Abstract Regioselectivity of visible-light-induced transformations a range (hetero)aryl alkyl-substituted ketones bearing several competitive reactive sites ( ? -carbonyl, benzyl and aromatic ring) with N- bromosuccinimide (NBS) was studied under solvent-free reaction conditions (SFRC) in the absence inert-gas atmosphere, radical initiators catalysts. An 8-W energy-saving household lamp used fo...

The huge quantity of concrete is consumed by the construction industry all over the world, probably second largest after water. In India, the conventional concrete is produced by using natural sand from riverbeds as fine aggregate. Dwindling sand resources poses the environmental problem and hence government restrictions on sand quarrying resulted in scarcity and significant increase in its cos...

This study investigates numerically utilizing nonlinear finite element (ANSYS software) and analytically the shear response of Reinforced Concrete (RC) beams. Different beams are considered in current study, such as RC, steel fibre reinforced concrete (SFRC) without web reinforcement, RC externally zone with carbon polymer (CFRP) sheets. Nonlinear model (FEM) is designed to simulate performance...

Abstract This paper concerns an investigation on six large-scale Steel Fiber Reinforced Concrete (SFRC) beams tested in pure torsion. All had longitudinal rebars to facilitate the well-known space truss resisting mechanism. However, order promote economic use of material, transverse reinforcement (i.e. stirrups/links) was varied large scale beams. The latter contained either no stirrups, or min...

This paper presents a novel meso-scale modelling framework to investigate the fracture process in steel fibre reinforced concrete (SFRC) under uniaxial tension and compression considering its 3D mesostructural characteristics, including different types of fibres, realistic shaped aggregates, mortar, interfacial transition zone voids. Based on hybrid damage model consisting cohesive element meth...

One of the principle issues concerning practical application steel fiber reinforced concrete (SFRC) is uncertainty related to its structural behavior, primarily caused by partially random distribution and orientation fibers in SFRC elements. This paper aims provide a better understanding how variance material properties affects flexural behavior beams. First, distributed plasticity finite eleme...