Comparative study on self-compacting concrete reinforced with different chopped fibers

Abstract

The development of self-compacting concrete (SCC) is a revolutionary landmark in the history of the construction industry. Incorporation of fibres further enhances the properties, especially those related to the post-crack behaviour of SCC. The fibres used in the study are 12 mm long chopped glass fibre, carbon fibre and basalt fibre. The volume fractions of fibre taken are 0·0, 0·1, 0·15, 0·2, 0·25 and 0·3%. The research comprised two stages: the first stage consisted of the development of an SCC mix design of M30 grade; in the second stage, different fibres, such as glass, basalt and carbon fibres, were added to the SCC mixes and their fresh and hardened properties were determined and compared. Carbon fibre-reinforced SCC (FRSCC) exhibited the best performance followed by basalt FRSCC and glass FRSCC in the hardened state, whereas it exhibited the poorest performance in the fresh state due to its high water absorption. Glass FRSCC exhibited the best performance in the fresh state. This study concludes that, in terms of overall performance, optimum dosage and cost, basalt fibre is the best option for improving the overall quality of SCC.

Self-compacting concrete manufactured with recycled concrete aggregate: An overview

“…The properties of the hardened concrete (toughness, impact resistance, etc.) will foreseeably be improved by the addition of fibers (Jena et al, 2018), although the behavior in the fresh state will, in general, worsen. 2017) used only coarse RCA.…”

Mechanical properties and postcracking behavior of self‐compacting fiber reinforced concrete

“…Zhang et al 22 stated that compressive strength decreased by 4.1% when 0.30% BF content was used in the concrete mixture. Jena et al 23 in their studies investigating the effect of GF on SCC, they concluded that the adding of GF to SCC by 0.30% by volume decreased compressive strength by 4.30%. Komlos et al 24 reported that PPFs have no obvious impact on the compressive strength of concrete.…”

Improved mechanical properties of concrete made with environmental by-products exposed to saline water

“…[6]. The use of silica fume allowed for the investigation of the effect that a variety of chopped fibers would have on the characteristics of self-consolidating concrete [7]. Following the rapid chloride migration test, a model was constructed to explain how chlorine made its way into marine concrete [8].…”