (RC) beam specimens were flexural tested until failure. The parameter investigated included the BMF volume fraction (0%, 0.5%, 1%, and 1.5%). The testing results of the specimens were compared to control beam specimen made with no added fibers. The experimental results showed that adding BMF improves the flexural capacity of the tested beams.
Highlights
This study investigates the effect of using different volume fractions of basalt macro fibers (BMF) on the flexural behavior of concrete beams made with 100% recycled concrete aggregates (RCA) experimentally
The results obtained from this study showed that the mechanical properties of concrete made with RCA are decreased with increasing the RCA replacement ratio
The experimental program aimed at investigating the effect of using different volume fractions of BMF on the flexural behavior of concrete beams made with 100% recycled concrete aggregates (RCA) under four-point loading
Summary
Dias and Thaumaturge [16] and Dong et al [17] focused on the mechanical properties of the concrete made with RCA and basalt fibers. The results obtained from this study showed that the mechanical properties of concrete made with RCA are decreased with increasing the RCA replacement ratio. The mechanical properties were enhanced by using the basalt fibers. A few studies examined the flexural behavior of FRC beams. Byung and Oh [18] investigated the flexural behavior of steel FRC beams. The results indicated that the ultimate strength, ductility, and energy absorption capacity of FRC beams were considerably enhanced with the addition of steel fibers. This study discusses the experimental results for the flexural testing of large-scale basalt FRC beams made with 100%
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