Comparative Fracture Properties of Four Fibre Reinforced High Performance Cementitious Composites

Abstract

This study investigates the fracture properties of high performance cementitious composites (HPCC) with four different types of fibres and with volume fraction content 3%. The four fibres are steel hooked end (S), polypropylene crimped (PP), basalt chopped (B), and glass (G) fibres. The tests were carried out in accordance with the RILEM recommendations. In order to examine the fresh properties of HPCC the slump flow tests were performed. Twelve fibre reinforced HPCC beam specimens with notch were cast and tested using central point loading experiments. In addition, experimental tests of the compressive strength and splitting tensile strength were carried out. The test results made it possible to obtain representative fracture parameters, such as the equivalent strengths, residual strengths, and fracture energy of fibre reinforced HPCC. The S fibre specimens showed the best performance in terms of workability, compressive strength, tensile splitting strength, and fracture energy at large deflection. On the other hand, G fibre specimens exhibited the best performance in terms of flexural strength, equivalent flexural strength at higher deflection, and residual flexural strength at lower deflection. In terms of equivalent flexural strength at lower deflection and residual flexural strength at higher deflection, basalt fibre specimens performed the best. On the contrary, polypropylene fibre reinforced beam specimens revealed the highest deflection capacity.

Assessment of fracture energy of strain‐hardening fiber‐reinforced cementitious composite using experiment and machine learning technique

“…Moreover, both Xu et al 18 and Yoo et al 20 indicated that the fracture energy of UHPFRCCs showed significant improvements with increasing fiber volume content. In addition, Smarzewski et al 10 investigated that the ranking of performance in terms of the fracture energy of HPFRCCs was steel hooked fibers > glass fibers > polypropylene crimped fibers > basalt chopped fibers. On the other way, Sahin et al 21 concluded that the fracture energy of HPFRCCs increased as the fiber volume content and fiber strength increased.…”

Effect of Aggregate Type on Properties of Ultra-High-Strength Concrete

“…Kusumawardaningsih et al in [ 3 , 4 ] showed that the addition of fibers increases the tensile strength of UHPCs and decreases its compressive strength. In [ 5 ], Smarzewski showed the influence of steel, polypropylene, basalt and glass fibers on the mechanical properties and consistency of high-performance cementitious composites. The highest compressive and splitting tensile strength was obtained by using steel fibers with 50 mm length and hoked ends, while the highest flexural strength was obtained by using glass, straight fibers with 18 mm length.…”

Effect of Short Fiber Reinforcements on Fracture Performance of Cement-Based Materials: A Systematic Review Approach

“…Fibers provide a bridging effect in the matrix to resist crack propagation and distribute stresses [ 24 , 25 , 26 ]. Nowadays, natural and artificial fibers are used in fiber-reinforced cement-based materials (FRCBMs), particularly to enhance their fracture properties [ 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 ]. Among the artificial fibers, steel fibers have been widely, practically use in members (both structural and non-structural) to improve their properties, including resistance to crack propagation, toughness, and impact resistance [ 35 , 36 ].…”