Geometrical and boundary condition effects on restrained shrinkage behavior of UHPFRC slabs
作者： Doo-Yeol Yoo , Nemkumar Banthia , Young-Soo Yoon
DOI: 10.1007/S12205-017-0587-9
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摘要: Six large Ultra-High-Performance Fiber-Reinforced Concrete (UHPFRC) slabs were fabricated and tested to investigate the restrained shrinkage cracking behaviors. The use of expanded polystyrene Teflon sheets with two different slab thicknesses was considered improve crack resistance. Free simultaneously measured evaluate degree restraint according above test parameters. results showed that free strains -689 μe -723 obtained after 9 days, prismatic specimens a higher exposed surface area-to-volume ratio (S/V) had slightly than those lower S/V. Increasing concrete thickness using effective at reducing improving resistance UHPFRC slabs. Among various specimens, exhibited lowest by 0.45 days.
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