This study investigates the engineering and mechanical properties of basalt fiber-reinforced (FRF) concrete, giving special attention to residual flexural strength dynamic modal parameters. These properties, which have not been thoroughly investigated elsewhere, are a precursor structural design applications for compliant structures (i.e., bridges, offshore platforms, railways, airport pavement). Accordingly, standard notched tests carried out assess concrete's with an additional 0.125%,...

Waste tires pose significant environmental, health, and fire risks. Creative waste management solutions, including reuse, recycle repurpose, are necessary to mitigate those impacts while enriching their valorisation. An innovative solution is the upcycling of recycled steel fibre (RSF) from enhance strength durability concrete. This study thus experimentally examines dynamic mechanical behaviours high-strength concrete with varying proportions RSF, 0% 1.2% by volume. The results reveal that...

Bacterial-based self-healing concrete (BSHC) is a well-known healing technology which has been investigated for few decades its excellent crack capacity. Nevertheless, considered as costly and time-consuming, the performance (HP) of with various types bacteria can be designed evaluated only in laboratory environments. Employing machine learning (ML) models predicting HP BSHC inspired by practical applications using mechanical properties. The predicted to save time cost tests, selection...

According to a recent estimate, over 1.5 billion wasted tyres which containing 40% of vulcanised rubber and 15% steel fibre are discarded yearly, posing serious threat circular economy implementation transition net zero. To minimise the greenhouse gas(GHG) emission environmental side effect caused by burning burying these waste tyres, recycling reusing materials for sustainable structural designs has become centre attention. This paper focuses on applying recycled bead improve shear capacity...

In recent years, adding fibres into brittle concrete to improve ductility has gained momentum in the construction industry. Despite significant momentum, limitations do exist design and industrial applications, contributing complexity of shear behaviours fibre-reinforced existing empirical models that can hardly provide a reasonable prediction, especially for high-strength applications. A critical review reveals current research mostly focuses on single eigenvalue analysis pay less attention...

In the field of structural engineering, exploration steel fibre reinforced concrete (SFRC) beams has recently intensified, particularly due to their improved tension and shear performance structure. This study pioneers a novel reliability analysis capacity predictions for SFRC beams, distinctively classifying datasets into high-strength (HSFRC) normal-strength (NSFRC) categories. A comprehensive database 142 HSFRC 265 NSFRC serves as foundation this analysis, which critically examines...

Effects of welding parameters on spot welded magnesium alloy joints have been investigated. With increasing time, the weld nugget diameter increased and microstructure became coarser. The joint strength (shear load at failure) 2930–3050 N was obtained when time longer than six cycles. Increasing currents from 15 to 23 kA resulted in an increase due diameter. In range 1˙5–4˙5 kN electrode force, lowering force favours improving strength, but too low (1˙5 kN) easily causes metal expulsion. two...

Crack features of resistance spot welded magnesium alloy joint and effects welding parameters on susceptibility the to hot cracking have been investigated. In joints, solidification in weld nugget liquation heat-affected zone (HAZ) were often observed. The formation is related low melting point liquid films between dendrites due segregation Al Mn atoms tensile stress developed during cooling. HAZ, grain boundary occurred became coarser. appears HAZ just adjacent may be induced by at edge...

Abstract Fibre-reinforced foamed urethane (FFU) composite sleepers and bearers are safety-critical components installed in complex railway switches crossings. Not only does they need to provide vertical track support, the must also endure longitudinal lateral actions stemming from wheel rail interactions. In reality, at crossing noses susceptible coupling torsional-flexural loading. The non-linear behaviours have never been investigated numerically nor experimentally. It is thus necessary...