This study aimed to evaluate the effect of elevated temperatures on bond-slip behavior hooked-end steel fibers. A total 180 pullout specimens were tested in post-cooling conditions using a double-sided test with multiple embedded fibers for target between 25 and 750 °C. Results proved that bond strength significantly increases up 450 °C, drastically decreases 600 The contribution hooks reduced ...

An investigation into the mixed mode fracture of steel fiber reinforced concrete (SFRC)beams with one percent volume fraction of steel fiber is presented. A series of notched beams withdifferent notch depths and locations are tested under three-point bending. The test results for apparentfracture toughness, crack trajectories, and fracture energy are presented. The crack paths for SFRCand plain...

Broadband ultrasonic back-scattered energy contains information regarding material structures from which it was scattered. Signal processing techniques use characteristic changes in the back-scattered signals to detect scatterers or reflectors that represent flaws and impurities within a manufactured part. A-scans from materials such as stainless steel, titanium, and composites comprised of den...

In this work, the mechanical properties and microstructural features of an AISI 304L stainless steel in two presentations, bulk and fibers, were systematically studied in order to establish the relationship among microstructure, mechanical properties, manufacturing process and effect on sample size. The microstructure was analyzed by XRD, SEM and TEM techniques. The strength, Young's modulus an...

Mechanical properties of hybrid braided composite rebars are evaluated and compared to theoretical predictions which account for specific processing parameters including yarn size, braiding machine setup, and fiber type. Using a combination of high modulus carbon (Thornel P-55S) and aramid (Kevlar 49) fibers bars have been produced of up to 10 mm diameter with a Young's modulus of 200 GPa, a bi...

The self-compacting concrete (SCC) was invented to overcome the compaction problems in deep sections, owing its perfect workability characteristics. Steel fibers when used with SCC would affect required fluidity characteristics but improve impact resistance. In this research, an experimental work conducted evaluate response of micro-steel fiber-reinforced SCC, under flexural impact. A 5.47 kg f...

The effectiveness of using some natural and/or synthetic fibers such as bamboo, jute, steel fibers, polyester etc. in the soil improvement techniques has been recognized by many researchers. In addition, eco-friendly biomineralization microorganisms have attracted attention recent years. This technique improves mechanical properties precipitating calcium carbonate between particles and adhering...