Experimental analysis of time dependent phenomena and temperature effects on macro-synthetic fibre reinforced concretes in different loading conditions

Simulations of Fractures of Heterogeneous Orthotropic Fiber-Reinforced Concrete with Pre-Existing Flaws Using an Improved Peridynamic Model

“…Zhang et al [ 4 ] conducted Brazilian disc splitting tests on basalt FRC samples with different fiber volume fractions, and studied the effects of fiber content on tensile strength. Del prete et al [ 5 ] studied the creep behavior of polypropylene FRC. Although a large number of laboratory tests, such as the above, have been employed to study the crack propagation and coalescence processes of FRC [ 3 , 4 , 5 , 6 , 7 , 8 , 9 ], there remain some difficulties in studying FRC fractures.…”

“…Del prete et al [ 5 ] studied the creep behavior of polypropylene FRC. Although a large number of laboratory tests, such as the above, have been employed to study the crack propagation and coalescence processes of FRC [ 3 , 4 , 5 , 6 , 7 , 8 , 9 ], there remain some difficulties in studying FRC fractures. (1) To obtain comprehensive and ideal results, it is necessary to perform multiple groups of parallel experiments, which require considerable time and cost.…”

Improvements in test methodology and characterisation of long-term flexure behaviour of fibre-reinforced concrete

“…. Bottom lever arm creep frame designs (a) [85], b) [103], c) [66]) versus top lever arms frame designs (d) [112], e) [106], f) [94]). .…”

“…The published bibliography can be arranged considering the reference test on which the methodology is based and the nature of the stress sustained in time, as shown in Figure 11. So far, most of the available publications (112) are related to long-term flexure creep tests in both prismatic specimens (68) and structural elements (44). The former aims to characterise the long-term properties of FRC material based on EN 14651 [26] standard procedure (or similar), whereas the latter seeks to assess the structural enhancement and performance of FRC elements usually combined with traditional longitudinal reinforcement.…”

“…Temperature is usually kept constant in values ranging from 19 to 25 ºC, being 20 ºC the most used temperature during the creep test. However, Del Prete et al [112] Glass fibres were reported as concrete reinforcement in 2 experimental programmes [85,106] (4.4%), where basalt fibres were reported only once [75] with only two specimens. Many variables were studied in the reported publications, as seen in Figure 23.…”