A support tower is the main structure which would support rotor, power transmission and control systems, and elevates the rotating blades above the earth boundary layer. A successful design should ensure safe, efficient and economic design for the whole wind turbine system. It should provide easy construction and easy access for maintenance of the rotor components and sub-components. UHPC mater...

An orthogonal test was conducted to investigate the effect of hybrid fiber on mechanical properties ultra-high performance concrete (UHPC-CA) with coarse aggregate . It used design and manufacture 144 specimens for compressive strength, flexural tensile static elastic modulus test, SEM microscopic test. Considering mass replacement rate (10%, 15%, 20%, 30%), steel volume (0%, 0.5%, 1.0%, 1.5%),...

Fabrication of ultra-high-performance concrete (UHPC) is costly, especially when commercial materials are used. Additionally, in contrast to conventional concrete, numerical procedures simulate the behaviour fibre-reinforced (UHPFRC) very limited. To contribute foregoing issues this field, local were used fabrication process, while accounting for environmental and costs. Micro steel fibres (L: ...

Abstract The benefits of including fibers in ultra-high performance concrete (UHPC) are attributed to their good bond with the matrix and, hence, an optimal utilization properties. At same time, though, fiber reinforcement may contribute anisotropy composite material and induce weak areas. influence fibers’ orientation on properties is a matter current scientific discourse it known play vital r...

This study was carried out in order to the flexural behavior of fiber-reinforced ultra-high-performance concrete (UHPC) containing hybrid microsteel straight fibers and natural fine aggregates under four-point loading. The experimental results revealed that fiber pullout mechanism had a progressive (collapse) mode. A highly crack developed when pulling explicitly triggered, leading failure most...

Because of their tensile strain-hardening characteristics, ultrahigh-performance concrete (UHPC) materials offer significant advantages in terms beam shear capacity and postcracking behavior compared to conventional reinforced-concrete beams. These rely on UHPC’s ability sustain its characteristics at the structural level. This paper reports results an experimental investigation parameters infl...