Polymer and Steel Fiber-Reinforced Cementitious Composites under Impact Loading—Part 2: Flexural Toughness

2001 ◽  
Vol 98 (1) ◽  
2014 ◽  
Vol 629-630 ◽  
pp. 79-84 ◽  
Author(s):  
Hui Xian Yang ◽  
Jing Li ◽  
Yan Sheng Huang

The dynamic material properties of high performance hybrid fiber reinforced cementitious composites (HFRCC) with various volumetric fractions of steel and polyvinyl alcohol (PVA) fibers were studied by the Split Hopkinson Press Bar (SHPB) test. The results show that HFRCC with higher volumetric fraction of steel fibers are more sensitive to stain rate and the dynamic compressive strength increase more prominently with the strain rate increasing, but peak strain shows the opposite trend. The PVA fibers increase the ductility of HFRCC more effectively than steel fibers. Compared to PVA fiber reinforced cementitious composites (FRCC), HFRCC present better dynamic material properties under impact loading.


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