Effect of a Novel Vibration Mixing on the Fiber Distribution and Mechanical Properties of Ultra-High Performance Concrete

A novel double-axis vibration mixing technology is presented to further enhance the performance of ultra-high concrete (UHPC). It improves problem inefficient zone in and enhances homogeneity through coupling velocity fields during mixing. The X-CT scan results demonstrate that this fiber distribution coefficient from 0.512 0.581. Moreover, standard deviation orientation reduced, proportion invalid fibers decreased, pore space more uniform. mechanical experimental show new properties UHPC, percentage early strength improvement significant; impact compressive toughness UHPC are also strengthened. expected achieve reduction raw materials dosage with same reduce cost carbon emission.